V1094 Scorpii

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]
Distance501 ± 3 ly
(154 ± 1 pc)
Details[4]
Mass0.92 M☉
Radius1.9 R☉
Luminosity1.7 L☉
Temperature4,205 K
Age2-3 Myr
Other designations
V1094 Sco, GSC 07855-01162, 2MASS J16083617-3923024
Database references
SIMBADdata

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]

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by the presence of a substellar object in a tight orbit.[6] Currently, the presence of a substellar object has been retracted, invoking starspots as the actual cause for observed radial velocity variations.[2]

  1. ^ Cite error: The named reference Wichmann2 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Joergens et al. was invoked but never defined (see the help page).
  3. ^ a b c d e Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference vanTerwisga2018 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Hughes et al. was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Wichmann et al. was invoked but never defined (see the help page).