UPSA Object Registry
Registry · exoplanet

Kepler-51 e

Exoplanet
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 45m 55.14s
Declination
+49° 56′ 15.5″
Galactic l, b
83.113, 12.36
Magnitude V
14.88
Distance
783.83 pc

Planet

NASA Exoplanet Archive, composite parameters
Host starKepler-51 · G4
DiscoveryTransit Timing Variations, 2024 · Multiple Observatories
Orbital period264.284 d
Semi-major axis— au
Eccentricity0.02
Radius2.18 R⊕ · 0.195 R♃
Mass5.4 M⊕ · 0.01699 M♃
Density2.86 g/cm³
Equilibrium temperature— K
System distance783.83 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 2 values

ValueUnitUncertainty Band / methodSourceReferenceYear
5.4 M_earth ± 1.5 Transit Timing Variations NASA Exoplanet Archive Masuda et al. 2024 2024
3.8 M_earth ± 1.3 Transit Timing Variations NASA Exoplanet Archive Masuda et al. 2024 2024

Orbital period 2 values

ValueUnitUncertainty Band / methodSourceReferenceYear
264.284 d ± 0.905 Transit Timing Variations NASA Exoplanet Archive Masuda et al. 2024 2024
256.86 d ± 0.631 Transit Timing Variations NASA Exoplanet Archive Masuda et al. 2024 2024

Eccentricity 2 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.02 ± 0.015 Transit Timing Variations NASA Exoplanet Archive Masuda et al. 2024 2024
0.08 ± 0.032 Transit Timing Variations NASA Exoplanet Archive Masuda et al. 2024 2024

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
Kepler-51 b Exoplanet 0.003074″ 14.88
Kepler-51 d Exoplanet 0.003074″ 14.88
Kepler-51 c Exoplanet 0.003074″ 14.88
Kepler-51 Eruptive* 0.1156″ —
TYC 3565-883-1 delSctV* 119″ 11.56
2MASS J19460913+4955123 RGB* 149.2″ —
2MASS J19454178+4954095 Star 180.4″ —
KOI-5931 Star 188.5″ —
TYC 3565-1293-1 RGB* 191.1″ 12.02
TYC 3565-1235-1 HighPM* 203.6″ 9.84
UCAC4 700-070766 RGB* 211.3″ 13.8

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-51-e · Registry entry updated 2026-08-14.