Recently Browsing 0 members
No registered users viewing this page.
I am a newbie on this forum, this is my first topic here but I would like to show you my recent planetary imaging results. I started to catch the planets with a dedicated planetary camera last month but never thought that a small 4" Maksutov can show such small details. The equpment I used:
SW 102/1300 Maksutov 2.25x Q-turret Barlow lens QHY5L-II color camera EQ-3 GOTO mount All the images were taken on differend countrysides in Hungary. I hope you will like it
Also, please share your images taken with similar OTA, I'd like to learn some tricks from others as well
Jupiter's 15 minutes of rotation. Captured with Firecapture, processed in AS!3, Registax and WinJUPOS (2020.08.21)
Saturn, 1 hours stacked with AS!3, processed in Registax (2020.09.05)
Mars, 3 hours of rotation. Captured with Firecapture, stacked with AS!3, processed in Registax. (2020.08.22)
Mars again, 5 minutes stacked in AS!3, processed in Registax. You can see also Olympus Mons and Arsia Mons next to the terminator (2020.09.05)
Finally, a result of a Hungarian star party where I learned how to use properly my equipment This time I borrowed an ADC for Saturn.
The July edition of the Binocular Sky Newsletter is ready. Astronomical darkness returns to the southern part of the UK this month, and we have:
* Yet another "promising" comet
* Asteroid Ceres
* Neptune and Uranus return
I hope this helps you to fill your evenings (actually, more likely pre-dawn mornings!) enjoyably.
To pick up your free copy, just head over to http://binocularsky.com and click on the Newsletter tab, where you can subscribe (also free, of course) to have it emailed each month, and get archived copies.
Sunday 24th May, from 7:30pm BST, 200p F/5, EQ3-2, diy Onstep Goto.
I've enjoyed watching Venus wane to a thinner & thinner crescent recently, but have never observed Mercury. Having the 2 planets & the Moon only a few degrees apart this week was an opportunity not to be missed. But the gap between the trees & the hill to my West is only about 1 "fist" wide - maybe 40 minutes of observing time. And the late sunset time means Venus would have moved behind the hill before becoming naked-eye visible.
I don't have a permanent setup & can't see Polaris from my patio so I observe from a very rough "polar alignment" & have marked the tripod leg positions on the patio so I don't need to Polar, or Star align every session.
So, having made sure to "Park" the scope at the end of the previous night's session I could just plonk the setup on the marks, "Unpark", "Goto Venus" & lo and behold a tiny crescent Venus appeared about 1 degree from the centre of the the 9x50 Finder in a sky that was clear of cloud but still pure white from the solar glow ! Isn't Goto wonderful ?
Venus was such a beautiful thin 4% crescent with "horns" stretching to the meridian. At first it was shimmering but that must have been a heat plume because a tiny tweak of the focus steadied the image. The seeing was surprisingly good for the low altitude. I enjoyed the view at up to X250 (4mm TMB), before a Goto to Mercury.
Mercury was not visible in the Finder but was a tiny dot in the 32mm Plossl. At higher powers I saw it as a 45% crescent. I know it was about 62% illuminated so the sky must have been too bright for me to see its full extent. I don't claim to have seen any detail - the brightness just reduced steadily from the limb towards the terminator.
I still couldn't see the Moon naked eye so did another Goto & looked in the Finder. Nothing ! But the bright sky must have been fooling my eye because when I forced myself to focus at infinity it popped in sight. The visible crescent was about half the thickness of a crosshair ! In a 20mm Plossl I could see about 6 medium sized faint, ghostly craters along the limb of a 4% crescent.
So in about half an hour I had my first sight of Mercury, & seen my thinnest crescents of Venus & Luna. Isn't this hobby fantastic ? 😀
A two image sequence of Venus taken on 16/04/2020 and 24/04/2020. I plan on adding more images to capture the changing crescent. Telescope: SW Skymax 150 with a TelVue 2x Barlow lens. Camera: Canon 550D with a Baader Fringe Killer filter. Images taken on 640x480 movie crop mode at 60fps. ISO 200 exposure 1/100. Processing: Movies were centred and quality filtered using Pipp and then stacked with Registax. The Giff image was created using GIMP.