Comet 41P (TGK) 2 Apr 2017@23:23-23:54 (UT+3) Kyiv
Setup: Canon EOS 600D + SW 15075 OTAW Newtonian on EQ5 with motor drives (no guiding)
50 frames x 30s; ISO 800 (19 darks, 19 offsets)
Processing: DSS + FITStaker + RawTherapee.
The angular size of the resulting cropped picture is 0.75x0.75 degrees; resize 25%.
I could not distinguish the comet by eye trough 28mm eyepiece. Probably it was because of poor transparency of the atmosphere that night. At the beginning I even saw iridescent corona around the Moon, then it disappeared.
The night was very warm (for the season here); the temperature gradually reduced from 16*C to 11*C; calm.
The Big Dipper was near zenith...
It was my first attempt to picture non-planetary object through my new Newtonian. 30-s exposures are good even without guiding.
I could see the comet shift between frames even for such a small interval (33 s from frame to frame)!
The first picture is stacked "by a comet"; the second one -- "by stars". You can see the shift of the comet during ~30min (size of the pictures is 0.75x0.75 degrees -- 1.5 of the visible diameter of the Moon).
Setup: Canon EOS 600D + SW 15075 OTAW Newtonian on EQ5 with motor drives (no guiding)
50 frames x 30s; ISO 800 (19 darks, 19 offsets)
Processing: DSS + FITStaker + RawTherapee.
The angular size of the resulting cropped picture is 0.75x0.75 degrees; resize 25%.
I could not distinguish the comet by eye trough 28mm eyepiece. Probably it was because of poor transparency of the atmosphere that night. At the beginning I even saw iridescent corona around the Moon, then it disappeared.
The night was very warm (for the season here); the temperature gradually reduced from 16*C to 11*C; calm.
The Big Dipper was near zenith...
It was my first attempt to picture non-planetary object through my new Newtonian. 30-s exposures are good even without guiding.
I could see the comet shift between frames even for such a small interval (33 s from frame to frame)!
The first picture is stacked "by a comet"; the second one -- "by stars". You can see the shift of the comet during ~30min (size of the pictures is 0.75x0.75 degrees -- 1.5 of the visible diameter of the Moon).
An animation (23:23-23:54 (UT+3)); frame size 15'x15':
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