UPSA Object Registry
Registry · deep sky

WASP-4

HighPM* SIMBAD PM* G7V 197 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
23h 34m 15.09s
Declination
−42° 03′ 41.0″
Galactic l, b
344.49, -68.3
Magnitude V
12.48
Parallax
3.6623 mas
Redshift z
0.00019629
Radial velocity
58.84 km/s
Proper motion
9.95, -87.62 mas/yr

Also known as

1 identifiers

WASP-4

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 12 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.899 M_sun ± 0.033 NASA Exoplanet Archive Baştürk et al. 2025 2025
0.93 M_sun NASA Exoplanet Archive Baluev et al. 2020 2020
0.864 M_sun ± 0.084 NASA Exoplanet Archive Bouma et al. 2019 2019
0.89 M_sun ± 0.01 NASA Exoplanet Archive Bonomo et al. 2017 2017
0.87 M_sun ± 0.53 NASA Exoplanet Archive Stassun et al. 2017 2017
0.97 M_sun ± 0.1505 NASA Exoplanet Archive TICv8 2015
0.92 M_sun ± 0.07 NASA Exoplanet Archive Knutson et al. 2014 2014
0.89 M_sun ± 0.01 NASA Exoplanet Archive Petrucci et al. 2013 2013
0.927 M_sun ± 0.056 NASA Exoplanet Archive Southworth 2012 2012
0.914 M_sun ± 0.071 NASA Exoplanet Archive Southworth 2010 2010
0.93 M_sun ± 0.054 NASA Exoplanet Archive Triaud et al. 2010 2010
0.94 M_sun ± 0.073 NASA Exoplanet Archive Southworth et al. 2009 2009

Radius 13 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.912 R_sun ± 0.007 NASA Exoplanet Archive Baştürk et al. 2025 2025
0.9019 R_sun ± 0.0047 NASA Exoplanet Archive Baluev et al. 2020 2020
0.893 R_sun ± 0.034 NASA Exoplanet Archive Bouma et al. 2019 2019
0.92 R_sun ± 0.06 NASA Exoplanet Archive Bonomo et al. 2017 2017
0.9 R_sun ± 0.18 NASA Exoplanet Archive Stassun et al. 2017 2017
0.894974 R_sun ± 0.04645 NASA Exoplanet Archive TICv8 2015
0.92 R_sun ± 0.06 NASA Exoplanet Archive Petrucci et al. 2013 2013
0.907 R_sun ± 0.014 NASA Exoplanet Archive Hoyer et al. 2013 2013
0.91 R_sun ± 0.019 NASA Exoplanet Archive Southworth 2012 2012
0.905 R_sun ± 0.023 NASA Exoplanet Archive Southworth 2010 2010
0.903 R_sun ± 0.016 NASA Exoplanet Archive Triaud et al. 2010 2010
0.914 R_sun ± 0.024 NASA Exoplanet Archive Southworth et al. 2009 2009
Show the remaining 1
ValueUnitUncertainty Band / methodSourceReferenceYear
0.894974 R_sun ± 0.05555 NASA Exoplanet Archive ExoFOP 2007

Effective temperature 10 values

ValueUnitUncertainty Band / methodSourceReferenceYear
5,400 K ± 90 NASA Exoplanet Archive Bouma et al. 2019 2019
5,436 K ± 34 NASA Exoplanet Archive Bonomo et al. 2017 2017
5,500 K ± 150 NASA Exoplanet Archive Stassun et al. 2017 2017
5,504 K ± 125.8 NASA Exoplanet Archive TICv8 2015
5,436 K ± 34 NASA Exoplanet Archive Petrucci et al. 2013 2013
5,540 K ± 55 NASA Exoplanet Archive Southworth 2012 2012
5,500 K ± 100 NASA Exoplanet Archive Southworth 2010 2010
5,500 K ± 100 NASA Exoplanet Archive Triaud et al. 2010 2010
5,500 K ± 100 NASA Exoplanet Archive Southworth et al. 2009 2009
5,436 K NASA Exoplanet Archive ExoFOP 2007

Related objects

ObjectTypeRelation
WASP-4 b Exoplanethost

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
WASP-4 b Exoplanet 1.367″ 12.48
CRTS J233432.9-420121 RRLyrae 242.5″ 19.3
HD 221735 Star 409.4″ 9.24
TYC 8017-287-1 Star 535.1″ 11.05

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/wasp-4-11677724 · Registry entry updated 2026-08-14.