Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

sgl_imaging_challenge_banner_solar_25_winners.thumb.jpg.fe4e711c64054f3c9486c752d0bcd6f2.jpg

Search the Community

Showing results for tags 'saturn'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Welcome
    • Welcome
  • Beginners
    • Getting Started General Help and Advice
    • Getting Started Equipment Help and Advice
    • Getting Started With Observing
    • Getting Started With Imaging
  • Community
    • Official SGL Announcements and Events
    • SGL Challenges and Competitions
    • SGL Star Parties
    • Star Parties & Astro Events
    • Celestial Events Heads Up
    • The Astro Lounge
  • Retailers
    • Sponsor Announcements and Offers
    • FLO Clearance Offers
    • Supplier Reviews
  • Astro Classifieds
    • For Sale / Swap
    • Wanted
  • Equipment
  • Observing
  • EEVA (Electronically Enhanced Visual Astronomy)
  • Imaging
  • Science
  • WADAS's WADAS Discussion Forum
  • Beaufort Club's Topics
  • Swindon Stargazers Club's Topics
  • East Midlands Stargazers''s Topics
  • Central Scotland Astro's Topics
  • SGL Cumbrian Skies's Topics
  • Herts, Beds and Bucks Group's Topics
  • SGL East Anglian Group's Topics
  • South Leicester Observers's Topics
  • South Wales Group's Topics
  • SGL Surrey Observers's Topics
  • South Yorkshire Stargazers's Topics
  • Yorkshire Astronomers's Topics
  • Devon and Cornwall's Topics
  • West Midlands's Topics
  • Essex Cloud Dodgers's Topics
  • Essex Cloud Dodgers's New equipment
  • NLO and Planetarium's Topics
  • Astronomical Society of Edinburgh's Discussion
  • Dorset Stargazers's Topics
  • Hairy Stars Club (Comets)'s Tutorials and Guides
  • Hairy Stars Club (Comets)'s General Discussion
  • Hairy Stars Club (Comets)'s Observing Campaigns
  • Hairy Stars Club (Comets)'s Analysis results
  • Hairy Stars Club (Comets)'s Useful Links
  • Pixinsight Users Club's Pixinsight Discussion Forum

Calendars

  • Astro TV
  • Celestial Events
  • SGL Calendar
  • Astro Society Events
  • Star Parties
  • WADAS's Events
  • Beaufort Club's Events
  • Astronomical Society of Edinburgh's Events
  • Dorset Stargazers's Events

Blogs

There are no results to display.

There are no results to display.


Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


AIM


MSN


Website URL


ICQ


Yahoo


Jabber


Skype


Interests


Location

Found 167 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

    Saturn 17Aug2019

    From the album: Solar System Objects

    Saturn 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. Hello Astronomers, On the 12th August, between 18:34 and 19:21 we had a occultation of Saturn by the moon. Of course I couldn't miss out of such a event so I took the day of work and setup my gear so that I could simultaneously capture the event as well as observe it. I had the SCT recording with the 618C while observing it in the dob... literally at high power it looked like a Saturn rise... massive lunar horizon filling the field of view with a big Saturn rising from under it, literally animated and visible slowly moving up... Looked amazing in the eyepiece... Photos or videos don't even come close to how good that looks live in the ep. I had my eye on the eyepiece in the 14" Skywatcher during the occultation and recorded the start and finish times as soon as I noticed them: Occultation Start 18:35.51 AEST Reappearance Start: 19:19.37 AEST Occultation Finish: 19:21.20 AEST I stuffed up the first part video, the covering of Saturn because I still had iCap set to capturing a maximum of 5000 frames left from my planetary imaging, so at 25fps I barely got a 3.5 minute video that stopped just before the actual occultation started... yes I was kicking my self... but at least I watched it... I wasn't going to do the same mistake on the re appearance on the other side... Sharing with you my photos and the video of the event... video is sped up to 400%. Clear Skies. MG Saturn Lunar Occultation 12Aug2019.mov
  5. 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:
  6. Astronomers often describe their first sight of Saturn as being unforgettable. Now I understand why. Few days ago I saw Saturn with my celestron 130mm reflector. It looked so unnaturally beautiful and rather eerie against the starry background. I would really love to know your first experience of seeing Saturn and what impression it left on your mind. Also, it would be really great to know how I can see the divisions and gaps in Saturn's Rings. I only have two eyepieces for now, a 10mm and a 20mm. Should I switch to higher magnification or just look harder with the current eyepieces? Can I even see divisions with a small scope?
  7. 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.
  8. donygp

    20190622_233806

    From the album: Newbie

    Saturn.. CPC1100, Canon 60D, 1.5 min Video, stacked and processed with Registax
  9. 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!
  10. 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
  11. 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.
  12. 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?)
  13. 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
  14. 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.
  15. Last night was the "Virtual Star Party", a live show that lets amateur and professional astronomers show the night sky from their telescopes. If you've never seen it, or missed out on last night's episode, catch it here: Last night I brought Jupiter and Mars to the VSP, and despite it being 3:30am when the show finished for me, I hung on for an extra hour to get my first image of Saturn for 2014! All the planets (and Europa) where shot using the exact same set up, so the image is a good example of their relative sizes currently. Equipment: Meade LX90 8" SCT Meade 2x Shorty Barlow ASI120mc! My scope needs collimation as it was recently repaired and seeing conditions where less than favorable, but no matter how many times I look through my scope, these planets blow me away!
  16. Hi folks, I captured a few shots of Mars and Saturn in the early hours of Monday morning. Unfortunately the Saturn images were waaaay too dark and dim to be useable. Even though they looked bright enough on my laptop screen when I play the avis back now, I realise I needed to bump up the settings significantly before I’d be able to create an image recognisable as Saturn! So anyway, boosted by my attempt earlier in the month with the 2x barlow, I thought I’d have a crack with the 3x. Truthfully I was pushing my luck as the seeing was pretty poor, and very few frames actually captured the round disk of Mars. I believe this explains the ‘mist’ of noise around the planet in the images from both cameras! When I ran the DMK21 version through Registax, I noticed a white splodge on the upper right section of the planet itself. Bit frustrating I thought, but then there’s streetlamps everywhere here and I’m using a £9.99 3x barlow of no known brand, so these things happen. But when I processed the SPC900 version taken about 10 minutes later, it cropped up again, and appeared to have moved a distance relative to the other features on the images, in line with Mars’ rotation. Any ideas? In comparing the cameras, I think these confirm the suspicions I’d formed from the Jupiter images I'd managed earlier in the year, that this camera is very strong in good seeing conditions, and picks up a lot more detail in good seeing than the SPC900 does. However, in poor – average seeing, the SPC900 actually does just as good a job really. I guess ultimately any equipment we have is going to be limited by the atmosphere we have to look through... Can't wait to have another crack at these two fascinating targets, hopefully in better seeing, and when I get my settings right!
  17. Getting close to ending the season for observing. Not a lot done this year as I'm still recovering from surgery and my 15 year old has been helping quite a bit. These are tow from yesterday. Sky was clear and reasonably good seeing. Jupiter was rushed before it dissappeared behind a tall hedge and Saturn is so low. Nevertheless, I think this are worth sharing here :-) CPC800 & QHY5L-II. >1500 frames each processed with PIPP, AS2! and PS5. Colour could be better but I find that improving colour sometimes leads to some detail being lost. Comments much welcome!!!
  18. Saturn is jumping from house roof to house roof these day in the UK latitudes. I managed to capture 5000 frames last night using the CPC800 w/wedge, QHY5L-II C; and processed these with PIPP (kept 25%), Autostakkert2! with Drizzle 30 and a little PS. Can I make it better? I think the C8 is delivering good here but could argue that better collimation would make it better. However, my star tests are 'good' at 200x. For the general UK conditions yesterday I think this is good? Tomorrow we have thunderstorms...so, everything will go back inside.
  19. 21 of June 2017 / 22h30 UTC+01:00 / Stargazing Conditions: 88% So, I crammed all of my new acquired stuff together and went to the darkest place I could find near my town. It's a mere 5 minute drive from my home. As I set everything up, I tried to wait for 20-30 minutes to give the 'scope a chance to acclimatize but I really couldn't! Jupiter I looked west south west to find Jupiter, pointed my finderscope at it and I was amazed by how clear the image from the 'scope was!! I had a 5 minute stare through my 25mm BST eyepiece where I could distinctly see the two belts, the north and south equatorial belt. As clearly as the belts were also three of its moons were, namely Callisto, Europa and Io, although Europa was quite close to Jupiter. The color was also great and the view, simply mesmerizing! I then switched to the 15mm BST eyepiece. First I was a little, let's say disappointed, but not that strong, by the magnification, and immediatly switched to the 8mm BST. To my surprise I wasn't convinced by the view either... So I decided to get back to the 25mm and calm down and enjoy the view as I clearly was getting hasty. As I started over, I remembered some words from a friend of mine who told me that watching the stars often comes down to 50% of actually seeing the stars and 50% imagination and concentration. So I tried the 15mm a second time and... I was hooked. I could now clearly see eight different colors and belts! I'm not quite sure what it was I saw, except the north and south equatorial belt, but I will have a look at some Jupiter maps and educate myself about the planet's surface. This will help in better understanding and watching next time, the case given that the seeing is as clear as it was that night. With the 15mm eyepiece Europa was now very distinct from Jupiter. I couldn't manage to get more detail out of the 8mm eyepiece, everything just got a tad bigger and a little fainter if my impressions were right. After good half an hour of watching the delightful planet and its moons I sat down and searched for Saturn, which was south not very high above the horizon. Saturn I switched back to the 25mm eyepiece, pointed my viewfinder at Saturn and peaked through the eyepiece. What a marvel! I clearly could see some colors on the surface and easily distinct the ring from the planet itself. As I switched over to the 15mm eyepiece, the separations on the planet's surface became a tad clearer and the ring/planet separation obviously bigger. I encountered the same problem as before of not knowing what I was looking at, which bothered me a little. I have to do a little homework here and get myself started with some fancy vocabulary. Milky Way All in all it was a marvelous first light experience and I clearly have to learn the stuff I'm looking at, but I think that's just me and my endless thirst for knowing things. I randomly gazed through the skies at the end, beeing absolutely overwhelmed by everything I saw. Furthermore, I simply was flabbergasted when I ran across the milky way in the north east... There were so many stars I couldn't see with my bare eye, but only with the 'scope (which made aiming with the finderscope a nightmare... How do you guys do that really?!). I'm glad I acquired the Skywatcher Skyliner 200P with the eyepieces. It is one of the best things I got myself and I think I will have a lot of fun with it and furthermore learn so many new things. Thanks for reading, Abe
  20. Hello all, Sharing with you my latest Saturn image. This if imaged at f33 on my 8SE using Skyris618C. Stacked in AS3, drizzle 1.5X, derotated in WinJupos and processed in PS. The most interesting feature is, what looks like, a storm developing near the northern polar region. Clear skies.
  21. It's been hectic at work and I've not managed to get out to observe anything since the middle of last month. Yesterday was clear but work and the need for sleep kept me in. I went to work today and promised myself that if the weather was good I was going out tonight....I went running a bit after work, eat with my 14 year old, did a bit of homework and watched a little world cup with him. Looked out the bedroom window to check the sky and observed it's full moon today and she looks fantastic! Saturn is now due south and is not going higher than 33 degree above the horizon. Good from my garden location. So I opened by bike shelter (a poor mans obs) and checked all was fine with the CPC800. Turned it on, waited for the GPS, popped a 25mm XCEL, slewed close to mars and did a solar system align on it. Once this was completed I slewed immediately to Saturn. Got it centered in the field of view and popped a 12mm XCEL. What I saw was awesome: Rings, clear Cassini division, some surface detail! Wow! I've never had this good conditions for Saturn. Often, atmospheric turbulence would allow a clearer view and the detail and contrast would improve allowing more detail than I've ever seen using the C8 to get through. It was a fantastic session and I'm really glad I made myself that promise this morning. I even got my other half to come out for a peek and she stayed glued to the eyepiece for quite sometime! Very pleased.
  22. Two years I've been actively learning and pursuing my love of astronomy (well 18 months, as I spent six months in Australia). In that time I've taught myself, gleaned knowledge from our collective friend Google and practiced when the clouds let me! So much more to learn, refine, practice and enjoy. I have photographed Uranus and Venus, but only have a single photo of each. Nothing quite gets the attention and thus demonstrates evolution quite as much as Jupiter and Saturn. The first photo on both rows was produced by a Nikon D300 DSLR,, the second photo in each row was taken using the Orion Starshoot Colour Solar Imager IV, a 15 FPS peak beginners cam, that offered me my first clues as to the details you can see. The last two Saturn photos are taken on the ASI120mc camera, practice in processing and improved conditions lead to the last evolution with Saturn. The 3rd Jupiter from the left was taken with the Orion Starshoot again, having learned more about processing, and the final Jupiter was taken using the ASI120mc at the start of this week, and is a single frame from a short 22 frame animation of Jupiter and the moon Callisto. Each photo was taken through my Meade LX90 8" SCT, and each photo, at the time, delighted me. Still, I dream of taking better photos of both targets, and for the first time ever, Mars!
  23. Hi there, Recenly I have finally figured out how to attach my Prestigio webcam to a telescope properly and tried my very first planetary imaging. For the following set of images, I used my 12" dobsonian, because my 4.5" can't collect enough light for me insensitive webcam, so tracking was a no-no. What do you think?
  24. Observation 11 July 2017 Date: 11th July 2017 @ 20:50 – 22:30AEST Location: Backyard Equipment: 14” Skywatcher GOTO Dobsonian, Televue 31mm Nagler T5 , Televue 17mm Ethos, Televue 11mm Nagler T6, Celestron 5mm, LV 7mm, Televue 2X Powermate, Baader Neodymium, Baader Contrast Booster, Circular polarizer. Tonight is looking like it is a good night to do some observing and try out the new shroud for the Dobsonian. The Seeing was quite stable, there were clouds flowing south to north direction but not so many as to ruin any observing. The moon is just the second day past full moon phase and so still lights up the night sky, Saturn and Jupiter are in the sky along with the moon so knowing that I will not be looking at any DSO I decided to have a look at these three objects. Jupiter: Jupiter was the first object on the agenda to view since it is already getting low in the western horizon, still 40 or so degrees but knowing that the best views are when the planets are highest in the sky, I didn’t want to leave it any later. The view was a little hazy, the highest magnification where Jupiter looked OK was at max about 150X-235X. The GRS was visible just past the center of the SEB. To see it quite clearly I still had to wait for the fleeting moments of clarity, but it was constantly visible. I didn’t see any fine intricate details with in cloud bands as in the past, and honestly even the polar cap shading was a challenge. Definitely no shadows from any moons on the Globe. There were all 4 Galilean moons visible. It was nice to revisit Jupiter as it is moving further away from us, even if the view was not even close to the best views I have experienced while observing Jupiter in the past. Saturn: Saturn was the next in the cue, as it was right above head, near zenith, I was expecting to see Saturn more clearly than Jupiter. Initially Saturn was more stable, and the Cassini division was visible on the edges but not the best I have seen to date, even with the 8” SCT. As I was adjusting focus on Saturn, when defocussing it a bit further out, I noticed that Saturn was defocussing asymmetrically, only slightly but asymmetrically so I knew that my collimation must be slightly out. I adjusted the collimation using a glass combination to give me 660X magnification until Saturn was defocussing symmetrically. At 660X Saturn was better than before collimation but still soft, so I dropped the magnification to 300X and the view was crisp and detailed, collimation was a major improvement. I stacked the Neodymium and contrast booster filters on to the eyepiece and the view was breath taking. During the moments of best stability and clarity, the Cassini division in the rings was visible nearly all the way around, became hard to see behind and in front of the planet. The rings in front of the globe were easily visible/distinguishable, along with the darkening on the globe, shadow cast by the rings on to the atmosphere. The rings were visible poking above the globe from behind, this is a good time to see Saturn with it’s rings fully open facing toward us. The globe showed darker but still quite pale cloud bands, one just above the ring and the second more subtle shading about ¾ of the way toward the pole. There were 5 moons visible, Titan, just barely visible Enceladus, faint Dione and Thehys and Rhea. The best view of Saturn was at 300X-300X (11mm Nagler with 2X PM and 5mm Celestron X-Cel) magnification, the scale of Saturn was quite big with clear detail easily visible. Magnifying 470X was ok but obviously softer. Sure the planet was visibly bigger but I still preferred the view at 300X. Moon: The moon, being just past full moon, only showed craters at one of the edges, but using the 31mm Nagler T5 or the 17mm Ethos, with the polarizer still looked amazing. The full face of the moon was visible at one time, the 17mm Ethos magnifying it so much and with the 100 degrees AFOV, I had to look around to see the edge of the moon… it was like looking out of a space craft window, it was awesome. The 31mm Nagler showed the whole face magnified a bit less and while using both of the eyepieces, having the Polarizer turned down to the dimmest level revealed the moon ejecta streams, flat craters and Maria on the surface as well as bright spots dotted throughout the landscape, looking almost looking like city lights. The Polarizer has to be turned all the way to the darkest level with the 14” mirror since without it is so bright that looking at it is actually quite uncomfortable. Even with the Polarizer, I think I could have added a ND filter to bring the intensity a little bit more. Sure the most contrasty views where you can see a lot of detail in the craters is during a phase, but looking at the full, or near full, moon looks beautiful when adding the extra constant using darkening filters, bringing out the dark shading. Overall the night of viewing was very rewarding, especially with the great views of Saturn. The shroud seems to have done the trick at keeping the light path clear of any stray light, but the best part I found was that with the 3 fans blowing from behind the primary mirror, there was a slight, very slight air flow out of the front of the Dobsonian. I’m hoping that this air flow will keep any dew from settling onto the primary or more importantly the secondary. A couple of months ago I took the 14” SW to one of my favourite dark sites in the mountains, but my observing night was cut very shot, very quickly due to dew fogging out my secondary, even when cleaning it with lens cleaner, the dew was already building up as soon as I took my hand away. I have some dichrome that I’m planning to add to the secondary as a spiral on the back to create a dew heating system, but whether I’ll do that will depend on if the secondary will get covered in dew in a future observing trip with the shroud on while the back fans are moving air out. Another things I have noticed tonight is that the order in which the Neodymium and Contrast booster filters are stacked makes a difference to how the view looked. Initially while observing Saturn, when I added the two filter, the view was not any more stable than when not using any filters, only slightly dimmer. But when reversing the order of the filters, the view stabilised noticeably, literally the difference was between OK and WOW. I would think that each filter cuts out a certain wavelength of light and passes on the rest, and so it shouldn’t matter what order they are stacked. I repeated the experiment but flipping the filters and same result, one way was not better than with no filters, but the other way it was stable and razor sharp???!!!! Does anyone have an explanation to this phenomenon? Thanks for reading, Clear Skies.
  25. I'm starting to image Saturn in the wee hours of the morning when the clouds part. Early days yet but it looks promising. Taken with the Celestron Nexstar 8i, focal extension tubes, ZWO ASI224MC with UV/IR cut filter. A 5 minute video was taken. PIPP for getting the better 5000 frames from a 10000+ frame video, then 1000 of the best frames stacked in Autostakkert. Registax for wavelets and the final edit in PaintDotNet.
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.