101 Virginis [SEP] constellation
101 Virginis
101 Virginis is a red giant variable star in the Boötes constellation, currently on the asymptotic giant branch. It was originally catalogued as 101 Virginis by Flamsteed due to an error in the position. When it was confirmed as a variable star, it was actually within the border of the constellation Bootes and given the name CY Boötis.
The variability is not strongly defined but a primary period of 23 days and a secondary period of 340 days have been reported.
CY Boo is listed in the Hipparcos catalogue
Virginis
Virginis may refer to :
Astronomy.
- Stars in the constellation Virgo.
- Alpha Virginis is the brightest star in the constellation Virgo.
- 61 Virginis is a star located about 27.8 light-years away in the constellation of Virgo.
- Etc.
- 101 Virginis or CY Boötis is a variable star in the Bootes constellation.
Religion.
- Deiparae Virginis Mariae is an encyclical of Pope Pius XII to all Catholic bishops on the possibility of defining the Assumption of the Blessed