Confirmed Exoplanet Discovered 2023

TOI-2095 b

A super-earth orbiting the m-type red dwarf TOI-2095, located approximately 136.7 light-years from Earth.

Key parameters at a glance

  • A radius of 1.25 Earth radii
  • A mass of 4.10 Earth masses
  • Surface gravity around 2.62 g
  • An orbital period of 17.665 days
  • Semi-major axis 0.1010 AU
  • Equilibrium temperature 347 K (74 °C)
  • Distance from Earth 136.72 light-years
  • Earth Similarity Index 0.753
  • Travel time at Voyager 1 speed 2,411,000 years
  • Almost certainly tidally locked to its host star given the close orbit

1 sibling around TOI-2095

TOI-2095 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet Type Radius (R⊕) Mass (M⊕) Period (d) Eq. T (K) Year
TOI-2095 b this Super-Earth 1.25 4.10 17.665 347 2023
TOI-2095 c Super-Earth 1.33 7.40 28.172 297 2023

TOI-2095 b Planet Profile

Physical Specs

Radius
1.25 R⊕
Radius (Jupiter)
0.112 R♃
Mass
4.10 M⊕
Mass (Jupiter)
0.013 M♃
Density
g/cm³
Surface Gravity
2.62 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.753
HZ Position Inner
Controversial No

Discovery

Year 2023
Method Transit
Facility Transiting Exoplanet Survey Satellite (TESS)
Telescope 0.1 m TESS Telescope

Size rank in cohort

Rank by radius

#1161of 1176

top 98.6%

This planet

1.25R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth TOI-2095 b Jupiter
Radius (R⊕)1.001.2511.21
Mass (M⊕)1.004.10317.83
Density (g/cm³)5.511.33
Surface Gravity (g)1.002.622.53
Insolation (S⊕)1.003.430.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 4.100 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 235678745

Gaia DR2

Gaia DR2 2268372099615724288

Gaia DR3

Gaia DR3 2268372099615724288

System

TOI-2095

Percentile among Super-Earth cohort

Radius 1.250 R⊕ · percentile 0 / cohort 1176
Mass 4.100 M⊕ · percentile 77 / cohort 1176
Orbital period 17.66 d · percentile 82 / cohort 1164
Distance 41.92 pc · percentile 9 / cohort 1171
ESI 0.753 · percentile 87 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
17.665 days
Semi-major axis
0.1010 AU
Eccentricity
0.000
Inclination
89.67 °

Year Length

A year here lasts approximately 17.66 Earth days (4.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1010 AU.

Transit Fingerprint

Depth

0.074 %

Duration

2.765 h

Impact parameter b

0.285

Rp / R★

0.026000

Transit midpoint (BJD)

2,459,240.4115

Photometric dip

Transit produces a flux drop of 736 ppm lasting ≈ 2.76 h.

Extended Orbital Architecture

Planet / star radius ratio

0.026000

Semi-major axis / stellar radius

49.220

Impact parameter (b)

0.285

RV semi-amplitude (K)

0.540 m/s

Transit mid-time (BJD)

2,459,240.4115

Long. of periastron (ω)

-17.00°

Angular separation (arcsec)

2.41000

Eq. Temperature

347K

(74 °C)

Insolation (S⊕)

3.43

Earth = 1.00

Earth Similarity (ESI)

0.753

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — liquid water is physically possible with adequate atmospheric pressure. Close-orbiting tidally-locked around a cool host.

Discovery Paper

Primary reference

Murgas et al. 2023

Instrument

TESS CCD Array

Publication

2023-04

Observation locale

Space

Host System: TOI-2095

Spectral Class

M-type red dwarf

Effective Temperature

3,759 K — cooler than the Sun (5,778 K)

Estimated Age

1.00 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.440 R☉

Stellar Mass

0.440 M☉

Metallicity [Fe/H]

-0.24

Extended Stellar Properties

Surface gravity (log g)

5.110 dex

Stellar density

7.230 g/cm³

Systemic radial velocity

-19.94 km/s

Rotation period

40.00 days

Metallicity ratio

[Fe/H]

Distance
41.92 parsec
Light-years 136.72 ly
V-band magnitude
13.19 mag
Voyager-speed travel 2,411,000 yr

Multi-band Host Photometry — 11 bands

8.714.414.36B13.19V12.09Gaia11.08TESS9.80J9.19H8.99K8.87W18.77W28.67W38.71W4

Astrometric Data

Parallax

23.827 mas

Total Proper Motion

204.554 mas/yr

PM Right Ascension

203.44 mas/yr

PM Declination

-21.32 mas/yr

Galactic Cartesian (pc)

x = 0.068 · y = -0.242 · z = 0.968

Equatorial (J2000)

RA 285.63652° · Dec 75.41851°

Galactic ℓ, b

106.756° · 25.496°

Ecliptic λ, β

67.336° · 79.856°

HTM-20 index

382112456

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