Light curves for RW Aurigae derived from photographic plate data, adapted from Beck and Simon (2007)[1] | |
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Auriga |
RW Aurigae A | |
Right ascension | 05h 07m 49.4561s[2] |
Declination | +30° 24′ 04.7772″[2] |
Apparent magnitude (V) | 9.6 |
RW Aurigae B | |
Right ascension | 05h 07m 49.5652s[3] |
Declination | 30° 24′ 05.1361″[3] |
Characteristics | |
RW Aurigae A | |
Spectral type | K1-K3[4] |
Apparent magnitude (G) | 12.2048±0.0093[5] |
Variable type | T Tau |
RW Aurigae B | |
Spectral type | K5[4] |
Apparent magnitude (G) | 13.3177±0.0653[6] |
Astrometry | |
A | |
Proper motion (μ) | RA: 2.747[2] mas/yr Dec.: -27.558[2] mas/yr |
Parallax (π) | 6.1157 ± 0.0665 mas[5] |
Distance | 533 ± 6 ly (164 ± 2 pc) |
B | |
Proper motion (μ) | RA: 4.238[3] mas/yr Dec.: -24.996[3] mas/yr |
Parallax (π) | 6.5835 ± 0.9023 mas[6] |
Distance | approx. 500 ly (approx. 150 pc) |
Position (relative to RW Aurigae A)[7] | |
Component | RW Aurigae B |
Epoch of observation | 4/6/2007 |
Angular distance | 1.448±0.005″ |
Position angle | 255.9±0.3° |
Projected separation | 237 AU |
Details | |
A | |
Mass | 1.34±0.18[4] M☉ |
Luminosity | 0.59[4] L☉ |
Temperature | 5082[4] K |
Rotation | 5.6 d.[8] |
Age | 3±1[9] Myr |
B | |
Mass | 0.9[10] M☉ |
Radius | 1.5[9] R☉ |
Luminosity | 0.6[9] L☉ |
Temperature | 4150±50[9] K |
Age | 3±1[9] Myr |
Other designations | |
RW Aurigae A: Gaia DR2 156430822114424576 | |
RW Aurigae B: Gaia DR2 156430817820015232 | |
Database references | |
SIMBAD | data |
RW Aurigae is a young binary system in the constellation of Auriga about 530 light years away, belonging to the Taurus-Auriga association of the Taurus Molecular Cloud. RW Aurigae B was discovered in 1944.[7]
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