Discovery of an Apparent Nova in M81
ATel #12859; K. Hornoch, H. Kucakova (Ondrejov), S. C. Williams (Lancaster), G. Sala, J. Jose (UPC-IEEC), B. Stecklum (TLS), M. J. Darnley (LJMU), A. Kaur (PSU), D. H. Hartmann (Clemson), A. W. Shafter (SDSU
on 10 Jun 2019; 21:55 UT
Credential Certification: Steven Williams (s.williams7@lancaster.ac.uk)
Subjects: Optical, Nova, Transient
The M81 nova monitoring collaboration reports the discovery of an apparent nova in M81
on a co-added 2340-s unfiltered CCD frame taken on 2019 Jun. 9.875 UT with the 0.65-m
telescope at Ondrejov.
The object designated PNV J09554664+6902473 is located at R.A. = 9h55m46s.64, Decl. = +69o02'47".3
(equinox 2000.0), which is 72.2" east and 67.8" south of the center of M81 (see link to discovery
image below).
Here we list the observing dates and corresponding photometry:
Date [UT] | Mag | Err | Filter | Telescope>
2019-05-26.847 | <21.2 | | C | OND
2019-06 09.875 | 19.1 | 0.15 | C | OND
The OND 0.65-m is a reflecting telescope at the Ondrejov observatory operated jointly
by the Astronomical Institute of ASCR and the Astronomical Institute of the Charles
University of Prague, Czech Republic. It uses a Moravian Instruments G2-3200 CCD
camera (with a Kodak KAF-3200ME sensor and standard BVRI photometric filters)
mounted at the prime focus.
The unfiltered OND photometry was calibrated against R-band comparison stars from
Perelmuter & Racine (1995).
Discovery image
