Registry · deep sky

HD 171238

HighPM* SIMBAD PM* G8V 77 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 34m 43.68s
Declination: −28° 04′ 20.3″
Galactic l, b: 5.9455, -9.055
Magnitude V: 8.65
Parallax: 22.481 mas
Redshift z: 7.042e-05
Radial velocity: 21.11 km/s
Proper motion: -29.54, -109.6 mas/yr

Also known as

20 identifiers

2MASS J18344369-2804202CD-28 14719CPD-28 6595Gaia DR1 4048636937193347712Gaia DR2 4048636941542753152Gaia DR3 4048636941542753152GEN# +1.00171238GSC 06866-01721HD 171238HIC 91085HIP 91085[M64] -27 191PPM 268605SAO 186998SKY# 34020SPOCS 2978TIC 228217280TYC 6866-1721-1uvby98 100171238YZ 118 12061

Recorded parameters

1 quantity with a single published value

Parameter	Value	Unit	Uncertainty	As published	Source	Reference
Radius	1.01	R_sun	± 0.07		NASA Exoplanet Archive	Ment et al. 2018

Published measurements

2 quantities measured more than once

One object can carry a dozen published estimates of the same quantity. The register keeps them side by side rather than picking a winner — the citation is part of the value.

Mass 3 values

Value	Unit	Uncertainty	Source	Reference	Year
0.92	M_sun	± 0.03	NASA Exoplanet Archive	Li et al. 2021	2021
0.96	M_sun	± 0.17	NASA Exoplanet Archive	Ment et al. 2018	2018
0.943	M_sun	± 0.033	NASA Exoplanet Archive	Ségransan et al. 2010	2010

Effective temperature 2 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
5,440	K			NASA Exoplanet Archive	Ment et al. 2018	2018
5,467	K	± 55		NASA Exoplanet Archive	Ségransan et al. 2010	2010

Related objects

Object	Type	Relation
HD 171238 b	Exoplanet	host

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
HD 171238 b	Exoplanet	1.759″	8.61
OGLE BLG-RRLYR-63292	RRLyrae	222.9″	20.2
OGLE BLG-RRLYR-63363	RRLyrae	330.2″	18.15
OGLE BLG-RRLYR-63125	RRLyrae	390.6″	16.11
IRAS 18311-2802	Mira	444.9″	14.56
OGLE BLG-RRLYR-63235	RRLyrae	459″	18.75
IRAS 18314-2759	OH/IR*	473.8″	—
OGLE BLG-RRLYR-63142	RRLyrae	486.1″	18.58
OGLE BLG-RRLYR-63225	RRLyrae	490.9″	16.63
OGLE BLG-RRLYR-63150	RRLyrae	507.3″	19.06
OGLE BLG-RRLYR-63416	RRLyrae	528.1″	16.69

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-171238-2475595 · Registry entry updated 2026-08-14.