R Pictoris
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pictor |
| Right ascension | 04h 46m 09.54675s |
| Declination | −49° 14′ 45.0647 ″ |
| Apparent magnitude (V) | 6.35 |
| Characteristics | |
| Spectral type | M1IIe-M4IIe |
| Variable type | Semiregular |
| Other designations | |
| CD−49° 1439, HD 30551, HIP 22170, SAO 216987 | |
| Database references | |
| SIMBAD | data |
R Pictoris is a semiregular variable type star in the constellation Pictor. It ranges between apparent magnitude 5.1 and 14.4, and spectral types M1IIe to M4IIe, over a period of 168 days. It should be faintly visible to the naked eye of an observer with excellent observing conditions, when it is near its maximum brightness.
In 1895, Williamina Fleming discovered that the star is a variable star. In 1907 it appeared with its variable star designation, R Pictoris, in Annie Jump Cannon's Second Catalog of Variable Stars.