Discovery
Transit
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
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
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
Evidence Summary
Rows
2
Refs
2
Methods
1
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2024 | Transit | Transiting Exoplanet Survey Satellite (TESS) | 0.1 m TESS Telescope | 25.13 day | 2.70 Rearth | 17.70 Mearth | 637 K | Nies et al. 2024 |
| 2024 | Transit | Transiting Exoplanet Survey Satellite (TESS) | 0.1 m TESS Telescope | 25.13 day | 1.93 Rearth | — | 627 K | ExoFOP |