Key parameters at a glance
- A radius of 5.02 Earth radii
- A mass of 22.25 Earth masses
- Surface gravity around 0.88 g
- Semi-major axis 1.1500 AU
- Distance from Earth 22,178.61 light-years
- Earth Similarity Index 0.475
- Travel time at Voyager 1 speed 391,119,730 years
KMT-2021-BLG-2294L b Planet Profile
Physical Specs
Classification
Planet Type
Neptune-like
Discovery
Size rank in cohort
Rank by radius
#380of 574
top 66.0%
This planet
5.02R⊕
Neptune-like median
6.39R⊕
Nearest-size peers
| Metric | Earth | KMT-2021-BLG-2294L b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 5.02 | 11.21 |
| Mass (M⊕) | 1.00 | 22.25 | 317.83 |
| Density (g/cm³) | 5.51 | 0.97 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.88 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 22.248 M⊕ | Direct mass measurement (not derived). |
Percentile among Neptune-like cohort
Orbit & Habitability
Orbital Dynamics
Year Length
Orbital period for this planet has not yet been measured.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.475
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Shin et al. 2022Instrument
18k Mosaic CCD camera
Publication
2022-09
Observation locale
Ground
Discovery cohort
Planets confirmed in 2022 at KMTNet (12 shown).
Host System: KMT-2021-BLG-2294L
Spectral Class
Unknown
Effective Temperature
—
Estimated Age
—
Stellar Radius
—
Stellar Mass
0.140 M☉
Metallicity [Fe/H]
—
Similar Worlds
KMT-2021-BLG-0736L b
Neptune-like · Unknown
Radius 4.86 R⊕ · 22,830.9 ly
MOA-2008-BLG-310L b
Neptune-like · Unknown
Radius 5.18 R⊕ · 25,114.0 ly
OGLE-2015-BLG-0966L b
Neptune-like · Unknown
Radius 4.86 R⊕ · 10,763.1 ly
KMT-2017-BLG-1057L b
Neptune-like · Unknown
Radius 5.19 R⊕ · 21,200.1 ly
OGLE-2018-BLG-0516L b
Neptune-like · Unknown
Radius 4.73 R⊕ · 22,830.9 ly
OGLE-2007-BLG-368L b
Neptune-like · Unknown
Radius 4.72 R⊕ · 19,243.2 ly