HD 284149 AB b
HD 284149 AB b is a exoplanet orbiting HD 284149 A in the constellation Taurus. It lies about 384 light-years from Earth and was discovered in 2017 using the imaging method.
Is HD 284149 AB b in the Habitable Zone?
HD 284149 AB b orbits beyond the outer edge of the habitable zone of HD 284149 A. At that distance, any surface water would almost certainly be frozen.
Habitable zone of HD 284149 A: 1.096–2.566 AU (conservative: 1.388–2.433 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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Temperature on HD 284149 AB b
The equilibrium temperature of HD 284149 AB b is about 2,395 K (2,122 °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
HD 284149 AB b orbits at an average distance of 431.160 AU.
How Was HD 284149 AB b Discovered?
HD 284149 AB b was discovered in 2017 using the imaging method, with observations from Paranal Observatory.
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.
How Far Away Is HD 284149 AB b?
HD 284149 AB b is 384.2 light-years (117.8 parsecs) from Earth. Light arriving here tonight left the planet around the year 1642. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 6,761,920 years to make the journey.
The Host Star: HD 284149 A
HD 284149 AB b is a circumbinary planet — it orbits around two stars at once, like Tatooine in Star Wars.
HD 284149 A
- Surface temperature
- 6,035 K (Sun: 5,772 K)
- Radius
- 1.36 R☉
- Luminosity
- 2.2000 L☉
- Age
- 0.0 billion years (Sun: 4.6)
Planetary System
HD 284149 AB b is the only planet known to orbit HD 284149 A so far.
HD 284149 AB b — Complete Data
| Mass | 8,352.53 Earth masses (26.280 Jupiter masses) |
|---|---|
| Orbital distance | 431.160 AU |
| Equilibrium temperature | 2,395 K (2,122 °C) |
| Distance from Earth | 384.2 light-years (117.8 parsecs) |
| Constellation | Taurus |
| Discovery method | Imaging |
| Discovery facility | Paranal Observatory |
| Discovery year | 2017 |
Data: NASA Exoplanet Archive, last updated 2024-06-11. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About HD 284149 AB b
Is HD 284149 AB b habitable?
No — HD 284149 AB b orbits outside the habitable zone of HD 284149 A and is likely too cold for liquid water on its surface.
How far away is HD 284149 AB b?
HD 284149 AB b is about 384 light-years from Earth in the constellation Taurus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 6,761,920 years to get there.
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