Key parameters at a glance
- A radius of 11.13 Earth radii
- A mass of 6,356.57 Earth masses
- Surface gravity around 51.31 g
- An orbital period of 0.112 days
- Distance from Earth 658.27 light-years
- Earth Similarity Index 0.273
- Travel time at Voyager 1 speed 11,608,606 years
ZTF J1828+2308 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1647of 1771
top 92.9%
This planet
11.13R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | ZTF J1828+2308 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 11.13 | 11.21 |
| Mass (M⊕) | 1.00 | 6,356.57 | 317.83 |
| Density (g/cm³) | 5.51 | 25.30 | 1.33 |
| Surface Gravity (g) | 1.00 | 51.31 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 6,356.568 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 1685332572
Gaia DR2
Gaia DR2 4529477698683435264
Gaia DR3
Gaia DR3 4529477698683435264
System
ZTF J1828+2308
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts roughly 2.7 hours long.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.273
0 = alien, 1 = Earth-identical
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Discovery Paper
Host System: ZTF J1828+2308
Spectral Class
B-type blue-white
Effective Temperature
15,900 K — hotter than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.013 R☉
Stellar Mass
0.610 M☉
Metallicity [Fe/H]
—
Astrometric Data
Parallax
4.933 mas
Total Proper Motion
20.744 mas/yr
PM Right Ascension
-5.97 mas/yr
PM Declination
-19.87 mas/yr
Galactic Cartesian (pc)
x = 0.115 · y = -0.912 · z = 0.393
Equatorial (J2000)
RA 277.20319° · Dec 23.14391°
Galactic ℓ, b
51.562° · 15.063°
Ecliptic λ, β
279.610° · 46.343°
HTM-20 index
1125999480
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