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Found 521 results

  1. The visibility tonight was dreadful: hazy moon, and the only star I could see (barely) was Sirius. However, I had my 9.25" Evolution (with x0.67 reducer) out to play to try out controlling over ASCOM and also fixed up a ZWO ASI120MM with an infra-red filter (Christmas present from my daughter.) Focusing was next-to impossible and single lights looked appalling. But 500 of them later, and after stacking in Nebulosity, I got this... the first Moon image I have ever processed and posted. I was amazed how good this ended up given the poor conditions (which must improve some day?) Thanks for looking, AK
  2. Here is a real-time video of the Moon/Aldebaran occultation last night (March 4). Aldebaran disappears around the 38s mark. Shot on my Sony Handycam. Soundtrack is an original composition called "dark energy" from my upcoming space music album, THE FALSE DAWN, due out on the vernal equinox! Enjoy! Reggie
  3. so i just went out today and i took some photos of the moon through my telescope. Here are the results! http://imgur.com/dh8P5jL
  4. Getting clear skies on the day your Mak 150 arrives is very very rare. That happened to me yesterday. No dew shield it hasn't arrived yet. The 150 sits nicely on the AZ4 with steel legs. I used a combination of the 28mm EP supplied and my 15,12,8,6. EP's. All performed well apart from the 8mm which I had been warned about (thanks Jules). This wil be replaced by a 10mm Vixen SLV. spent a lot of time getting to know the Mak and spent time swopping between the EP's. I am delighted with the scope crisp clear views of the moon,even though the seeing was not good. During dusk with that light blue haze I waited to see Jupiter. Even with the sun going down and the only two objects to be seem with the naked eye Moon and Jupiter I was more than surprised to get a very good view of her.mThree moons in a line to the right. The Mak magnify the rotation speed of earth and targets move very quickly across the field of view. Jupiter looked like a shepherd last night with three little lambs all following in a line. conclusion. A great scope you can get up close and personal with your targets. Easy to handle and light to move around. If you want duration in observing a tracking mount is a must. ( on my hit list) thanks for reading and here's a couple of shots just with the I Pod on the EP. Garry
  5. Hi. I am new to astrophotography and want to start using an eyepiece camera with my Celestron eq130. Can anyone recommend a decent camera for a small budget, say £50. Also, do these type of cameras just fit into the telescope, or do they fit into a Barlow lens ??
  6. Had a brief but very enjoyable observing session with my two little ones (son, 5 and daughter, 61/2). Both were amazed to see the bands and the GRS on Jupiter, and the 'lumps and bumps' on the Moon, and I was really impressed with the crisp clear views from my little Mak 90 with a 15mm BST Starguider (and its Virtuoso mount is so easy to set up). I switched the 15mm BST for the supplied 10mm Skywatcher eyepiece to enlarge the view and the drop in quality was quite noticeable. So I took it out and barlowed the 15mm with a Baader 2.25x and Jupiter was just great to observe, large enough to be interesting for the children and clear enough to see all its main features. After we came in I fired up Stellarium to show them what we'd just seen - they had both picked up on the four moons we could see - and they immediately recognised everything and also the change in orientation when I switched Stellarium's oculars plug-in on. My daughter wanted to know the names of the moons too. They both wanted to know why no-one lived there, so that took a while (mental note - I must show them the Voyager documentary that explains how far away the outer planets are, and de Grasse Tyson's Cosmos episode with the GRS in it). Got them to bed, had something to eat and I've only now come in from observing Jupiter - because the clouds are rolling in - and while the seeing was intermittently fairly hazy and very clear, it was well worth waiting for Jupiter to be higher in the sky - the clear patches really were just that. At the moment I'm post-op and can't do any heavy lifting, hence using the Mak rather than my 150PDS/HEQ5, but the little Mak is rapidly becoming my preferred scope, especially for quick sessions and definitely when the youngsters join in. Here's to more clear (ish) skies!
  7. Hi all after fixing the issue of not get focus with this test webcam ( rather try in to prove i could use any webcam to a friend) i did not have enough inwards travel with the low profile 10/1 focuser so my fix was to cut the threaded part on the web cam adapter lightly sanded it smoothed clean and hot glued in to place fingers crossed and all the rest . you can see the video i took these from in the video astronomy section here on sgl its not pretty as the photo shows but it works and it records well mainly for moon drift videos for my self ,now i can grab stills from these videos gave it ago and got these lightly edited as they are j pegs and full of noise as you would expect but i like them and i wonder if you do the web cam will be rehoused in a little box i have just for the job will update that next time clear skies Pat
  8. taken with my ed80,2xed barlow,450d, iso 400, 85 frames staxed with regi. thanks for looking,clear skys,charl
  9. not the best of nights for moon imaging for me ,took 200 frames and could only use 14 frames due to cloud being in nearly every shot.so a very soft looking moon. taken with ed80,2xed barlow,450d,from obsy room window. thanks for looking clear skys,charl. ps before the moon rose the seeing was very good, i saw the orion neb in near full daylight 6pm thats a first for me in over 40years of skywatching, heres a single frame taken on full auto with my sony alpha.
  10. I had a quick session with my new to me 20x80 Opticron, Japanese made binos tonight. I have them tripod mounted using a trigger grip ball head which works very well. Lovely views of M42, trapezium split nicely and surprisingly a gentle green tint to the nebula. Anyway, the crescent moon was also looking lovely with prominent earthshine. There was a fair amount of CA as is to be expected, but still a nice sharp view along the terminator. Three shots here, all hand held at the binos. I made sure I focused the binos using my glasses first, otherwise the images are obviously out of focus! First one was exposed for the earthshine, the second is converted to mono to get rid of the CA and the third is exposed for the terminator. All tweaked on the phone using PS Express. Quite pleased with the results, given the inappropriateness for imaging of the kit used ?
  11. Hi all, after the clouds vanished later in the evening, I set up the 10" Dobsonian in the courtyard and went for a lunar sketch. This time I had to start with 10mm eyepiece since the seeing wasn't proper in the beginning. Later on I could change to 5mm giving 250x. So here's my sketch of Mare Nectaris region: Telescope: Martini 10" f/5 Dobsonian Eyepieces: 10mm Celestron X-cel and 5mm Skywatcher Planetary Date & Time: Dec 30th, 2015 / 0015-0130 CET Place: home courtyard, Dusseldorf region, Germany Technique: Koh-i-noor chalk and charcoal pencils on black Daler Rowney Ebony sketching paper Lunar age: 19 days Hope you enjoy it! Clear skies! Achim
  12. taken with my trusty ED80,2XED barlow,450d, 60 frames staxed with regi, iso 400. thanks for looking, clear skys,charl. ps this looks best in full size. mono 120 frames.
  13. In fact first lunar images for many, many months. conditions not ideal - seeing was poor I'd rate it on 2-3 out of 5 at best and of course the Moon was 98% full - it did make imaging the terminator quite challenging. 'Nuff said - here's a few pics - C11 @ f10 DFK21AU camera 60fps @ approx 1/75ths' Each pic is best 10% of 3600 frames stacked in AS!2 and sharpened in Registax & Photoshop. No darks, bias or flats - I'm still in the process of setting up the scope - so these can be considered as 'experimental' images. I would have loved to have gone with the x2 Barlow, but seeing was not good enough. Next challenge - is to mosaic the terminator
  14. Came across a link to this on Facebook. I believe these are recently released images but regardless, quite amazing and the first time I've seen them. https://www.flickr.com/photos/projectapolloarchive/albums I particularly liked this one, which I assume is the first image taken of the earth rise from Apollo 8, before they grabbed a colour camera. Iconic image, Apollo 8 is one of my favourites.
  15. The "seeing" wasn't too bad when I started out this image but towards the end of the 3rd and into the 4th pane things got a bit wobbly :-) I read up on the features I captured and originally thought of Sailing the Seven Seas....until I found two more :-( (astronomical union messing a perfectly good pun...shouldn't be allowed - personally I blame von Humboldt) :-) Scope: Altair 115mm / Camera: ASI120MC / about 2500 frames per pane (4) David
  16. Hi everyone, Here's my submission... A sketch (old school, I know...) made on Friday, 27 October. I drew the sketch using my 20 year-old Meade LX10(!), with a 12.4 Super Plossl EP. The sketch was made with white Conte crayons on a black paper A3 sketch book. I'm way, way out of practice, having only recently dusted off my scopes after a long hiatus, so looking forward much more observing, and much more sketching.
  17. 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.
  18. Took this just now having just discovered how to put the camera on a scope
  19. GIFV version - http://i.imgur.com/71aFPTQ.gifv My first try at time-lapsing. The Moon & Aldebaran Comparison between Aldebaran and The Sun Connected my iPhone to a 25mm eyepiece (Skywatcher 10") with a DIY adapter.Took a picture about every 30 seconds for something like 20 minutes (probably 18).Aligned each frame in Photoshop (since I couldn't figure out how to let PiPP align it on the star), and cropped a bit.It was taken under a very thin layer of fine clouds, although there's one frame in there where the clouds decided to get thick.
  20. hello Looking at the Copernicus crater, much like Alfred Wegener Continental Drift for something caught my attention. This crater is one of my favorite targets with the 625 mm. A force to scrutinize it in any seams rather strange things struck me. It seemed to me to see a kind of symmetry ... not symmetrical. Thus the bump on the left above a crater in the walls seemed relative to the center to enter the hollow opposite. So I draws a line between all these elements. I even tried it out with other notable points of the edges of the crater and all these lines intersect at almost the same place. You tell me hazard or center of the circle formed by the crater ... Yes, but we must not push the plug too far... You will also tell me that there are other elements that connecting them do not cross the same place, or it's a bit normal too. But the most extraordinary is that going to see the place on the website of RSO (http://target.lroc.asu.edu/q3/) where lines intersect, there is a very strange thing. Zooming I say "not bad like that!" it reminds me of the famous 'face' on Mars. I think that conclusion can be deduced that : look carefully you can always find something very surprising and curious about the messages left by aliens. You think what you want, I infer that the aliens have a lot of humor, and they are among us for some time, at least since 1985, preparing millions of people to get used to their appearance. Best regards. Luc CATHALA PS : Excuse my English is google translation
  21. Well here it is. Am almost too embarassed to put it up but I won't learn anything if I don't I suppose. The original images were captured on a 2MP web cam using SnapCap. The 1000 frame avi was then processed in Registax using best 85%. Finished off in Photoshop. Be gentle with me guys.
  22. Hello I was able to enjoy a few minutes of very good conditions to make Theophilus After regular degradation forced me to work more and more in infrared until abandonment. Theophilus shows the capacities of a large diameter in good condition very rarely available. The following images are close-ups of craters almost never photographed so precisely by amateurs except Endymion. Most of their images were taken by satellites. The favorable libration made them most accessible. I hope you will like. Clear skies. Luc CATHALA
  23. Good Day to you all, I just wanted to share my first real attempt at photographing the Moon. This image is the result of a stack of 50 or so photos processed using Registax. I used my Nikon dslr and a telephoto lens. I would gladly welcome your critique. The image has been optimized for web, the original was over 60mb in size. Thank you Ben
  24. Good Morning, Last night I decided to get myself off the sofa and collect moon images for stacking. It was around 01:00 and the Moon was 3 hours after moon - rise. The viability was OK. Not perfect but I wanted data. Nikon d7200, Sigma 150-600mm Sport +1.4TC gave me a focal length of 1260mm. I was limited to f/9 160sec ISO 1OO. I know that the lens is at its sharpest at f/11 but the image seemed too dark at this aperture. I took around 100 exposures and used Asrostakkert for stacking. The image posted here is optimised for web viewing at a reduced resolution. Please let me know what you think ?
  25. I haven't had too many chances to get out this year due to the clouds and wildfires burning in western N. Carolina. I've been working at trying to get some data processed and I must have forgot how to process Jupiter . I was using pipp , AS2 and reg.6 and having a really hard go at it. I guess time will tell the tale if I totally forgot how to rgb align and balance but , it's a start for the year. Enjoy and have a Happy Easter.
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