Mark A. Norris
@markanorris.bsky.social
Astronomer, Educator, Traveller, Human, Mild cynic.
Hours to about a day typically. You can see some complete a period in a single night.
They are the blue stars that appear to twinkle and change colour slightly. (lweb.cfa.harvard.edu/sdu/variabil...).
The blue stragglers will be mostly constant luminosity, and fainter than the RR Lyraes.
They are the blue stars that appear to twinkle and change colour slightly. (lweb.cfa.harvard.edu/sdu/variabil...).
The blue stragglers will be mostly constant luminosity, and fainter than the RR Lyraes.
November 28, 2025 at 4:57 PM
Hours to about a day typically. You can see some complete a period in a single night.
They are the blue stars that appear to twinkle and change colour slightly. (lweb.cfa.harvard.edu/sdu/variabil...).
The blue stragglers will be mostly constant luminosity, and fainter than the RR Lyraes.
They are the blue stars that appear to twinkle and change colour slightly. (lweb.cfa.harvard.edu/sdu/variabil...).
The blue stragglers will be mostly constant luminosity, and fainter than the RR Lyraes.
This is the process.
November 9, 2025 at 7:39 AM
This is the process.