R Hydrae
From Wikipedia, the free encyclopedia
R Hydrae is a Mira-type variable star in the constellation Hydra.
The magnitude of R Hydrae varies over a period of 389 days, between 3.21 and 11.00. The period of R Hydrae changes slowly.
At maximum brightness the star can be seen with the naked eye, while at minimum a telescope of at least 5 cm is needed.
R Hydrae is approximately 2000 light years from Earth and is of spectral class M7.
[edit] Coordinates for epoch J2000
- Right ascension: 13h29m42.80s
- Declination: −23°16'53.0"
