Key parameters at a glance
- A radius of 1.27 Earth radii
- A mass of 2.15 Earth masses
- Surface gravity around 1.33 g
- An orbital period of 1.042 days
- Semi-major axis 0.0171 AU
- Equilibrium temperature 1,118 K (845 °C)
- Distance from Earth 136.06 light-years
- Earth Similarity Index 0.274
- Travel time at Voyager 1 speed 2,399,335 years
- Almost certainly tidally locked to its host star given the close orbit
TOI-833 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#1135of 1176
top 96.4%
This planet
1.27R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | TOI-833 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.27 | 11.21 |
| Mass (M⊕) | 1.00 | 2.15 | 317.83 |
| Density (g/cm³) | 5.51 | 5.77 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.33 | 2.53 |
| Insolation (S⊕) | 1.00 | 270.07 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 362249359
Gaia DR2
Gaia DR2 5250780970316845696
Gaia DR3
Gaia DR3 5250780970316845696
System
TOI-833
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.04 Earth days (0.3% of a terrestrial year) at a mean orbital distance of 0.0171 AU.
Transit Fingerprint
Depth
0.047 %
Duration
1.274 h
Impact parameter b
0.310
Transit midpoint (BJD)
2,458,597.2560
Photometric dip
Transit produces a flux drop of 465 ppm lasting ≈ 1.27 h.
Eq. Temperature
1,118K
(845 °C)
Insolation (S⊕)
270.07
Earth = 1.00
Earth Similarity (ESI)
0.274
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.
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-833
Spectral Class
K-type orange
Effective Temperature
3,920 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.600 R☉
Stellar Mass
0.610 M☉
Metallicity [Fe/H]
—
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
23.943 mas
Total Proper Motion
176.291 mas/yr
PM Right Ascension
-157.24 mas/yr
PM Declination
79.72 mas/yr
Galactic Cartesian (pc)
x = -0.382 · y = 0.261 · z = -0.887
Equatorial (J2000)
RA 145.64547° · Dec -62.47589°
Galactic ℓ, b
282.943° · -7.181°
Ecliptic λ, β
196.563° · -66.545°
HTM-20 index
-737373845
Similar Worlds
K2-233 c
Super-Earth · K-type orange
Radius 1.27 R⊕ · 220.2 ly
K2-165 b
Super-Earth · K-type orange
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K2-203 b
Super-Earth · K-type orange
Radius 1.27 R⊕ · 541.9 ly
Kepler-1688 b
Super-Earth · K-type orange
Radius 1.26 R⊕ · 1,850.8 ly
Kepler-755 c
Super-Earth · K-type orange
Radius 1.26 R⊕ · 1,301.5 ly
Kepler-1037 b
Super-Earth · K-type orange
Radius 1.28 R⊕ · 1,457.6 ly