Key parameters at a glance

A radius of 2.61 Earth radii
A mass of 7.32 Earth masses
Surface gravity around 1.07 g
An orbital period of 13.790 days
Equilibrium temperature 646 K (373 °C)
Distance from Earth 380.19 light-years
Earth Similarity Index 0.385
Travel time at Voyager 1 speed 6,704,655 years

TOI-2048 b Planet Profile

Physical Specs

Radius

2.61 R⊕

Radius (Jupiter)

0.233 R♃

Mass

7.32 M⊕

Mass (Jupiter)

0.023 M♃

Density

2.26 g/cm³

Surface Gravity

1.07 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.385

HZ Position Inner

Controversial No

Discovery

Year 2022

Method Transit

Facility Transiting Exoplanet Survey Satellite (TESS)

Telescope 0.1 m TESS Telescope

Size rank in cohort

Rank by radius

#999of 1978

top 50.5%

This planet

2.61R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-214 b 2.61 R⊕ GJ 143 b 2.61 R⊕ TOI-1422 c 2.61 R⊕

Metric	Earth	TOI-2048 b	Jupiter
Radius (R⊕)	1.00	2.61	11.21
Mass (M⊕)	1.00	7.32	317.83
Density (g/cm³)	5.51	2.26	1.33
Surface Gravity (g)	1.00	1.07	2.53
Insolation (S⊕)	1.00	29.04	0.037

Star Catalogue Identifiers

TIC

TIC 159873822

Gaia DR2

Gaia DR2 1404488390652463872

Gaia DR3

Gaia DR3 1404488390652463872

System

TOI-2048

Percentile among Sub-Neptune cohort

Radius 2.610 R⊕ · percentile 49 / cohort 1978

Mass 7.320 M⊕ · percentile 45 / cohort 1978

Orbital period 13.79 d · percentile 47 / cohort 1946

Distance 116.57 pc · percentile 23 / cohort 1975

ESI 0.385 · percentile 49 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

13.790 days

Semi-major axis

— AU

Eccentricity

0.130

Inclination

89.41 °

Year Length

A year here lasts approximately 13.79 Earth days (3.8% of a terrestrial year) on a mildly elliptical path.

Transit Fingerprint

Depth

0.114 %

Duration

3.301 h

Impact parameter b

0.330

Rp / R★

0.023900

Transit midpoint (BJD)

2,458,739.1174

Photometric dip

Transit produces a flux drop of 1,140 ppm lasting ≈ 3.30 h.

Extended Orbital Architecture

Planet / star radius ratio

0.023900

Semi-major axis / stellar radius

32.900

Impact parameter (b)

0.330

Transit mid-time (BJD)

2,458,739.1174

Eq. Temperature

646K

(373 °C)

Insolation (S⊕)

29.04

Earth = 1.00

Earth Similarity (ESI)

0.385

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

Discovery Paper

Primary reference

Newton et al. 2022

Instrument

TESS CCD Array

Publication

2022-09

Observation locale

Space

Discovery cohort

Planets confirmed in 2022 at Transiting Exoplanet Survey Satellite (TESS) (12 shown).

TOI-1452 b · Super-Earth TOI-712 d · Sub-Neptune TOI-1468 c · Sub-Neptune TOI-2136 b · Sub-Neptune LTT 1445 A c · Rocky Terrestrial TOI-712 c · Sub-Neptune LP 890-9 b · Super-Earth TOI-2081 b · Sub-Neptune GJ 3929 b · Rocky Terrestrial HD 260655 c · Super-Earth HD 73583 c · Sub-Neptune TOI-1759 b · Sub-Neptune

Host System: TOI-2048

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,185 K — cooler than the Sun (5,778 K)

Estimated Age

0.30 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.790 R☉

Stellar Mass

0.830 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.600 dex

Stellar density

2.380 g/cm³

Systemic radial velocity

-7.60 km/s

Rotational v·sin i

4.80 km/s

Rotation period

7.97 days

Metallicity ratio

[M/H]

Distance

116.57 parsec

Light-years 380.19 ly

V-band magnitude

11.43 mag

Voyager-speed travel 6,704,655 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

8.550 mas

Total Proper Motion

10.484 mas/yr

PM Right Ascension

-10.39 mas/yr

PM Declination

-1.38 mas/yr

Galactic Cartesian (pc)

x = -0.325 · y = -0.518 · z = 0.791

Equatorial (J2000)

RA 237.92411° · Dec 52.30631°

Galactic ℓ, b

82.461° · 48.174°

Ecliptic λ, β

206.312° · 68.762°

HTM-20 index

1256817648