UPSA Object Registry
Registry · deep sky

Kepler-421

Star SIMBAD * G7 49 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
18h 53m 01.64s
Declination
+45° 05′ 16.0″
Galactic l, b
74.789, 18.58
Parallax
2.9019 mas
Redshift z
-8.474e-05
Radial velocity
-25.404 km/s
Proper motion
-3.889, -20.68 mas/yr

Also known as

1 identifiers

Kepler-421

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 6 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.777 M_sun ± 0.018 NASA Exoplanet Archive Fulton & Petigura 2018 2018
0.902 M_sun ± 0.1422 NASA Exoplanet Archive TICv8 2014
0.753 M_sun ± 0.066 NASA Exoplanet Archive Q1-Q16 KOI Table 2014
0.801 M_sun ± 0.029 NASA Exoplanet Archive Q1-Q8 KOI Table 2014
0.794 M_sun ± 0.03 NASA Exoplanet Archive Kipping et al. 2014 2014
0.753 M_sun ± 0.066 NASA Exoplanet Archive Q1-Q12 KOI Table 2014

Radius 7 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.834 R_sun ± 0.035 NASA Exoplanet Archive Berger et al. 2018 2018
0.827 R_sun ± 0.021 NASA Exoplanet Archive Fulton & Petigura 2018 2018
0.811702 R_sun ± 0.04639 NASA Exoplanet Archive TICv8 2014
0.818 R_sun ± 0.062 NASA Exoplanet Archive Q1-Q16 KOI Table 2014
0.787 R_sun ± 0.044 NASA Exoplanet Archive Q1-Q8 KOI Table 2014
0.757 R_sun ± 0.029 NASA Exoplanet Archive Kipping et al. 2014 2014
0.818 R_sun ± 0.062 NASA Exoplanet Archive Q1-Q12 KOI Table 2014

Effective temperature 7 values

ValueUnitUncertainty Band / methodSourceReferenceYear
5,224 K ± 104 NASA Exoplanet Archive Berger et al. 2018 2018
5,224 K ± 60 NASA Exoplanet Archive Fulton & Petigura 2018 2018
5,265.34 K ± 113.3 NASA Exoplanet Archive TICv8 2014
5,305 K ± 121 NASA Exoplanet Archive Q1-Q16 KOI Table 2014
5,310 K ± 50 NASA Exoplanet Archive Q1-Q8 KOI Table 2014
5,308 K ± 50 NASA Exoplanet Archive Kipping et al. 2014 2014
5,305 K ± 121 NASA Exoplanet Archive Q1-Q12 KOI Table 2014

Related objects

ObjectTypeRelation
Kepler-421 b Exoplanethost

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
Kepler-421 b Exoplanet 0.3261″ 13.61
2MASS J18530597+4505022 EclBin 47.95″ —
UCAC4 676-066255 RGB* 55.8″ 14.18
2MASS J18525659+4505559 ** 66.79″ —
2MASS J18530187+4508002 Star 164.2″ —
2MASS J18531796+4507139 Star 209.2″ —
ATO J283.3226+45.0401 RRLyrae 239.5″ —
2MASS J18524264+4507439 RGB* 249.7″ —
2MASS J18523880+4507107 Star 267.6″ —
2MASS J18532597+4506547 Star 276″ —
2MASS J18523553+4504264 Star 281″ —

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/kepler-421-8582653 · Registry entry updated 2026-08-14.