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Showing content with the highest reputation on 29/05/20 in all areas

  1. 12 points
    Completely ridiculous, clear skies every night, keep giggling like a kid with candy. Tuesday night 26th May. Did a load of homework on Stellarium and the star charts (I need both) and I do the usual optimist route. Time will tell. Set up the EQ5 with the 150 pds in bright sunlight. Not a single cloud and I grab the bins and the dogs and walk to the top of the lane to observe Venus and hopefully for the second time Mercury. Venus against the bright sundown ‘amazing’ quarter illuminated disk, like a distant mimic of the moon. I had to wait till 23:00hrs till it was dark enough to do any EP work. Sat back in the chair watching space junk tumble and flash across the sky! Would make an amazing AP trail. First up M13 just to test alignment. I have spent a lot f time on this recently so for me no need to dwell. Next Glob M 92, I prefer this in the EP to M13. Appears to have a tighter brighter core. It’s outer area seems to do a similar thing to Andromeda. Focus on the core but there seems to be much more. Heading over to NGC 6210 Turtle Nebula still in Hercules. Should be beyond my mag limit of tenish. Surface brightness made me say “why not”. First look, three stars, nothing else. Hooded up and the lower star is not sharp. More an out of focus blob, with a light blue green colour. Soooo small. First for me! Then a meteor shoots through the fov, amazing. Into Draco. NGC 5985/ 5981/5982 Draco’s Trio. Absolutely nothing! I have been doing so well but the brightest at mag 12 was going to be a stretch. M102. I would normally talk about this, but I noticed in the charts a nearby edge on galaxy NGC 5907. Gob smacked, better than 102, I have that ear marked for an AP session. Into Lyra. Quite low on my horizon for the time, just after midnight. Would be rude note to look at the Ring Nebula M57. Just want to say that when I do EP sessions I use the voice recorder on my phone. Listening back to record my notes I have the following... Who ever first saw that through a scope must have wondered how there is a polo mint in space. Completely forgot NGC 6543 The Cats Eye Nebula so back to Draco. Nice Crisp Blue Ball. Larger than Turtle. Over to Cygnus. So many open clusters! I am sorry to say that I am underwhelmed by OC’s. Getting close to bed time now so a chance at the Eastern Veil. NO CHANCE, way to low to my horizon. If I could only stay out all night. Now to unfinished business. The Blinking Planetary! For a planetary a bit bigger than I was expecting. White in colour, but could not discern any blinking. Must look into that. Ended with a chancers look at M83 in Hydra. I am 103/110 of Messier’s list. Now 104/110. Very low to the horizon but no averted vision needed. Wishing you all clear skies and the opportunity that I have just had. Marvin
  2. 10 points
    A quick stack of 5 Ha 600s 1x1 subs...
  3. 9 points
    Here a different colour rendition using PixelMath in PixInsight. H > R, 0.8xH+0.2xO > G, O > B.
  4. 9 points
    I left the gear running last night thinking the sky would get worse but I have woken up to at least a good start. Hopefully I can get a few more hours in. Its about 1h ish on Ha, OIII. Ha OIII (60%) Ha (40%) OIII Ran it through PI quickly just to see what is there.
  5. 9 points
    Been playing around looking at other low targets without much success, but have opted for some test subs on M20 the Triffid Nebula.... Not sure how long the subs should be as it's a pretty bright target, so here's a 2 min red sub..... I think I'll stay at 2m, 5m will be too much and I don't have darks for anything in between......
  6. 8 points
    Here's the bi-colour HOO images. Full frame. Cropped to nebulae. Cropped to Bubble.
  7. 8 points
    NGC7008 is a planetary nebula located in Cygnus about 2800 light years distant and about 1 light year in size. The amateur astronomer Eric Honeycut named it the Fetus Nebula when he viewed it through his 22inch reflector. Planetary Nebula are one of the few astronomical objects that may appear green, so when processing this particular object you have to be careful when eliminating green from your image (eg SNCR green in PI) otherwise it will significantly change the colour balance of the object. Since it is so small and there's not much of interest in the background, I decided to crop it quite aggressively, so that a few details of the nebula can be seen more easily. So, here's an LRGB image consisting of 13 hours integration which was taken with my Esprit 150. Alan LIGHTS: L:26, R:17, G:17, B:18 x 600s, DARKS:30, BIAS:100, FLATS:40 all at -20C.
  8. 7 points
    Well not sure but i think i have got a feint OU4 can anyone else see it. This is 5 X oiii 900s and 1200s binned 2x2 ,combined from two nights Roger
  9. 7 points
    Morning all. Just checking in after a long telephone appointment with the physio, very helpful. Just processed the 3 hours [OIII] I got on the Broom last night, and added to the 3 hours previously, This is just a DDP after gradient removal and saved as JPEG. Still some gradients (Which show up more here than on the FITS) and alignment edges, but at least those are square. Think I can move on to HII now.
  10. 7 points
    Tightend up the focus a bit as I thought the stars needed reducing in size. Looked a bit large and soft.
  11. 7 points
    Im playing with my 2x Barlow and Atik 4120ex OSC on the C11. Here's a 60s sub ....not cropped!!
  12. 6 points
    Lovely evening. Got the SW 150 out for some relaxed Lunar. Had no specific targets in mind. Ended up being mesmerised by these two landscapes. The rille was a dark slash / line probably helped with tonight's phase. Had my "Discover the moon" book with me by Lacroux and Legrand. Great descriptions. Got to looking at the three amigos. Catarina, Cyrillus and Theophilus. Theophilus was epic. The central hills of the crater looking like a "fleur de lis" Was using my binoviewers with my scope. 400 plus mags. Very clear and steady night was helping. A rather nice 90 minutes. Probably another follow up tomorrow. Quick smartphone shot. Not too hot I'm afraid. John
  13. 6 points
    Saddle and puck upgrade for the AZEQ6
  14. 6 points
    That's really useful, thank you! I will follow that guide first this evening. Also completed the mini PC build having replaced the 1Tb mechanical drive which was running so hot with a 240Gb SSD. All ready for use this evening!
  15. 6 points
    Wide and in context, and a closer view. Taken with the RC8 and TS71, bothe using the QHY9 CCD
  16. 6 points
    Well, I've managed 52 minutes of the missing Red on NGC4565, which should hopefully make for a complete image. I almost feel a bit sad, as this probably marks the end of galaxy season for me. I think that this is the first time that I have ever managed to get some half decent galaxies, so that is good.
  17. 5 points
    The idea was to identify where Apollo 11 landed and it locate the tiny craters Armstrong, Collins and Aldrin but the I got carried away. I went back to this area two nights running and decided to sketch a big area. Two rimae, clear cut boundary between the dark mare region and the lighter material of the highlands, Sabine and Ritter have very rough floors with hints of terracing and circular cracks, wrinkle ridges abound, dark and light regions in the mare, sharp pointed shadows, the lighter slopes rising up from the dark flat mare, partially flooded crater (Ariadaeus E.) at the end of R. Ariadaeus, which at the far right cuts through the Silberschlag Ridge. So much going on. Mike
  18. 5 points
    Here's 15x600s 1x1 Ha on an area not to far from Sadr. I'm never quite sure what represents the Butterfly in this region whether it's the dark channel of which I've caught just a bit or wether it's the bright area in my image as that looks a bit like a butterfly. Maybe it's something else altogether.
  19. 5 points
    I got some of these in the post today. Stretchy Food Lids. Spiders kept crawling up the back of my 200P while stored in the shed. By the next day full of webs. Not anymore....
  20. 5 points
    Delivery person, not postie today. My new to me trial Pseudo Masuyama 12.5mm Celestron Ultima. Nice build quality, hope to test it tonight
  21. 5 points
    I think it's time this thread went quietly into the night. Regards Andrew
  22. 5 points
    My dad was driving home with the window open he felt a glancing blow to his head. When he got home there was a recovering pidgeon on the back seat. Regards Andrew
  23. 5 points
    Dispensed with the Moon now , just woke all ok , so back to sleep, 900s Ha3.5nm sub Roger
  24. 5 points
    Skies still lovely and clear near Dover...currently photographing the Iris Nebula NGC7023. First time I've ever seen it. Currently up to about 30 subs and they seem pretty good from what I can see on the camera screen (Canon 650D). Weather permitting I'm just going to let it run for another hour I think before getting some darks.
  25. 5 points
    Well I can't knock the guiding tonight, this was the worst its been, usually behaving around the 0.22-0.24, big dithers ruin the stats...lol: - Stars are nice and tight
  26. 4 points
    Managed a bit of time under the stars last night and got about 90 mins on the Iris Nebula. Always exciting to see something you've never seen before...even if the end result isn't techically brilliant. 45 x 120s Lights/25 x 120s Darks - SW ED80/Canon 650D on HEQ5 unguided.
  27. 4 points
    I'll publish the individual Ha and OIII stacks before process the bi-colour version. Ha OIII
  28. 4 points
    Hi guys More Mono testing I was able to nab a small amount of Oiii last week to add to the small amount of Ha i'd already captured the week before. I should be getting my very own Atik383l+ in the very near future (yay!), but for now i am still exploring the virtues of Mono imaging using the Qhy9 that Adam @tooth_dr kindly lent me. I had balance and guiding issues again this time, despite the fact id' spent a lot of time on trying to get it right. I think after 7 years it may finally be time to get the mount serviced. It has quite a lot of stiction, in both Ra and Dec, which is making getting balance an exercise in pot-luck, so i think a trip to DarkFrame for a Hypertune may be on the cards soon. After losing half the (already short) Nautical Dark that was available, i finally got the guiding working just in time to get 5 subs, all 20 mins long each. The last sub was actually shot in Civil Dark! So in total this is just 100 mins Ha and 100 mins Oiii using 20 min subs (all 2" Baader filters) using a SW 80ED. Stacked in APP and processed in PS with Starnet used for star removal. Combined as OHO due to the lack of any Sii. I tend to like my NB fairly colourful, so this may on the 'over-processed' side of things, especially due to the low amount of data. I'm still learning the ropes of mono imaging so always interested in hearing feedback. CS and stay safe folks.
  29. 4 points
    Been a long time since I had the opportunity to spend a bit of time gathering data. Native F9 with the little RC6 on my HEQ5 with an Atik 460ex for an LRGB image of around 12 hours total. 2x2 binned RGB. Multiple sessions and a lot of discarded subs due to rustiness and those pesky high clouds blowing over, but more than happy with end result. Nice to be back processing my own data.
  30. 4 points
    Been checking last night's subs. Looks like about 4h Ha and 3h 15m of OIII should be usable.
  31. 4 points
    You need to design an automated fly brush indi driven of course Gina
  32. 4 points
    I'm off to bed too - everything seems to be going alright so I'm leaving it to do its stuff while I sleep. Goodnight all and good luck.
  33. 4 points
    Perennial issues with tracking. Maybe there is an issue with EQM-35 backlash. I'm calling it for the night - by the time I would get it sorted, no real time for subs. A night of frustration. Good night and good luck and clear skies to all.
  34. 4 points
    ... and the last sub had another satellite in it too. It's probably best that I go to bed now, otherwise I could get seriously paranoid. I have to say that CCDStack seems to deal with these very well, so I doubt that any of the subs are lost.
  35. 4 points
    Well now, sorry for the low profile. Ended up on M57 doing HA. the autostretched subs in Sharpcap showing very faint signs of the lobed outer shells. I'm going to stay on it for at least another hour.
  36. 3 points
    Apologies for not responding earlier. Sales of astronomy equipment during the lockdown are at an all-time high so we are working overtime to keep up. Most will be surprised to hear it was Ian King who prompted us to stock these Japanese-made telescopes (Ian wrote the product descriptions). He has a collection of vintage long focal-ratio achromat telescopes, including the ScopeTech f15 model discussed here. It outperforms them all! He wanted to import them back when he was at 'Ian King Imaging' but had to admit they didn't fit his websites strong focus on astrophotography. When he joined FLO, importing them was one of the very first suggestions he made. It took us a while (you'd be surprised how difficult it currently is to export telescopes from Japan) but here they are, albeit in small numbers. Ian now also owns the f12.5 model Traditional telescopes like this are very niche. They do include some plastic components but they don't feel cheap and the lighter weight is welcome. Indeed anyone comparing them with Chinese-made achromats is, with respect, missing the point. The optics are very - very - well made and the views are sublime. It is not an expensive Sky-Watcher or Bresser, it is more like an affordable achromatic Takahashi. HTH, Steve
  37. 3 points
    Not brand new, but a machine with dual 6 core XEONs and 48GByte RAM. Knocks spots of the current 2014 iMac "Suit you sir" This should help PixInsight get through the processing....
  38. 3 points
    Shot on the night of the 13th/14th, here's a two panel mosaic of central Cygnus. Hiding in the dust to the left of the Butterfly is the Cygnus OB2 association, home to some of the most massive and luminous stars in the galaxy, which can be seen as a faint star cluster. If you find the small snaking nebula to the left of the Butterfly, it's above it and to the right. Stitching the two panes was a bit of a nightmare as I couldn't get the flats to apply (yet again), nor would Microsoft ICE stitch them together. In the end I aligned manually in PS and adjusted levels/curves to get a fairly close match on the second pane. Each pane is 26x2 minutes with the Samyang 135mm, modded canon 100D and clip-in Ha filter. This combination gives just enough resolution to make out the pillar in the head of the Pelican but not enough to do it justice. I also shot these two panes in colour the same night but I'm not confident they will match up that well. Here's a wider but shallower view of the same area, which was made by stitching together 2 minute exposures in ICE.
  39. 3 points
    ZWO will soon release a new full-frame camera The ZWO ASI 2400MC Pro will use Sony's latest back-illuminated IMX410 full frame sensor with 5.94um pixels that provide a well depth of 100ke. Essentially it is a large format camera with slightly larger pixels than the ASI 6200, making it more suitable for use with medium to longer focal length telescopes. It will also work very well with shorter focal lengths. It does have an impressive specification. Main specifications Bayer Pattern: Gb B R Gr Sensor: Sony-IMX410 Size: 36x24mm (full-frame) Pixel size: 5.94 Shutter: Rolling Resolution: 6072 x 4042 Spectral range: 200~1000nm Read Noise: 1.1-6.4 e QE: TBD MAX FPS: 8fps ADC: 14bit The price hasn't been announced but we are predicting < £4k We don't have a release date but ZWO say this new camera has "entered the final development stage" so we think it is close...
  40. 3 points
    I'm not sure which version I like the most as they are both fantastic. Veering towards the PixelMath version but I do like the other one too. Call it a draw.
  41. 3 points
    That's interesting, but what we need from ZWO are more MONO cameras, OSC is of very limited utility. ATM there's a big gap between the low-end, small sensor and compromised 183 and 1600 and the eye watering 6200 with its huge data sets.
  42. 3 points
    Collected the T-20 OIII 900s unbinned darks together and stacked them, saving as a master dark. Now I can calibrate that exposure OIII Bubble lights. Now going to collect all the Bubble data together and do a mass process. Looking clear tonight but the moon is bigger and higher - probably see how it goes.
  43. 3 points
    You guys are brave/organised going to bed and leaving the rig running. I have done it for 1 - 1/2 hours if there is no chance of rain, but I always worry about scope/camera clash with pier, since I don't automate very much. Carole
  44. 3 points
    I just sent the follow email alert to BAA members about this dwarf nova in outburst. Note this is a rare event and presents a real challenge due to the location of this star in the sky: "The dwarf nova PQ And has been reported to be in outburst at mag 10.5 on May 28.776 by Kenji Hirosawa (Aichi, Japan). This means that it is some 9 magnitudes above its usual quiescence of 19.5. PQ And has only been seen in outburst once before when Dave McAdam discovered it as Nova And 1988. So this is its first appearance for 32 years. Gary Poyner managed to catch PQ And in the dawn sky this morning: May 29.088 at a visual mag of 10.5 using a 22cm Dobsonian on a wobbly table. Eddy Muyllaert of Belgium also observed it visually this morning at mag 10.3, May 29.080. All observations of this rare outburst are urgently required, both visual and CCD. Time resolved CCD photometry would also be very helpful. It’s of course tricky to observed given the location in the dawn sky. Dwarf novae are compact binary stars and as they evolve their orbital period gets shorter until it reaches a minimum around 75 to 80 minutes. The orbital period of PQ And is 80.6 mins. There is some speculation that this might be a rare example of a “period bouncer” in which the system has evolved through the minimum and is increasing. PQ And is located at RA 02 29 29.55 Dec +40 02 40.0 (J2000.0). A finder chart is available from the AAVSO website Do try to observe this very rare event. At 10th mag it is visible in a small telescope. You might have to wait 32 years for the next one!"
  45. 3 points
    Are we all not star dust? Regards Andrew.
  46. 3 points
    There are pictures on the internet of the injury the poor woman sustained. There are also reports of a meteor hitting a Chinese city in 1490 and killing thousands, probably an air-burst. Historians generally believe the accounts to be reliable but cast doubt on the actual death toll. "Stones fell like rain in the Ch’ing-yang district. The larger ones were 4 to 5 catties (about 1.5 kg), and the smaller ones were 2 to 3 catties (about 1 kg). Numerous stones rained in Ch'ing-yang. Their sizes were all different. The larger ones were like goose's eggs and the smaller ones were like water-chestnuts. More than 10,000 people were struck dead. All of the people in the city fled to other places." Interesting anecdote but I'm not completely convinced that pigeons are of extraterrestrial origin.
  47. 3 points
    Well I managed to get some data last night, it definitely needs more...and a bit more love in processing but a huge improvement in terms of colour.
  48. 3 points
    Goodnight all, and happy imaging.
  49. 3 points
    Ive uped the subs to 2mins I think it looks better....we will see.
  50. 3 points
    This is 100m OIII Sadr to the Crescent. To the right of this image (half way to the Tulip - and a bit lower) there is an interesting OIII structure that is considered to be a bit elusive, but nowhere as difficult as the Squid.
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