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Found 143 results

  1. Hi All, I was lucky to have had a night of particularly clear and crisp seeing. I was planning on doing nothing more than observing tonight but after seeing nice steady and detailed views of Mars and Saturn at a magnification of 406X in my 8SE I was told by missus that I will regret it if I don't image these planets tonight.. I'm glad that I did. I'm stoked with the results so I'm sharing them with you. It does go to show that seeing and collimation are extremely important when imaging. Thanks for looking. Mariusz
  2. Hi all, I thought I'd share my observation from this night. At approximately 22:00 local time I was already setup and ready to image Mars and Saturn. As I'm using a mirror diagonal for framing/searching purposes I looked through it and focused using my 40mm LV eyepiece. What I saw in the eyepiece took my breath away. The disc was massive and detailed. I stack Baader Contrast Booster and Neodymium filters for planetary viewing since it does make a considerable difference in revealing detail and increasing contrast. Mars showed a big disc with two CLEARLY visible patches on both the "north" and "south" (equivalent to earth location polar cap regions). There was a clearly visible dark greenish borders around the white patches. The bottom part was white and crisp with a irregular dark greenish patching bordering it from the pinky orange center of the planet. The equator region showed some dark markings around where, I think, Olympus Mons is located. Now I'm not saying that I spotted Olympus Mons in my 8" SCT but I'm thinking, and hoping, maybe... there was definitely something there along with other more subtle spots and shades. This was hands down the best view of Mars I've ever seen. After Mars I had a look at Saturn, it was big and clear although it was not the clearest I've ever seen. Last year I had a clear view of Saturn's cloud bands and a crisp Cassini division surrounded by 5 of its moons (that was the best view of Saturn I ever experienced). This time the Cassini division was there but not as defined as before and any cloud bands were a struggle to see, and the Cassini division was coming and going. There were 4 moons around it glistening in the dark. I know some of you might be wondering why I have seen such big discs using only a 40mm eyepiece. The magnification was at least 250X-300X judging by the size of Saturn in my past experience near opposition using nothing but eyepieces and a diagonal. The reason why the magnification was so high with the 40mm was because it was a bit of a distance away from the visual back and I was also using a Celestron 2X barlow, due to me being setup to do planetary imaging. The lineup was a 2X barlow, 1.25"-2" adapter, a Vixen flip mirror, on the mirror the 40mm eyepiece, and behind the flip mirror were a filter wheel and a IS 618 CCD as shown in the pic. Does anyone know how to work out the actual focal length in a setup situation like this? The pictures didn't come out as crisp as I though they would after the seeing I was experiencing, I'm thinking that the line up caused a bit too much magnification. When I tried the 2.5X power mate the magnification was less, about 60% of the size with the Celestron 2X barlow, I think the TV 2.5X powermate should be labelled 1.5X. I didn't capture any images through the PM due to Mars moving out of the optimal imaging position, coming down with Bronchitis and starting to freeze through my layers of jumpers so I ended my session. The views I had I will definitely remember for a long time and I'm looking forward to the next Mars opposition since it'll be another 38% closer and again will move through the zenith visible from my location... now thinking about a 16" dob for those views!!! Thanks for reading, Mariusz
  3. Mars from last night with the Skywatcher Pro 150, EQ5 manual tracking with Xbox 360 camera, 2x Barlow, UV/IR cutoff filter. 3 different processes from the same stacked image. 30fps, 3500 frames stacked in AS!2 from 5200 total, wavelets in RS6 and finished in PDN.
  4. Ok, so i had my first run at planetary imaging yesterday evening, which was disappointing to say the least :/ I was trying mars. The setup went smooth, and imaging went ok as well, but the seeing was very bad and especially the heat of the atmosphere was high, which blurred the images to the point that mars' image was not even a sphere (see left image). There are , however, also other probable issues: + Short focal length (800mm) with an 8mm EP, resulting in only medium magnification + problems with focusing the blurred image + missing real astro darkness (24th of june) + days' high was around 28 deg c, although it had cooled down to 22c at imaging time... Have you guys & girls tips on how to improve? The resulting image from stacking 1600 out of 3800 images was a mess, but at least spherical
  5. Just a quick process of one of the 26, 3 minute videos I took between 22:00 & 00:00 UT on 8th April. It should have been more only I set Sharpcap running and went into the conservatory to wait and watch through the window. Next thing I know it's 02:30 UT and the laptop has turned itself off and the mount is no longer tracking Mars!!!! Anyway, this is the first 3 minute video: processed in PIPP, stacked in AS2! and wavelets done in RS6. Equipment: Celestron C8 XLT, Revelation 2.5x barlow, Philips SPC900NC with Baader neodymium IR cut filter, CGEM mount. Not a patch on other images I have seen on the forum but my best Mars to date and I have a lot more videos to process yet. I was hoping to get enough to do a short rotation video, but I'm not sure 2 hours will be enough. Teach me to fall asleep! :coffee: Just as a last thought; would it be better to leave the IR cut filter off in future?
  6. I’ve been enviously watching the detailed Mars images appear here on SGL from the 8+ inch scopes, when my previous efforts over the last couple of weeks have been absolutely awful. You wouldn’t have known it was a planet, it just looked like a small fuzzy splodge, through the SPC900 or the DMK21! I’d been starting to wonder whether that was all I would be able to get on Mars, and I’ve been struggling to reconcile that with the view I had of Mars a couple of years back through the little Mak, where I could see bags of detail (by Mars standards anyway! ). Anyway, just after midnight I set the camera up to run on Jupiter and the moon for a while, before I realised I was about to lose Mars behind a huge tree for an hour or more, so I swung round and had a crack at it. Thought I could see a hint of detail, just a dark patch on the right hand side when I was trying to find the right settings, so figured I must be close. Did 3 runs with different settings, praying the dew didn't get any worse, packed up for the night and came inside. OK, so in hindsight, imaging the ‘Red’ planet in mono means that a certain amount of the wow factor here might have been lost, but I was dancing around like an absolute loon when this popped up in Registax… Far from perfect I know, but a huge ‘personal best’ for me on Mars. The seeing wasn’t great here either, though it wasn't terrible like it has been recently, though most of the frames looked real fuzzy. This gives me some hope that I might even be able to improve a bit more over the coming weeks. This was 5 minutes at 30fps, Exposure -6, Brightness 15, Gamma 97, Gain 809, with a stock Skywatcher 2x barlow, run through PIPP and then stacking the best 20% in Registax. I’ve been on a high ever since! Picked up a couple of reasonable lunar shots as well – I think the DMK21 (which I actually picked up in FLO’s clearance last year, but have had very little time / clear nights to use it) will be amazing on the moon once I get my settings and focus right. Can’t wait for Saturn to rise a little earlier – I tested the camera out very late in the Saturn season when it first arrived last year, and it outperformed the SPC900 by a mile, so even though Saturn isn’t going to be particularly well placed for us this year, I’ll be ready for it!
  7. The Moon joins the planets for this evenings showdown through a halo of river mist. Planets Mars & distant Neptune at upper left with Venus at lower right below the Moon. Pentax K5 Pentax 75mm lens @ f11 Exp 15 secs tracking iso 800 Moon & planets in evening mist halo 2nd Jan 2017 by Mike Dickson, on Flickr
  8. hi, the coordinates for m39 open cluster is ra 21h31m7s,dec 48 27 0,azimuth 10 38 55,alt 53 35 27..how to set this in my eq mount telescope..my scope is celestron 130eq...if i learnt this it will be easy for me..i tried INTERNET but don't know to set in scope...
  9. From the album: My Astro Pics

    Taken with my Panasonic Lumix through a Baader Zoom Eyepiece + Baader Neodymium Filter using my Orion XT8.

    © ©DanielJamesWatts

  10. StarryBob

    Mars

    From the album: Starry Bob's Starry Shots

    The best I could get of Mars due to poor seeing and it being a pain to image.

    © StarryBob

  11. From the album: Solar System Objects

    This image is a compilation of my captures of Mars at various dates during this years opposition season of Mars. All of the images were taken using a 8" SCT at 6764mm focal length/f33.3 with an Imaging Source 21au618 and Skyris 618C CCDs. Since all of the images were taken at the same focal length and the same telescope, this is a good representation and comparison of the size of the martian disc as it got closer, was at opposition and was getting further from Earth.

    © Mariusz Goralski

  12. timwetherell

    Sketch of mars

    From the album: Astro sketches

    Sketch of mars through my 7" refractor. Very low to the horizon so a fair bit of atmospheric dispersion and a lot of "shimmer" but the polar cap and some features were still visible even this far past opposition (November 29, 2016)
  13. Another tricky low one, but certainly viewable. At 5am Mars will be 10 degrees above the horizon, with Saturn only 1 degree 17" away. Best seen with binoculars or naked eye, telescopic views will likely be poor due to the low altitude.
  14. I had another go at imaging the shrinking Mars, this time without and with a x2 Barlow lens. The results are better with the Barlow, which is what one is led to expect. For whatever reason (probably bad seeing and/or low planets) when I tried a Barlow previously it just made the blur bigger. Equipment: C8 SE, ASI120MC, x2 Skywatcher kit Barlow element screwed directly into 1.25" barrel of the ZWO camera. This does seem to give x2 in practice. I did not use an ADC on the grounds that I shouldn't need one with Mars at an altitude of over 40 degrees. 3000 image video captured with Sharpcap. Processed in Registax6. I found that the Sharpcap exposure histogram did not appear to work on such a small image, so had to estimate the exposure. Yes, optical ADC correction would be better, but the dispersion seemed very small. Blowing up the image x2 in Registax showed a small colour fringe, which I took out with a single point of correction. The images show some surface detail though the contrast is low (if you are using a flatscreen try viewing from below: ?) Mare Sirenum, with Mare Acidalium just discernible foreshortened at upper right.
  15. Here is an image of Mars I made on 9 Jan this year, with a C8 SE, and ASI120MC camera. The images are rather small (around 7" dia). Mars is now much higher in the sky than at opposition, so it seemed worth taking a few farewell images as it diminishes in size. Captured with Sharpcap. I did not use the ADC - the images are corrected for AD in the processing in Registax. This is from a run of 3000 images. I have included a x3 Photoshop zoom of the same image to indicate the size of Mars at opposition on the same scale. I was quite pleased to record some surface detail, corresponding with the position of Syrtis Major. If I'd had more time, I could have tried some images using a Barlow lens. I have just discovered that I can unscrew the lens section from a Skywatcher x2 Barlow and screw it onto the 1.25" nosepiece of the ASI120MC, which will give a more modest zoom (I think).
  16. I imaged the conjunction around 17.30hrs GMT with my Startravel and ASI120MC camera on the SLT mount (+fixed wood tripod). The image scale with my C8 would clearly have been too large. The image, processed in Registax6 from 200 frames, is shown below. The image is shown horizontally flipped to match the telescopic view with star diagonal. I puzzled for some time over what exactly I had captured, but the centre dot is Mars (overexposed) the faint dot at lower L is Neptune, and the brighter dot at upper R is the star 81 Aqr. I also took a run which has Mars only slightly overexposed, and looking very small, and inevitably not capturing Neptune.
  17. I have continued to image Mars as it moves away. It is getting smaller, but on the other hand I don't have to get up in the middle of the night, the dust storm has subsided, and it is gaining significantly in altitude. Here is a series of images taken in September and early October, all taken with a C8 SE, ASI120MC, +ADC, processed in Registax 6. The seeing was often poor, but seemed better on Oct 3.
  18. Hello all,as a totak noobie and not just green behind thr ears but all over ?. Ive had my first scope for 7 days now a 2nd hand skywatcher 200p dob, i only have the 2 eye pieces that came with it. I decided to go out in the communal garden again tonight asbthe sky looked good,i got out at 8.30 to give the scope time to cool down and get muself comfy. It was a lovely fairly clear night.And for the first time i managed to get Saturn in my finder scope after finally sorting out its alignment on friday, i started off with tue 25mm eyepiece saturn was tiny but i could cleary make out the rings i was gob smacked so happy and excited i quickly fumbled for the 10mm eye piece and slipped that in a slight adjustment of the scope and saturn was slightly larger and the rings alot more visible wow wow wow i am still on cloud nine it was amazing,i looked at it and followed it for what felt like half an hour.my wife bought me a cup of tea and she had a look to and a couple of my neighbours were very impressed. I then waited for mars to move round and quickly focused on it and i started with the 25mm and then moved on to the 10mm. Before tonight i wasnt very impressed with the 10mm but it did a good job tonight. Im still buzzing and im off to bed now. Just thought i would share with all you wonderful people. Many thanks and best wishes From me Dave ?
  19. For once I set up my two catadroptic imaging scopes together to see how they compared, and how well the smaller one cut through the crud. C8 SCT on SE mount, ASI 120MC, ADC, processed in Registax6, 3000 frame video. Celestron 127mm Mak on Nexstar SLT mount, wood tripod, ASI120MC , ADC, processed in Registax6, 3000 frame video. The 127mm images are slightly smaller, placed second. The bigger scope seems to do better. I thought that Saturn did not change much and was just a seeing test target, but the shadow of the planet on the rings is now distinctly asymmetrical. The dark smudges in the C8 Mars images correlate well with real features. Mars altitude about 11 deg. The dust storm seems to be over. The seeing was better than it's been for a while.
  20. Okay I need to admit I am very amateur when it comes to knowledge of the celestial bodies. I do however believe myself to be intelligent (ish) but more importantly a deep thinker. My question is. Has any studies been done on the temperature difference on the Mars surface when storms envelop the planet for weeks? I can only imagine that it gets hotter! Maybe not beach time hot but possibly enough to thaw water trapped as ice near the surface. Look at Venus for instance, it covered in clouds and is hotter than Mercury!?!?!. So surely weeks of sand storms on Mars would raise the temperature there. Liquid water..... potential life? Like I say I'm just a deep thinker who thinks he's intellengent, no basis behind it other than theory.
  21. Hi Astronomers, Just sharing with you the picture of Mars I imaged on 1 August 2018. Clear skies, MG
  22. Mars covered by dust storm 12/07/2018 03:19 GSO 0.20 m Sky-Watcher NEQ-5 Pro SynScan mount ASI 120MC GSO barlow lens 5x (APO) f: 5000 mm f/25 Matteo Vacca Milis, Italy http://vaccamatteo.weebly.com/ https://www.astrobin.com/users/matteovacca/ First and only Mars obtained with my newton. The night i didn't use nobody filter and in the elaboration phase i had many problems but here is. ?
  23. Mars in opposition 22/05/2016 01:09 Are visible as two light spots two vulcains. From left to right: Olympus Mons and Elysium Mons (76.326 million km) GSO 0.20 m Sky-Watcher NEQ-5 Pro SynScan mount QHY5L-IIC + IR cut filter GSO barlow lens 2.5x (APO) f: 2500 mm f/12.5 Matteo Vacca Milis, Italy http://vaccamatteo.weebly.com/ https://www.astrobin.com/users/matteovacca/
  24. Last night I randomly woke at 3:15 and when ever I get up in the night i can't help but have a quick peek at the stars as the street lights are still off. I noticed Mars in the south but more bright than I've ever seen it, it really stood out. I'm wondering if this extra bright appearance might have anything to do with the colossal dust storm playing out at the moment and the particulate reflecting more light in the atmosphere? Any thoughts. Campbell
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