Key parameters at a glance
- A radius of 1.79 Earth radii
- A mass of 9.95 Earth masses
- Surface gravity around 3.10 g
- An orbital period of 0.605 days
- Semi-major axis 0.0116 AU
- Equilibrium temperature 1,323 K (1050 °C)
- Distance from Earth 200.45 light-years
- Earth Similarity Index 0.192
- Travel time at Voyager 1 speed 3,534,986 years
- Almost certainly tidally locked to its host star given the close orbit
TOI-1075 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#270of 1176
top 22.9%
This planet
1.79R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | TOI-1075 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.79 | 11.21 |
| Mass (M⊕) | 1.00 | 9.95 | 317.83 |
| Density (g/cm³) | 5.51 | 9.32 | 1.33 |
| Surface Gravity (g) | 1.00 | 3.10 | 2.53 |
| Insolation (S⊕) | 1.00 | 509.20 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 9.950 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 351601843
Gaia DR2
Gaia DR2 6426188308031756288
Gaia DR3
Gaia DR3 6426188308031756288
System
TOI-1075
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts roughly 14.5 hours long on a nearly circular orbit at a mean orbital distance of 0.0116 AU.
Transit Fingerprint
Depth
0.103 %
Duration
1.040 h
Impact parameter b
0.400
Rp / R★
0.028200
Transit midpoint (BJD)
2,458,654.2510
Photometric dip
Transit produces a flux drop of 1,028 ppm lasting ≈ 1.04 h.
Extended Orbital Architecture
Planet / star radius ratio
0.028200
Semi-major axis / stellar radius
4.400
Impact parameter (b)
0.400
RV semi-amplitude (K)
10.950 m/s
Transit mid-time (BJD)
2,458,654.2510
Angular separation (arcsec)
0.18900
Eq. Temperature
1,323K
(1050 °C)
Insolation (S⊕)
509.20
Earth = 1.00
Earth Similarity (ESI)
0.192
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. Close-orbiting tidally-locked around a cool host.
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
Giacalone et al. 2022Instrument
TESS CCD Array
Publication
2022-02
Observation locale
Space
Discovery cohort
Planets confirmed in 2022 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).
Host System: TOI-1075
Spectral Class
K-type orange
Effective Temperature
3,875 K — cooler than the Sun (5,778 K)
Estimated Age
6.00 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.581 R☉
Stellar Mass
0.604 M☉
Metallicity [Fe/H]
-0.08
Extended Stellar Properties
Surface gravity (log g)
4.690 dex
Stellar density
3.730 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
16.242 mas
Total Proper Motion
116.368 mas/yr
PM Right Ascension
-99.74 mas/yr
PM Declination
-59.95 mas/yr
Galactic Cartesian (pc)
x = 0.267 · y = -0.318 · z = -0.910
Equatorial (J2000)
RA 309.97121° · Dec -65.44970°
Galactic ℓ, b
330.017° · -35.682°
Ecliptic λ, β
292.199° · -45.063°
HTM-20 index
-1403288144
Similar Worlds
Kepler-768 b
Super-Earth · K-type orange
Radius 1.79 R⊕ · 2,558.9 ly
Kepler-305 e
Super-Earth · K-type orange
Radius 1.79 R⊕ · 2,832.6 ly
Kepler-1794 b
Super-Earth · K-type orange
Radius 1.79 R⊕ · 1,830.5 ly
K2-155 b
Super-Earth · K-type orange
Radius 1.80 R⊕ · 237.4 ly
TOI-2427 b
Super-Earth · K-type orange
Radius 1.80 R⊕ · 93.0 ly
Kepler-1353 b
Super-Earth · K-type orange
Radius 1.80 R⊕ · 1,935.4 ly