OzEclipse
15-12-2023, 08:56 PM
Great display last night. I'm happy with the photographic results but sitting in my back yard with a mate on reclining camp chairs for a few hours watching slow burn, sky crossing, long persistence meteors was pretty amazing.
Photographically, I captured 252 images each of 40s exposure, ISO 3200, 14mm f2.8 lens over 3 hrs between 12:30UT - 15:43UT [11:30pm-2:43 am local time]
1) 30 subs without meteors were median stacked to create the background starfield.
2) 42 subs showed moving objects. Of these 42, 24 frames were identified as aircraft or satellites by velocity/duration analysis.
3) 18 frames contained one or sometimes two meteors. The stars in these frames have been aligned with the background star field and then each frame was masked to include only the meteor track.
4) Meteors with trajectories aligned to the Geminid radiant just near Castor have been labelled with a G.
5) Other unlabelled meteors are either space junk or random meteors not in the orbit of the Geminids.
Photographically, I captured 252 images each of 40s exposure, ISO 3200, 14mm f2.8 lens over 3 hrs between 12:30UT - 15:43UT [11:30pm-2:43 am local time]
1) 30 subs without meteors were median stacked to create the background starfield.
2) 42 subs showed moving objects. Of these 42, 24 frames were identified as aircraft or satellites by velocity/duration analysis.
3) 18 frames contained one or sometimes two meteors. The stars in these frames have been aligned with the background star field and then each frame was masked to include only the meteor track.
4) Meteors with trajectories aligned to the Geminid radiant just near Castor have been labelled with a G.
5) Other unlabelled meteors are either space junk or random meteors not in the orbit of the Geminids.