Possible Supernovae

by Alain Klotz

1. Instrumental design

I observed about 300 galaxies by clear night since 1 feb 2000 with a fully automatized LX200 telescope (8" diameter). The CCD is an Audine equiped by an Kaf-401E chip (grade 0 quality). The camera has no shutter. An "unsmearing" algorithm is used after the dark correction. The flat correction is not performed. Each image is integrated 60 seconds with a binning 2x2 (sampling is 4.4 arcsec/pixel). About 300 to 400 fields are recorded each night. A quick visu software, named SNVisu, was created with the AudeLA platform. It allows to see the night image (at left) and the reference image (at right) on the same screen.

2. Images

Click on the links for more infos...

Night 2000-03-06

NGC 1723
NGC 2770 A spinning satellite in the field
NGC 2723 Faint galaxies, not a comet !
IC 591 A nice reflexion of Regulus or a comet ?
IC 594 Not a SN but a nice geostationary satellite.

Night 2000-03-05

NGC 1667 A faint star
NGC 1637 A known supernova
NGC 2445
NGC 2967 A nice candidate. Seen again at the same magnitude on 2000-03-06. A faint star on the DSS.
NGC 2859 Not seen in the night 2000-03-06
NGC 2749 It is a star
NGC 5254 Not seen in the night 2000-03-06

Night 2000-03-02

IC 485 Not a SN but a star
IC 578 Not a SN, a cosmic

Night 2000-02-27

NGC 2942 Not a SN
NGC 2936 Not a SN
IC 509 Not a SN
NGC 2535 Not a SN