Registry · deep sky

HD 189957

Star SIMBAD * O9.7III 111 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: 20h 01m 00.00s
Declination: +42° 00′ 30.8″
Galactic l, b: 77.435, 6.172
Magnitude V: 7.82
Parallax: 0.473 mas
Redshift z: 0.00012676
Radial velocity: 38 km/s
Proper motion: -4.026, -3.732 mas/yr

Also known as

28 identifiers

2MASS J20010001+4200309AG+41 1815ALS 10719BD+41 3569CEL 4912CGO 550Gaia DR1 2075283289254195072Gaia DR2 2075283293565448704Gaia DR3 2075283293565448704GCRV 70225GEN# +1.00189957GOS G077.43+06.17 01GSC 03158-02034HD 189957HGAM 822HIC 98530HIP 98530LS III +41 1MCW 773PPM 59175SAO 49080SKY# 37546TD1 25912TIC 239298430TYC 3158-2034-1UBV M 24421uvby98 100189957WEB 17406

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
HD 227117	Star	135.7″	9.45
ATO J300.1954+42.0127	EclBin	146.7″	—
ATO J300.3333+41.9530	EclBin	299.6″	—
ZTF J200102.61+415346.2	RRLyrae	405.7″	—
ZTF J200127.56+420708.2	RRLyrae	502″	—
BD+41 3573	Star	522.5″	9.44

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/hd-189957 · Registry entry updated 2026-08-14.