Registry · deep sky

HD 4203

HighPM* SIMBAD PM* G6V 156 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: 00h 44m 41.20s
Declination: +20° 26′ 56.1″
Galactic l, b: 120.79, -42.39
Parallax: 12.304 mas
Redshift z: -4.690e-05
Radial velocity: -14.06 km/s
Proper motion: 122.1, -124.2 mas/yr

Also known as

23 identifiers

2MASS J00444118+2026563AG+20 64AGKR 611ASCC 741249BD+19 117Gaia DR1 2801365996177657856Gaia DR2 2801366000472903040Gaia DR3 2801366000472903040GEN# +1.00004203GSC 01194-00026HD 4203HIC 3502HIP 3502LSPM J0044+2026PPM 90100SAO 74235SPOCS 36TIC 434225151TYC 1194-26-1UCAC2 38909793uvby98 100004203YZ 20 201USNO-B1.0 1104-00009091

Published measurements

3 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 6 values

Value	Unit	Uncertainty	Source	Reference	Year
1.137206	M_sun	± 0.0628	NASA Exoplanet Archive	Rosenthal et al. 2021	2021
1.25	M_sun	± 0.16	NASA Exoplanet Archive	Stassun et al. 2017	2017
1.13	M_sun	± 0.028	NASA Exoplanet Archive	Bryan et al. 2016	2016
0.99	M_sun	± 0.1162	NASA Exoplanet Archive	TICv8	2014
1.13	M_sun		NASA Exoplanet Archive	Butler et al. 2006	2006
1.06	M_sun		NASA Exoplanet Archive	Vogt et al. 2002	2002

Radius 3 values

Value	Unit	Uncertainty	Source	Reference	Year
1.497489	R_sun	± 0.03411	NASA Exoplanet Archive	Rosenthal et al. 2021	2021
1.42	R_sun	± 0.05	NASA Exoplanet Archive	Stassun et al. 2017	2017
1.49795	R_sun	± 0.06378	NASA Exoplanet Archive	TICv8	2014

Effective temperature 4 values

Value	Unit	Uncertainty	Source	Reference	Year
5,625.06	K	± 77.61	NASA Exoplanet Archive	Rosenthal et al. 2021	2021
5,596	K	± 20	NASA Exoplanet Archive	Stassun et al. 2017	2017
5,582	K	± 133.2	NASA Exoplanet Archive	TICv8	2014
5,702	K		NASA Exoplanet Archive	Butler et al. 2006	2006

Related objects

Object	Type	Relation
HD 4203 b	Exoplanet	host
HD 4203 c	Exoplanet	host

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
HD 4203 b	Exoplanet	2.7″	8.7
HD 4203 c	Exoplanet	2.7″	8.7
SDSS J004444.47+202232.2	QSO	267.9″	—
SDSS J004508.88+202736.1	QSO	391.1″	—
SDSS J004405.95+202354.1	QSO	527.8″	—
SDSS J004455.61+203511.5	QSO	535.3″	—

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-4203-1474902 · Registry entry updated 2026-08-14.