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Found 461 results

  1. I'm currently on my annual leave in Italy and the sky has been clear all day with no air turbulence. The telescope is out - of course - and I managed a session before dinner. I thought about sharing some photos taken with my phone and a couple of sketches.
  2. MarsG76

    Jupiter - 17Aug2019

    From the album: Solar System Objects

    Jupiter imaged on 17 August 2019 using a C8 SCT, Skyris 618C at f33.

    © Mariusz Goralski

  3. Hello All, Sharing with you my best images of Jupiter and Saturn for this year. I haven't had the luck of a High Pressure system with no wind speed yet, but on the 17th it was as close as I had for planetary this Jupiter/Saturn season. Not my best images of the gas giants ever but ok IMO. I'm happy to see that the GRS seems to be repairing itself, last time I imaged Jupiter, the border around the GRS looked like it was breaking up so perhaps it'll be around long enough for my kids to see in the eyepiece. Captured at f33. Images consist of the best 15% frames from 13x60sec @ 60fps for Jupiter and 13x120s @ 30fps for Saturn, derotated in WinJupos. Clear Skies, MG
  4. Hey all, I cannot believe my luck. I was out on the 31st July practicing imaging Jupiter and Saturn with the my new ADC and ZWO Asi224MC. All of a sudden the ISS started to appear from the South West heading East. I quickly released the clutches on the mount and followed the ISS the best I could with the finder scope. Everything was set in sharp cap for the Jupiter capture, ROI was set to 320 x 240, 2x barlow plus ADC. I could not believe it out of 6500 frames I manged to find 13 frames, which I stacked. Second bit of luck, PIPP said it could not find an object, so I turned the option off and it ran without errors. The hero was AutoStakkert which sorted the frames to the front of the ser file. Composite of 3 images from my night:
  5. Hey all, I just started imaging the planets again after a long break. I have just purchased some new equipment a ZWO ASI224MC and skywatcher ADC (replacement for SPC900). I have read a lot about image quality depending on the height of the planets. The image shows top row images I took in Dec 2012 SPC900 ( looks like the world did not end ) and bottom row July 2019 224MC. Would the difference I am seeing in quality be down to just position or am I not setting the new camera correctly? Thanks for any more image examples or help.
  6. Hi everyone, Can anyone confirm (or refute) - have I imaged Ganymede and Europa in orbit around Jupiter or is that just wishful thinking? (Only equipment used was a Lumix G7 with 150mm zoom lens - effectively 300mm with 2x crop factor - and of course a tripod). It appears to be the case and yet I can't quite allow myself to believe it... Thanks from an old newbie.
  7. Another attemp on Jupiter from me, a novice on astrophotography, lol. But this time image is taken using Orion Shorty Plus 2X Barlow. Image is still captured using Canon 60D, prime focus on CPC1100. Stacked and processed using Registax and Instagram as usual Two attemps on Jupiter which produce more or less the same image. Seeing from the image, I think this barlow degrade image quality quite significant. Please advise if any. Thanks Cheers
  8. Hello Astronomers, After imaging quite a detailed image (for using an 8" SCT) of Jupiter last year, I was hoping to match or exceed it this year, but I can't quite get that atmospheric condition which will allow me to capture those fine structures. Attached is my best Jupiter this year... I would have thought I'd get more detail since Jupiter passes overhead near zenith... I guess I just have to keep trying and hope for that super still night. Clear Skies, MG
  9. An image of Jupiter taken late evening, 27 June. Not as good as some other people's efforts, but one of my best Jupiter images this year. The planet was low (around 15 deg) and the seeing was not great. CPC800, ASI224MC, ADC, captured in Sharpcap, processed in Registax6. Best 20% of 5000 frames IIRC. One of the images here is a random raw frame, to show what I had to work with. Io should be visible on left in the processed image.
  10. An image of Jupiter taken early morning, 16 June. Not as good as some other people's efforts, but the planet was low (around 15 deg) and the seeing was not great. CPC800, ASI224MC, ADC, captured in Sharpcap, processed in Registax6. Best 15% of 7000 frames IIRC. One of the images here is a random raw frame, to show what I had to work with. Ganymede should be visible on left in the processed image. GRS coming into view on left.
  11. Just got 2nd hand Celestron CPC1100. Tried to take Saturn and Jupiter image with Canon 60D, prime focus. Took 1.5 minutes (Saturn) and 2 minutes (Jupiter) videos, stacked and processed with Registax and Instagram (lol). Hope to get better image later.
  12. From the album: Newbie

    Jupiter, CPC1100, Canon 60D, 2 min video moderate seeing condition, stacked and processed with Registax
  13. This is not a detailed write up of my session last night, but got to see the two planets that have been on my astronomy bucket list since starting this hobby at the start of the year. Didn’t hold out much hope for last night as the weather & clear skies apps both predicted cloud cover by midnight. I had put my Mak127 in the garage to cool at 8pm & kept my fingers crossed! Some clouds started to roll in at 10pm, so was not hopeful. By 11pm there was a clear spot, so setup the tripod & scope & took a look at the moon. Even with a moon filter it was extremely bright, showing good crater detail on it’s shadowy edge. Jupiter had also risen & took a look for the 1st time. I was amazed, a bright disc & 4 moons visible. 1st views were with my 8mm BST star guider at 187x. Placed in my 15mm BST to give me 100x & the view was bettered due to the conditions & height of the planet. Tried several different filters (green, yellow, red, etc) & finally got the best views with a light pollution filter showing 2 bands on Jupiter. With the sky holding out I decided to wait for Saturn to rise as wouldn’t be to far behind. At 12.30 a small bright light rose above the distant tree line in the SE. Moved the scope & to my amazement my 1st every view of Saturn! I could clearly make out the planet & its discs. At 1am I am lucky the the street lights turn off in the north of the Isle of Man, turning my Bortle 4 into a 1 or 2. But the brightness of the moon lit the sky. Had to drag my self to bed at 2am. Great night trying out my new equipment ( Mak127, dielectric diagonal & Giaz mount ) which performed brilliant & seeing Saturn & Jupiter topped it off. Hopefully many more clear skies as there hasn’t been many lately!
  14. If you ever come to Sweden there is an interesting model of our solar system here, it covers the whole country. They started to build this model in late 1990s and my teacher in astronomy prof Gösta Gahm was one of them who started this project. In May 2019 I was invited by Gösta to participate of the installation of Jupiter version 2 at Sky City in Stockholm. I took som photos and did a report from that event. If you find it interesting to read you find it here: http://www.astrofriend.eu/astronomy/astronomy-articles/sweden-solar-system-jupiter-2019/sweden-solar-system-jupiter.html ps. There are of course a lot of other interesting things to visit and see in Sweden! /Lars
  15. From the album: Planetry

    Both taken on the same morning from my hotel balcony in Fuerteventura April 2019. Using a star adventurer a Skywatcher 127 Mak, 2x barlow and 4k video on an EOS M50
  16. First good results with newly purchased ASI224MC camera. Using: CPC800, ASI224MC (USB3), ZWO IR cut filter, ZWO ADC. Conditions: planets low (15 deg or lower), near full moon, some haze. Time : around 04.40 BST. A few hours earlier I tried Mars but the results were poor asides for demonstrating the higher frame rate available with the new camera. In case you are wondering (as I was) what the difference is between an ASI224MC and an ASI120MC, the former does not appear to be any more sensitive so far as I could see (exposures no shorter) but the potential frame rate even with USB2 is higher. And the ASI224 has a deeper body for some reason. And this set of Saturn images is clearly my best ever.
  17. Finally got decent images of Jupiter with my CPC800. I was beginning to worry that I had invested in a setup that was inferior to my C8 SE.? The CPC800 mount is far nicer to use; it's much easier to get the image on chip and keep it there. And the GPS saves some time and effort. CPC800, ASI120MC, ZWO ADC, captured with Sharpcap, processed in Registax6. Note the Io moon & shadow, a circle near the middle of the southern cloud belt, and on the second image looks like the GRS just coming into view. Also got an image of Saturn - I have always found it hard to get a decent sharp image of Saturn (lower frame rate?)
  18. Hey guys. Thought about starting this thread. I feel like we all should inform eachother and newer members alike about the magngifications that can be achieved on planets,that provide the best sharpness/size ratio,depending on the scope and seeing. After this thread has grown a bit, i feel like this should be pinned,as to provide a little guide to newer members that are not experienced with planetary observing,as many will be fooled with the typical 50x per inch of aperture and get disappointed when they find that that image will be dim and blurry. For my 8” F/6 Sky-Watcher Dob For Saturn i like to use 150x in medium seeing and if i want something a bit bigger , switch to 240x ,which will give me a bigger,but blurrier image.iBut In good seeing, i found that 240x was very usable.When we have perfect conditions, i m certainly trying 300x. Mars, isnt very big in the sky right now,so even at high magnifications like 300x it still appears as a small orange dot. For observing mars,I suggest waiting for it to reach opposition.It benifits hugely from it! However,this happens once every 2 years....But 5ere are other planets to keep you occupied until then, such as jupiter,saturn and Venus. For Venus, i use 50-100-120 depending on its phase. For Jupiter, i like to use 150x, as it provides a very sharp image,with key features of the planet such as bands being very detailed.Waiting on my 6mm UWA Skywatcher to bring it to 200 and see how that plays out. Be careful! Don’t magnify jupiter too much, as it will loose much of its features and sharpness. Neptune and Uranus: These two will not impress, but are certainly have a nice colour to them. Even ar high magnifications, such as 300x and 400x, they will look like small discs with color in them.Uranus will look be colored green and Neptune a fainter blue. Mercury About mercury...Havent gotten the chance to observe it ,so the guys will have to inform you about that? Feel free to give your own opinions as to give members a wider source of information to help them observe better ! Cheers and clear skies. Kronos
  19. Got images of Jupiter and Saturn in the morning and a tiny Mars in the evening. Saturn was very low and a fence may have blocked some light. Apparent diameter of Mars is now below 5" and the evening seeing was poor. Used: CPC800, ASI120MC, ADC, processed in Registax6.
  20. Hello fellow astronomers, Proudly announcing the southern hemispheres NZ astronomy main event opening every Sunday from 7.30 pm, from the 7th April. We welcome visitors and can accommodate you in our beautiful, dark, southern town. Please contact dunedin.astronomy@gmail.com Kia Ora! p.s This is Dunedin, New Zealand, not Dunedin, FL!
  21. Early evening on the 1st March gave a brief window in the weather with a pretty stable and clear atmosphere which allowed me to image Jupiter, producing the best image I've managed so far: Of course, by the time the great red spot had rotated into view the high-level winds had started blowing hard again and so there was little point in trying to capture it. Even using a low powered eye piece gave an unstable image. Still, can't complain (too much).
  22. Although it was quite hazy, I decided to get the telescope set up and then try to do some observing of Jupiter. I've always managed to time things poorly before and previously missed out on seeing the GRS. Anyway, half past eight, or there abouts, the GRS was meant to be mid-transit so I took my chance. Polar aligning the mount was a little tricky as Polaris was almost lost in the haze. I couldn't see it naked eye but it popped into view through the polar scope. After some tweaking on the EQ5's suspect bendy bolts I lined up on Jupiter and had a view at 200x (with my 5 mm ep). The haze helped a bit as this helped to calm down the brightness somewhat. The seeing was great and all four visible moons resolved as steady discs. The GRS was clearly visible, nicely salmon pink in colour, and delineated by a thin white band against the main band it nestles in. This main band had a number of white features within it appearing to trail behind the GRS. It was the best view of Jupiter I've had and it was certainly worth the wait - all two years since I got the telescope (which has spent most of its time pointing at faint DSOs).
  23. Morning All, Last night I managed this image of Jupiter and I would appreciate your tips on how to improve it. Equipment was 200P on HEQ5 with ASI120MM and Televue 2.5 powermate. Captured in Firecapture beta. 60 seconds. 512x440. Gain 41. Exposure time 13.65. 72 fps. Gamma 26. Processed in Virtual Dub, Castrator, AS2 and Registax 6. Whilst content with the image for my first with the new camera, I know better will come. My initial thoughts are: 1. Should I have taken a 2 minute AVI or is 4,300 frames enough? 2. Is the main problem I am out of focus and should work more on this next time? 3. I notice a slight onion ring. Have I overdone the sliders? Your advice as always would be most appreciated.
  24. I used to be a very regular poster of observing reports but seventeen months ago I became a dad and this has led to a bit (well more than a bit) of a hiatus.... until now. I did have the scope out last week but this was simply to get my eye back in with views of Jupiter, M81 and M82, the Pleiades... you know, the old favourites. I didn't think to write up as it was a bit of a revision session. To show how out of touch I had become, comet C/2014 Q2 Lovejoy had almost passed me by. Thanks to a quick catch up with some observing posts at SGL, this ended tonight. I set the scope up around half seven and while it cooled down had a quick 15x70 binocular tour, firstly at a few winter open clusters In Casseopeia including my personal favourite NGC 7789 (Caroline's Rose). Then, panning across to the North East of Aries, I couldn't believe how bright Comet Lovejoy looked. I would suggest better than magnitude 4, making it target my number one for the scope. By eight o'clock I was lined up and the view through the 25mm eyepiece (25x) was superb. I could pick up a feint tail pointing North-ish and the nucleus gave away a hint of blue-green that I was not expecting. Jupiter was below par as I was only able to see the two equatorial belts, so I revisited NGC 2392 (the Eskimo nebula). This appeared at its best in the 8mm eyepiece though took longer than usual to find. This is a good one for beginners as it is quite easy to find and has a high surface brightness and so can take a bit of light pollution. Some recent investigations into Asteroid viewing opportunities led me to my two final targets of the night. 10 - Hygeia was beautifully placed close by to 10, 11 and 12 Geminorum and was easy to identify, given it is currently of magnitude 10.6. 3 - Juno was very close to the South West of the head of Hydra. Sadly the position of the telescope meant that my house just obscured it (by less than a degree, I reckon) and so I had to revert to binoculars. Despite this the magnitude 8.2 Asteroid was still possible to identify. A new comet and two additions to the asteroid list. it is good to be back. ____________________________________________________________ Observing Session: Saturday 24th January 2015, 20:00 hrs to 21:50 hrs GMT VLM at Zenith: 4.9 (quite poor transparency, back garden site maximum VLM is 5.4) New - Revisited - Failed
  25. Timelapse of Jupiter's GRS transiting. 23:08 to 00:06 (my phone's battery died), 25-26th of April 2015. The seeing was kinda bad, so that was a bummer, but it's something I've been wanting to do.. I took two 20sec videos, every 2min (very roughly). Aligned the drifting with PiPP. Processed in RegiStax, kept the best 15% out of ~1300 frames (of the combined 2 vids) to create the first frame of the timelapse, and so on with the next pair of vids.. iPhone 4, connected to a 10mm eyepiece + 2x barlow Skywatcher 250px FlexTube I think that the first frame (of the 25 in the timelapse) turned out the best:
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