Well I didn’t manage the occultation because of really bad weather – very windy and sleet blowing into the dome and telescope tube.
Got an image just before occultation.
2s exposure 1×1 TR filter
Just for test purposes but quite fun. Focus not spot on though.
|Object ID||Mizar and Alcor|
|Details||Double star(s) Ursa Major|
|Telescope||RC8 at f/8|
|Camera||Atik 460EX (-15C) and SX filter wheel|
IDAS P2 LPR filter
|Exposure(s)||RGB 6x10s each 2×2|
darks, no flats or bias
|Capture||APT, no guiding|
|Processing||Stacked in Nebulosity, processed in Photoshop|
A very close conjunction.
|Object ID||Jupiter and Mars in conjunction|
|Details||A very close conjunction, less than 14′ between the two planets. Poor seeing and very low altitude <15degrees|
|Date/Time||2018-01-7 05:47UT, Inset 06:03UT|
|Telescope||C80ED @ f7.5|
|Exposure(s)||30s, inset 0.6s|
no darks, flats or bias
|Processing||Processed in Photoshop|
DIY wide angle mount using old ETX90EC mount. Horrible vignetting caused by IDAS filter in front of lens, but could be removed with flats. Proves the drive works though. Using an old fixed 135mm film lens (approx. 80mm equivalent).
Canon EOS 600D, ISO 1600
5 x 25s, auto darks
135mm film lens – very cheap and old
2″ IDAS P2 LPR filter in front of lens
Processed in Nebulosity, PhotoShop and Lightroom.
2013-08-30 21:28 UT
200mm f5 newtonian, unguided
4×30s ISO 800, darks
Canon EOS 350D modded, Astronomik CLS
Captured in APT, Processed in Nebulosity, PS CS5
Discovered 14 Aug 2013 by Koichi Itagaki of Yamagata, peaked at mag. 4.5.
It’s about 13,000 light years away. Was originally quite blue but is now much redder – this is what sometimes happens as novae evolve.