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ExoplanetDetail

HD 21520 b

Host star HD 21520 • 2.31 R⊕ • 25.13 d orbit

Records

2

archive rows

Discovery

Transit

Radius

2.31 R⊕

median non-null value

Mass

17.70 M⊕

median non-null value

HD 21520

632 K equilibrium

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

HD 21520

Discovery

Transit

Year

2024

Period

25.13 day

Radius

2.70 Rearth

Mass

17.70 Mearth

Eq. Temp

637 K

Scale Comparison

Radius against familiar reference worlds

Current adopted radius: 2.31 R⊕ • circles scaled linearly by radius

Earth

1.0 R⊕ baseline

HD 21520 b

2.31 R⊕

Jupiter

11.2 R⊕ reference

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

Radiusdisputed

2 values • 2 distinct

Massstable

1 values • 1 distinct

Eq. Tempdisputed

2 values • 2 distinct

YearMethodFacilityTelescopePeriodRadiusMassEq. TempReference
2024TransitTransiting Exoplanet Survey Satellite (TESS)0.1 m TESS Telescope25.13 day2.70 Rearth17.70 Mearth637 KNies et al. 2024
2024TransitTransiting Exoplanet Survey Satellite (TESS)0.1 m TESS Telescope25.13 day1.93 Rearth627 KExoFOP