UPSA Object Registry
Registry · deep sky

55 Cnc B

Star M4.5 V
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
08h 52m 40.30s
Declination
+28° 18′ 55.0″
Galactic l, b
196.82, 37.71
Distance
12.477 pc

Recorded parameters

3 quantities with a single published value
ParameterValueUnitUncertainty As publishedSourceReference
Mass 0.26 M_sun ± 0.02 NASA Exoplanet Archive Moutou et al. 2026
Radius 0.274 R_sun ± 0.066 NASA Exoplanet Archive Moutou et al. 2026
Effective temperature 3,286 K ± 31 NASA Exoplanet Archive Moutou et al. 2026

Related objects

ObjectTypeRelation
55 Cnc B b Exoplanethost
55 Cnc B c Exoplanethost

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
55 Cnc B c Exoplanet 0″ 13.15
55 Cnc B b Exoplanet 0″ 13.15
* rho01 Cnc B HighPM* 8.367″ —
* rho01 Cnc f Planet 81.47″ —
* rho01 Cnc e Planet 81.47″ —
* rho01 Cnc HighPM* 81.47″ —
* rho01 Cnc b Planet 81.47″ —
* rho01 Cnc c Planet 81.47″ —
* rho01 Cnc d Planet 81.47″ —
55 Cnc Star 84.82″ —
55 Cnc b Exoplanet 84.82″ 5.951

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/55-cnc-b-2 · Registry entry updated 2026-08-14.