Sirius things to think about
SkyCaramba
English - January 23, 2022 06:00 - 5 minutes - 4.66 MBAstronomy Science Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
Previous Episode: Gemini and Jimmy Carter's Unidentified Flying Planet
Next Episode: Lepus the hare
The planet watching continues to migrate to the morning.
Astronomers realized in 1844 that Sirius has a companion star. But it took 18 years before anyone built a telescope that could reveal it.
Sky watchers of long ago described Sirius as red. Why would they say that when the star is bluish-white?