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Showing content with the highest reputation on 14/01/21 in all areas

  1. My goal was to emphasize the foreground nature of this dark structure. Its easy to have this dust cloud appear as background sky with a little clipping of the black point, which is often mistakenly done when the data contains a lot of noise. FSQ 106 with .6x reducer and ASI 1600. This is a center crop of a wider FOV. 9 hours using SHO palette. about evenly distributed exposure times. I would like to shoot this again with more aperture and bigger sensor.
    13 points
  2. My goal was to see how many details I could capture using a 5" scope. This was when I was galaxy hunting with the TOA 130. I had unusually goof seeing for me for this shoot as I recall. 17 hours of data (9 hours RGB and 8 hours Lum). TOA 130 and ASI 1600. I regret not capturing Ha. This is a fairly aggressive Crop
    9 points
  3. This is a long way from being finished but that won’t be happening in the near future so I just went with the Ha that was acquired either side of full moon. Whilst this is far from ideal, you take what you can get . In total this is over 32 hours taken with my multi-widefield rig. Still got some teething issues so can only say this is a wip and I would like to add a lot of O111 sometime, and maybe some rgb. Thanks for looking
    8 points
  4. Althoguh I can clearly see there's something wrong with the stars(I have enlisted the help of the big brains in the help section) I wanted to share this, since it's still only my third astrophoto to date. Since I noticed the halo effect on the stars, I only did a quick and dirty edit, but star halos aside, it didn't turn out too bad. But about the halos. I focused with a bahtinov mask, rechecked focus twice throught the night and stars seems to be nice and round(and in focus as shown below) across all the individual subs. So my first thoyught was a stacking issue. I've tried stacking o
    7 points
  5. YEEEEEE goooo così. grazie molto.
    7 points
  6. Hi my fellow stargazers! The forecast was for partly cloudy skies here in Perth, I wandered outside and was pleasantly surprised the weather doctors got it wrong! Clear skies with decent seeing at 9pm. The kids were itching to get a view through my beloved 10" dob, being school holidays over here me and the Mrs obliged. We had been talking about globular clusters so naturally first target was NGC 104 aka 47 Tucanae. The kids were full of awe as they digested the sight of a million stars rolled into a tight ball. Mars was next, my daughter gasped at how bright it looked! My son wanted to
    6 points
  7. 13 January 2021 2314 hours Messier 41 Following the star maps from Sky & Telescope, I found M41 below Sirius. ES-102 mm refractor. Started with 14mm and 2X Barlow and then used 32mm X2 and 25 mmX2 and then 12x50 binoculars. Could not find it naked eye. (Bortle 6-7 sky.) Identified: Orange-yellow star in the middle of the visual field. About 25 stars easy to see and maybe another 25 fainter also in the field. FOV = 50/77.5 = 0.66 degrees = 38.6 minutes. 14 Jan 1100 hrs. I put all the equipment away and checked the write-ups online about M-41 and found that my observations align
    6 points
  8. This came today. An old model and used (it's in great condition) , but it cost less than I paid for a chinese takeaway for me, my wife and son on Saturday night! Just waiting for the connectors to arrive, so I can attach it to my scope. A cheap intro to astrophotography, that now worries me that if I get some even half-decent results, will soon become an expensive addition to this hobby!
    6 points
  9. While not the postman, the UPS fairy just dropped these off... Tomorrow promises to be a fun day.
    6 points
  10. Auntie FLO came round today with some essential shopping! Should be an interesting evening
    5 points
  11. Hey all, I would like to share my experience with some light pollution from a lamp post and how the Council were so efficient in dealing with it. We have a really bright LED lamp post behind our garden lighting up an alleyway. Regardless of looking at the stars, the light from it is excessive and floods into mine and the neighbours gardens/windows. We can view with our telescope out there but we have to shelter behind an outbuilding so that we are not in the direct beam of light. This hinders what we can look at and can be really frustrating! I thought I would chance my l
    5 points
  12. After a strange year working from home months on end, home schooling children, a family bereavement, a broken foot and finally being managed out of a job, it was rather a pleasure to watch December's conjunction - the last time I did some observing! I have finally got round to sorting out my sketches and iPhone snaps (having stupidly left my DSLR memory card in my laptop!) and made a short YouTube video: I also put more details in my seldom-updated blog : http://www.refreshingviews.com/jupiter-saturn-conjunction-december-2020/ Enjoy and stay safe!
    5 points
  13. The thought of those lucky enough to be able to observe with a 20 inch scope under really dark skies makes me go a tinge of green as well
    5 points
  14. Going through Lightroom the last few days editing various pictures from last year (clouds, snow, rain and lockdown what else is there to do). I completely forgot about the shots of the super moon taken back in April, I was hoping to image it rising behind a few village buildings but as I recall the clouds rolled in just as it was due to rise. Anyhow, I kept my camera setup and shot the following a few hours later. Canon 6D mkii & WhiteCat 51
    5 points
  15. Well it depends what you want to photograph! I'd say there are 5 kinds of filters to consider for a color camera: 1. Light pollution filters (L-Pro, IDAS LPS...) They remove some of the light pollution (usually, older kinds of street lamps, that emit light in a specific wavelength). These filters are broadband, so they only remove some of the light. The overall effects are light: contrast will increase slightly, some of the light pollution will be reduced. 2. CLS/CLS-CCD filters (many brands, they're all named CLS or CLS-CCD) These filters are stronger
    5 points
  16. This is a little oasis of decency and politeness amid a sea of internet sites awash with trolls, pompous opinionated oafs and shouty dogmatic know it alls isn't it ? I learned when I was searching for info before buying my first 'scope that if a search came up with a link to a thread here, it would always be helpful and reliable. There is a vast reservoir of knowledge here just waiting to be asked for . Having said that ... I have not a clue about zoom EPs ! Heather
    4 points
  17. Some very good points made above in favour of both fixed length and zoom eyepieces. I'm a refractor only user, so not really qualified to advise the owner of a large Dob.. but if you are a newcomer to the hobby, I do think that unless you have a large budget available to buy premium wide field eyepieces suited to large Dobs, it's worth considering a decent zoom eyepiece to compare with your fixed length units. Two nights ago, I had a session with my 5" Apo refractor for which I had prepared several optically excellent eyepieces, a Baader Genuine Ortho, a Televue T2 Nagler, and a Baa
    4 points
  18. I wouldn't worry about those small details..if you really want the original fittings, you can advertise for them on the used market, as John and Al advise above.. however, the Japanese observers only usually use "straight through" finderscopes..but here in the West we tend to use RACI (Right Angle Correct Image) finders more.. these have a 90 degree diagonal fixed into them, for more comfortable viewing, and show the image upright. I have a lovely Tak FS128, and it came with the (very nice) original finder, a 7x50mm straight through model. But I find a RACI finder more comfortable, so I s
    4 points
  19. The last DSW free download data set. TOA 150 with 16200 camera from Atacama Desert in Chile. LR(Ha)GB
    4 points
  20. In pretty grotty conditions I added 10 each of 300 s RGB TS71 16 x 1800s Ha
    4 points
  21. No, it's not normal. With that much new kit, you wouldn't normally get even the one clear night.
    4 points
  22. I managed to upgrade to a cooled camera, ASI533mc pro, just after Christmas. As expected, I’ve had nothing but cloud, rain, snow...since. Well, I exaggerate, but nowhere near enough clear sky to give the camera a proper run. The other night though I saw a bit of a zenithal gap that looked stable, so I thought let’s hit the double cluster. Amazingly I got 17 60 second subs before the clouds settled over for the night. I haven’t considered doing open clusters before but I was quite happy with the result considering and I’ll be looking at some others hopefully if the sky ever returns
    4 points
  23. I’ve seen colour when observing the blue snowball planetary nebula (NGc 7662) with a 6” SCT. I think it’s in the constellation of Andromeda so it’s still visible in the early evening sky. It was one of the first DSO’s I observed and was blown away by it.
    4 points
  24. Type it into ebay and use the filter for sold items only. But my advice would be to spend around £300 and get a decent 60D, it is one of only three Canon cameras that has a dedicated 640x480 crop mode, this is great for the moon and planets.
    4 points
  25. All the above threads are worth a read for the detail but on a personal level, I wouldn’t be without a zoom, they work really well for targets such as double stars when constantly changing ep’s can be a pain. I would recommend buying one even before you start searching fixed ep’s. Just make sure you get a decent one, the Hyperions are excellent
    4 points
  26. It's still a little rough around the edges, I plan to strip it down and tidy things and give it a polish. The garden needs a bit of a tidy up as well! The doors can be detached for easier access (and transportation), but due to their size it's a bit tricky - something I've improved with the next desgin. The aluminium panels were routed and then folded to form the shapes required, but getting two triangular doors to align perfectly required some precision. There's some flexibility in the doors that means as they meet in the middle, they bend rather than slide together perfectly, so I plan
    4 points
  27. Pausing this sale while I do some work on the mount and reconsider options. I need to rationalise my mount collection in order to progress with my plan for a home observatory. So offering my Astro Physics mounts for sale. First, a 2005 AP900. Owned by me since new. GTO CP3 electronics. Handset currently has V4.12 software. 'J' chipset in the CP3. Comes with AP Pier, about 54" high to the base of the mount. Counterweight shaft and two counterweights, one 10lbs, one 18 lbs. Power cable, mount-to-motors 'Y'-cable and a saddle plate included - mount runs on 12-16V, power
    3 points
  28. Slowly getting back into lunar imaging. Getting bits of equipment together. But no images yet. Playing with a old stack. Just for fun
    3 points
  29. There's something not quite right here...
    3 points
  30. With the weather not letting up ill need to make do with my 7x5min subs for now! This is frustrating!
    3 points
  31. Not only is it normal it is mandatory, can’t have people enjoying themselves when they get new gear
    3 points
  32. @John you can make your own like i did for around 9k sell some of your finders, sorry i mean apo,s and you will be laughing seriously, if you can transport a big dob or have a dark garden it is worth it
    3 points
  33. To mis quote William "those few, those happy few , those band of brothers with large aperture dobs " Jim
    3 points
  34. Thanks for all the responses. I’m expecting to eventually progress to astrophotography and will therefore likely also get a refractor with much smaller focal length, so I’ll bear that in mind too. I’ve understood much more now (basically you can’t increase max FOV with the reducer so no point using a reducer AND 2” diagonal/EP. Need to decide on one or the other). Probably best for all that I get the scope with provided accessories and play with it before deciding on anything else. It’s not as if the stars and planets are going anywhere. Thanks again
    3 points
  35. Launch still happening for 16:57hrs UT Blue Origin NS-14 https://www.blueorigin.com
    3 points
  36. Wow! Some great info and tips there. Thanks to all!
    3 points
  37. I've seen a lot of planetary nebula display colour but maybe that's because, to us, they appear as small points of light (generally) like a star or planet rather than large regions of nebulosity with low surface brightness like other types of nebula
    3 points
  38. I agree with John ^^^^. The pursuit of wider field in these very long focal length 'scopes is unproductive. 2032mm for the 8" SCT is about the most I would consider for that very reason. Doug.
    3 points
  39. Personally I think going down the 2 inch visual back / 2 inch diagonal / 2 inch eyepiece route is the best way to get the wider views from an SCT. The slight snag is that for the price of the diagonal and 2 inch eyepieces (and 2 inch filters) you could probably buy a nice rich field 200mm F/5 newtonian optical tube
    3 points
  40. Blue Origin NS-14 is scheduled for launch this afternoon from West Texas Slightly delayed and is scheduled for 16:57UT Live stream from 16:30hrs Well worth a watch on this cold rainy January afternoon !! https://www.blueorigin.com
    3 points
  41. The pictures you see are the result of multiple long exposure pictures stacked together in software to produce a final result, unfortunately the human eye isn’t capable of that
    3 points
  42. I'm sure someone will come up with the proper technical description, but basically, the parts of your retina that are very sensitive to low light, do not detect colour. In order to be able to see colour in an object, it must be bright enough. Children / young adults can detect colour in DSOs that we oldies can't see, either!
    3 points
  43. This is a question that comes up often, and views are split. Personally, I'm a fan of zooms for medium to high power use. I have a range of fixed focal length eyepieces, but use zooms much more often. I agree that fixed focal length eyepieces may be slightly better corrected when compared with a zoom at the same magnification. But that's not always a fair comparison as that magnification may not be the optimum for a given object. This is because one of the many advantages of a zoom is to be able to dial in precisely the best focal length. For instance, this may be 13mm or eve
    3 points
  44. After wondering where my delivery was I checked the Hermes tracking portal to find that this was delivered yesterday and left in the rain at the side of my house. No knock on the door, no notification Despite the wet cardboard sloughing off, my new flight case remained undamaged. I've been trying for a while to find a case to hold my complete imaging train (guide scope-'n'-all), but everything I found was either too short in 1 direction or excessively large and expensive. This from Maplin was reasonable at £50. From memory, the internal dimensions are about 30 x 30 x 70
    3 points
  45. I've got a 30mm RACI on mine, which suits me perfectly...I do wonder how much better a 50mm would be though. The only issue I have found with a RACI over the red dot finder, is that it's quite difficult to get your first star lined up. I've actually just fitted a Rigel Quickfind as well as the RACI. I use the Rigel to get my first star, then move to the RACI to do any hoping I need. The combination works really well. From what I've read the 25mm that comes with skywatcher scopes is ok, but the 10 isn't great. Might be worth getting something in the 7.5-10mm range (which would sit in
    3 points
  46. Thanks Robert, yes the aurora is amazing on nights when it's really alive, but it can take the edge off the faint DSOs lower down in the sky. I don't know if you've seen it, but it rarely looks like what you see in photos unless you are in a prime location, they are long exposures and really brighten things up, but when it's high up or even overhead, it's a sight to behold with the naked eye and will show intense colour when it's really booming. Thanks Epick, I managed to pick up a 20" Skywatcher dob (500p) a few years back when work was really busy and I quickly sold off some other e
    3 points
  47. That's the point I was making in my post earlier. Observing with some aperture at really low magnification and with a wide angle of view shows patterns etc that we ordinarily don't notice or can't see because we are looking through them, as it were. It's a bit like seeing aerial views of a place that we think we are familiar with
    3 points
  48. This makes me wish you'd ship it to me so i can drive there and bounce it off their foreheads,
    2 points
  49. if some is good and more is better than too much is just about right
    2 points
  50. I believe that your fov will be limited by the telescope field stop to 46/2350 x57.3deg ie to 1.12deg and that no eyepiece/reducer combo will exceed this .. It can be quite an expensive lesson to learn as I found out ! Dave
    2 points
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