Discovery
Transit
Host star TRAPPIST-1 • 1.04 R⊕ • 9.21 d orbit
Records
5
archive rows
Discovery
—
Transit
Radius
1.04 R⊕
median non-null value
Mass
0.93 M⊕
median non-null value
TRAPPIST-1
218.3 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
TRAPPIST-1
Discovery
Transit
Year
2017
Period
9.21 day
Radius
1.04 Rearth
Mass
0.68 Mearth
Eq. Temp
219 K
Scale Comparison
Current adopted radius: 1.04 R⊕ • circles scaled linearly by radius
Earth
1.0 R⊕ baseline
TRAPPIST-1 f
1.04 R⊕
Jupiter
11.2 R⊕ reference
Provenance
Evidence Summary
Rows
5
Refs
5
Methods
1
| Year | Method | Facility | Telescope | Period | Radius | Mass | Eq. Temp | Reference |
|---|---|---|---|---|---|---|---|---|
| 2017 | Transit | Multiple Observatories | Multiple Telescopes | 9.21 day | 1.04 Rearth | 0.68 Mearth | 219 K | Gillon et al. 2017 |
| 2017 | Transit | Multiple Observatories | Multiple Telescopes | — | 1.05 Rearth | 0.93 Mearth | — | Grimm et al. 2018 |
| 2017 | Transit | Multiple Observatories | Multiple Telescopes | 9.21 day | — | — | 217.7 K | Ducrot et al. 2020 |
| 2017 | Transit | Multiple Observatories | Multiple Telescopes | 9.21 day | — | — | — | Hirano et al. 2020 |
| 2017 | Transit | Multiple Observatories | Multiple Telescopes | 9.21 day | 1.04 Rearth | 1.04 Mearth | — | Agol et al. 2021 |