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BD+20 2457 b

Host star BD+20 2457 • 379.6 d orbit

Records

2

archive rows

Discovery

—

Radial Velocity

Radius

—

median non-null value

Mass

1.22e4 M⊕

median non-null value

BD+20 2457

temperature unconstrained

Quick Summary

Fast scan of the current planet profile

This first pass still reads from the currently available detail payload. Canonical adopted summaries will replace first-row values in the next backend pass.

Host Star

BD+20 2457

Discovery

Radial Velocity

Year

2009

Period

379.6 day

Radius

—

Mass

1.77e4 Mearth

Eq. Temp

—

Provenance

Underlying measurements and references

Evidence Summary

Rows

2

Refs

2

Methods

1

Discoverystable

2 values • 1 distinct

Facilitystable

2 values • 1 distinct

Periodstable

2 values • 1 distinct

Massdisputed

2 values • 2 distinct

YearMethodFacilityTelescopePeriodRadiusMassEq. TempReference
2009Radial VelocityMcDonald Observatory9.2 m Hobby-Eberly Telescope379.6 day—1.77e4 Mearth—Stassun et al. 2017
2009Radial VelocityMcDonald Observatory9.2 m Hobby-Eberly Telescope379.6 day—6807.6 Mearth—Niedzielski et al. 2009