V378 Normae

V378 Normae (also known as HR 6120) is a supergiant star in the constellation Norma. It is a likely Cepheid variable with a range of 6.21 to 6.23 and a period of 3.5850 days.^[3] It is very faintly visible to the naked eye under excellent observing conditions.

V378 Normae

A light curve for V378 Normae, plotted from Hipparcos data[1]
Observation data Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation	Norma
Right ascension	16h 29m 45.2207s[2]
Declination	−57° 45′ 22.767″[2]
Apparent magnitude (V)	6.21 - 6.23[3]
Characteristics
Spectral type	G8Ib[4]
Variable type	Cepheid[3]
Astrometry
Radial velocity (Rv)	5.93±0.15[2] km/s
Proper motion (μ)	RA: −1.666[2] mas/yr Dec.: −2.559[2] mas/yr
Parallax (π)	1.0264±0.0349 mas[2]
Distance	3,200 ± 100 ly (970 ± 30 pc)
Absolute magnitude (MV)	−0.078[5]
Details
Mass	3.43[6] M☉
Radius	115[7] R☉
Luminosity	4,214[7] L☉
Surface gravity (log g)	0.72[6] cgs
Temperature	4,335[7] K
Metallicity [Fe/H]	−0.25[6] dex
Other designations
V378 Normae, CD−57°6417, HD 148218, HIP 80788, HR 6120
Database references
SIMBAD	data