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Showing content with the highest reputation on 02/03/21 in Posts

  1. I bought myself a Takahashi FC-76 DCU from FLO on Thursday night. I’d been obsessing about a Tak for a while, especially since reading the recommendations by @DirkSteele and@JeremyS. It arrived today, and I can’t even articulate how excited I was when I saw the box, opened the ‘box origami’ and finally beheld the magic within. The Certificate of Inspection with the autographs of Mr Takahashi and colleagues was the icing on the cake! I’m planning on using this as an ultra portable setup for travel, and putting it on my Giro Ercole mini with a (yet to be purchased) lightweight tripod. Q
    8 points
  2. The Horsehead Nebula and Flame Nebula (Barnard 33 and NGC2024) - 7 hours of Ha data gathered on 12th Feb. and 40 mins each of RGB binned 2x2 under terrible conditions - (full moon and wispy high cloud) on 1st March. Nearly didn't bother processing it but the quality of the HA data hides the poor quality of the RGB.
    8 points
  3. The missing gap in my Pentax XW set is finally filled... XW5 arrived today... quickly as always from @FLO
    8 points
  4. Did I mention that I have been under lots of cloud for the past week or more? Did I mention that it looks like cloudy weather will continue for another week - or more? What to do! Pulled out some data from last year and started working on it again - with some new processing ideas. Just a test - that I think worked out OK. (I do hope you can view this on a larger screen). This was 16 hours total Ha, SII & OIII data with FSQ 130ED and FLI ML16200 camera.....January 2020. (For Info: This is not exactly an SHO image; I generally mix them in some proportion other than 1:1:1 to RGB. I also
    8 points
  5. Thanks David! That star (Gamma Cas) was a real challenge wasn't it?! I'll try and show below how i went about adding in the 'lesser-stretched Ha stars' because this stage alone made a huge difference. From then on, it was just a case of making smaller adjustments. Unfortunately this will all be done in PS (i know you use P.I) but pretty much anything that can be done in one program can be done in another (once you work out how) so hopefully it will still be of some use to you. I'll try and keep the waffling to a minimum, so here goes: 1. Save 2 versions of the Ha stack using your fav
    8 points
  6. This data set has been sitting on my hard drive since last summer, waiting for the right moment... well that moment finally arrived. Here is my image of The Iris Nebula (NGC 7023): While gathering the data I noticed that loads of subs were photo-bombed by space hardware. I thought it would be interesting to do a stack that didn't remove any of the trails and here is the result. Yikes! I haven't counted how many there are, but it seems to be hundreds... The image comprises 3 hours in each of R, G & B, along with 13 hours of Luminance. A total integration time of
    8 points
  7. 6.45pm Monday – clear, still, cold. Using 8SE for a change – aiming for a subarcsecond double, and manual tracking is difficult at high magnification. Aligned on Aldebaran. Started in each case with x48/1.34deg. OΣ95 (STT95) – 7th mag, 0.9” separation. GoTo spot on. Only a faint pair above. x203, x303 – less sharp – needed a tad more mag – x339 – Bingo! – well matched pair, very close, sec at 4 o’clock – focus critical – great result, for separation of 0.9”. The following two are less than 0.5deg apart: Σ674 (STF674) also CD Tau – 6th & 9th mag, 9.9”, (2)+1, status
    5 points
  8. hi just a single image of 15mins on ha
    5 points
  9. Just a diagonal for me. Well, a Baader Zeiss prism (BBHS) T-2 diagonal body which I'll be using in all my refractors from now on. It arrived with mist as well as clouds! Ant
    5 points
  10. Just a very quick single sub I took tonight with my Canon 450d and younogo 50mm prime lens 1600iso 30 secs 3.5f, only took this one as I was setting up my dslr to image Orion and I caught this out the corner of my eye whilst framing Orion. Not the best ever but I'm happy with it for a quick point and shoot. Unprocessed.
    5 points
  11. Hi, just got to image even with the moon out. M82 the Cigar Galaxy imaged the evenings of the 25th & 26th FEB. Just over 11hrs image time, [nearly daylight to my thinking]. Filters used Optlong L-eXtreem and Baader Neodymium & IR-Cut Moon & Skyglow. 141 x 180s..51 x 300s Scope OOUK ODK12. f6-8
    5 points
  12. Just arrived today with guaranteed clear skies. Baader ND1.8 for my hershal wedge instead of the ND3 that was installed. Will only be for imaging and give higher frame rate captures. Thanks FLO.
    5 points
  13. And this all arrived today, also from @FLO Rowan AZ100 mount, 2x Dual Saddles, Tilt/Pan Handle, DSC tray and Counterweight Bar and direct from Rowan... an EQ5 tripod adaptor Not setup yet, but this mount head feels so well engineered and smooth in operation
    4 points
  14. As a retailer (nothing to do with astro) we are facing two issues - UK (non) supply chain - take International Paints for example - spring time - people ready to get their boats sorted out for the season - International have virtually nothing on their shelves - many of the workforce were furloughed and therefore not making paints - how can they or we trade our way out of this mess if nobody has any stock of anything??? Secondly - stuff that comes from outside the UK - aside from China a lot of boaty stuff comes from Sweden, Germany, Italy and Greece - the few that will still ship to the UK hav
    4 points
  15. There are two faint stars near Sirius that I've found quite important to being able to have a chance to see the Pup star itself. I have circled them in my sketch below (refractor view). One is the one that @Nik271 refers to in his post above. If you can see these two, you have a shout at seeing the Pup star, when the glare of Sirius A is at a minimum. Over the years I have tried filters, using the field stop edge and occulting bars but eventually it was just looking carefully under the better seeing conditions using a magnification that gave a decent image scale (250x or thereabouts seems
    4 points
  16. I spend a pleasant evening on Saturday on a skype call, sharing the moon through my C8 / asi178mm and ended up taking a mosaic, because 'why not?'. 49 panels later, and we have this monster! Click through for the full view
    4 points
  17. Hi everyone, It looks like most of the UK got some clear skies this weekend, even though it was around a full moon I was still glad to get out and at least have a go! - I hope you all got the chance to get out too It gave me the opportunity to try and make a video also which I've been enjoying doing recently I imaged for two full nights, dusk til' dawn, and in the end captured 104x2m subs on M42, and 300x2m subs on M51. - very tiring! I'd made a mistake on night 1 and accidentally recorded that night's data all at 300 gain! - I noticed on night 2 and put it
    4 points
  18. Finally had a clear few hours this evening after a very clear day. This gave me a chance to see what difference I'd made to my scope & mount. The SW Evostar 100ED Pro had the focuser tuned (taken apart, cleaned, the flat on the focuser tube ground flat, assembled and adjusted). The SW EQ5 mount had the same treatment over the weekend with a full strip, clean, new bearings, re-grease and assembled again. The focuser performed very well, it use to change focus as I tightened the locking screw because of slack. Tonight is took five adjustment to get focus! The jury is still ou
    4 points
  19. One from back in January when I was shooting the Rosette. Caught the ISS shooting for the Moon too!
    4 points
  20. Hi, I'm still plugging away at Mars . This will probably be the last one (but I keep saying this!). I used my Meade 2080, Zwo asi224mc, Baader UV-IR cut filter and a 2x Barlow. 5000 frames, best 15% used. The main features are (from left) the dark Mare Cimmerium, the brighter cut of Hesperia Planum and Syrtis Minor. Clear skies Peter
    3 points
  21. Dont know how often this happens ( new to astronomy) that Mars and M45 can be captured in the same field of view ...... so thought I would give it a go. . CC always welcome.
    3 points
  22. I have the 2”. Pretty much the same. They are excellent.
    3 points
  23. That DL in the shadows is almost an erotic tease. Perhaps im revealing too much about myself and my love of Takahashi!
    3 points
  24. I'm not sure if high prices are here to stay. Once things get back into normal - there will be plenty of second hand items and demand will go down. This will force prices to go down as well. I remember HDD prices skyrocketing after floods in Taiwan that put several factories out of work. That created temporary raise in prices - but things got back to normal after a year or two: (2009 - 2017 HDD prices per GB)
    3 points
  25. These sketches of field stars in the field of view are actually quite useful to get an idea of where to look for the pup. I noticed during my last attempts that I wasn't really sure where to look relative to the drifting Sirius A in the field. I guess that knowing exactly where to look greatly improves the chances of detecting B. So: thanks all!
    3 points
  26. Ah, reminds me of the epic tale of the great duck flotilla of 1992 ! https://www.iflscience.com/environment/28000-rubber-ducks-accidentally-embarked-on-an-epic-ocean-current-study-in-1992/
    3 points
  27. My first successful image! (Thanks everyone for the pointers). Mars and M45, from my back garden - best not mention the 150 subs I dropped because the roof of the house was in them. Canon 70D on an EQ3-2, 50mm f1.8 (stopped down to f2), 142 x 6" subs. Processed in The GIMP.
    3 points
  28. Hi again everyone! I took the opportunity to get out on the last night of February as the skies promised to be clear (a promise not quite kept!) My target of choice was the Cone and Foxfur nebulae in Monoceros - I wanted to shoot something that allowed me to use my L-Extreme filter in an effort to beat the strong moonlight somewhat which that filter seems to do excellently Image capture went quite smoothly, the only things that went wrong were things out of my control - the weather! - as the night progressed the air thickened to the point where it almost felt wet
    3 points
  29. Thanks Danny. I recommend the Cambridge Double Star Atlas, or Sissy Haas's Double Stars For Small Telescopes. Meanwhile, could you view Ursa Major in the east? Try the well-known Mizar/Alcor double there. Also: Sigma 1258 - matched, 7th mag, 10" separation, SAO 042512 Sigma 1315 - matched, 7th mag, 25", SAO 014808 Sigma 1349 - one fainter, 19", SAO 014903 Sigma 1561 - fairly bright primary, 9.1", SAO 043841 Sigma 1559 - mismatched, just 2" sepn, SAO 015580 - this requires more mag, something in the region of x150. Happy hunting! Doug. Thanks Chri
    3 points
  30. The fireball is now listed there where 41 reported sightings but only one photo, the one captured by me on the makeshift camera setup. logged as Event 1185-2021 on UKMON
    3 points
  31. Hi all, I wondered if you could help me with a very easy identification - see my right-side up drawing (same as binoculars) below. I'm pretty sure this is the Hyades in Taurus as it's right next to Alderaan. Looks like a bull's head to me too. But it looks nothing like the star charts or proper photos of Hyades. It's massively distinctive from my location, can spot it easily with binoculars, so it'd be good to properly identify it. Looks nothing like this... obviously this is a decent astrophotography image so there are a lot more stars, but i thought i'd be a
    3 points
  32. The separation is 11 arc seconds. You can use the separation between Rigel A and B as a rough guide to the "scale" in the eyepiece - the separation there is 9.7 arc seconds but Rigel B is on the other side. The glare from Sirius usually extends around 10 arc seconds or more around the star, so Sirius B has to shine (well, glimmer) though that.
    3 points
  33. There is a lovely video clip of it crossing Orion on the BBC web site - starts about 13 s in . https://www.bbc.co.uk/news/science-environment-56241511 Jim
    3 points
  34. I have an allsky camera that's on a long term test looking out of a north facing window that looks like it caught it from near Southampton. Image was a 30 second image, so sub started at 21:54:55, ended at 21:55:25 Also managed to get it on a CCTV camera pointing at the northern sky. Meteor 28-02-21.mp4
    3 points
  35. Alright, so a very limited dataset (bit of a theme of mine lately as I go hunting for new targets - I think this one's going to get some more hours) - total about 59x120s for a total of about 2 hours imaging time on my 200P/183MM-Pro/EQ6-R setup, mostly shot over warm rooves and relatively low down. Processed with PI; the usual manual processing steps I do (cal, cosmetic fix, subframe selection, alignment, stacking, crop, DBE, linear fitting, channel combination), but I used R/B/L as a superluminance given the small dataset (green was unfortunately badly focused so ignored it). DBE'd a se
    3 points
  36. I have too many hobbies and suffer too badly from depression to do many things regularly and given the focus for me over the last few months is to get fit and lose a load of weight many other hobbies have taken a back seat. However, given what a glorious afternoon it was yesterday here in Sheffield I thought I would chance setting the scope up for some lunar obs and tackle a few other jobs I've had on the to do list as well. First up was updating Astroberry and checking I could remember how to use it all. That went without a hitch and after a bit of faffing with IP addresses etc I had m
    3 points
  37. and a not so crazy version with the 80ED, in RGB
    3 points
  38. Go on press that button you won't regret it, once you've bought the FS-60CB you can invest in a CQ 1.7x Extender then you have an FS-60Q......only trying to help
    2 points
  39. I know what my lifetime scope would be... because I recently bought it... DL in the dark.
    2 points
  40. @Stu1smartcookie I think that market is self regulating entity. We can certainly talk about the reason for price increase or decrease and we can even express our like or dislike of the state of affairs. Ultimately - we, who pay for the items are in part responsible for prices. If something is too expensive in your view - then there is really simple course of action for you. You can either: a) purchase same/similar item from competition (be that retailer or vendor) b) accept that something has realistic price if all competitors offer item at that price or - get into the game
    2 points
  41. Exactly my experience from yesterday . I was using a low power of 96× with my dob .. it was quite a bit windy so my tube would vibrate few seconds and Sirius becomes a blur . The focus was highly critical - it was the difference between a star Sirius and planet Sirius. I first split Rigel with same 96× so I went ahead for Sirius . LOL my imagination made my eye see Sirius B all over the circumference of Sirius A . But Rigel B was surely there at 96× . Sirius B was a bit of rebel but will try higher mag when conditions allow . @Kon As you are using a dob without tracking , allow Sirius t
    2 points
  42. I somehow got there with the editing, still not fully sure how but I'm learning. So here it is, the first light with my QHY9 mono, 4hrs of HA during two nights of moon lit sky's . Stacked in DSS with flats, darks and dark flats and it would appear that my calibrations frames have worked, they took me all day yesterday to do so I'm really pleased. This hobby tests you and yet it still shows you that its all worth it, this is when you feel embarrassed when you throw a wobbly because of a rubbish night but hey they are going to happen from time to time. I'm now very settled in what I'm
    2 points
  43. Here I have combined RASA 8 data from the other night on the tadpoles (IC410), spider (IC417) and fly nebula (NGC1931) with RASA 8 data on the tadpoles from November 2020. All under a moon lit sky so I used the NBX filter. Clearly there is a lot of Ha nebulosity in this region. The recent data (64 x 5 min) was collected 26-27 Feb and mixed with 27 Nov data (83 x 2 min). All with the RASA8 and ASI2600MC and IDAS NBX (Oiii Ha) filter. So totally 8.1 hours stacked in PI and processed in PS and PI. By the way I never understood how NGC1931 could be seen as a fly; maybe it has to do with
    2 points
  44. what did the postman bring? does this include DPD, Got my nice QHY polemaster from First light optics .Arrived Tuesday, wanted to try it before posting this, and yes it is as good as the reviews suggest, thanks to FLO for quick dispatch and easy ordering, Much happy person in Essex,
    2 points
  45. Congratulations on your new scope @Nicola Fletcher. It’s a Beauty. I use a standard Vixen style dovetail on mine. The Tak dovetail bar is fractionally narrower and for some reason too narrow for my ADM. It’s fine for the clamps on all my other scopes tho.
    2 points
  46. Thank you! Yes, every bit of it is amazing, I just keep thinking of the people that make these scopes with such precision and attention to detail. Can’t believe how lucky I am
    2 points
  47. It was the first fully clear evening in what seemed like weeks so I had the opportunity to try my new asi224mc on Mars. It was bitterly cold so I only took a couple of videos but managed to get some detail. Equipment: Celestron 6SE, Zwo asi224mc, Baader UV IR cut filter, 2x Barlow. c.3000 frames, best 15% used. Sharpcap, Pipp, Registax6
    2 points
  48. These 5 inch refractors are mouthwatering Here is another in action at night but, alas, it's not mine. This is Sir Patrick Moore's 5 inch Cooke refractor. A scope which I found instantly appealing the moment I saw my first photo of it many years ago: The influence that the above scope had on me has undoubtedly led to the TMB/LZOS 130 that I currently own, below on a GP DX mount. The closest I've come to owning something like Sir Patrick's Cooke. The GP DX was right at it's limit with this F/9.2 refractor:
    2 points
  49. The sub length question has been re-answered by CMOS cameras which work well with short subs. High read-noise CCDs do not. CCDs do, from experience rather than theory, benefit from long subs. Plenty of CMOS imagers are finding 300secs at unity gain to be effective. In the end the key number is the total integration time and even with the fastest setup known to man you will be scratching the surface with half an hour per filter. The fastest setup currently appearing regularly on SGL is probably Gorann's RASA 8 and CMOS rig. Check out his posts and integration times. Noise increases as the
    2 points
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