Key parameters at a glance
- A radius of 15.69 Earth radii
- A mass of 451.32 Earth masses
- Surface gravity around 1.83 g
- An orbital period of 3.197 days
- Semi-major axis 0.0470 AU
- Equilibrium temperature 2,360 K (2087 °C)
- Distance from Earth 1,266.23 light-years
- Earth Similarity Index 0.047
- Travel time at Voyager 1 speed 22,329,888 years
TOI-1295 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#184of 1771
top 10.3%
This planet
15.69R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | TOI-1295 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 15.69 | 11.21 |
| Mass (M⊕) | 1.00 | 451.32 | 317.83 |
| Density (g/cm³) | 5.51 | 0.65 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.83 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,800.00 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 451.316 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 219852584
Gaia DR2
Gaia DR2 1636690613486307840
Gaia DR3
Gaia DR3 1636690613486307840
System
TOI-1295
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.20 Earth days (0.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0470 AU.
Transit Fingerprint
Depth
0.796 %
Duration
6.200 h
Transit midpoint (BJD)
2,459,913.3800
Photometric dip
Transit produces a flux drop of 7,959 ppm lasting ≈ 6.20 h.
Extended Orbital Architecture
RV semi-amplitude (K)
158.000 m/s
Transit mid-time (BJD)
2,459,913.3800
Long. of periastron (ω)
80.00°
Angular separation (arcsec)
0.12100
Eq. Temperature
2,360K
(2087 °C)
Insolation (S⊕)
1,800.00
Earth = 1.00
Earth Similarity (ESI)
0.047
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
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
Primary reference
Ehrhardt et al. 2024Instrument
TESS CCD Array
Publication
2024-12
Observation locale
Space
Discovery cohort
Planets confirmed in 2024 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-1295
Spectral Class
F-type yellow-white
Effective Temperature
6,280 K — hotter than the Sun (5,778 K)
Estimated Age
2.00 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.700 R☉
Stellar Mass
1.380 M☉
Metallicity [Fe/H]
0.26
Extended Stellar Properties
Surface gravity (log g)
4.100 dex
Stellar density
0.457 g/cm³
Rotational v·sin i
7.80 km/s
Rotation period
11.00 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
2.547 mas
Total Proper Motion
11.224 mas/yr
PM Right Ascension
-7.35 mas/yr
PM Declination
8.48 mas/yr
Galactic Cartesian (pc)
x = -0.087 · y = -0.367 · z = 0.926
Equatorial (J2000)
RA 256.67220° · Dec 67.87150°
Galactic ℓ, b
98.632° · 34.774°
Ecliptic λ, β
159.660° · 84.686°
HTM-20 index
-1436682285
Similar Worlds
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