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Found 77 results

  1. Hi folks, Do you do long or short exposure to take a picture of the comet? Plesse advise what I should set my Cannon EOS to (its an ancient camera) I will connect to my celstron SCT 9.5” or is that too much magnification? many thanks! Paul
  2. Finally I processed the Comet Neowise captured from Bangalore. Simple Set-up: Canon80D, Sigma 70-300 DG APOII @100mm F/4. ISO2000, 50x5s Stacked in Deep Sky Stacker Processed in Pixinsight. Lots of noise as I wanted to pull out both tails
  3. Taken from our back garden at about midnight Friday 17/Saturday 18. EQUIPMENT: Canon 1100D modified by Juan Fierros at Cheap Astrophotography, Canon 70-210mm f4 EF lens @ 140mm, Hoya HMC UV(c) filter, CLS EOS clip-in filter, Static tripod (Slick88). 11 x 4" frames manually stacked in PS CS4 using a new Exclusion layer for each stacked frame. Then levels; curves; Exposure; Filter - HLVG; Filter - Gaussian Blur; Hue/Saturation; Colour Balance; Channel Mixer, to name but a few! I had to do a manual stack as DSS didn't seem to be able to recognise the stars, reporting back that only one frame would be stacked?
  4. Hi all, is there a best filter to use to view comet Neowise? Many thanks! Paul
  5. So, ATLAS has disintegrated, and it won't provide us a great show in May. But there's another comet that could reach naked-eye visibility in the same time that ATLAS' debris reach perihelion. It's C/2020 F8 (SWAN). It's had an outburst recently and it could reach 3rd or even 2nd mag. And it's looking pretty good from the southern hemisphere! Here, in the north, we'll be the only ones that will see the perihelion of the comet. So let's see if we're lucky this time... No one knows what could happen, but I have hope. It was only discovered on March 25th, so there's still time to see how this comet reacts.
  6. Hi, I and my girlfriend are now drawing plans to catch the comet C/2019 Y4 Atlas on photo. It's just a few weeks until it reach it's maxima for us living in the Northern hemisphere. We belive there are a lot of others that plan to do the same. We use my travel mount Star Adventurer and two cameras with telephoto lenses, a bit overloaded but easy to bring to a dark place. I have updated my comet page with examples that belong to this comet. Maybe could be interesting or of some help for you ? UK isn't far away from Sweden and the circumstances not to different from ours in Sweden. http://www.astrofriend.eu/astronomy/tutorials/tutorial-comet-photography-planning/tutorial-comet-photography-planning.html I have also this comet related page that I wrote long time ago: http://www.astrofriend.eu/astronomy/tutorials/tutorial-find-comets/tutorial-find-comets.html We wish all of you a clear sky and that you get nice photos of the comet ! Lars and Gunilla
  7. Comet C/2019 Y4 (ATLAS), currently 160 million kilometers away from the earth and motoring along quite nicely. This short timelapse consists of 100 x 60 second images taken over 150 minutes with a ASI533MC-Pro camera and William Optics Zenithstar 61 refractor captured with APT and post processed using PixInsight Blink for the animation. The bright star lower right is Althiba IV Comet C2019 Y4 ATLAS.mp4
  8. DoctorD

    C 2014 Q2 Lovejoy

    From the album: DoctorD's Photos

    Comet C/2014 Q2 (Lovejoy) taken on 01/02/02. Single 30s frame captured using Lodestar Live & Lodestar-C with INED70 and F6.3 reducer.
  9. I'm still dizzy after processing this one for each LRGB filter. Comet 21P meets open cluster M37 in the night/morning of 10/11 September, at perihelion. This is a combination of 60s x 30 x 4 subs, taken through the SW130PDS with an ASI1600MMC. https://www.astrobin.com/366252/ No deconvolution applied, only noise reduction. About the remaining noise?! ... yes, please. Unfortunately the light pollution at home didn't let me record more. Thanks for watching and clear skies! Alex
  10. Inspired by some tutorial advice on comet stacking with DSS - using the sigma clip to get rid of star trails - I revisited my data from last year. 91 subs, 41s long, ISO 800. I think this is now rather better and it shows Catalina about to enter the triangle of Mizar, Alcaid and M110. Some fuzzy trails around the tails beacuse of teh strstch needed.
  11. Comet P/252 (LINEAR) has brightened to over 100x what was expected and is a binocular object in the dawn sky, but is fading rapidly adn the Moon doesn't help. Finder chart at: http://binocularsky.com/binoc_transient.php
  12. You can exploit the changing perspective of the view of a comet from Earth to construct a 3D image. This is my effort using 2 images of the comet taken 24 hours apart - the comet moved over 2 degrees against the background sky allowing the ion tail/dust tail angle to decrease by ~ 5 degrees. Its this change that provides the information your brain needs to see the ion tail stretch away into the distance If you can stereo "free view" with relaxed eyes - use this image - - click this image If you can stereo "free view" with crossed eyes - use this image - - click this image If you have an optical stereo viewer that can be used to view a computer/notebook screen then use the relaxed eyes image pair. Something like an OWL viewer works. The technical cards of both images give details of the comet registration method used to create the 3D effect. Thanks for looking
  13. This is my first light image using my new observatory dome installed last October - thanks to the weather! So the image was taking on the morning of 15th January exactly 3 months after installation. - click image Thanks for looking
  14. Comet C/2015 ER61 (PANSTARRS) travelling through Taurus constellation, now passing M45 Pleiades.I've discovered some reflections from inside the optical train (flattener), but don't know any method to remove it from the image.Scope: Skywatcher EVOSTAR 80ED DS-ProMount: HEQ5Pro Camera: QHY168C Filter Optolong L-PRO MAX Luminosity Guiding camera: ZWO ASI120MM Guiding scope: Finderscope 9x50 14x300s exposure at -10°C (70 min total) binning 1x1 10xdarks 10xbias
  15. I observed comet C/2016 R2 (PANSTARRS) tonight using the 20" dob. I located it using sky safari 5 and was using ethos13 eyepiece (x150). The comet was pretty faint but easy to spot. Switching to ethos8 (x250) it was a fuzzy blob. no core was directly seen. A tail appeared! Switching to ethos10 (x200) the view remained a fuzzy blob with a tail. Probably the ethos8 was the best view. The comet was easier to find than comet Heinze (which I observed on 28th December) probably due to it being more compact.
  16. COMET C/2014 E2 JACQUES Meets the OPEN CLUSTER NGC 609 23 / 08 / 2014This is my first attempt at a Comet. After having various issues with stacking and a rogue stretched star as a result of a stacking error. I can finally feel proud after relentless hours spent at stacking and re-stacking this image. I feel proud I managed to process this Comet as well as it looks. I think there is a hint of a tail at the 3 O'clock position but who knows... The bonus is the comet is above an Open Cluster NGC 609 which adds more interest. Conditions were good and if I had set-up the Mount better I may have managed longer subs. There is a hint of star trails due to wind and tracking issues.16 x 30 secs Light Frames30 x 30 secs Dark FramesISO 800Skywatcher 200P 8" 1000mm ReflectorEQ5Canon 1100D ModdedBaader MKIII MPCC + Hutech IDAS LPS-D1 FilterHI-RES IMAGE:
  17. Comet C/2011 L4 PanSTARRS from Lindean near Selkirk on Saturday 20th April. As Comet PanSTARRS slowly fades it is now possible to get more detail within nucleus as in this image tracking on the comet itself. Had the telescope been guiding on the stars at sidereal rate as usual then the stars would be round but the comet would leave a trail the same length as any star trails in this image, so in this 25min exposure the comet has moved the apparent length of the star trails. 5" Takahashi Refractor (guiding on comet nucleus) Canon 60Da iso 800 x5 300sec exposure with extender. No Flat Frames No Dark Frames (Quick & Dirty) C2011 L4 PanSTARRS - Nucleus Of A Comet by mikeyscope, on Flickr
  18. Comet C2011 L4 PANSTARRS from Kelso on Saturday 30th March. The green colour around the comet nucleus can be caused by the release of chemical compounds such as Cyanogen (CN), Diatomic Carbon (C2) ...& Amidogen (NH2). 5" Takahashi Refractor Pentax K5 iso 800 x1 120sec exposure with extender. No Flat Frames No Dark Frames (Quick & Dirty) Comet C2011 L4 PanSTARRS from Kelso by mikeyscope, on Flickr
  19. Now that ISON has crossed the orbit of Mars, it is time we start contemplating on possible techniques to photograph it. Personally I have a Sky-watcher 200PDS on the HEQ5-PRO goto mount, and my trusty Canon 550D. I have never attempted to photograph a comet before, so would highly appreciate any tip and advice from anyone in these forums.
  20. Star101

    Comet41P.gif

    From the album: David Newbury

    Taken Saturday night 9 April17. I set PHD2 to follow the comet which it did while I images 12 x 600 seconds. But then, if you look closely you can see, the Comet passed a star and PHD2 could not decide which bright object to follow. So crashed . Needless to say, I managed to create a GIF out of it. :)
  21. Aenima

    Comet Catalina

    From the album: The next step.

    Was really chuffed to catch this comet, especially with the two tails. This i believe is the 5th comet i've caught 'on film' as it were. Along with Panstarrs - ISON - Jacques, and Lovejoy (forgot the numerical names). Equipment: ED80 - / 350D -/ EQ6 -/ CLS clip
  22. A friend had sent me these images. The object wasn't moving, and claims it produced bright flashes. The images were taken with a phone (unfortunately) on the 5th and 6th of January. Perhaps some of you might have a logical answer. He says he doesn't believe it's a UFO (otherwise I probably wouldn't be friends with him anymore), so I doubt it's fabricated. edit: I should also note that this was taken in Serbia, Kovin, around 1AM.
  23. A spectrum of Comet 46P (Wirtanen) with the ALPY600. The raw spectrum image before sky background subtraction. Note as well as the comet spectrum, the bright Na D line from local light pollution and other auroral lines from natural airglow The coma extended beyond the length of the slit so a separate sky spectrum was recorded and subtracted The Spectrum of the bright central region is dominated by the scattered light from the sun while the spectrum of the extended coma is mainly emission from excited molecules such as CN (The very bright line in the UV), C3, C2 (The Swan bands which give the coma its blue green colour) and NH2 By removing the emission component from the spectrum of the central region and dividing it by the spectrum of a sunlike star recorded the same evening, the reflectance spectrum of the dust can be extracted Robin
  24. My submission for 46P Wirtanen Details: Single exposure, 1 minute iso 1250 Nikon 800E full frame - edge cropped Altair Astro 115 EDT-APO refractor on iOptron iEQ45 Pro mount. Capture: SG Pro, guiding PHD 2 via SX Lodestar Processing: PixInsight 1.8 and Photoshop CS3 Extended (for caption and resizing)
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