dawson Posted November 28, 2013 Share Posted November 28, 2013 About an hours worth of subs looking North West from Trawsfynydd last night (21:45 to 22:40). Each frame is 20 seconds, f/3.5, 10mm focal length on Canon 600D, ISO 6400 (don't ask, this was a mistake). Stacked with http://startrails.de/ and levels and curves slightly altered in Photoshop. The lens misted up after this despite the hand-warming pad applied to it; I need another 10m lead for my dew controller. The bright central area is the Milky Way. There is a time-lapse video too of it which I'll try and upload: James Link to comment Share on other sites More sharing options...
Brantuk Posted November 28, 2013 Share Posted November 28, 2013 Nice one James - quite an unusual and pretty stunning star trail shot. Link to comment Share on other sites More sharing options...
dawson Posted November 28, 2013 Author Share Posted November 28, 2013 Thanks Kim. The wide angle lens distorts the rotation. To be honest, I hadn't realised Polaris was in the shot so hadn't planned for that bit of circum-polar action going on! James Link to comment Share on other sites More sharing options...
dawson Posted November 28, 2013 Author Share Posted November 28, 2013 Here is the time lapse (if the links work): James Link to comment Share on other sites More sharing options...
catman161 Posted November 28, 2013 Share Posted November 28, 2013 Nice one James that had a real "vortex" look to it, really nice. Link to comment Share on other sites More sharing options...
Cazz Posted November 28, 2013 Share Posted November 28, 2013 That's very nice James, you're having a great astro time in Wales, how long are you there for? Link to comment Share on other sites More sharing options...
Brantuk Posted November 28, 2013 Share Posted November 28, 2013 I do like the time lapse - gives one a real feeling for the Earths wobble and tilt as the stars not only rotate but sink a bit as well below the horizon. You can see this by speeding up Stellarium with the ecliptic switched on and you see it tilting over several hours - but the time lapse shows it for the whole sky. Very good demonstration. Link to comment Share on other sites More sharing options...
dawson Posted November 28, 2013 Author Share Posted November 28, 2013 Cazz, unfortunately I'm coming back on Saturday. Back to the grind stone James Link to comment Share on other sites More sharing options...
dawson Posted November 28, 2013 Author Share Posted November 28, 2013 Here's another run I left while I went for a shower: James Link to comment Share on other sites More sharing options...
Brantuk Posted November 28, 2013 Share Posted November 28, 2013 Hahaha!! Tooooo funny! - love it Link to comment Share on other sites More sharing options...
Cazz Posted November 28, 2013 Share Posted November 28, 2013 Lol, clever :-) Saturday :-/ will you find your way home lol. ;-) Link to comment Share on other sites More sharing options...
catman161 Posted November 28, 2013 Share Posted November 28, 2013 Ha ha ha! Link to comment Share on other sites More sharing options...
BAZ Posted November 28, 2013 Share Posted November 28, 2013 Real nice James, at least you have had some clear sky at last. The Dr only came back for his birthday prezzies! Link to comment Share on other sites More sharing options...
dawson Posted November 30, 2013 Author Share Posted November 30, 2013 And another star trail. Looking south. You can make out the shape of Orion to the right of the middle. About 550 subs, each of 20 seconds, taken between 03:30 and 06:30. ISO 1600, f/4, 19mm focal length on Canon 6D. No darks, and this is something I must start remembering to do as there are still a fair few hot pixels around. James Link to comment Share on other sites More sharing options...
+RonC Posted November 30, 2013 Share Posted November 30, 2013 Good photo's James, really getting the hang of the star movements! (like the Dr's arrival!) Link to comment Share on other sites More sharing options...
dawson Posted November 30, 2013 Author Share Posted November 30, 2013 Does this *.gif play on EMS? James Link to comment Share on other sites More sharing options...
+RonC Posted November 30, 2013 Share Posted November 30, 2013 Yes Link to comment Share on other sites More sharing options...
dawson Posted November 30, 2013 Author Share Posted November 30, 2013 Yes it does. Any thanks Ron. My exploits with Jupiter at 3am were awful so I'm leased I at least have something to prove getting up at 3am was worth it If I have many more nights light last night, I may ditch the telescope and just stick with a DSLR and a mount. 180 Mak in the for sale section soon lol. James Link to comment Share on other sites More sharing options...
+RonC Posted November 30, 2013 Share Posted November 30, 2013 Ha ha, we all have nights like that but one good night's skywatching and it's all forgotten!! Link to comment Share on other sites More sharing options...
Guest Tweedledum Posted November 30, 2013 Share Posted November 30, 2013 Nice one James, but you haven't caught the glow from the cooling pile of the nuclear power station! Link to comment Share on other sites More sharing options...
dawson Posted November 30, 2013 Author Share Posted November 30, 2013 Thanks. The power station which is being decommissioned (will take 50 years apparently) is to the north of me, so the glow was behind James Link to comment Share on other sites More sharing options...
Guest Tweedledum Posted December 1, 2013 Share Posted December 1, 2013 Yup they are also doing Wylfa a short distance from my home town of Holyhead. When the cloud from chernobyl reached us it set off all the external radiation detectors at wylfa Link to comment Share on other sites More sharing options...
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