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Showing content with the highest reputation since 25/04/18 in all areas

  1. 48 points
    First time I have a proper go at some astro with my nifty fifty lens. Canon 600d full spectrum, ISO800, 50mm f1.8 lens stopped at f4, 10x600sec guided on my eq3 pro mount. I love how it came out.
  2. 24 points
    I've just come back from a great evening spent with some astro society friends. We spent it at one of our members house. He has a 14 inch Meade SCT in a roll off shed and pretty dark skies for this area. I took my box of Ethos eyepieces and we had simply superb views of late summer / early autumn targets including M57, M27, Mars, Neptune, Triton M31, M32, the Veil Nebula (in pieces - it's a 3.5 metre focal length scope !) The Blue Snowball, Mirach's Ghost, M33, NGC604, M13 and others. The image scale that the scope presented seemed huge to me - even the 21mm Ethos was giving 166x. The targets looked really spectacular though, especially M13, the great gobular cluster in Hercules. Stars resolved to the core and the "propeller" dark rifts were clearly visible. I've never seen M32 looking so large and bright - there seemed to be a lot of space between it and that huge extended core of M31. The Western Veil really did look like a flowing river as it twisted past 52 Cygni and the Ring nebula seemed to show hints of colour to several of us. Those 14 inch SCT's are beasts though, when you are stood right next to one I've only used Ethos eyepieces in dobs up to now but these 100 degree monsters seem to open up the sky in SCT's as well - The view of M13 with the Ethos 21 actually elicited gasps from several observers. Really good fun and sociable as well
  3. 24 points
    Last night was mainly used for testing my setup. But I did manage to capture Saturn in the early hours of today 15-07-18. Captured with a C11xlt Asi290mm & Baader IR-RGB filters. Thanks for looking
  4. 23 points
    I guess I would be totally out of imaging at the moment if I didn´t have my 3 nm Astrodon Ha-filter. First clear nights in over 2 months and of course that darn evil orb is up there, bright as ever! Managed to get a total of 76*5 minutes and I guess this is about as good as I can get it considering the full moon. Really can´t wait to get my hands on some O3 and S2 data for this one now! Oh, if only I could afford Astrodons for those as well... The field of view of my Sigma 500mm lens really fits this target! Thanks for watching, hope you like it Gear used: ZWO ASI1600MM-Cool @-20C Astrodon 3nm Ha filter Sigma 500/4,5 EX DG HSM tele lens ZWO EF lens adapter ZWO EFW-8 filter wheel Orion Magnificent Mini Autoguider Skywatcher HEQ5 Pro Synscan
  5. 23 points
    The weather has improved in Spain over the last few weeks and we have captured 30+hrs on M101 comprising Lum 56 x 600s; 30 x600s each RGB and Ha 18 x 1200s. With this level of data the colour revealed shining through has been terrific. Deconvolution helped the detail within the luminance and some gentle teasing with local histogram equilisation and contrast curves helped the detail tight within the core. I was surprised by how much detail the FSQ106 captured: see crop. Details: Tak FSQ106 at F5 10 Micron GM1000HPS QSI683wsg-8 with Astrodon filters Lum 56 x 600s; RGB 30 x 600s each; Ha 18 x 1200s Data acquisition: Steve Milne & Barry Wilson Processing: Barry Wilson Location: our shared rig at e-Eye, Spain Full Frame: Crop: Thanks for looking!
  6. 21 points
    It is rather fitting that yesterday I went to Bath with my wife and daughter; while the girls were in the shops, I snuck away to 19 New King Street and visited The Herschel Museum of Astronomy, located in the house where William and Caroline Herschel lived and worked before moving to Slough. It is a fascinating tour, though quite small, so you won't need all day for the visit! So, it is rather fitting that I present to you my version of NGC 7789, Caroline's Rose, discovered in 1783 by Caroline Herschel from that very house in Bath. It is a magnificent cluster located some 7,600 light years away from Earth in the constellation of Cassiopeia. It is a dense cluster of stars about 1.6 billion years old. To me it seems to be edging towards a globular cluster, or at least it looks that way. It is of course significantly younger than a glob, though is pretty old for a cluster, and is in the rich star fields of the Milky Way, not orbiting in the halo of the galaxy like most globular clusters. It is quite possibly the most starry of star pictures that I have taken so far! Technical details: Skywatcher Esprit100 ED, QSI 683-WSG, HEQ5 Pro, Baader 1.25" filters L, R, G & B = 18 x 600s each Total = 12 hours I am generally happy with this image, the stars are nice and tight, though there is an annoying halo around the brigh star top left, Rho Cass. I think that it is generally a pretty dusty area, which could explain some of that and other softer brighter areas, or it might be down to the Baader filters - do I hear those Astrodons calling me yet again?!!? I hope you like it and as always, I look forward to your comments. Clear skies and enjoy these earlier and earlier dark evenings!
  7. 21 points
    My first attempt at imaging and processing a dark nebula, and probably my first really good run at the Atik 383L+ in some proper darkness. I imaged last night from 10pm so I had to content with the moon after midnight. I haven't used darks because I hadn't built a library of darks past 600s. Currently doing them now, takes a while at only 4 per hour! 18 x 900s L with Atik 383L+ 38 x 300s RBG with Canon 40d ED80 FF0.85x EQ6 It was nice to see some detail come through. Please feel free to offer advice. Processing with DSS and PS. I hadn't really a clue on how to process this, and it does look a bit harsh. The DSLR image was quite horrible too
  8. 20 points
    Processing this was a bit of a challenge to say the least. My Comet only stack left very noticeable blue streaks near the Pleiades and I couldn’t remove them. They were even worse after I’d removed the large light pollution gradient near the bottom. So I cheated a bit, well it seems like cheating. I split both images in two, then used Gradient Merge to recombine half of the Comet only image with the good half of the Stars only image. I’ve darkened the background quite a lot to try and hide residual star streaks in the bottom half of the image, so don’t look too closely. I was very pleased to catch it with The Pleiades in the early hours of Sunday Morning. The rain and the absence of some street lights had improved the subs compared with my previous comet image. Its the same set up as before, Canon 450D, 135mm on Star Adventurer, F2.8 ISO400 about 1.5 hours of 30 second exposures, processed in PixInsight. Hope you like it.
  9. 20 points
    These are a couple of images I took last Thursday night through into early Friday morning, went out late, had a few setup niggles but by 11pm everything was doing the right thing. I set up the M45 imaging session in APT as a vertical plan, so it takes a sub through each filter in turn so if the imaging session is interrupted then you at least have data from every filter selected. M45 by 1am was heading over towards the meridian and into my dreaded bubble of logistics center light pollution, so I stopped the session - 2hrs , 30 min each of LRGB in 120s subs. The moon, although only around 40% illuminated was up so I decided to go on with Ha(7nm) only and as Orion was well positioned it was either M42 or Horsehead, I decided Horsehead and set up the plan to run for 2 hrs and use 300s subs. I have had the ASI1600 for nearly a year now, but its sensitivity on unity gain 139/21 is amazing and although these images have quite a bit of noise I am reasonably happy to post them up for everyone to view. The Horsehead focus is slightly soft, my fault for not checking after I slewed over to HH, so its had a bit of de-convolution applied in PI All taken through At106ED with 0.75X reducer/FF and IDAS D2 LPF and Baader LRGBHa(7nm) mounted on AZ EQ6 Captured with APT, processed APP, PI, PS Bryan
  10. 19 points
    NGC 1514 is a planetary nebula in the constellation Taurus that was discovered by William Herschel on November 13, 1790, describing it "A most singular phaenomenon" and forcing him to rethink his ideas on the construction of the heavens. Up until this point Herschel was convinced that all nebulae consisted of masses of stars too remote to resolve, but now here was a single star "surrounded with a faintly luminous atmosphere." He went on to conclude "Our judgement I may venture to say, will be, that the nebulosity about the star is not of a starry nature". It has since been conjectured that the nebula in fact envelops a tightly orbiting double star with a period of up to 10 days. Gas is presumably expanding away from the larger star of the pair. 15 hours 30 minutes total capture R 20x300 G 20x300s B 20x300s Ha 21x1800s Image captured remotely at Alcalali, Spain APM TMB 152 F8 LZOS, 10 Micron GM2000HPS, QSI6120ws8
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