Padova-Asiago Supernova Group
The Asiago Supernova Catalogue
Catalog column description
- supernova designation. The symbols "?'' denote an unconfirmed SN and "*'' the occurrence of multiple SN discoveries in the same galaxy.
- parent galaxy identification. In case a galaxy has different identifications, we adopted the following priority: NGC, IC, MCG (M), UGC, ESO (E), PGC, Leda, others. In some cases specific names are reported, e.g. LMC. Anonymous galaxies are listed with the letter A followed by the coordinates. In a few cases, where the association with a definite parent galaxy was not possible, we have filled the field with INTERGALACTIC.
- Right Ascension of the parent galaxy at the 2000.0 epoch.
- Declination of the parent galaxy at the 2000.0 epoch.
- Right Ascension of the supernova at the 2000.0 epoch.
- Declination of the supernova at the 2000.0 epoch.
- morphological type of the parent galaxy
- morphological type code for the parent galaxy (coding as in RC3).
- only for disk-like system, inclination of the polar axis with respect to the line of sight in degrees (0 for face on systems).
- position angle of the major axis of the parent galaxy (North Eastwards) in degrees.
- heliocentric radial velocity of the parent in km s-1, but for objects with redshift where the z value has been listed.
- integrated B magnitude of the parent, mostly from the RC3 or LEDA. In a few cases only photographic magnitudes (prefixed by p) are available.
- decimal logarithm of the apparent isophotal diameter, in 0.1 arcmin units.
- SN offset from the galaxy nucleus in arcsec, in the E/W direction.
- same as above for the N/S direction
- if available, supernova magnitude at maximum (photometric band indicated); otherwise discovery magnitude (labelled by *). A magnitude without band means that the observation has not been made in a standard photometric system (e.g. those reported in the discovery announcement as photographic, blue plate, red plate, CCD without filter, and so on).
- supernova type, mostly from spectroscopy. In a few cases, marked by *, types have been inferred from the light curve.
- if known, epoch of maximum, otherwise * marks date of discovery.
- name(s) of discoverer(s). For organized search teams the acronyms are given.