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ExoplanetDetail

HR 858 c

Host star HR 858 • 1.98 R⊕ • 5.97 d orbit

Records

3

archive rows

Discovery

Transit

Radius

1.98 R⊕

median non-null value

Mass

3.80 M⊕

median non-null value

HR 858

1309 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

HR 858

Discovery

Transit

Year

2019

Period

5.97 day

Radius

1.98 Rearth

Mass

3.80 Mearth

Eq. Temp

1309 K

Scale Comparison

Radius against familiar reference worlds

Current adopted radius: 1.98 R⊕ • circles scaled linearly by radius

Earth

1.0 R⊕ baseline

HR 858 c

1.98 R⊕

Jupiter

11.2 R⊕ reference

Provenance

Underlying measurements and references

Evidence Summary

Rows

3

Refs

3

Methods

1

Discoverystable

3 values • 1 distinct

Facilitystable

3 values • 1 distinct

Periodstable

3 values • 1 distinct

Radiusdisputed

3 values • 3 distinct

Massstable

1 values • 1 distinct

Eq. Tempdisputed

3 values • 3 distinct

YearMethodFacilityTelescopePeriodRadiusMassEq. TempReference
2019TransitTransiting Exoplanet Survey Satellite (TESS)0.1 m TESS Telescope5.97 day1.98 Rearth3.80 Mearth1309 KBonfanti et al. 2025
2019TransitTransiting Exoplanet Survey Satellite (TESS)0.1 m TESS Telescope5.97 day1.94 Rearth1326 KVanderburg et al. 2019
2019TransitTransiting Exoplanet Survey Satellite (TESS)0.1 m TESS Telescope5.97 day2.39 Rearth1198.7 KExoFOP