UPSA Object Registry
Registry · exoplanet

K2-102 b

Exoplanet 19 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
08h 40m 13.41s
Declination
+19° 46′ 43.5″
Galactic l, b
205.78, 32.48
Magnitude V
13.08
Distance
188.18 pc

Also known as

1 identifiers

K2-102b

Planet

NASA Exoplanet Archive, composite parameters
Host starK2-102 · K3V
DiscoveryTransit, 2016 · K2
Orbital period9.91562 d
Semi-major axis— au
Eccentricity0.1
Radius1.3 R⊕ · 0.116 R♃
Mass2.24 M⊕ · 0.00705 M♃
Density5.6 g/cm³
Equilibrium temperature— K
System distance188.18 pc

Recorded parameters

2 quantities with a single published value
ParameterValueUnitUncertainty As publishedSourceReference
Radius 1.3 R_earth ± 0.1 Transit NASA Exoplanet Archive Mann et al. 2017
Eccentricity 0.1 ± 0.16 Transit NASA Exoplanet Archive Mann et al. 2017

Published measurements

1 quantity 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.

Orbital period 2 values

ValueUnitUncertainty Band / methodSourceReferenceYear
9.9147 d Transit NASA Exoplanet Archive Rizzuto et al. 2017 2017
9.915615 d ± 0.001209 Transit NASA Exoplanet Archive Mann et al. 2017 2017

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
K2-102 Star 0.5806″ 13.2
Cl* NGC 2632 HSHJ 304 Star 53.74″ —
BD+20 2162 Star 67.35″ 9.941
Cl* NGC 2632 JC 194 Eruptive* 107.6″ 16.06
Cl* NGC 2632 JC 184 Eruptive* 132.2″ 12.03
Cl* NGC 2632 JC 185 Star 145.4″ 14.61
AG+19 872 Star 206.4″ 10.27
BD+20 2157 Star 214.9″ 9.79
HD 73730 Star 247.1″ 7.99
SDSS J084005.83+194243.1 QSO 263.1″ —
EGGR 61 WhiteDwarf 280.5″ 17.66

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/k2-102-b · Registry entry updated 2026-08-14.