UPSA Object Registry
Registry · deep sky

XO-2 N

Star G8 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
07h 48m 06.42s
Declination
+50° 13′ 30.5″
Galactic l, b
168.29, 29.33
Distance
154.27 pc

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 9 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.96 M_sun ± 0.05 NASA Exoplanet Archive Ruggieri et al. 2024 2024
0.96 M_sun ± 0.05 NASA Exoplanet Archive Bonomo et al. 2017 2017
0.902 M_sun ± 0.1321 NASA Exoplanet Archive TICv8 2015
0.97 M_sun ± 0.05 NASA Exoplanet Archive Damasso et al. 2015 2015
0.98 M_sun ± 0.02 NASA Exoplanet Archive Knutson et al. 2014 2014
0.971 M_sun NASA Exoplanet Archive Crouzet et al. 2012 2012
0.924 M_sun ± 0.093 NASA Exoplanet Archive Southworth 2012 2012
0.946 M_sun ± 0.071 NASA Exoplanet Archive Southworth 2010 2010
0.971 M_sun ± 0.034 NASA Exoplanet Archive Fernandez et al. 2009 2009

Radius 10 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.998 R_sun ± 0.033 NASA Exoplanet Archive Ruggieri et al. 2024 2024
0.998 R_sun ± 0.033 NASA Exoplanet Archive Bonomo et al. 2017 2017
1.08495 R_sun ± 0.08697 NASA Exoplanet Archive TICv8 2015
0.964 R_sun NASA Exoplanet Archive Zellem et al. 2015 2015
1.01 R_sun ± 0.1 NASA Exoplanet Archive Damasso et al. 2015 2015
0.99 R_sun ± 0.009 NASA Exoplanet Archive Crouzet et al. 2012 2012
0.962 R_sun ± 0.037 NASA Exoplanet Archive Southworth 2012 2012
0.97 R_sun ± 0.033 NASA Exoplanet Archive Southworth 2010 2010
0.976 R_sun ± 0.024 NASA Exoplanet Archive Fernandez et al. 2009 2009
1.08 R_sun ± 0.08 NASA Exoplanet Archive ExoFOP 2007

Effective temperature 10 values

ValueUnitUncertainty Band / methodSourceReferenceYear
5,290 K ± 18 NASA Exoplanet Archive Ruggieri et al. 2024 2024
5,340 K ± 32 NASA Exoplanet Archive Yalçınkaya et al. 2024 2024
5,332 K ± 57 NASA Exoplanet Archive Bonomo et al. 2017 2017
5,267 K ± 190.2 NASA Exoplanet Archive TICv8 2015
5,343 K NASA Exoplanet Archive Zellem et al. 2015 2015
5,332 K ± 57 NASA Exoplanet Archive Damasso et al. 2015 2015
5,340 K ± 50 NASA Exoplanet Archive Southworth 2012 2012
5,340 K ± 50 NASA Exoplanet Archive Southworth 2010 2010
5,340 K ± 80 NASA Exoplanet Archive Torres et al. 2008 2008
5,267 K ± 152.7 NASA Exoplanet Archive ExoFOP 2007

Related objects

ObjectTypeRelation
XO-2 N b Exoplanethost

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
XO-2 N b Exoplanet 0″ 11.25
BD+50 1471b Planet 2.434″ —
BD+50 1471 HighPM* 2.434″ 11.14
BD+50 1471Bb Planet 29.1″ —
BD+50 1471B HighPM* 29.1″ 11.09
BD+50 1471Bc Planet 29.1″ —
XO-2 S b Exoplanet 31.21″ 11.2
XO-2 S Star 31.21″ —
XO-2 S d Exoplanet 31.21″ 11.2
XO-2 S c Exoplanet 31.21″ 11.2
HD 233451 Star 143.3″ 10.19

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/xo-2-n · Registry entry updated 2026-08-14.