Key parameters at a glance

A radius of 20.85 Earth radii
A mass of 2,479.06 Earth masses
Surface gravity around 5.70 g
An orbital period of 8,040,000.000 days
Semi-major axis 200.0000 AU
Equilibrium temperature 1,800 K (1527 °C)
Earth Similarity Index 0.069

CFHTWIR-Oph 98 b Planet Profile

Physical Specs

Radius

20.85 R⊕

Radius (Jupiter)

1.860 R♃

Mass

2,479.06 M⊕

Mass (Jupiter)

7.800 M♃

Density

1.50 g/cm³

Surface Gravity

5.70 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.069

HZ Position Unknown

Controversial No

Discovery

Year 2021

Method Imaging

Facility Hubble Space Telescope

Telescope 2.4 m Hubble Space Telescope

Size rank in cohort

Rank by radius

#26of 1771

top 1.4%

This planet

20.85R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HATS-23 b 20.85 R⊕ WASP-76 b 20.78 R⊕ HAT-P-33 b 20.74 R⊕

Metric	Earth	CFHTWIR-Oph 98 b	Jupiter
Radius (R⊕)	1.00	20.85	11.21
Mass (M⊕)	1.00	2,479.06	317.83
Density (g/cm³)	5.51	1.50	1.33
Surface Gravity (g)	1.00	5.70	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	2,479.062 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 175744063

System

CFHTWIR-Oph 98

Percentile among Gas Giant cohort

Radius 20.849 R⊕ · percentile 99 / cohort 1771

Mass 2,479.062 M⊕ · percentile 83 / cohort 1747

Orbital period 8,040,000.00 d · percentile 100 / cohort 1533

ESI 0.069 · percentile 13 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

8,040,000.000 days

Semi-major axis

200.0000 AU

Eccentricity

—

Inclination

— °

Year Length

A year here lasts about 22012.32 Earth years at a mean orbital distance of 200.0000 AU.

Eq. Temperature

1,800K

(1527 °C)

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.069

0 = alien, 1 = Earth-identical

Insufficient insolation data — the dayside is scorched.

Discovery Paper

Primary reference

Fontanive et al. 2020

Instrument

WFC3 Camera

Publication

2020-12

Observation locale

Space

Host System: CFHTWIR-Oph 98 A

Spectral Class

M-type red dwarf

Effective Temperature

2,320 K — cooler than the Sun (5,778 K)

Estimated Age

0.00 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.245 R☉

Stellar Mass

0.015 M☉

Metallicity [Fe/H]

—

Multi-band Host Photometry — 8 bands

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NGTS-1 b

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GJ 3512 b

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GJ 3512 c

Gas Giant · M-type red dwarf

Radius 14.30 R⊕ · 30.9 ly

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