UPSA Object Registry
Registry · deep sky

alf Tau

Star K5 III
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
04h 35m 55.24s
Declination
+16° 30′ 33.1″
Galactic l, b
180.97, -20.25
Distance
20.433 pc

Recorded parameters

3 quantities with a single published value
ParameterValueUnitUncertainty As publishedSourceReference
Mass 1.13 M_sun ± 0.11 NASA Exoplanet Archive Hatzes et al. 2015
Radius 45.1 R_sun ± 0.1 NASA Exoplanet Archive Hatzes et al. 2015
Effective temperature 4,055 K ± 70 NASA Exoplanet Archive Hatzes et al. 2015

Related objects

ObjectTypeRelation
alf Tau b Exoplanethost

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
alf Tau b Exoplanet 0″ 0.872
* alf Tau LongPeriodV* Candidate 0.3669″ 0.86
* alf Tau b Planet 0.3669″ —
* alf Tau B HighPM* 31.15″ 13.6
BD+16 630 ** 133.3″ 10.71
HD 285910 Star 340.7″ 10.59
G 83-21 HighPM* 480.2″ —

Provenance

where this card came from
ArchiveRead at (UTC)Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/alf-tau · Registry entry updated 2026-08-14.