Category: Supernova

2018eoi, Type unknown
Discovered 2018-07-19.571 by ATLAS, mag 18.148 at discovery
R.A. = 23h59m33s.640, Decl. = +56°05’01”.63

Observer: Cedric Raguenaud, SW France
2018-08-22.992
Approx mag 21.58CV ±0.30, ZP=29.514
0.25m/f4 reflector + EQ8
QHY183C, 0.5″/pixel
6x300s, bin 1×1

Another one hard to process at mag 21.58, a hair above background noise!

2018elh, Type Ia
Discovered 2018-07-21.522 by ATLAS, mag 18.854 at discovery
R.A. = 21h06m09s.640, Decl. = +70°21’08”.71

Observer: Cedric Raguenaud, SW France
2018-08-23.118
Approx mag 21.24CV ±0.15, ZP=29.409mag
0.25m/f4 reflector + EQ8
QHY183C, 0.5″/pixel
6x300s, bin 1×1

The supernova is now extremely faint.

2018epx, Type Ia in LEDA 1806296
Discovered 2018-08-05.605 by ATLAS, mag 17.66 at discovery
R.A. = 23h29m53s.220, Decl. = +27°22’40”.90

Observer: Cedric Raguenaud, SW France
2018-08-16.000
Approx mag 15.99CV ±0.00 (dmag 0.061mag on 301 reference stars from UCAC-4), ZP=29.248mag
0.25m/f4 + EQ8
QHY183C, 0.5″/pixel
6x300x, bin 1×1

2018ddu, Type Ic in 2MASX J16354562+7141121
Discovered 2018-07-04.367 by ZTF
R.A. = 16h35m46s.560, Decl. = +71°41’15”.24

Observer: Cedric Raguenaud, SW France
2018-08-15.972
Approx mag 18.30CV ±0.06 (dmag 0.066mag on 192 reference stars from UCAC-4), ZP=29.420
0.25m/f4 refractor + EQ8
QHY183C, 0.5″/pixel
6x300s, bin 1×1