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Found 126 results

  1. Cosmic Geoff

    Small Mars, 17 Jan

    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.
  2. Cosmic Geoff

    Small Mars, 9 Jan

    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).
  3. Willgiffotron

    What lens is best

    Hi. I’m kind of new to stargazing and I want to view mars. On the website I bought my telescope from it says that planetary observation can be done with clear images being produced but I can’t see much of Mars and I was wondering what eyepiece would be best it has a 114 mm apature. thanks for any help you can provide.
  4. Hi everyone Ages since I was here. Anyhow the recent Mars-Neptune conjunction on Dec 7 prompted me to try to capture it with my Canon 350D and 300mm lens on a fixed tripod. Both images are stacks of about 10 images with exposure of about 1s. Taken at dusk. Chris
  5. 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.
  6. MarsG76

    Mars - 26 July 2018-0134hrs

    From the album: Solar System Objects

    Mars with Hellas Planitia and Syrtis Major visible. Looks like the Dust storm, which was persisting on Mars for the last few months is starting to die down, revealing more detail than only a couple of weeks ago.

    © Mariusz Goralski

  7. MarsG76

    Mars Compilation - 2018

    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

  8. MarsG76

    Mars - 21 September 2018

    From the album: Solar System Objects

    In this image Olympus Mons is visible in the lower right side near the terminator, Tharsis Montes in the middle and a "Y" shaped squiggle in the center right disc is Valles Marinares. This image of Mars was taken using a 8" SCT at 6764mm focal length/f33.3 with a Imaging source 21au618 and Skyris 618C CCDs.

    © Mariusz Goralski

  9. MarsG76

    Mars - 10 September 2018

    From the album: Solar System Objects

    This image of Mars was taken using a 8" SCT at 6764mm focal length/f33.3 with a Imaging source 21au618 and Skyris 618C CCDs.

    © Mariusz Goralski

  10. MarsG76

    Mars - 28 August 2018

    From the album: Solar System Objects

    This image of Mars was taken using a 8" SCT at 6764mm focal length/f33.3 with a Imaging source 21au618 and Skyris 618C CCDs.

    © Mariusz Goralski

  11. MarsG76

    Mars Closest approach 2018 - 1 Aug 2018

    From the album: Solar System Objects

    This image was taken during the night of Mars' closest approach to earth during the 2018 opposition. This image was taken using a 8" SCT at 6764mm focal length/f33.3 with a Imaging source 21au618 and Skyris 618C CCDs.

    © Mariusz Goralski

  12. Cosmic Geoff

    Mars, October 2018

    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.
  13. Last night I got outside early to grab a chance to observe 3 major planets: Jupiter - could make out little in the twilight with the 127mm Mak. Saturn - seeing still poor - I imaged it but the result is not worth showing. Mars later on was better - its apparent size has shrunk, but this was the first time this year I have had a result with Syrtis Major facing the Earth. Syrtis Major, the bright area of Hellas and the south polar cap can all be made out in the image. Altitude of Mars was about 11deg - note that the southerly declination is decreasing as it moves North - quite significant if it is roof skimming as here. Imaged with C8 SE, ASI120MC, ADC, processed in Registax6.
  14. 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
  15. 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.
  16. Hi Stargazers, After a lot of work and help from the great Damian Peach I managed to get some really good images of Jupiter Mars and Saturn despite a total spend of just £100... and I made another bonkers Astrobiscuit video about it which I hope you enjoy. Mr Peach really helped me pick my nights to image and the other big surprise was how good the canon 600D is at planetary. All comments/ advice/ criticisms most welcome...
  17. Stargazer33

    2018-08-02-2252_8_Mars

    From the album: Stargazer33's Album

    C9.25; CGEM; ES 3× tele extender; Zwo ADC; QHY5LIIc Captured in EZP, sorted & centred in PIPP, stacked in Autostakkert2, wavelets in RS6, final processing in PS CS4 extended.

    © Bryan Harrison

  18. ShrewView

    Doh, what a night

    Report for the evening of 16/08/2018 With a clear night forecast I decided to try and get in a long session. The plan was to start with the crescent moon, work through the planets, throw in a few faint fuzzies and if the weather and I held out, finish with M31 sometime in the early morning. So, having set out both scopes earlier to settle I began with the moon. I really like these early phases of the moon as you can make a start before it’s even dark, and as it gets darker the more you begin to see on the surface. On view last night were some great features. The crater pair of Hercules and Atlas, the Mare Nectaris and the overwhelmed crater Frascatorius. I’d got my sketching stuff out hoping to have a go and was trying to decide which to have a go at when a stubborn low band of cloud rolled in and covered that part of the sky, so no sketch tonight. Well, over to the other scope, the 8inch newt, and lets just do a star test to check collimation. As it was still only getting dark I picked a brightish star at random with a low power eyepiece, defocussed and then swapped in a more powerful one. After a short time fiddling I was pretty happy with this but no matter what I did one side of the out of focus star image looked distorted. Was the mirror pinched or something wrong with the eyepiece? In the end I settled for what I’d got and focussed down to a lovely sharp pair of points! Doh, I’d picked the double star Rasalghethi! A lesson learned there. Still I really enjoyed the view of the main orange star and its bluish smaller companion so think an evening of doubles is on the cards sometime! Early views of Saturn were plagued by the same cloud bank that had covered the moon, but eventually it cleared and Saturn and a few of its moons were well worth a look. Also, worth some time were the lovely Messiers in the same patch of sky. M8 the Lagoon, then a whole patch of M’s including lovely open and globular clusters each worth time, but I had to push on. Mars was just clearing the trees so I sat down to see what I could see in terms of detail with the binoviewers. I tend not to look at what it is supposed to look like beforehand as I think the mind has a way of seeing what it wants. So, with Baader Neodymium and UHC filters to swap in I decided to sketch what I could. The UHC helped to darken those dark features but it also seemed to exaggerate the atmospheric distortion. After about an hour I went to compare my sketch with the view shown on https://astronomynow.com/mars/ Pleasingly my view was broadly the same, though lacked the detail. I didn’t see any straggling Perseids last night but did catch a couple of bright meteors, probably Northern Aquarids. By now around 2am, the sky was as dark as it was going to get, about 20.7 sqm, which isn’t the best its been here, but still good enough to see plenty of milky way stretching overhead. A quick view of M13 always makes me smile…so many stars but I moved on via another globular in Sagitta, M71. Much smaller than M13 but still sizable enough to start picking out stars with 8 inches, albeit with averted vision. On to M27 to spend a little time seeing what I could tease out. Clear without any filter the UHC definitely added to the definition, and the dumbbell shape was obvious against the broad white slightly elliptical smudge. Again, averted vision helped to give the hint of some structure to these edges. So, onto the Veil. It’s easy enough to find where it should be by hopping along from Sadr to just past the next bright star Gienah but honestly, I’ve struggled in the past and been underwhelmed. Well tonight with no moon and good transparent skies it was great. The eastern part C33 was just there, faint but obvious enough against the background stars. Pop in the UHC an it goes up a level. Swap that for the O111 filter and it was even clearer. Big too. Curving gently away out of the field of view, I followed it until it petered out then moved back and forth from end to end trying to find more detail. I moved over to the Western part C34 and again, there it was, particularly around the star 52cyg but other parts were visible as well, though not as clear as the Eastern section. I was really tempted to try a sketch but tiring so will leave that until another day. Last I tried for Andromeda to round out my nights plan, but by now it was around 3am and high thin clouds were moving in and the sky noticeably brightening, so it was time to pack up. I’d had a really good session, despite a few early clouds and a Homer Simpson Doh moment with collimation. Should tide me over until the next clear spell. Thanks for struggling through this and hope you all had a great starry night too. Dan
  19. 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.
  20. Stargazer33

    Saturn & Mars from 02 August

    No where good enough for the imaging challenge on planets, but my best for a LONG time. I think I've imaged more in the last couple of weeks than I have in the last couple of years! Anyway, for what they're worth here they are: This is an image from Winjupos for Mars at the time of capture: C9.25; CGEM; ES 3× tele extender; Zwo ADC; QHY5LIIc Captured in EZP, sorted & centred in PIPP, stacked in Autostakkert2, wavelets in RS6, final processing in PS CS4 extended.
  21. Hi Astronomers, Just sharing with you the picture of Mars I imaged on 1 August 2018. Clear skies, MG
  22. Mars and Deimos, the small natural satellite of the planet Mars GSO 0.20 m Sky-Watcher EQ-5 Pro Deluxe motorized ASI 120MC + IR/UV Cut filter GSO barlow lens 5x (APO) Baader Planetarium IR/UV Cut filter f: 5000 mm f/25 Mars 31/07/2018 01:36 Deimos 31/07/2018 01:21 Matteo Vacca Milis, Italy http://vaccamatteo.weebly.com/ https://www.astrobin.com/users/matteovacca/
  23. Mars 31/07/2018 01:36 GSO 0.20 m Sky-Watcher EQ-5 Pro Deluxe motorized ASI 120MC + IR/UV Cut filter GSO barlow lens 5x (APO) Baader Planetarium IR/UV Cut filter f: 5000 mm f/25 Matteo Vacca Milis, Italy http://vaccamatteo.weebly.com/ https://www.astrobin.com/users/matteovacca/ My best Mars with the newton.
  24. Mars 31/07/2018 01:36 GSO 0.20 m Sky-Watcher EQ-5 Pro Deluxe motorized ASI 120MC + IR/UV Cut filter GSO barlow lens 5x (APO) Baader Planetarium IR/UV Cut filter f: 5000 mm f/25 Matteo Vacca Milis, Italy http://vaccamatteo.weebly.com/ https://www.astrobin.com/users/matteovacca/ My best Mars with the newton.
  25. 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.
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