R Pictoris

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.^[3] It should be faintly visible to the naked eye of an observer with excellent observing conditions, when it is near its maximum brightness.

R Pictoris

A visual band light curve for R Pictoris, plotted from TESS data[1]
Observation data Epoch J2000      Equinox J2000
Constellation	Pictor
Right ascension	04h 46m 09.54675s[2]
Declination	−49° 14′ 45.0647 ″[2]
Apparent magnitude (V)	6.35[2]
Characteristics
Spectral type	M1IIe-M4IIe[3]
Variable type	Semiregular
Other designations
CD−49° 1439, HD 30551, HIP 22170, SAO 216987
Database references
SIMBAD	data

In 1895, Williamina Fleming discovered that the star is a variable star.^[4] In 1907 it appeared with its variable star designation, R Pictoris, in Annie Jump Cannon's Second Catalog of Variable Stars.^[5]