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Found 101 results

  1. Hi guys, 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.
  2. 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 ?
  3. From the album: Planetary work

    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.

    © D Elijah

  4. spaceman_spiff

    Venus

    From the album: Planetary work

    Stacked image of Venus taken on 16/04/2020. Image generated from 2000 640x480 frames taken at 60fps. Telescope: Skymax 150 Maksutov Telescope with a TeleView 2x barlow giving a focal length of about 3600mm Camera: Canon 550D in 640x480 center crop mode. ISO 800 and 1/800s exposure. Video converted and processed using Pipp and then Registax.

    © D Elijah

  5. Hi everyone, This is my first post in SGL and I must say I'm really excited about joining this wonderful community and I must thank you all for all the help and advice provided here. I recently bought a Skywatcher Heritage 130 as my first scope. I have a couple of (weird) questions and I would really appreciate if you could answer them: First of all, is there a correct way of handling this telescope (rotating and tilting) while looking at the sky? I'm asking this because sometimes I find myself grabbing it from the back of the tube where the screws are to tilt it, and I'm afraid this can move the adjusting screws and make me collimate the mirrors more frequently. Also is it OK to rotate it by grabbing the extension frame or can this also misalign the secondary mirror? Sorry for this questions but since the design of this scope is so "open" it got me thinking; The scope came with the locking screws really loose. When I say loose I mean that whenever I touch them accidentally they move a lot and when I move the scope from one place to another I can feel them shaking. Is this OK? I've been observing Venus quite a lot, but I find it really difficult to clearly see it's phases and disc without fuzziness. I'm observing from my balcony with clear skies but I live in a very light polluted area. Also I've been mainly observing it between 28º and 20º altitude (used Stellarium to get these values), except for one time when I tried to observe it before being completely dark and I was able to see it at ~38º altitude. This was actually the time where I could see the disc with more detail and very little fuzziness. Under these conditions is this normal or am I doing something wrong? During my observation sessions, I can occasionally see some objects moving fast on my field of view but I can follow them when using my 25mm eyepiece. They are like faint stars (some brighter than others) moving in a straight line trajectory. What could they be? Satellites? Is there any good source of satellite information so I can confirm these sightings when I have them? I will leave here my first photos of the moon taken a couple of weeks ago with the telescope using the 25mm and 10mm pieces that came with it, a lunar filter and my Nokia 7 plus (handheld). I know they suck but it was an achievement for me that made me really happy Sorry for the long boring questions. Thanks!
  6. Hey there. I am curious, as to what media or software you guys are using, in terms of knowing when certain alignments, conjunctions or events happen? I actually had a clear sky, a couple of days ago, when the conjunction of Venus and the Pleiades happened, but I didn't know until the day after. I even thought: "what a nice clear sky, but naaah, the moon is way too bright tonight" (I mostly shoot galaxies these days). So I am actually a bit bummed at missing that. So, what good sources are you guys using? I am mostly using stellarium, reading a bit on the forum here, and looking into SkySafari Pro (will that give any clues?). Or is it simply by chance figuring it out Thanks in advance.
  7. Just a quick cropped image of the Venus/Pleiades conjunction with Hyades looking on by moonlight from last night. Pentax K5 / Pentax 12-24mm lens / 1.4x rear converter / Exp. 30secs @f10 / iso 500 Ioptron tracker at siderial.
  8. 30+ exposures between 1 and 60 seconds with an ASI533MC_Pro and WO61 refractor. The huge dynamic range makes this a real challenge lol
  9. I snapped a few photographs of the Venus on 28th evening and surprisingly noticed a circular rainbow like pattern around the Venus. I'm attaching a photo of the Venus and the moon together and another of the Venus with its blown up image as an inset. The Venus appears too small in the photo with the Moon appearing on the left side but, this pattern can still be observed when the image is blown up. I had snapped such photos of Venus earlier and have also done so on the next day but, none of those showed this peculiar/accidental feature. Could any of you please inspect the photos and let me know weather it's really a rainbow around the Venus or not.
  10. Dear all, yesterday evening after doing the sketch of the three-day old moon, we had a wonderful twilight scene with Venus and the Moon over here. So I did a pastel sketch how I recalled it afterwards: Clear skies! Achim
  11. With the extra time I have at the moment, and the weather being so good, I’ve been catching up on a few jobs I’ve been meaning to do. One of these is the re-spotting and recollimation of the mirror on my newt. I found I didn’t have any ring binder re-enforcers but made something similar by hole punching a self-adhesive label and carefully cutting out. With the collimation done and the sun setting I was keen to see whether my time had been well spent. I think it was November when I last had a proper evening of astro, my efforts earlier this week got hazed out, so I was looking forward to this! First up was Venus in the early twilight. Using my binoviewers and a couple of filters in combination (a ND0.9 and the baader neodinium) I got some encouragement with some good sharp views. I could almost swear I could see a little detail but I’m sure that was just wishful thinking. I also tried a UHC and O111 filters as I had some, but they didn’t show anything better. In fact, the O111 had the peculiar effect that after a few minutes observing a bright green target, when I came to look up at Venus by eye, it appeared a bright and angry orange colour, like Arcturus on steroids. After Venus I chose M45 and then the open clusters in Auriga and this was where my earlier work really showed its value. So many pin sharp little stars, far more than I recall when I last viewed these targets. I always feel surprised at how good these targets are though with M37 and 38 the best of them, being a bit more compact. I also had my new TS80mm frac out to see what I could catch and to compare views of the same targets. All were pleasing, albeit smaller in scale. I was also glad to be able to spot M65 and 66 in Leo. Obviously not as good as in the bigger newt which will show the triplet of galaxies in the same field. Still, I’m happy to know I can pick those up in my local skies with this little scope. It bodes well for darker sky trips in future. I followed up with some globs and ended with M13 in Hercules. Always a favourite, but by now a thin film of ice was settling on the scopes and my chair so it was time to call it a night. I’ve been really cheerful today as a result of getting some scope time in, which just shows the value of a good hobby in times like these. Thanks for reading.
  12. Hello I recently purchased a new celestron telescope and set it up last night to use for the first time. I live in UK, around 8/9pm-ish I took my telescope outside to view Venus in the western sky as it was v bright, perfect opportunity. After finding Venus and increasing the focus I realised that there was something like a large black circle in the centre of the bright blue/white ring of light. Before focussing, it appeared to be just v bright light. I am wondering if anyone can explain to me why this black circle appeared on / in front of Venus. I thought it looked like a moon, which is obviously incorrect but it looked that way. Is it possibly sulphuric clouds of Venus absorbing light? Any information/help is much appreciated happy observing, all!
  13. Hi All, I took this picture by coincidence while trying to take photo of a single cloud on the sky. Is this Venus? Thanks.
  14. 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
  15. Another image of the Moon, Venus & Spica yesterday morning. Pentax K5 / PENTAX-DA 12-24mm F4 ED AL [IF] lens @24mm / f9 / iso 1600 / 5 sec exp.
  16. At around 14.35 GMT today I observed Venus, Mercury and Jupiter, with my 127mm Mak SLT GoTo. Venus was a large, very thin crescent, trembly in poor seeing. Mercury was easy to see once I got my eye in, and Jupiter was easier to pick out with a red filter. Mercury and Jupiter are now not far apart. (7min RA 3 deg Dec.) The visibility of Mercury seems dependent on atmospheric clarity. On several days recently I looked for it but could not see it.
  17. Aided by GoTo, I observed Venus in daylight this afternoon. It is only a few days from inferior conjunction (26th) and appears as a large thin crescent. It's in an unfavorable position for Northern nocturnal observers and appeared almost below the Sun. I could not see Mercury (which should have been accessible). And before you comment, I checked carefully where the 127mm Mak was pointing before putting my eye to the eyepiece.?
  18. As it was a nice sunny day I tried a little WL solar viewing, but as it was just like looking like a ginormous white snooker ball, I decided to switch to Venus (with the help of my trusty goto mount). After looking at it visually with my C8 SCT, I decided to have a go at imaging it. The below image is the best result I got out of 3,000 images with my ZWO ASI120 mc, with a light blue filter fitted (not that you'd notice with the colour of Venus). Seeing was pants, but the image came out much better than expected. Used Registax, then PS to crop & alter curves a little. Flipped image for correct orientation.
  19. After over two weeks of rain and cloud, I finally get a clear night, and I take full advantage of it! As some of you know, I've been chasing after details on Venus for quite a while now, but I've been shy about shelling out the big bucks to get the necessary filters. Ca-K and UV filters can get pricey, so I chose to be creative and try imaging Venus with my Meade Series 4000 Variable Polarizing Filter to cut some of the glare. In the past, I've been able to see some evidence of detail visually with the filter, but I was never 100% sure of whether what I was seeing was wishful thinking (or "seeing") or actual cloud features. Last evening answered my questions - the filter DOES allow you to see detail on Venus, through a 127mm Mak, even at mags approaching 170X. I could easily see detail near the central region of the onion planet from my 25mm EP right down to my 9mm. And what's more, I was able to image using the filter, pulling out amazing detail with processing in Registax 6 using video shot on my Orion Deep Space Cam II (the analog version)! Here is the result: I was floored at the result! ??? NEW IMAGE, ADDED 3 June: Here is another image from the same video, processed in Registax 6 to bring out darker features Cheers, Reggie
  20. Venus 19/02/2017 18:46 (61.490 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/
  21. Vicky050373

    Venus 20.04.2018

    From the album: Lunar and Planetary Images

    Venus imaged during the afternoon of 20.04.2018. Although imaged in broad daylight, the very short exposures required, just a couple of miliseconds, means the sky looks black. Such short exposures are required to prevent the image over exposing as Venus is so bright. Celestron 8SE and QHY5L-II monochrome camera with Celestron LX 2 x barlow. AVI stacked in Registax with minor adjustments in wavelets. No post-processing other than a slight crop.

    © vicky050373

  22. Here are some more images I took of the Venus/Uranus conjunction in addition to the one already posted. And to think, I was wondering what that pesky star was above Venus! Reggie
  23. Here is a single two-second exposure of the close conjunction of Venus (the brighter object on the left) and Uranus (the fainter, bluish-green object to the right) at ISO 1600. It is a prime focus image taken through my 127mm Maksutov-Cassegrain telescope about an hour after sunset. A striking pair visible in a telescopic view! Reggie
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