 Visual bandlight curves for V1094 Scorpii, adapted from Wichmannet al. (1998)[1] and Joergenset al. (2001)[2] | |
| Observation data EpochJ2000.0 EquinoxJ2000.0 | |
|---|---|
| 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 |
V1094 Scorpii is ayoung stellar object in theconstellation ofScorpius, located in the youngLupus Star Forming Region.[5] It is being orbited by a protoplanetary disk that extends out to a distance of300 AU from the host star. There are gaps at100 AU and170 AU, with bright rings at130 AU and220 AU.[4]
In 1998, Rainer Wichmannet al. announced that the star, then known as RXJ1608.6-3922, is avariable star, based onvisual bandphotometry over a nine day interval. They classified it as aneclipsing binary.[6] Later observations showed that the brightness variations are due tostarspots.[2] It was given itsvariable 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explained by the presence of asubstellar object in a tightorbit.[8] Currently, the presence of asubstellar object has been retracted; again starspots have been invoked as the actual cause for observedradial velocity variations.[2]
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