Registry · deep sky

SN 1921B

Supernova SIMBAD SN* SNII 27 papers

harvesting The full record is being pulled from the archives right now — measurement tables, the Gaia row, catalogue photometry. This page will fill itself in.

Right ascension: 10h 18m 16.90s
Declination: +41° 25′ 27.0″
Galactic l, b: 178.34, 55.64
Magnitude V: 13.5

Also known as

1 identifiers

SN 1921B

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
SN 1937F	Supernova	0″	13.9
NGC 3180	GtowardsGroup	1.228″	—
QSO B1015+4134	QSO	29.7″	19
SN 2016bkv	Supernova	29.77″	—
SN 1999gi	Supernova	61.26″	—
AT 2010dn	Transient	70.36″	—
[SST2011] J101812.05+412420.7	ULX Candidate	85.86″	—
[SST2011] J101823.00+412741.7	ULX Candidate	151.1″	—
SN 1921C	Supernova	275.7″	10.9
SDSS J101749.32+412259.3	QSO	343.6″	—
SDSS J101848.68+412343.4	QSO	372.2″	—

Provenance

where this card came from

Archive	Read at (UTC)	Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/sn-1921b · Registry entry updated 2026-08-14.