NASA (Exoplanet Catalog artwork)WASP-76b
Wo es geschmolzenes Eisen regnet
Überblick
WASP-76b is an exoplanet classified as a Hot Jupiter. It is located in the constellation Pisces and orbits its host star, WASP-76, at a distance of approximately 0.033 AU. Its orbital period is approximately 1.8 days, and its mass is about 0.92 times that of Jupiter. The discovery of WASP-76b took place on October 21, 2013; as of 2022, it is the only known planet in the WASP-76 system. The equilibrium temperature of WASP-76b is estimated to be around 2,190 K, However, the measured daytime temperature is higher, reaching approximately 2,500 ± 200 K.
Quelle: Wikipedia · Diese Beschreibung ist nur auf Englisch verfügbar.
NASA: WASP-76 b is a gas giant exoplanet that orbits a F-type star. Its mass is 0.894 Jupiters, it takes 1.8 days to complete one orbit of its star, and is 0.033 AU from its star. Its discovery was announced in 2016.
Warum sie zählt
- Tagseitentemperaturen über 2 400 °C verdampfen Eisen; Winde tragen es zur kühleren Nachtseite, wo es als Regen kondensiert.
- ESPRESSO am VLT entdeckte 2020 die Eisensignatur nur am Abendterminator.
- Spätere Studien fanden Barium und andere schwere Elemente hoch in seiner Atmosphäre.
Die NASA formuliert es so: „WASP-76 b is a gas giant exoplanet that orbits an F-type star. Its mass is 0.92 Jupiters, it takes 1.8 days to complete one orbit of its star, and is 0.033 AU from its star. Its discovery was announced in 2016.“
Entdeckung & System
- Entdeckt
- 2016 · Transit · SuperWASP
- Entdeckungsarbeit
- West et al. 2016
- Zentralstern
- WASP-76 · F7 · 6.329 K · 1,46 M☉
- System
- 1 bekannter Planet, 2 Sterne
Das System
| Welt | Periode | Abstand | Radius | Masse | Temp. |
|---|---|---|---|---|---|
| WASP-76 b | 1,81 d | 0,033 AE | 1,85 R♃ | 0,89 M♃ | 2.228 K |
In Zahlen
- Radius
- 1,85 R♃20,8 R⊕
- Masse
- 0,89 M♃284 M⊕
- Umlaufzeit
- 1,81 d0 Jahre
- Abstand zum Stern
- 0,033 AE4,94 Mio. km
- Exzentrizität
- 0nahezu kreisförmig
- Gleichgewichtstemp.
- 2.228 K1.955 °C
- Empfangenes Sternlicht
- 4.104 × Erde
- Entfernung zur Erde
- 634 Lj194,5 pc
- Dichte
- 0,17 g/cm³0,03 × Erde
Quellen
Bild: NASA (Exoplanet Catalog artwork) · NASA media: generally free of copyright · Bildseite
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