Registry · deep sky

SN 1999by

Supernova SIMBAD SN* SNIap 308 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: 09h 21m 52.07s
Declination: +51° 00′ 06.6″
Galactic l, b: 166.91, 44.12
Redshift z: 0.0027
Radial velocity: 808.35 km/s

Also known as

2 identifiers

AAVSO 0915+51SN 1999by

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
SN 1957A	Supernova	16.74″	—
BD+51 1497	Star	31.8″	11.22
SN 1912A	Supernova	86.91″	13
QSO B0918+511	QSO	132″	—
NGC 2841	LINER	135.2″	9.22
SN 1972R	Supernova	172.6″	—
SDSS J092145.77+505632.8	QSO	221.8″	—
HD 80566	Star	346.4″	8.49
SDSS J092200.58+505338.3	QSO	396.5″	—
SDSS J092158.36+505254.3	QSO	436.4″	—
[VV2006] J092109.7+505431	QSO	522.3″	20.56

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-1999by · Registry entry updated 2026-08-14.