Registry · deep sky

HD 170740

SB* SIMBAD SB* B2V+ 211 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: 18h 31m 25.69s
Declination: −10° 47′ 45.0″
Galactic l, b: 21.057, -0.5259
Magnitude V: 5.72
Parallax: 4.4159 mas
Redshift z: -5.137e-05
Radial velocity: -15.4 km/s
Proper motion: 1.547, -17.15 mas/yr

Also known as

34 identifiers

2MASS J18312570-1047449ADS 11414 AALS 9707[B10] 4687BD-10 4713CCDM J18314-1048ACSI-10 4713 1Gaia DR2 4154910272219704960Gaia DR3 4154910272219704960GC 25282GCRV 10985GSC 05695-00802HD 170740HGAM 702HIC 90804HIP 90804HR 6946IDS 18259-1052 ALS IV -10 11N30 4109PPM 234650SAO 161569SKY# 33886SSTGLMC G021.0573-00.5259** STF 2325ATD1 22597TIC 424643149TYC 5695-802-1UBV M 23014uvby98 100170740 AVDB 124WDS J18314-1048AWEB 15563YZC 11 6338

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
HD 170740B	Star	12.41″	9.29
SNR G021.0-00.4	SNRemnant	206.7″	—
2MASS J18310407-1042283	RGB*	449.2″	—
ATO J277.9483-10.8934	EclBin	477.2″	—

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/hd-170740 · Registry entry updated 2026-08-14.