Key parameters at a glance
- A radius of 13.50 Earth radii
- A mass of 559.38 Earth masses
- Surface gravity around 3.07 g
- An orbital period of 43.000 days
- Distance from Earth 1,292.66 light-years
- Earth Similarity Index 0.354
- Travel time at Voyager 1 speed 22,796,068 years
2 siblings around 2MASS J19383260+4603591
Kepler-451 d shares its host star with 2 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-451 d this | Gas Giant | 13.50 | 559.38 | 43.000 | — | 2022 |
| 2MASS J19383260+4603591 b | Gas Giant | 13.40 | 603.88 | 406.000 | — | 2015 |
| Kepler-451 c | Gas Giant | 13.50 | 511.70 | 1,460.000 | — | 2022 |
Circumbinary planet
Kepler-451 d orbits a binary-star pair rather than a single host — a minority architecture in the confirmed catalogue.
Kepler-451 d Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#671of 1771
top 37.8%
This planet
13.50R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | Kepler-451 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.50 | 11.21 |
| Mass (M⊕) | 1.00 | 559.38 | 317.83 |
| Density (g/cm³) | 5.51 | 1.25 | 1.33 |
| Surface Gravity (g) | 1.00 | 3.07 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 559.378 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
TIC
TIC 271164763
Gaia DR2
Gaia DR2 2080063931448749824
Gaia DR3
Gaia DR3 2080063931448749824
System
2MASS J19383260+4603591
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 43.00 Earth days (11.8% of a terrestrial year) on a nearly circular orbit.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.354
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Esmer et al. 2022Instrument
Multiple Instruments
Publication
2022-04
Observation locale
Space
Discovery cohort
Planets confirmed in 2022 at Multiple Observatories (12 shown).
Host System: 2MASS J19383260+4603591
Spectral Class
B-type blue-white
Effective Temperature
29,564 K — hotter than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.203 R☉
Stellar Mass
0.480 M☉
Metallicity [Fe/H]
-0.09
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.495 mas
Total Proper Motion
6.965 mas/yr
PM Right Ascension
5.20 mas/yr
PM Declination
-4.64 mas/yr
Galactic Cartesian (pc)
x = 0.289 · y = -0.631 · z = 0.720
Equatorial (J2000)
RA 294.63592° · Dec 46.06641°
Galactic ℓ, b
79.019° · 11.674°
Ecliptic λ, β
314.705° · 65.725°
HTM-20 index
-1217063556
Similar Worlds
Kepler-451 c
Gas Giant · B-type blue-white
Radius 13.50 R⊕ · 1,292.7 ly
2MASS J19383260+4603591 b
Gas Giant · B-type blue-white
Radius 13.40 R⊕ · 1,292.7 ly
HD 97048 b
Gas Giant · B-type blue-white
Radius 13.30 R⊕ · 599.7 ly
ZTF J1230-2655 b
Gas Giant · B-type blue-white
Radius 13.79 R⊕ · 608.9 ly
V0391 Peg b
Gas Giant · B-type blue-white
Radius 13.10 R⊕ · 3,900.8 ly
DP Leo b
Gas Giant · B-type blue-white
Radius 12.70 R⊕ · 997.0 ly