V1094 Scorpii

V1094 Scorpii is a young stellar object in the constellation of Scorpius, located in the young Lupus Star Forming Region.^[5] It is being orbited by a protoplanetary disk that extends out to a distance of 300 AU from the host star. There are gaps at 100 AU and 170 AU, with bright rings at 130 AU and 220 AU.^[4]

V1094 Scorpii

Visual band light curves for V1094 Scorpii, adapted from Wichmann et al. (1998)[1] and Joergens et al. (2001)[2]
Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Scorpius-Lupus
Right ascension	16h 08m 36.17701s[3]
Declination	−39° 23′ 02.4621″[3]
Apparent magnitude (V)	13.48
Characteristics
Spectral type	K6V[4]
Variable type	T Tauri-type?
Astrometry
Proper motion (μ)	RA: −9.830[3] mas/yr Dec.: +23.435[3] mas/yr
Parallax (π)	6.5086±0.0452 mas[3]
Distance	501 ± 3 ly (154 ± 1 pc)
Details[4]
Mass	0.92 M☉
Radius	1.9 R☉
Luminosity	1.7 L☉
Temperature	4,205 K
Age	2-3 Myr
Other designations
V1094 Sco, GSC 07855-01162, 2MASS J16083617-3923024
Database references
SIMBAD	data

In 1998, Rainer Wichmann et al. announced that the star, then known as RXJ1608.6-3922, is a variable star, based on visual band photometry over a nine day interval. They classified it as an eclipsing binary.^[6] Later observations showed that the brightness variations are due to starspots.^[2] It was given its variable star designation in the year 2000.^[7]

Periodic radial velocity variations in the young star V1094 Scorpii had at first been explained by the presence of a substellar object in a tight orbit.^[8] Currently, the presence of a substellar object has been retracted; again starspots have been invoked as the actual cause for observed radial velocity variations.^[2]