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Showing content with the highest reputation on 19/12/15 in all areas

  1. 9 points
    5x 900 sec subs in Ha,R,G and B Processed with PixInsight using the NBRGB combine script. I am reasonably pleased but expected more when looking at my Ha data. Comments are welcome.
  2. 8 points
    My routine 5s exposure to record the outer moons of Uranus in Aquarius via my Lodestar camera on my Classic Meade 30cm SCT - fainter Miranda and Ariel lost in glare of planet. Moon ID via Cartes du Ciel - data on image. Nytecam
  3. 8 points
    Currently wellplaced to the south in Cetus is one of the first variable stars to be discovered in antiquity eg Mira = omicron Ceti "long period VS". It's currently about minimum light [AAVSO] of m9.2 but due to it near IR radiation as a red giant on my unfiltered 20s image it appears grossly brighter by many mags and tinted bluish. Visually it appears as bright as the marked star to the left. A degree or so west in Quasar Q0214-033 @ m16.8 hiding close to a mag 13.5 star @ distance of 3.7BLY - see inset. The captured light began its journey when primative life began on Earth ! Two faint gx to the SW, Nytecam
  4. 7 points
    A picture captured by the Lunar Reconnaissance Orbiter. Since I didn't take it, I've put it in the A.lounge and not the Solar/Lunar Imaging bit. Pretty lovely sight I say. Merry Christmas to all SGL members . Ron.
  5. 6 points
    Ever ongoing project... the Orion Nebula This is a LRGB combination with about 2 hrs of Ha-data blended in with the luminance. Still needs a lot of work but I think I´m getting there! I could have pulled even more of that dusty stuff out but I wanted to keep a fairly natural look to the processing. And there ARE limitations to what can be done with an uncooled DSLR. Canon EOS 1100D (astromod) Canon EF 300/4L IS HEQ5 Pro Orion Autoguider About 5 hours + 2 hours of Ha: Colour: 28*120s + 39*180s + 27*300s and then a round of 6-10 second exposures for the core. Ha: 23*600s+1*900s
  6. 6 points
    Or at least i think it is... is been so long since i last imaged anything! About 6 months, which is crazy. Not even due to weather, just a combination of technical difficulties, work and travelling. As you can imagine it was great to do some imaging again! I modded my mount earlier in the year and there were some major issues, but now things have been ironed out i decided to try some half hour exposures which went better than expected really need to get my hands on a Ha filter now and i will be sorted. I hope i have kept the image looking natural, i really try to keep that in mind when processing but it can be hard to tell when you have been staring at the data all week! Exposure:(L) 27*600s, 13*1800sScope: Altair Astro 115EDTCCD: Atik 383L+Mount: NEQ6 Belt ModdedCallum
  7. 6 points
    Gave M45 a try the other night.. Im reasonably happy with how it came out.. Although I do feel like noise hindered the processing a bit. This is my 3rd or 4th image since starting imaging (not counting the terrible, awful initial learning shots!) 20x150s Lights 10xDarks 10xBias Criticism welcome!
  8. 5 points
    An unexpected clear spell allowed me to capture some OIII data on this last night, so here it is added to Ha channel I captured some weeks ago. This is a hefty crop of the full frame due to some gradients which I have yet to sort out (and probably won't bother until I have the full set of data). ChrisH
  9. 5 points
    Taken back on last clear night, 8th Dec. This is my first attempt with the Lacerta dithering and first light for the Canon 70-200mm L IS ii. My focusing was slightly out and I forgot to balance the new lense setup. Anyway dithered by 12pixels in Lacertas snake pattern. I processed this the Tony Hallas way by doing the RAW in Camera RAW then registering and combining in Registar, the rest in Pixinsight and Photoshop. I need to spend more time on this and sort the stars out but the dithering certainly allows faint stuff to show through with the dreaded colour mottle certainly destroyed. Anyway, here is part of SH2-264, Orion's Head at 100mm. 25x300secs Canon 60Da, Canon 70-200mm L IS II 100mm f/2.8 Thanks for looking
  10. 5 points
    Another attempt at Catalina from early Friday morning. This time I used star adventurer with canon 70d and my tamron 150-600 at about 250mm. Must say this lens is so difficult to focus and I'm not sure of its quality for this type of work. I'm not sure if I should invest in a canon 300 f4 prime as thats a cracking lens for my wildlife photography as well or go for a small scope such as an altair astro 70 purely for astro imaging. Then I'm not sure if the star adventurer would cope with the weight? Decisions decisions!! I also had problems with DSS with this one as well. I'm not sure if I've mucked up the comet settings as it kept getting right to the end and less than one second to producing the final image before locking up! I did get something out in the end but again not sure how many it stacked, I think about 14, 35 second exposures. As always my photoshop skills are suspect!!!
  11. 5 points
  12. 4 points
    This has been on my radar for some time, but while I've had the longer focal length scopes for a couple of years now, something always got in the way. This year I was determined to get it! The Avalon Linear Fast reverse mount continues to guide well with the ODK10 (but there's a new mount in the stable, so watch this space!) and the QSI683 is just divine! Details: Mount: Avalon Linear Fast reverse Telescope: Orion Optics ODK10 Camera: QSI683 with Astrodon 3nm Ha and OIII filters 30x1800s Ha 25x1800s OIII 27.5 hours of total exposure You can see a larger version here as I expect the jpeg is compressed terribly
  13. 4 points
    Good Evening all and hello from a forum newcomer. Was hoping to post a new image or two as a first post but the weather has put paid to that, so thought I would introduce myself with a few images taken earlier this year. Imaged with a Canon 1100D modified, ED80 Sky Watcher for Horsehead and M31 Celestron SCT for the Whirlpool. Fingers crossed for good weather over the Xmas break. Thanks for looking and Merry Christmas to you all.
  14. 4 points
    Tonight (well, sun sets at 15:00 here..) I tried the Astronomik Pro Planet IR-742. What an amazing difference! First samples from a hasty setup.. ASI224MC + SW200PDS Clear skies! -TW
  15. 4 points
    Hi folks, after a very long time of abstinence I am back here. Motivation for astrophotography is not always the same. I did nothing in months. But now my love for astronomy is back. I bought a new telescope (TeleVue 127) and started with a session for two nights with the Canon EF 200LII. I tried to capture a very faint object, IC 360. Between Plejades, Hyades and California Nebula there is a lot of dust. My picture shows a part of it. Done with Moravian G2-8300FW, 35x600s L and 15x300s for every channel in RGB. Regards Werner
  16. 4 points
    Hello, As the sky is still full of clouds, again and again, and again I don't know if I willl remember how to use this 16" dob one day And how to connect all this ? Can't wait for clear skies to image the giant one again... Wish you all a merry xmas.
  17. 3 points
    Wow, Mates ! I got !!! It was a hard process to bring out all those stars ! GSO 305 mm - ASI120MC Resolution = 800 x 640 Exposure (s)=2,98578 Brightness=2 Gamma=90 WhiteBalance=5000 Gain=6
  18. 3 points
    This is my first observation report with this telescope. Here I will focus on the observation, rather than the equipment. Overall, I am very satisfied with this telescope! Luckily Jupiter came out in the night so I could also test a planet. Not my favorite time to view planets as I think planetary observation is considerably better at twilight or dawn, but it was still okay. One of these day, weather permitting, I will test Venus, Jupiter, Mars at dawn. The moon is also waxing crescent so will have some time to test this soon too. Anyway, here is the report! Thanks for reading, Best wishes, Piero Date 17/12/2015 Time 21:40-01:30 Location Venice area, Italy Altitude 8m Temperature 5C ( 0 km/h) Seeing 1 - Perfect seeing Transparency 5 - Clear Telescope SW Dobson 200 F6 Eyepieces Panoptic 24, Nagler 13, Nagler 7, PM2.5x Filters Astronomik OIII M42 Ori CL+Neb 50x, 92x, 125x, 171x +/- OIII Great Orion Nebula. Impressive at exit pupils of 4.0mm and 2.2mm. A nice mixture of bright and dark areas which emerged when using an OIII filter. After the telescope cooled down properly I observed the Trapezium. The stars E and F were detectable at 92x, but the best view was at 125x. E was easier, but F was not tricky either. Both appeared as dim grey stars next to their companions. A lovely portrait! M35 Gem Opn CL 50x Amazing open cluster formed by birght and dim stars. Spectacular. NGC2392 Gem Pln Neb 50x, 171x +/- OIII Eskimo nebula. Detectable without OIII filter, it appeared like a grey blob at both these magnifications. An OIII filter made the object more clear from the background sky, but its details did not improve. M41 CMa Opn CL 50x Quit rich open cluster formed by bright stars and dim stars in the background. It was fantastic. NGC2362 CMa Opn CL 50x, 92x Tau CMa cluster. Quite interesting. A bright star at the centre surrounded by 10-15 dim stars. NGC2354 CMa Opn CL 50x Diffuse open cluster with stars of similar brightness. 145CMa CMa Dbl Star 50x Nice bright pair of stars, one orange and one white-blue. NGC2367 CMa Opn CL 50x, 92x Not sure I spot this. NGC2383 CMa Opn CL 50x NGC2383 and NGC2384 are two close open clusters. NGC2383 is slightly at north. Their sizes are small but they are quite characteristic because some bright stars are also in there. NGC2384 CMa Opn CL 50x See NGC2383. NGC2421 Pup Opn CL 50x A small cluster (8') with some bright stars surrounded by medium brightness stars. NGC2432 Pup Opn CL 50x Smaller than NGC2421 (4') and it did not seem much populated. Stars were dim. NGC2440 Pup Pln Neb 50x, 171x +/- OIII It was detectable at 50x without a filter with a bit of difficulty, but it was visible. It appeared as a grey blob. Stellarium 14.1 wrongly reports this as a target of apparent mag 18.9. It is actually of mag 9.4 on wikipedia. Accordingly to this source, its central star HD62166 is the hottest known white dwarf. Clearly not visible with this telescope! 2PupA Pup Dbl Star 50x A pair of bright white-blue-ish stars. Nice to view. M46 Pup Opn CL 50x Spectacular open cluster. It looks like a great cloud of dim-medium brightness stars. It reminded me of the Sagittarius star cloud (M24). Near the centre there is the planetary nebula NGC2438 which I was not able to spot unfortunately. M47 Pup Opn CL 50x This is the most impressive target I saw tonight. A concentration of bright blue-ish stars shapes this open cluster. NGC2423 Pup Opn CL 50x, 92x From M47, there is a short chain of stars at North which leads to this open cluster. It is quite pretty, but I believe it is simply forgotten due to its proximity to M47. NGC2264 Mon CL+Neb 50x Christmas Tree. Now I understand why it is called tree. With a refractor this is upside down instead. Gorgeous target with two bright stars at the extremes and moderately bright stars all surrounding forming tree branches. NGC2251 Mon Opn CL 50x Nice moderate cluster at South-West of NGC2264. NGC2254 Mon Opn CL 50x Same as NGC2251. This cluster is located slightly south of NGC2251. NGC2244 Mon Opn CL 50x +/- OIII Satellite cluster. Nice bright cluster. I tried to see the Rosette Nebula using an OIII filter but I do not think the sky was transparent and dark enough for this target. It is also too large for my current field of view. Jupiter - Planet 92x, 125x, 171x, 231x Jupiter was impressive to observe. Although at 125x most of its features were visible, I achieved the best view at 171x. The primary mirror was already collimated but collimation was not top notch. For this reason I will test high power again as soon as I get the proper key to collimate the mirror. The secondary mirror was perfectly collimated instead. At 171x, the North and South Equatorial belts were visible. The north eq belt showed the presence of small obliquus shades. These were not obvious but detectable. The south eq belt was somehow more interesting. Two distinct lines formed this belt. On these two lines on one side of the planet, it was detectable the red giant spot (GRS). Again, this was not trivial but doable. The polar regions showed other two belts respectively. The south polar belt gradually fainted approaching the pole. The four satellite were all visible.
  19. 3 points
    M1 is one of my favourite targets but tricky dodging the low scudding cloud on Dec 17 - two version but neither my best eg.... 1] essentially raw and 2] sharpening highlights noise and looses star colour but shows the red tendrils of 'explosion' Hope it's of interest ;-) Nytecam
  20. 3 points
    I'd want the scope to be able to do what the bigger scope couldn't do as well as be portable, so I'd want it to have a nice short focal length to give me the ability to observe wide fields. This rules out the small Maks and SCTs for me. The ST series refractors are cheap and cheerful if not very planetary. They'll open up the view, too. You might also pick up something tasty second hand. The TeleVue Pronto is often a very reasonable price. I think I paid abut £250 for mine. It might have been less. Olly
  21. 3 points
    It can't go in the middle - that's where the mast is going to go !!!
  22. 3 points
    Still running well and now completed several notches of the moon drive ratchet wheel The mechanism appears to be working perfectly I shall need to sort out slip rings for the power supply to the LED inside the moon globe.
  23. 2 points
    ED-80TCF - Neximage Burst Color ccd - 2 x barlow - (ICap settings = gain 495 - exposure 1/156 sec - brightness = 0 - 25 fps - moon focus) Happy to catch a few frames, ISS was traveling fast and not high altitude W-N but managed to get a few frames shortly after dusk. If I open clutches on EQ-G mount and turn the whole mount perpendicular (ISS is North = mount polar scope pointing east), its quite easy to manually track ISS with illuminated cross hair reticle. I tried the settings a member posted here for a Newt as my icap settings. I think my gain for this set up was way too high and not an ideal camera for the task, but it produced some nice fuzzys regardless. Going to try 3x barlow next time, mess with gain and star focus instead of moon. Maybe try my Nikon also another member suggested rapid jpegs. Forging on toward recognizable ISS. Happy viewing ! ML
  24. 2 points
    After months of reading and thinking what scope to get I got a good deal on a new Skywatcher Skyliner 250px auto-tracking. I'm so happy! Now I just have to wait for the clouds to go away here in Sweden... It just fits in the trunk of my Kia Cee'd 2015 Great! I don't have to leave my wife or kids at home, no telescope in the seats I used the foam from the original box to build a support for safe transport.
  25. 2 points
    Another from last night, same subject, same scope but different camera. The scope was Meade 125EDT with the QHY IMGOH mono at prime focus. This is a mosaic of 8 panes, each pane 800 from a 1000. Its a little noisier than I usually like, I should have taken longer runs (about 2000 frames) but I was trying to get all panes in before a bank of cloud came over. In fact the cloud was just encroaching on the last part of the southern highland pane. Still it was enjoyable taking and processing the image
  26. 2 points
    The following pics are of the Rosette Nebula LRGB consists of about 320 min. 80 min (4 x 20) each RGB, with the RGB binned 2x2. Taken with Televue np101is the CFHT and Hubble Pallet (HST) consists of 50 min Ha (1 x40 and 1x10) and 20 minues of OIII and SIII (1x20). Just experimenting Taken with Telvue np101is. The zoomed pic was taken with the Celestron 11" Esdge HD--trying to zoom in on the globules in the upper rim--I obviously missed (this is the right quadrant). This was before I had a handle on manual slewing to frame a pic. I am anxious to zoom in on Melotte 15? in the Heart.
  27. 2 points
    That was a nice surprise last night of a couple of hours clearish skies enough for me to play with various cameras on the 127EDT. This is the 1st one of the batch, my little Olympus OM D EM10 mirrorless. I have tried this cam on scopes before but not had much luck so this is my best so far. I usually prefer the Canon DSLR for these types of shot but this is a close contender I reckon 20 frames taken in Raw, stacked and wavelet in R6 This image is half size.
  28. 2 points
    Ok, right, so this isnt a joke, ive checked its not April 1st, but ive got a clear sky alert for tomorrow night, and also monday night perhaps. So keep an eye on the forecast,dust your scopes off (if you havnt lost them by now ) and maybe, just maybe get ready for some observing
  29. 2 points
    Deconsternate! I removed a few more screws (notably the dioptre adjust by the eyepiece) so the top would lift up a bit. This made it possible to get at connector i and the top sensor screw with ease and meant I could leave the dread connector j in place. In the end I didn't bother shimming: open longer = more chance of dust getting in or zapping a circuit board. Just done a quick test and its all working! Phew!
  30. 2 points
    Been the cloudiest early winter for years [1st clearish night last night in 10 days] and I'm suffering photon starvation! Temps in high 60sF - warmest December for 100yrs - all down to global warming. Did a dozen Messiers/NGCs - here's the bright Eskimo in 5 seconds via Lodestar-C under me dome - data on image ;-) Nytecam
  31. 2 points
    Up at 3.30 and what a lovely sky. Jupiter in the south showing dark bands with a darker barge along the southern belt. I managed a useable x300, after collimating the Newt and just sat absorbed . Waiting for comet Catalina to rise, I had a quick galaxy search. Canes Venatici had always been a favourite area and I was soon able to pick off the brightest here. NGC 4449 provides a lot of fun , try above x150 to get those little sparkles resolved. Starting off with M51, sweeping across to M 106 and M 63 , then going off Chara for the cocoon of NGC 4490. Passing the glorious M3 and into the Coma-Virgo group. C2013 US10 Catalina appeared much brighter than a week ago. A lovely glow near a double star. To the south , Mars above Spica. Lovely sky to go trawling for the brighter targets , with the warmth , a little preview of Spring galaxies, Clear skies, Nick.
  32. 2 points
    3.5mm Baader Hyperion in the classifieds for £32 if anyone wants to add to their eyepiece collection.
  33. 2 points
    As recently mentioned here on SGL, for a long time I have considered to replace my old telescope in Italy so that I could enjoy a bit more aperture for the next three years when coming back on holiday. Well, finally I opted for a Sky-Watcher Skyliner 200 F6 because of: - great size/weight - large coma free area - light polluted sky Although I plan to take this telescope to the mountain for some days in the summer, I could not justify a 250 in terms of cost and weight due to the little use per year under a light polluted sky. Of course this is just a choice due to personal circumstances. If this had been my primary telescope for observation, I would have probably chosen a 250mm instead. After getting in touch with Riccardo, chief at Telescope Service Italia (near Treviso, Italy; http://www.teleskop-express.it/)I bought this telescope yesterday after landing Riccardo and the people at TS Italia had been very nice and helpful, and I believe the creation of a TS selling point in Italy will be highly beneficial for the market in Southern Europe. Overall, their service was excellent. About the telescope. Well, this is a well known telescope, so not many surprises from my side. All the pieces were in perfect condition and the installation was easy. A user manual is also included, although there are plenty of reviews about this telescopes here on SGL and else where. Base: A rock solid dobson base. After reading a post on www.iceinspace.com.au/, I prefer to add a remark. The observing position for these telescopes is quite low. Therefore one should either observe sitting on a chair or position the telescope on an elevated structure (e.g. a low table). The base was easy to mount and movements are sufficiently smooth. Finder: This is a straight finder. A lot of people nowadays prefer a RACI+Telrad combination. Personally I like straight finders but I also have to say that I use the finder just at the beginning to locate the initial point. After that I star hop using my 24 Pan directly. For people strongly relying on a finder for starhopping, a RACI (+Telrad) combination could be much more comfortable for the neck. One thing I noticed which can be improved on these finder is the locking base. The finder mount enters in the saddle from the bottom and reaches an end point at the top. For the finder safety, I think it should be the other way around, so that if the shoe screw gets less tight, the finder base does not slide down but still remains attached to the finder base shoe. Eventually a telescope points to the sky not to the floor! Overall the alignment is dead easy, much simpler than my old Orion 8x50 straight finder with two circular brackets and 6 screws holding in position. Focuser: The focuser is basic but does the job. Having a nice set of eyepieces, I don't like the idea to scratch the barrel with the focuser screw. Therefore I previously bought a Baader 2" to 1.25" Reducer adapter from FLO (http://www.firstlightoptics.com/adapters/baader-2-to-125-reducer-adapter.html), which is inserted in the 2" eyepiece holder sold with the Skyliner telescope. This works nicely and the screws are very smooth too. A click-lock adapter would be better, but is also more expensive. If you are not too fussy, this adapter just works more than fine. Collimation: The secondary mirror was a bit off collimation. With a Cheshire collimator and the provided screw key, this was aligned properly. For the primary mirror, the telescope did not come with a key for collimating. The hexagonal screws were slightly larger than those for the secondary and therefore the key did not work. The primary was not perfectly collimated, but it was still acceptable up to 171x on my tests. I will replace these screws with a set of Bob's knobs so that I won't have to adjust the secondary, if needed, with a key potentially falling inside the tube! Mirrors: Both were in a excellent shape and no problem with them. From inside to outside, it took an hour to cool the telescope down properly. After that, it was ready for also medium high power views (up to 171x due to the lack of precise collimation on the primary). Not a criticism, because I don't have any.. After using a refractor for a while, the view of bright stars can be a bit surprising. It doesn't matter how much you can read about the secondary spider lines coming out from bright stars, it still remains a surprise to get used to it! I heard that curve spiders can limit the presence of these crosses on bright stars. I am not going to invest on them on this telescope, but if one is sensitive to this, maybe this is an option to look into. Overall: Really happy with this telescope and is a joy to use. I strongly recommend it to anyone who is looking for a general purpose, transportable and very capable telescope. First light? Well, of course! Luckily yesterday the sky was very nice! Here is a first report: http://stargazerslounge.com/topic/258745-testing-some-new-target-with-a-new-scope/ Thanks, Piero
  34. 2 points
    Essex forecast ... Cloud , followed by more cloud, with a chance of some other clouds mixing with the clouds already cloudying the cloudy sky. With more cloud above the clouds so if the clouds open slightly the clouds above the clouds will be clearly visible as another layer of cloud. There may be the odd chance of a small break in the clouds which will coincide with shopping or trips to relatives ... So in summary , CLOUDS ad infinitum :-)
  35. 2 points
    This website is pretty good: http://dso-browser.com/ Note the graph on the right, it shows the height plotted against time so you can see the best time to image it. ChrisH
  36. 2 points
    Firstly I only ever start an imaging project for myself when the target is in the right place - so rising in the east at nightfall. If it's already half way across the sky I'll wait till next year. The second consideration is the size of the object relative to the field of view of the rig. I'm happy to mosaic when necessary but if it's too small for my focal length I'll recommend it to friends with long FLs available! I check this using SkyMap Pro but other planetaria will allow you to model chip sizes and focal length as well. (Another thing I look out for is the chance to bring two or more unrelated objects into one mosaic. I just think it's fun to show the relationship between them.) As for how to find nice objects off the beaten track, well, I'll check the planetarium again and then do a Google image search for things I don't know. Olly
  37. 2 points
    Got this one, seemed a bit brighter the other morning. Definately worth a look, Nick.
  38. 2 points
    Some damn idiot had to go and tempt fate!
  39. 2 points
    They won't ship outside the USA though. If they did and you added on shipping and import duty etc you get to around £260 apiece. First Light Optic sell the same eyepiece you link to for £223.00. Thats their regular price.
  40. 2 points
    "barrows" We know what you mean Stu
  41. 2 points
    My 5 and 6 year olds are able to name the planets in order, and which ones are gas giants. My eldest also insists the Pluto is a planet, even though it never has been in her lifetime! Don't worry about it. Make it exciting and kids of all ages (3-93) can be interested.
  42. 2 points
    I had to polar align and couldn't use the Polar scope as it wouldn't see above my observatory wall. So I did the drift method instead. It's so easy in comparison.... no messing with setting circles, trying to ascertain the transit of Polaris, no guessing that it really is Polaris ....... brilliant, why do people still polar align if they are imaging?
  43. 2 points
    A bit unfair - the message you're replying to was a response to "I am looking to get a DSLR for christmas. We want to take this on a holiday to Sri Lanka, but also to double up as an AP camera. How would you rate the 1200D for that purpose?"
  44. 2 points
    Thanks guys for the comments and likes ! North of the above "Eskimo" and a degree or so SW of Castor is another but faint [m13.0 + m14.8 central star] OIII emitting planetary NGC 2371 that I've dubbed the "Castor Propeller" for its appearnce and proximity to Castor - and why not! In deep exposures this PN has multiple faint loops extending outwards including two brightish opposing lobes - one of which is just captured in 40s exposure. Data on image ;-) Nytecam
  45. 2 points
    I've been using a couple of Maplin's cases for a few years now. My eyepieces have changed quite a lot over the years so rather than remove blocks of the foam, I break the connections between the blocks and then press the section down beneath the item I'm going to store. The foam spikes in the lid keep items in place and the depressed recess soon takes the shape of the item. When you change the item you can pull the foam blocks back up and after a short while they are flush with the surface again and can be re-shaped into new depressions for new items.
  46. 2 points
    Still only had a quick look at it, but there seems to be a lot of very nice improvements. All the searchable items have little pics next to them to make it easy to see what you're looking for. You can also bring up an image of them from the Deep Sky Survey. I agree that it's annoying that it's not possible to upgrade but from what I've seen so far it's easily worth the £15 offer price.
  47. 2 points
    Blimey Olly, thats a severe curve! I use stock curves on every image (saved off as .acv files so I can use them whenever I want), with the occasional custom one just to tweak here and there. Why stock curves? Well, it ensures a repeatable and consistent workflow for all images.
  48. 2 points
    asset189 here is a link to my blog which shows how I use the setting circle http://stargazerslounge.com/blog/1370/entry-1760-sw-200-dobson-eyepieces-my-mods/
  49. 1 point
    Decided to run a test and see just how fast the clock could be driven So I connected it to my W7 laptop and transferred the test sketch to that. Gradually reduced the phase delay until the clock stopped when running off 12v. Running fine at 3ms - stopped at 2.5ms so have it set to 3ms and a minute takes just under 12s - so that's just over 5x normal speed. That's better than I thought since there's about a 2x gear reduction from motor to seconds shaft. Motorised GMT to BST and back would take 5m which would be just about acceptable I think - particularly if I made it automatic at 2am when I'm usually asleep
  50. 1 point
    Welcome to the Dob mob Piero. I have used this scope for 2 years now and it has been a fantastic bargain.
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