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Showing content with the highest reputation on 12/02/20 in all areas

  1. M1 - The Crab Nebula Introduction The Crab Nebula in the constellation of Taurus is a supernova remnant (designated SN 1054) from a star that went supernova in 1054 and was originally observed by Chinese astronomers who recorded the event in some detail, describing it as a ‘guest star’. Their records show that the star shone approximately four times brighter than the planet Venus and was visible during daylight hours for 23 days. The nebula wasn't officially recorded until 1731 when it was observed by the English astronomer John Bevis and added to the Messier catalogue in 1758.
    19 points
  2. Taken almost exactly one year ago, but as usual never had the time to work on it properly until some days ago. During processing I realised that there was no reason to go after excessive detail when imaging wide field. So I sacrificed details for the sake of richer color variations, which took the longest time of the processing, (Over 20 hours) I believe keeping great detail and rich color at the same time, is something that is very difficult to achieve. Perhaps it is possible in the future with the my new Newtonian and as processing technics progresses. This was 7.2 hours, with
    11 points
  3. Toscano 200 RC uv/ir/ir 180 fps 20% of 20000
    11 points
  4. Hi folks, just been looking at m42 from costa rica through some bins. Never seen it so high, right on the zenith. Very strange. Nice though in 22 degrees
    11 points
  5. After battling the wind i managed to get some decent data last night. All taken with the evolution 925, all best 20% of 1k and processed in photoshop. First up, a few with the 385c with a baader neodymium at F/10 And a few with the 294mc pro, 4 panel mosaic is F/10 and the others are with a 2.5x barlow.
    8 points
  6. Just landed. Quick few photos for now. Can confirm was packed to within an inch of its life. slywatcher have learned their lesson with the poor earlier attempts. Initial thoughts are weight wise, it does not seem all that more than the Meade 5000 127 apo I recently passed on. It is however weighted towards the business end. Lol Delivered to my parents house. Need to get home shortly and start playing with it. Queue the clouds now. Hey ho
    8 points
  7. All the way from Sweden and deposited on my door step by the courier three days earlier than expected - As it was palleted and weighed almost 70kg, it was left out in the rain until I got home from work! The box was a little soggy, but it was well packed and wrapped in polythene, so no problems (other than a long explanation to my wife) - Fair to say it is a bit of a beast and I shall look forward to hoovering up some stray photons once I can get it mounted and balanced in my obs.
    7 points
  8. Further to my recent efforts to image Venus with a UV filter, I decided to splash out and get a ZWO ASI 290MM Mini. With its super-sensitive sensor and high frame-rate I thought it was better suited to the UV filter, and so it has proved to be. I think I was lucky to get hold of this camera. With China shutting down at the moment with THE BUG, supplies of ZWO cameras and similar items seem to have run out here in the UK. As I lamented previously, my other cameras could only manage exposures of around 1/4 second (250ms) with this filter. Not sufficient to capture the seeing. However, this
    7 points
  9. Just a simple mono shot of Venus this evening - ED120APO, 2.5x Powermate, ASI120mm camera, 200/5000 frames taken. Image 1.5x actual.
    5 points
  10. I took this one last January. I totally forgot to post it! It's 22 mins each of RGB and 100mins Ha. 200PDS on EQ6-R and ASI1600mm-pro. My Ha filter can deliver some pretty substantial halos!
    5 points
  11. I like pushing my small 61mm scope to the limit. It always gives me great pleasure when I can achieve this. Great thread by the way. Glen.
    5 points
  12. Interesting choice of name from WO. Is it "Mortar" because your OTA will feel as solid as if it had been set in concrete? Or because you can use it as a projectile weapon? James
    5 points
  13. Here's my first printed framed picture of last year's partial lunar eclipse. Pleased the way it's come out and looks brilliant on the wall.
    4 points
  14. Venus in reasonable conditions from the 12.02.2020. Captured with Celestron C9.25, baader UV filter and Asi 290mm camera. Stacked 10% of 25,000 frames. Some decent cloud visible again, fascinating to see the difference in tonight's images compared to this years other images. The disc almost looked blank on the Firecapture preview screen.
    4 points
  15. Hi everyone Full moon, so keep the dslr well away. This was using the mysteriously named Moon and Skyglow filter. All it seems to do is make everything blue, so had a struggle to make everything not blue. Learned a few more curves tricks along the way so maybe it was worth it. Thanks for looking and do post your full moon shots. 700d @ ISO800
    4 points
  16. Few moon pics with the smartphone tonight and the StellaMira..
    4 points
  17. Only 5 (!) subjects for me last year. All with the SW MN190 and ZWO ASI174MM-Cool. Not always as much data as I would like. ngc 2683 ngc 4565 Arp 217 (ngc 3310) M106 M63
    4 points
  18. This is why I never throw away data that, at the time, I think it's good for nothing. I revisited my Deer Lick and Stephan's quintet to see how much better my processing skills are after one and a half years. Here's tonight's attempt And my previous attempt: It wasn't very easy to get to this result but I'm really glad I managed to do it properly this time. Here's how the pixinsight autostretch looks like. The 450d banding is absolutely terrible. Full resolution and other details on my astrobin account: https://www.astrobin.com/ncv0wn/0/
    3 points
  19. 2020-02-11 Playing hide and seek with the clouds this evening. I started to look at the two lonely craters Messier and WH Pickering where the impact debris from Messier washed either side of the older WH Pickering crater. A band of clouds came over so I went inside for a cuppa, expecting to clear up afterwards. Fell asleep in the chair and woke up an hour later to a lovely clearing sky. Struck by the strangeness of the Rheita Valley I reached for the sketch pad and started again. So much detail, I was wondering if I had bitten off a bit too much and this took me much longer than expected
    3 points
  20. When I powered up my observatory a couple of weeks ago, I was horrified to find that my trusty six-year old Atik 460ex mono was completely unresponsive - no fan noise, no connection to the PC - nothing. The follow day, after a quick email and telephone exchange, I posted the camera off to Atik . I was pleasantly surprised by the cost of postage (£11.70 Royal Mail Special Delivery by 1PM with £2.5k insurance). Andrew at Atik emailed the next day to let me know that the camera had arrived safely and to apologise that the repair would take longer than usual because they're doing some bu
    3 points
  21. Some recent pictures of mine, all Skywatcher 150p on eq3-2 with enhanced dual motors canon 1100d. Tracking the progress of Comet PanSTARRS.
    3 points
  22. ...and FWIW, here's the photometric colour corrected version, complete with milky background...
    3 points
  23. This is a probably a microlensing artifact for which many of the present CMOS cameras are well known. Alnitak itself is very good and sweetly split. There is no clean (some would say 'ethical') way to repair this but if you learn Photoshop's arsenal of brushes you can get it to look like this: You might well prefer the honest artifact, though this was done with just a screen grab and could look better if done with a TIFF. I made a copy layer and initially worked on the bottom, using Curves to get the diamond-shaped artifact flattened out into a uniform brightness. I used the eraser
    3 points
  24. By the way...just a thought.. This hobby is RIDICULOUS!! I might as well take a short trip to the bank, and withdraw all my money and set it alight!! When will the spending end...???
    3 points
  25. Contacted Barbara at W&W, and unfortunately the 20cm & 40cm sizes are out of stock. Barbara recommended I check Tim's website. It seems the straps offered by W&W and Tim are identical. Anyways, ordered the 4 way controller and a 40cm strap. 20cm is also out of stock! Thanks for all the advice I received. Best regards Ossi
    3 points
  26. I use LowSpec spectrometer in the (mostly) remotely controlled roll-off shed and also I plan to use 1800 lpmm grating, so I decided to automate the device. The automation covers such functions: moving Relco starter in and out of optical train adjusting grating angle adjusting focus switching on/off Relco starter regulating 0-100% slit LED iluminator perform all the tasks above from the dedicated small software The components that were used: three small 12V BYJ28 stepper motors with integrated gear box Arduino Nano two ULN2803 universal
    3 points
  27. Last evening it was clear and I had no plan.....Last minute decision....go for the HorseHead. (It had to be Ha as I knew a bright moon would be up later). I got a few hours in and just stacked the subs. I have not even got any calibration frames as yet - time enough doing them this evening. However - I just thought a crop from the stack looked interesting enough to post as a mono image......The Flame Nebula:
    3 points
  28. A close up of the open star cluster IC1848 which is embedded within the Soul Nebula (Westerhout 5). The LRGB image below, represents just over 21 hours integration time and was taken with my Esprit 150. To capture the detail of the emission nebula, I gave it an Ha blend into both the Lum and Red channels. Alan LIGHTS: L: 24, R: 17, G:20, B:11 x 600s, H: 19 x 1800s. DARKS:30, BIAS:100, FLATS:40 all at -20C.
    3 points
  29. I may be pushing the limits of the theme with this image. I’m justifying it on the grounds that transits are themselves a demonstration of celestial motion. The Jet adds a sense of motion, although not celestial. Finally, I rarely have anything worth submitting to the imaging challenge so didn’t want to miss this opportunity Photo taken with a SkyWatcher Equinox 80, TS Optics Herschel Wedge, 9mm Baader Genuine Ortho and iPhone 8. A very lucky shot taken from my back garden. The image is the moment as I caught it. Only processing is adjustments to exposure and contrast levels using
    2 points
  30. Wednesday Oct 30th. 58N, Achnahaird, NW Highlands, Scotland. Canon 6D MkII, Samyang 14mm. VSDC editor. Music - Storm Horizon by Lee Rosevere. Best in darkened room with the volume up...
    2 points
  31. A big part of the appeal of astronomy for me is the challenge. I thinks that’s why I love deep sky observing the most. Trying to see fainter and fainter objects. However, when the moon is bright or a dark site trip isn’t possible, I have to find challenges in different ways. This evening it’s clear with a near full moon but it’s very windy outside. I set my 80mm refractor up in my front bay window for a quick look at the moon. I spotted Arcturus and wondered if I could see M3. Under normal circumstances M3 is an easy spot. Tonight I had to carefully star hop my way there and then slowly i
    2 points
  32. A couple of craters with my 180 Mak/ASI220 mono from last week. Still learning! Chris
    2 points
  33. Hi, A few lunar images below that I shot on the evening of 4th February 2020. All images taken using my ZWOASI178MC camera, via my Intes-Micro MN56 Mak Newt telescope. Resulting AVI's stacked and processed through Autostakkert, and then refined and adjusted, using a combination of GIMP and Affinity Photo. Regards, Steve
    2 points
  34. Short update - I've started work to improve the cabling, to allow me to put my laptop in the warm room, instead of the scope room where it's vulnerable to condensation (and I'm vulnerable to the cold!). With difficulty, I've re-routed the power cable from the warm room through the narrower conduit running up the outside of the pier, now wishing I'd used a wider pipe, but at least it's done. I've also run a new 5m active USB 3 cable from the warm room through the conduit running up the inside of the pier. I've got a powered StarTech hub which I'll fit to the outside of the pier. At th
    2 points
  35. Just picked these up, Meade 8.8mm smooth side uwa, in perfect condition, always wanted one of these and a 6.3 reducer......not the best photo but..
    2 points
  36. Finally an update on the computer front.. 8th gen i7, ssd drive, 8gb ram.. should speed up the processing, relevant to the old Celeron core 2gb ram thing in the corner!
    2 points
  37. I'd terminate with a ring, solder it if you can, an anti-shake type washer between it and the surface you want to earth and then vasoline/silicone grease to protect it from moisture. Steel+aluminiun+copper will get you corrosion over time in damp environmetns, condensation may well induce it so worth protecting against. Also if the Aluminium/metal parts you are earthing are not directly coupled to each other, add a short earth strap between each of them if you want it all earth bonded. If you want to on-link to the PSU as well then you can get metal connector blocks for earthing so y
    2 points
  38. A bigger scope wont mean you will see thing alot bigger, what you will see, is more detail
    2 points
  39. Indeed it is, now going ahhh, dats wot it iz!.
    2 points
  40. Hermes person has been and gone. I now have a used riser to join the one I cut down to 9" a few years ago, so have flexibility with mount heights. Thanks @Grumpy Martian.
    2 points
  41. The main issue is to tune the etalon and get focus just right for optimal contrast. Once you have got that right, grab 1000 frames at such an exposure time that you fill the histogram well, without saturation. Using a white plastic bag or a few layers of cling film over the scope allows you to take flats, to correct for uneven illumination and dust bunnies. Did you have a look at the tutorials yet? These should provide a good starting point.
    2 points
  42. Ah, just fast forwarded Sky Safari. Probably Jupiter, it was hiding behind a virtual tree!. Never mind!
    2 points
  43. It gets worse. I originally came here to buy a Dobsonian (~£200) to rediscover my love for astronomy. A few months later, I had spent close to £2k and now considering building a mini observatory to house my gear.... Or maybe go mono route.... Or how about dual rig? Considering how much it rains here, how cold winters can be and how much light pollution we have in most locations, you would think this would be a dead hobby but I am loving it. Every image I capture still gives me a wow factor!
    2 points
  44. I may have a wonder over to this be one of my first meets. Got a skywatcher 150pds with a few mods on a modded EQ5 mount. Be nice to see folk and get some advice, every days a learning day especially with this stuff!
    2 points
  45. I don't know if I said this before, but I find that I use powers between 75x and 100x the most often, so plan your purchases accordingly. 22 years ago, I started out with a 38mm Rini 2", a 14mm Pentax XL, a 9mm Vixen LV, and a 5.2mm Pentax XL. I used the 14mm the most by far in my 8" Dob and only recently replaced it with 14mm Morpheus.
    2 points
  46. I couldn't resist popping in the UHC and OIII filters tonight and having a quick scan before the moon rose too much. The nebula in M42 was greatly enhanced and frankly pretty impressive. I was fighting high cloud, so came back in for a bit. When it cleared, I swapped to Hb and OIII combo and went for NGC1499, California Nebula. Hopping up from the Pleiades, I located the approximate area, but by this time, the moon had lit up the sky a great deal... I really can't wait to get out to any dark sky sites with the Apollos and some filters in my pocket. And maybe a dob in the van of course. DS
    2 points
  47. Five images from 2019. All taken with my Esprit 150 in combination with a Trius 814. Alan M76 NGC1333 NGC3344 NGC4157 NGC6995
    2 points
  48. I’ve just bought a controller and 20cm strap from here. Both excellent and very good service.
    2 points
  49. Here's some of mine... .. and thanks to @ollypenriceI get six! M101 and friends... LHaRGB Esprit150/SX46, Mesu200 Crescent Nebula and Soap Bubble Ha_R_Oiii_G_OiiiB Esprit150/SX46, Esprit100/ASi1600, Mesu200 Witches Broom Ha_R_Oiii_G_OiiiB Esprit150/SX46, Esprit100/ASi1600, Mesu 200 Eastern Veil Ha_R_Oiii_G_OiiiB Esprit150/SX46, Esprit100/ASi1600, Mesu 200 Elephants Trunk Nebula SHO_RGB stars Esprit150/SX46, Esprit100/ASi1600, Mesu 200 Dave
    2 points
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