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Showing content with the highest reputation on 26/06/20 in all areas

  1. 28 points
    This post is essentially an update to one made earlier this month. Demand for astronomy equipment during the pandemic is very high. Higher even than Christmas! But whilst China have reopened, manufacturers are struggling with high demand, materials shortages and reduced shipping channels. A perfect storm! In an attempt to stay on top of the situation 'everyone' at FLO is working overtime. My own working day starts at 5am, seven days a week, and has done for a while. We have also employed two extra full-time people in dispatch (Nathan & Dan) and another full-time person (Alex) for the Helpdesk. Our biggest challenge is how to keep our websites stock availability indicators up-to-date and our customers informed during such a turbulent time. Doing this for Sky-Watcher products is especially difficult. We source most products direct from the manufacturer and hold stock at our warehouse but in Europe retailers must source Sky-Watcher products through a distributor. All communications to/from Synta (Sky-Watcher) are through a distributor. The distributor closed when the lockdown began then reopened with reduced staff. They are working hard in difficult circumstances to catch up but are only now finding how many products sold while they were closed and how little is coming out of China. It has not been possible for them to keep us regularly updated. Normally we practice a duck-on-water approach (calm on the surface while paddling like crazy underneath!) but we are past that. We are predicting it will take China 3-4 months to catch up so I think it important we share this with you (this situation affects all astronomy retailers) and ask you to please continue being patient until supply has caught up with demand. On a positive note. Interest in astronomy is at an all-time high and FLO has never been in such good health with a warehouse full to bursting and more staff than you can shake a stick at. Thank-you sincerely for your patience and understanding during these extraordinary times. Alex, Annette, Ann, Dan, Grant, Ian, James, Katie, Lisa, Martin, Nathan, Rob & Steve
  2. 11 points
    Hi everyone, The attached image is the result of just 32 mins worth of RAW subs captured from my severely light polluted back garden, stacked in Deep Sky Stacker, (with darks but no flats), and processed in StarTools and Paint Shop Pro, (I really have no idea of what I am doing though). Scope is a Skywatcher 250PDS and camera is a Canon Rebel XS, (1000D). In terms of my processing in StarTools I'm not sure my technique is any better than last years attempt but one thing that is obvious is that even though my subs were longer this year, (75 secs), the stars are rounder and that is thanks to the fact that I am now guiding using a ZWO ASI 120MC camera attached to my Skywatcher finderscope. My next purchase is going to be a CLS filter as to say the light pollution in my back garden is bad would be an understatement!
  3. 9 points
    Hope I've posted this in the right place. But tonight I Managed to get home just in time to snap this on my heritage 150p. Never have I taken a picture of the moon before.  After my frustration with my scope this week I am so pleased with this shot. Auto mode / ISO 800 / shutter 1/24s
  4. 7 points
    I'm impressed with this 2x2 binning, first time using it - current work in progress but over the moon to see the initial result.. All processed in Pixinsight, this is just ABE after integration then combination using the SHO-AIP script with only the Ha, OIII, SII data and clicked the remove pink halos! . No other processing so far other than a crop, rotate and flip so I could see the Pelican itself. I might grab some more SII if I get the chance and see if that brings out anything further. This is about 12 hours of data, though not sure if I should count the 2x2 as double time 36 Ha 600s 1x1 (Green) 23 OIII 600s 2x2 (Blue) 14 SII 600s 2x2 (Red) ASI1600 & ZWO unmounted filters.
  5. 7 points
    My last run on Saturn seems to be the best of the runs from this morning! Ive pushed the processing as much as I dare but all in all pleased with the result at this low elevation!
  6. 7 points
    13.2 hrs Integration Ha3.5nm Oiii 7nm Link for Astrobin for other capture details. Astrobin Roger
  7. 5 points
    Well tis the 25th of June Brian
  8. 5 points
    And i will try again.
  9. 5 points
    Thought people may like to see my recent custom design for my SkyWatcher Heritage 130p... As a big Apollo misson geek, and not being a fan of the stock astronomer names wrap on the 130p, I decided to get creative. I used a great moon wall sticker just £6 from Ikea (https://www.ikea.com/gb/en/p/kinnared-decoration-stickers-moon-00448463/) as well as some matt vinyl stickers from Redbubble, one for each Apollo mission patch. Below is pics of the mod in progress and the end result - would love to hear what you think!
  10. 5 points
    It's just a phase it's going through........ ( ok...I know... gibbous a break... )
  11. 5 points
    Pentax XW 5mm ordered.
  12. 5 points
    Managed to get home just in time to snap this on my heritage 150p. Never have I taken a picture of the moon before.  After my frustration with my scope this week I am so pleased with this shot. Auto mode / ISO 800 / shutter 1/24s
  13. 4 points
    According to spaceweather.com Comet Neowise looks good to be around 2nd mag in July. COMET NEOWISE UPDATE: Good news for sky watchers. The Solar and Heliospheric Observatory (SOHO) is monitoring Comet NEOWISE (C/2020 F3) as it passes by the sun this week. Not only is the comet still intact, but also it has brightened to magnitude +2.4. This means it is likely to be an easy naked-eye object when it emerges from the sun's glare in mid-July. LATEST IMAGE. OK, we've been here before, but it will be true some time! I for one will be watching its passage round the sun on the SOHO web page, with just about everything crossed that it gets round the sun unscathed!
  14. 4 points
    Hi All, This is my first real attempt at narrowband imaging (apart from a couple of test exposures). This is about 2.5 hours from last night (Ha, OIII, SII). Mainly 40 x 180" subs in Ha. Fully processed in PixInsight. SW150PDS - Baader MPCC - ASI1600MM on EQ6R-Pro. Guided with PHD2. My main issue here is my Coma Corrector, which I am told may not be spaced correctly - any further advice on this gladly received! The stars in the corners (even when cropped) are really elongated - almost as if the CC was not in place. I really need to fix this! However, I am sure there are many more issues so...…….Criticism and Comments welcome! Clear Skies! Steve
  15. 4 points
    A warm summers night, nicer outside than insdie a hot house. No nautical night, so I thought I would just browse the heavens, keeping a single frame as a souvenir of my tour. The colour image is based on single frames of L, R, G, B. Usual exposure length around 3 mins. Brocchi's Cluster (part of ) Cave Nebula in Cassiopeia Dumbbell Nebula IC 1848 and IC1871 M8 Lagoon Nebula M11 Wild Duck Cluster M16 Eagle Nebula M17 Omega Nebula M18 M0 Trifid Nebula M22 M56 M71 M57 Ring Nebula Part of the Veil Nebula Equipment: Skywatcher ED80 at F/7.5, Skywatcher EQ6 Pro GEM, ZWO 1600MM Pro, ZWO EFW with ZWO LRGB filters, QHY5IIC guide camera on Skywatcher 9 x 50 finderscope
  16. 4 points
    Ha with Lunt 60mm and D/S Chameleon cam 200 frames stacked do the clicky thing for full res.
  17. 4 points
    The Western Veil.I only have an old canon 1000D to image in widefield,so this is the result of 3hrs of 480 second subs with this camera.The noise was quite poor with these warm nights,so it did.nt help matters. However I,m quite satisfied with the result of this old astro modded camera.It looks like I,ve just caught the edge of Pickerings Triangle,shame I did,nt frame it better. I did calibrate with the usual. Cheers all. Mick.
  18. 4 points
    Evening moon shots. Was going to be a mosaic but middle section data was corrupt. C925 with the 178 mono and ir pass 642. best 25% of 1k stacked in AS3 and sharpened in registax. Final processing in photoshop.
  19. 4 points
    This type 1a Super Nova was discovered by Atlas just yesterday. I was fortunate to be given the heads up by a good friend. It is mag 16.4. At first I thought it was the obvious bright star (silly me, I should have known better as I have visited M85 before with the camera) but it is the faint intruder just below it. Worth re-visiting but we are rapidly loosing our chance as M85 is setting by the time we get past twilight. Mike
  20. 4 points
    I'm an idiot. I just pulled the cover off the front to have a look how much the focuser projected into the tube to be confronted by three mirror supports. I'll let myself out....
  21. 4 points
    Heres an edit of the photo to bring out some details
  22. 3 points
    Some recent photos - all taken with a smartphone (Hauwei P20 Pro or P30 Pro) and either with a SW 130p on an untracked mount or a basic camera tripod First attempt at a DSO - Not too bad for a phone with a 1 sec exposure on an az mount - but I think I will wait for my DSLR!
  23. 3 points
    I hope people don’t mind but I wanted to share this article which I have written for my astronomy club newsletter. It follows on from the fantastic videos which SGL has hosted over recent weeks and the inspiration it has given me to do something different. John A night with Hercules Lockdown has touched us all in different ways and we now find ourselves using new technologies for entertainment and socialising outside of the traditional TV, books and movies. Zoom, Skype and Teamster have now entered our vocabulary and have kept us in contact with family, friends and colleagues. YouTube has become another source of education and/or entertainment and in the world of Astronomy it allows us to keep in touch with missed BAA presentations and similar offerings from amateur and professional contributors. Who would have thought the day would come when part of your evening entertainment would be to catch up on a recording on music relating to astronomy “Herschel to Hawkwind”! Recently I was inspired by such a Zoom presentation, not to take up the trumpet (though playing it under the stars at 2am to the annoyance of my neighbour and his bright security light did cross my mind) no, this was two excellent presentations by Ian and Mark @ Beaufort on splitting doubles and a guide to observing. On this occasion the host was The Stargazers Lounge, an astronomy forum which now produces weekly presentations on all manner of astronomy related subjects. For more information see https://stargazerslounge.com The first presentation on doubles concentrated on five easy targets which anyone with a good pair of binoculars or a small scope would have no problem splitting. This was followed by a really interesting guide on observing in which the presenter walked through his approach to equipment, set up, target acquisition and the actual session itself. The video presented by Ian and Mark can be found here https://www.youtube.com/watch?v=qcHaTnrLaJw&t=0s Astronomy can be as simple or as complicated as you want it to be and my garage is a testament to this with GOTO mounts, GPS, cables, cameras and the plethora of technology that never seems to end. Sometimes, the Mark I eyeball is good enough, though maybe on this occasion we will stretch to a small scope. Back to basics So, duly inspired to return to visual astronomy I broke out my Celestron Nexstar 6SE (F/L 1500mm) and SkyWatcher AZ5 mount. No GOTO, no electronics or gizmos unless you count my red dot finder. I also grabbed four eyepieces; 25mm, 15mm and 12mm BST StarGuiders with a 60 apparent field of view and a 40mm Vixen NPL with a 40° apparent field of view. Each offered 60x, 100x, 125x and 37.5x magnification respectively and fields of view ranging from 1° to 0.48°. In addition, I dusted off my copy of the Illustrated Guide to Astronomical Wonders, Sky & Telescope’s Pocket Sky Atlas and Interstellarium Deep Sky Atlas. Tonight, planetarium software would be left on the shelf and play no part. Using the techniques described in the video I sat down yesterday evening with the Sky & Telescope Pocket Sky Atlas and determined that my target that night would be the constellation Hercules. Just after 11pm it would be visible high in the South where I would have a good clear view of it. I then turned to the Illustrated Guide to Astronomical Wonders which provides details of targets to view in each constellation. Looking up Hercules I decided to keep the session light touch and just concentrate on five targets. On this occasion I chose; 64 (Rasalgethi) - an easy double. 65 (Sarin) - another double just north of Rasalgethi. 75 - the last double on the list close to the upper left star making up the Hercules ‘keystone’ asterism. M13 - obviously! A beautiful globular cluster. M92 - another globular cluster but slightly harder to locate. These targets were listed in my observing notes along with RA/Dec and the pages where they appear in the Pocket Sky Atlas and the more detailed Deep Sky Atlas. Both of these books would join me outside tonight. Session Observing commenced at 10pm BST and too early to observe my targets as the sky remained light. The Moon was visible in the West and I took the opportunity to check that my red dot finder was properly aligned to my telescope. Having established all was well with the finderscope I then took a look around the waxing crescent with my eyepieces. I must confess that I am ignorant of the Moon. As I spend most of my time imaging, I tend to either try and avoid it or shake my fist at it when gradients appear in my hard earned data. Tonight, I was in awe of it. Sadly, I couldn’t tell you the names of what I was looking at so maybe there is another project in the making. By now Arcturus had revealed itself to me and I rotated the mount East and North to bring it into view. Lining up the red dot finder brought Arcturus into the centre of my 40mm eyepiece and I slowly worked through each, enjoying that soft red glow. The star was also shimmering due to the days heat rising from the ground and I thought that this would be a problem later but it proved not to be the case. Having enjoyed Arcturus, I looked further East and could make out the triangle of Rasalhague and Kappa Ophiuchi with my first target, Rasalgethi, at the apex. Aligning my red dot finder, I was able to bring Rasalgethi into view. Both my 40m and 25mm eyepieces failed to separate the primary and secondary, however, switching to 100x magnification I did discern a small separation which was confirmed when I stepped up to 125x. I don’t’ know about you but I now see why observing doubles is so popular, watching that split ‘pop’ into view is so satisfying. Having seen that I could split two stars with a separation of 4.8”, I was confident about the rest of the night. Turning my attention North and a slightly easier separation of 11” between Sarin and its secondary, I could just make out a split between the two with my 40mm. My 25mm confirmed this as a clear double and Sarin’s white colour. The secondary was more difficult and neither my 15mm or 12mm eyepiece could confirm the colour either. It is listed as blue-white so I will have to take that as read or buy a larger aperture scope! Moving on now to 75 Rho and the hardest double of the session with a separation of 4.0”. It was not only a hard because of the separation but also hard on my knees! “Oh, for a GOTO mount” I thought as I knelt on the patio looking up towards the Zenith through my finderscope wearing varifocal glasses and viewing through the wrong part of the lens. Not only was that a challenge but matters got worse when I discovered I couldn’t reach the slow-motion controls to move the scope. Oh, deep joy! Still, I persevered and was rewarded when my target came into view. 40mm revealed no split but the 25mm suggested a split with averted vision. I decided to confirm if I was correct before increasing the magnification by checking the position angle, yep 321degrees, roughly where I thought I could see it. At 100x magnification I confirmed the split and colour of both stars as white. Maintaining a steady image was difficult due to the vibration of the scope as I adjusted focus and this got worse when I stepped up to 125x. Adjusting the azimuth to bring the double to the East side of the eyepiece I watched it settle and come into focus as it drifted across to the West, a lovely sight. Next on the list was M13, the Great Hercules Cluster. By this stage I had decided not to observe M92. This was even further North than 75 Rho and I did not even want to imagine what position I would have to put myself in to locate it in the finderscope. Fittingly then I was saving the best view until last and it did not disappoint. Rather than contort my body to try and find M13, I took the chance that if I used my 40mm eyepiece with a 1degree field of view and rotated the scope towards the West I just might have M13 stumble into view…and it did. What a sight. At 37.5x it was a bright smudge in the centre of the eyepiece and moving up to 60x I could discern the bright core separated from the halo of stars surrounding it. With averted vision I thought I could resolve brighter individual stars outside of the cluster. 100x showed some of the brighter stars around the periphery of the core but 125x looked slightly dimmer and did not offer any additional detail. Conclusions The session ended at 23:54 BST and I could not have been happier with the outcome. I got to split some stars, view one of the best globular clusters in the Northern sky and stretch my back! Reflecting on last night, I now appreciate that viewing the night sky in this way is harder but it also gives you a sense of satisfaction. Being able to research your targets and plan a night’s observation is fulfilling and certainly gave me a better understanding of what I was looking at, how to use star charts and even where the cardinal points are in my eyepiece. I also think it helps your observing skills. Because I spent more time locating my targets, I felt compelled to spend more time with them and dare I say, observe rather than ‘see’. What would I do differently? I think it’s obvious don’t you…..I need to get better at star hopping for my back and knees sake!
  24. 3 points
    Quite enjoying wide field imaging at the moment, so pointed the camera towards the Sadr ( Gamma Cygni ) region last night. started clouding over at 1:30 am so only managed 1.5 hours of good data, but really happy with the result, really nice field of view including the crescent nebula at the bottom. So this is 6 x 15 min subs in Hydrogen Alpha, with the Atik383L CCD & my old Pentax 135mm SMC @f5.6. Considering this lens was full of fungus and had it to bits for cleaning its not doing too bad is it Now is using an EQ8 overkill for imaging with a 135mm lens LOL, and guiding with my 5" triplet at 950mm FL? Lee
  25. 3 points
    I have doubled the data gathered on the SADR Region image previously posted. Although I was aiming for a lot more....with short nights and the urge to change targets....I have processed almost 13 hours Narrow Band data now for this area and am happy to leave it (for this year) as a completed image. When one processes data - sometimes it all comes together easily and other times not. I feel that there are areas in this image that could be improved on.....but I never did have enough patience to be a perfectionist .....so hope it is acceptable as is. (Next year we can look at improving things). there is is higher resolution copy (and the capture details) on my website at: https://www.kinchastro.com/ic-1318-sadr-region.html
  26. 3 points
    Mark you it's a much better problem to have than sales at zero and laying off staff. FLO have shown that when mistakes get made they fix them which is all you can ask when they are under pressure. Regards Andrew
  27. 3 points
    They are here. We have stock of both models at our warehouse. Have just been soooo busy. Sorry It isn't only the CEM70. We have lots of new products piling up waiting for an opportunity to add them to our website and announce them.
  28. 3 points
    An OVL 82° Nirvana-ES 7mm, which I'm expecting to be especially useful in the 102 Skymax. I have the 4mm and it's great in the 150p, but obvs too much for the Skymax... ... and a Brucie Bonus RDF.
  29. 3 points
    Indeed it is an aeroplane - at about 500 feet - never mind the belly nav lights, in daylight you can see the faces at the windows! Moving from CCD to CMOS has been a benefit for me inasmuch that I no longer try to get 300+ second exposure subs. Settling for 180s/120s has reduced my discard rate a lot. At night a certain carrier's planes can be landing at roughly 5/6 minute intervals. I don't just pray for a clear night I also pray for a westerly wind! We are indeed unique - and maybe that's how it should be. Some were getting excited about Betelgeuse going supernova a few months back with little apparent thought for any life form that event might extinguish either in it's own solar system or a close neighbour. I just hope we earn the right to travel to another star system long before we gain the ability and with what I learnt when I did my physics degree it is perhaps no bad thing that we are destined to stay right here. Right - that's enough deep thinking for today - I'm off to paint a wall. Adrian
  30. 3 points
    Well, UPS from Germany Bought this easy-assemble Vasagle 'industrial' side table. It was intended as a 3d printer stand as it's solid and rigid and should hopefully make printing more consistent: Louise
  31. 3 points
    Put a black dot where the bubble is in the second picture.
  32. 3 points
  33. 3 points
    A lesser known sibling to the great Hercules cluster, here's Messier 92. During these clear, moonless summer skies skies, I have decided to go on a tour of the globular clusters. Maybe I will even make a collage of them by the end.
  34. 2 points
    Friday was an exciting day as my 10mm Delos arrived. I have a 9mm Lunt XWA which is a great 100 degree eyepiece but lacks in sharpness and contrast compared to my favourite 9mm ortho (BGO). I've been pondering for quite awhile whether to sacrifice some FOV to get better contrast and sharpness. The 10mm Delos is my experiment to see how that works out in practise. It was after midnight before I got out with the 10" dob. I spent some with Jupiter and Saturn to start with. Initially, I struggled with the eye relief on the Delos but then I discovered the twist up mechanism and all was well. On Saturn, the first thing that grabbed me was that I could easily pick out Rhea and Dione with the Delos. A good sign. After that I moved onto some DSO's, M71 and then M27. I added the Lumicon UHC filter to M27. The mag 11 star on the corner of the dumbbell seemed to really pop in the Delos when compared to the Lunt. Comet C/2017 T2 and a collection of galaxies in Ursa Major all showed well. M51 showing the slightest hint of spiral arms in the TV eyepiece. A tantalising hint of what this eyepiece may show under dark skies. I finished up my eyepiece testing on M13 and it's companion galaxy NGC 6207. The propellor in M13 put in an appearance which was great to see. Looking overhead the Milky Way was very clear for my suburban skies. I wandered inside to grab the camera and took some photos. Taking the camera with me, I strolled out into the street to see if I could find a place to shoot the Milky Way with Jupiter and Saturn. I then spotted some lovely Noctilucent clouds on the horizon so starting walking a little further to try and get a good shot of them. Ended up walking over a mile, meeting a hedgehog who I assume was just getting back from the pub. As I returned back to my house, I spotted that Mars was well risen. With the time now around 2:30am, I spent 10 minutes or so with the red planet. I was able to see some nice dark features on the surface and a light area on the bottom of the planet which I took to be a polar ice cap. Great way to finish the night. Finally crawled into bed at 3am. Pictures below. I'm still a beginner, especially with processing images but I'm improving.
  35. 2 points
    24/06/20 Preston, UK Elephant Trunk Nebula AA 102 ED-R SW NEQ6 Pro Zwo ASI294MC STC Duo narrowband filter Zwo ASI290mm Zwo ASIair Pro Software- APP, Pixinsight, PS 22x 300s Gain 200
  36. 2 points
    Perhaps the title is lying a tiny bit... After sleeping for one hour I woke up not able to fall asleep again after numerous attempts. I took the obligatory gaze outside at the bright summer sky with some faint noctilucent clouds towards the north. Jupiter and Saturn looked beautiful in the south and that was when I felt a sudden itch to get out my small grab and go setup. I quickly grabbed my tripod, mount-head and telescope to head downstairs to the parking lot where I quickly set up the scope. Cool-down was almost not a problem because of the hot 20 degree air which was very comfortable observing temperatures. Starting with Jupiter, after I had achieved focus on Altair, the two main cloud bands very obvious together with three of its moons hovering like pin-points around the perfect round sphere. I've previously been a little disappointed with the view of Jupiter with this small Skywatcher Evostar 72ED DS-Pro but I blamed it on my own patience and this morning I proved myself right. After studying the planet for a couple of minutes I noticed the Ganymede shadow transit located just above (almost on the edge of) the northern equatorial belt and letting the planet drift through the FOV at 90X magnification with the 4.7mm explore scientific eyepiece the shadow together with the bands popped at me at times of great seeing. The moments where you're almost "falling into" a better and better planetary image is truly amazing and the small 72mm scope did a very good job also resolving the shadow transit as a "globe" rather than a dot. Only rarely could I tell the slight variations in the two main cloud bands of Jupiter but this was very difficult with only 72mm. Saturn proved to be equally fascinating just like every other time I point the telescope towards the ringed planet. Immediately slight banding was visible on the planet and the rings were very defined with the Cassini-division visible in moments of good seeing but really standing out in brief moments of very good seeing. The small evostar 72 has no problem on Saturn whereas more patience is required with Jupiter because of its low contrast features. Saturn never disappoints. Moving on to Mars I noticed how it had increased slightly in size since I observed it last time about a month ago. The southern polar cap was still very obvious but for some reason I recalled it being even more noticeable last time I observed Mars but I could be wrong. Right above the polar cap was a dark spot which extended to the planet's equator but not covering the entirety of the disk's width. I didn't notice any features on the northern half of the disk. The evostar does a surprisingly good job on Mars, which often causes problems for other doublet refractors with trouble correcting the red part of the visible spectrum. The evostar doesn't have much unfocused red light around the planet and the view isn't "mushy" like it would be in cases of a badly corrected refractor. I love my grab and go setup but I also feel like I need a higher magnification eyepiece since my current weapon of choice is my 4.7mm explore scientific 82 degree eyepiece which delivers about 90X magnification. I've almost always felt I could easily push magnifications to the plus side of 100X and the Nagler zoom 3-6mm is ranked very high on my wish list:) August this year marks the first year of owning the Skywatcher Evostar 72ED DS-Pro and I haven't had a moment where I didn't love it. The size of it is perfect and the supplied flight case for the scope is airline portable together with some room for accessories. The optics are very good even for decent planetary observing like it was the case this morning, and I feel like I haven't utilized the scope's abilities entirely just because I think it could take even higher magnifications. I have also used it for astrophotography on my star adventurer which yields very good results with the OVL field flattener and my old Nikon D3300. This post ended up being quite long but I hope it was worth the read anyways. If you're considering the Evostar-72 I once again highly recommend it if you couldn't already tell from this post;) Clear skies, Victor
  37. 2 points
    I've been in SW Ireland since March, and my neighbour has been looking after where I live SW of London. As a gesture of thanks for his efforts, a couple of weeks ago I sent him unannounced a Heritage 150p, as he has expressed an interest in my astro shenanigans in the past. Last Monday I had to go back to London for a week or so after an unexpected terribly sad family event. But I did get to have a strange night's observing, followed by an afternoon. Wednesday I think I was out on my patio near midnight with my LZOS 105mm refractor on Skytee2, cruising through Ursa Major as I recall, and I could hear he was using his scope the other side of the 8 foot brick wall between our patios. then I heard him whisper-shout a faint "Magnus?". What ensued was me guiding him around the sky, shouting as quietly as we could over the wall. I think I started him out on too difficult a very first ever target, Epsilon Lyrae. His 12-year-old daughter (it was really her present) was operating the iphone and instructing him as to what he should be seeing. They hadn't been able to line up their RDF properly, so their navigation was a little difficult. But they eventually did find the Double-Double, but couldn't quite split the pairs. They were just aware that one of the doubles was not a point. To be fair, even with my 4" using similar maginfication I couldn't quite split one of them either. I then directed them to Mizar/Alcor. They were using a SW LET 25mm eyepiece (30x) and again trying to find it without a finder or RDF. Nonetheless they found it quite quickly, and I found it so gratifying when I heard over the wall "Ah, found it. Oh. Oh. Oh my goodness, Oh God that's lovely! Sophia [his 12-year-old], come and look at this!". I arranged for the next afternoon to go round and see how well it was collimated "out of the box" (not very well, as it turned out), and to see if we could find "daytime Venus". Around 1pm, I went round, collimated it, it was quite a bit out, and hunted around for Venus, 29 degrees or so away from the Sun. Having resaerached where it should be using the app "Sky Guide" (which I really like) he found Venus quite quickly through 10x50 bins, and eventually I found it in the scope. He was amazed a planet was so visible when you found it yet so not-noticeable, in total broad full-sunshine (30 degrees C !!!!!). I swapped in my DeLite 18.2 instead of his SW 25mm LET, and there really wasn't that much difference! I'd given him also my 9mm and 25mmm LETs that came new with my mak180. Those LETs are a very good improvement over the regular OEM SW eyepieces. So, all in all, I recruited one, very likely two, to this game of ours, and had a very memorable evening and afternoon. To offset the otherwise sad reason for my week's return to London. M
  38. 2 points
    Poor conditions but had to give it a shot. C925 and 294mc pro camera, best 20% of 2k stacked in AS3 and sharpened in registax.
  39. 2 points
    25_6_20- Full Disc Pseudo Colour by Stephen Jennette, on Flickr 25_6_20- Full Disc Pseudo Mono by Stephen Jennette, on Flickr 25_6_20 Inverted Disc Normal Proms Mno by Stephen Jennette, on Flickr Lunt L60 DS and ASI178 25_6_20 Large Prom, Inv disc Mono by Stephen Jennette, on Flickr 25_6_20 Large Prom, Inv disc Pseudo Colour by Stephen Jennette, on Flickr Quark on Esprit 120 and ASI174 Thanks for looking.
  40. 2 points
    This is an 11 panel mosaic, shot around 9pm on the 25th with a C8 & asi178mm. Seeing was mixed especially with heat from my house roof after a 30 degree day!
  41. 2 points
    Single image, this afternoon. Shot at 500mm with the Tamron.
  42. 2 points
    I thought I’d see what a higher mag image looks like with my phone. This is at x276, amazing for a phone.
  43. 2 points
    We can do waves as well Here is ripple tank simulation of this phenomena - how waves "bend" behind edge. This is why I said above picture is not very precise technically - but to my mind - it is easier to grasp - you can't have both things at the same time - "closeness" to the edge and "direction". Much easier than trying to explain why waves bend behind edge
  44. 2 points
    Mine was the quick and dirty version really but worked so well never bothered to do it “right”.
  45. 2 points
    x5 px size is a good sampling rule of thumb for planetary imaging. Jerry Lodriguss covers the reasons for this on his website 'catching the light' http://www.astropix.com/html/i_astrop/Planetary_Imaging.html In summary it boils down to having sufficient magnification, as allowed by the seeing conditions, so that small/fine details are spread over more than one pixel. The more pixels covered by an item of detail the greater is the potential for those details to be resolved by your optical system. As a minimum you want x3 px, but in superb seeing you can probably push to x7 px, though that is unlikely to be of benefit on Saturn and Jupiter at their current low elevation as seen from the UK. With the ASI224 px at 3.75 micron then x7 puts you at ~F26, so in superb seeing you may just tease out that little bit extra, but I tend to agree that at F25 you are probably oversampled most of the time. That said, I'd definitely be wanting to try pushing up there for Mars later in the year just in case you can really nail it. C8 (F10) + ASI224 (3.75 micron) + x2 Powermate gives around F20, so that's were I'd want to be most of the time.
  46. 2 points
    Yes it is as long as we all realize that one persons take on something won't be in any way a definitive one, it';s just one "data point" as they say. That's one of the main reasons why I've stopped doing reviews now - I realised that what floats my boat is quite probably not going to do the same for others !
  47. 2 points
    I think it's only possible to make a binocular from the PST using dedicated units, it should be possible using front etalon and blocking filter sets as the spacings are not confined. I built a PST binocular years ago, the performance was excellent, I eventually went to buy a used SM60 and took the binocular for a comparison, even the seller had to admit that the binocular gave the better view.
  48. 2 points
    Eyepieces are all about trade offs I think. To achieve something outstanding in one area, something else needs to be compromised a little. The trick is to learn what you as an individual prefer and then to research and trial to find what suits you and what does not. What one person feels is excellent for them will not always find favour with another person at all.
  49. 2 points
  50. 2 points
    I’m sure you will love the Panoptic 24, @HollyHound!
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