Exoplanetยท HD 209458

HD 209458 b

๐Ÿ“ 159 light-years๐Ÿ”ญ Discovered 1999

โ€œThe first exoplanet with a detected atmosphere โ€” nicknamed 'Osiris' for its evaporating hydrogen tail streaming into space.โ€

#hot-jupiter#osiris#atmosphere#transiting

The AI Briefing

Consulting the cosmosโ€ฆ