UPSA Object Registry
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Ross 128

HighPM* SIMBAD PM* dM4 490 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
11h 47m 44.40s
Declination
+00° 48′ 16.4″
Galactic l, b
270.15, 59.56
Magnitude V
11.15
Parallax
296.31 mas
Redshift z
-0.00010227
Radial velocity
-30.66 km/s
Proper motion
607.3, -1,223 mas/yr

Also known as

59 identifiers

1RXS J114744.7+0048312E 1145.1+01052E 25322MASS J11474440+00481648pc 299.58AP J11474440+0048164ASCC 1136005Ci 20 662CNS5 2890EPIC 201518346V* FI VirG 10-50G 11-22Gaia DR1 3796072587910775936Gaia DR2 3796072592206250624Gaia DR3 3796072592206250624GAT 1131GAT 1132GCRV 7139GEN# +6.10010447GJ 447GSC 00272-00665GSC 00272-01051HIC 57548HIP 57548IRAS 11451+0105JP11 5144JP11 5145JP11 5186Karmn J11477+008LFT 852LHS 315LSPM J1147+0048LTT 13240MCC 286NLTT 28570PLX 2730PLX 2730.00PM 11452+0106PM J11477+0048Ross 128RX J1147.7+0048TIC 325275315TIC 471011718TYC 272-1051-1UBV M 42951UCAC2 32039206UCAC4 455-052049USNO 615USNO 840VVO 214WEB 10335WISEA J114744.81+004803.7Zkh 169CSI+01-11451[GKL99] 248[RHG95] 1849USNO-B1.0 0908-00204201[ZEH2003] RX J1147.7+0048 1

Recorded parameters

3 quantities with a single published value
ParameterValueUnitUncertainty As publishedSourceReference
Mass 0.168 M_sun ± 0.017 NASA Exoplanet Archive Bonfils et al. 2018
Radius 0.1967 R_sun ± 0.0077 NASA Exoplanet Archive Bonfils et al. 2018
Effective temperature 3,192 K ± 60 NASA Exoplanet Archive Bonfils et al. 2018

Related objects

ObjectTypeRelation
Ross 128 b Exoplanethost

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
GJ 447 b Planet 0.003074″ —
Ross 128 b Exoplanet 21.17″ 11.12
GAT 1134 RGB* 201.4″ 13.13
CRTS J114758.2+004845 EclBin 210.9″ 15.43
2MASS J11474948+0051345 RGB* 212.2″ —
LEDA 1177591 Galaxy 217.8″ —
UCAC4 454-050449 Star 282.1″ 14.09
SDSS J114805.91+004754.6 Galaxy 323.5″ —
LBQS 1145+0100 WhiteDwarf 325.9″ —
SDSS J114749.65+004233.0 Galaxy 352.2″ —
UCAC4 455-052035 Star 382.4″ 14.22

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/ross-128-1847655 · Registry entry updated 2026-08-14.