Random Astronomy Pictures OTD on Nostr: APOD from 2022-02-24 Beautiful Albireo AB Albireo, or Beta Cygni, appears as a single ...
APOD from 2022-02-24
Beautiful Albireo AB
Albireo, or Beta Cygni, appears as a single star but is a striking blue and gold double star through a telescope. Located 420 light-years away in Cygnus, its components—K-type giant Albireo A and hotter main sequence Albireo B—show contrasting spectra. Though close, they likely form an optical double, not a binary system.
HD image at https://apod.nasa.gov/apod/ap220224.html
Beautiful Albireo AB
Albireo, or Beta Cygni, appears as a single star but is a striking blue and gold double star through a telescope. Located 420 light-years away in Cygnus, its components—K-type giant Albireo A and hotter main sequence Albireo B—show contrasting spectra. Though close, they likely form an optical double, not a binary system.
HD image at https://apod.nasa.gov/apod/ap220224.html