CFHTWIR-Oph 98 b
CFHTWIR-Oph 98 b is a hot Jupiter orbiting the M9-L1 star CFHTWIR-Oph 98 A in the constellation Ophiuchus. It was discovered in 2020 using the imaging method.
How Big Is CFHTWIR-Oph 98 b?
CFHTWIR-Oph 98 b has a radius of 20.85 times that of Earth, or 1.86 times the radius of Jupiter. Its mass is 2,479 times that of Earth.
Is CFHTWIR-Oph 98 b in the Habitable Zone?
The position of CFHTWIR-Oph 98 b relative to the habitable zone of CFHTWIR-Oph 98 A cannot be precisely determined from the available orbital data.
Temperature on CFHTWIR-Oph 98 b
The equilibrium temperature of CFHTWIR-Oph 98 b is about 1,800 K (1,527 °C) — hot enough to melt many metals. This estimate ignores any atmosphere, which could change surface temperatures dramatically — Earth's greenhouse effect adds about 33 °C.
Orbit and Year Length
A year on CFHTWIR-Oph 98 b — one full orbit around CFHTWIR-Oph 98 A — lasts 8,040,000.0 Earth days, longer than Jupiter's 12-year orbit. It orbits at an average distance of 200.000 AU.
How Was CFHTWIR-Oph 98 b Discovered?
CFHTWIR-Oph 98 b was discovered in 2020 using the imaging method, with observations from Hubble Space Telescope.
Direct imaging captures actual pictures of a planet by blocking out the overwhelming glare of its host star. It works best for young, hot, massive planets on wide orbits.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. CFHTWIR-Oph 98 b scores 0.04, ranking #5,309 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: CFHTWIR-Oph 98 A
CFHTWIR-Oph 98 A
- Spectral type
- M9-L1
- Surface temperature
- 2,320 K (Sun: 5,772 K)
- Mass
- 0.01 M☉
- Radius
- 0.25 R☉
- Luminosity
- 0.0014 L☉
- Age
- 0.0 billion years (Sun: 4.6)
Planetary System
CFHTWIR-Oph 98 b is the only planet known to orbit CFHTWIR-Oph 98 A so far.
CFHTWIR-Oph 98 b — Complete Data
| Radius | 20.849 Earth radii (1.860 Jupiter radii) |
|---|---|
| Mass | 2,479.06 Earth masses (7.800 Jupiter masses) |
| Orbital period | 8,040,000.00 days |
| Orbital distance | 200.000 AU |
| Equilibrium temperature | 1,800 K (1,527 °C) |
| Earth Similarity Index | 0.04 |
| Constellation | Ophiuchus |
| Discovery method | Imaging |
| Discovery facility | Hubble Space Telescope |
| Discovery year | 2020 |
Data: NASA Exoplanet Archive, last updated 2021-05-17. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About CFHTWIR-Oph 98 b
Is CFHTWIR-Oph 98 b habitable?
CFHTWIR-Oph 98 b is not known to orbit within the habitable zone of CFHTWIR-Oph 98 A, and as a hot Jupiter it is an unlikely candidate for life as we know it.
How big is CFHTWIR-Oph 98 b compared to Earth?
CFHTWIR-Oph 98 b has 20.85 times the radius of Earth and about 2,479 times its mass.
How long is a year on CFHTWIR-Oph 98 b?
One orbit around CFHTWIR-Oph 98 A takes 8,040,000.0 Earth days.
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