UPSA Object Registry
Registry · deep sky

Kepler-166

Eruptive* SIMBAD Er* K1 57 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
19h 32m 38.43s
Declination
+48° 52′ 52.4″
Galactic l, b
81.149, 13.82
Magnitude V
14.93
Parallax
1.6479 mas
Redshift z
-0.00020235
Radial velocity
-60.67 km/s
Proper motion
-6.685, -2.727 mas/yr

Also known as

1 identifiers

Kepler-166

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 8 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.811 M_sun ± 0.025 NASA Exoplanet Archive Fulton & Petigura 2018 2018
0.89 M_sun NASA Exoplanet Archive TICv8 2016
0.88 M_sun ± 0.04 NASA Exoplanet Archive Morton et al. 2016 2016
0.835 M_sun ± 0.08 NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2016
0.879 M_sun ± 0.078 NASA Exoplanet Archive Q1-Q8 KOI Table 2016
0.819 M_sun ± 0.104 NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2016
0.819 M_sun ± 0.104 NASA Exoplanet Archive Q1-Q12 KOI Table 2016
0.819 M_sun ± 0.104 NASA Exoplanet Archive Q1-Q16 KOI Table 2016

Radius 10 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.771 R_sun ± 0.023 NASA Exoplanet Archive Fulton & Petigura 2018 2018
0.782 R_sun ± 0.036 NASA Exoplanet Archive Berger et al. 2018 2018
0.781826 R_sun NASA Exoplanet Archive TICv8 2016
0.83 R_sun ± 0.064 NASA Exoplanet Archive Morton et al. 2016 2016
0.746 R_sun ± 0.145 NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2016
0.78 R_sun ± 0.45 NASA Exoplanet Archive Q1-Q8 KOI Table 2016
0.759 R_sun ± 0.235 NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2016
0.759 R_sun ± 0.235 NASA Exoplanet Archive Q1-Q12 KOI Table 2016
0.759 R_sun ± 0.235 NASA Exoplanet Archive Q1-Q16 KOI Table 2016
0.742 R_sun ± 0.382 NASA Exoplanet Archive Rowe et al. 2014 2014

Effective temperature 10 values

ValueUnitUncertainty Band / methodSourceReferenceYear
5,175 K ± 60 NASA Exoplanet Archive Fulton & Petigura 2018 2018
5,175 K ± 103 NASA Exoplanet Archive Berger et al. 2018 2018
5,230 K ± 122 NASA Exoplanet Archive TICv8 2016
5,350 K ± 71.67 NASA Exoplanet Archive Morton et al. 2016 2016
5,409 K ± 162 NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2016
5,432 K ± 73 NASA Exoplanet Archive Q1-Q8 KOI Table 2016
5,413 K ± 173 NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2016
5,413 K ± 173 NASA Exoplanet Archive Q1-Q12 KOI Table 2016
5,413 K ± 173 NASA Exoplanet Archive Q1-Q16 KOI Table 2016
5,413 K ± 200 NASA Exoplanet Archive Rowe et al. 2014 2014

Related objects

ObjectTypeRelation
Kepler-166 b Exoplanethost
Kepler-166 c Exoplanethost
Kepler-166 d Exoplanethost

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
Kepler-166 c Exoplanet 0.1118″ 14.86
Kepler-166 d Exoplanet 0.1118″ 14.86
Kepler-166 b Exoplanet 0.1118″ 14.86
2MASS J19324175+4853134 Star 38.86″ —
BD+48 2912 delSctV* 81.09″ 9.48
UCAC4 695-067480 RGB* 137.2″ 14.09
ATO J293.1062+48.8670 Eruptive* 137.3″ —
TYC 3564-2894-1 Star 184.4″ 11.45
ATO J293.1827+48.8250 EclBin 209.1″ 16.2
2MASS J19325637+4850506 Star 214.8″ —
TYC 3564-2527-1 Star 237.6″ 12.04

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-166-7822138 · Registry entry updated 2026-08-14.