HD 168443 b
From Infogalactic: the planetary knowledge core
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 168443 | |
| Constellation | Serpens | |
| Right ascension | (α) | 18h 20m 03.9316s |
| Declination | (δ) | −09° 35′ 44.601″ |
| Apparent magnitude | (mV) | 6.92 |
| Distance | 123.5 ly (37.88 pc) |
|
| Spectral type | G5IV | |
| Orbital elements | ||
| Semi-major axis | (a) | 0.29 AU |
| Periastron | (q) | 0.14 AU |
| Apastron | (Q) | 0.44 AU |
| Eccentricity | (e) | 0.529 ± 0.02 |
| Orbital period | (P) | 58.116 ± 0.001 d (0.15911 y) |
| Argument of periastron |
(ω) | 172.9° |
| Time of periastron | (T0) | 2,451,616.36 ± 0.02 JD |
| Semi-amplitude | (K) | 475.9 ± 1.6 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 7.696 ± 0.015[1] MJ (2300 M⊕) |
| Discovery information | ||
| Discovery date | September 9, 1998 | |
| Discoverer(s) | Butler, Marcy et al. | |
| Discovery method | Doppler spectroscopy | |
| Discovery site | Hawaii, USA | |
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 168443 b is a planet seven times as massive as Jupiter. Given the high mass, this planet is likely to be a gas giant, or possibly a small brown dwarf depending on the orbital inclination. It orbits closer to its star than Mercury does to the Sun, and its surface temperature is likely to be very high.
References
- Notes
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- Sources
- Lua error in package.lua at line 80: module 'strict' not found.
External links
- Lua error in package.lua at line 80: module 'strict' not found.
Coordinates: 
18h 20m 03.9316s, −09° 35′ 44.601″
<templatestyles src="Asbox/styles.css"></templatestyles>
 |
This extrasolar-planet-related article is a stub. You can help Wikipedia by expanding it. |
