ADS 48
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Andromeda |
ADS 48 A | |
Right ascension | 00h 05m 41.0129s[1] |
Declination | +45° 48′ 43.491″[1] |
Apparent magnitude (V) | 8.826[1] |
ADS 48 B | |
Right ascension | 00h 05m 40.342s[2] |
Declination | +45° 48′ 38.73″[2] |
Apparent magnitude (V) | 8.995[2] |
Characteristics | |
ADS 48 A | |
Spectral type | K6V[1] |
U−B color index | +1.29[1] |
B−V color index | +1.44[1] |
ADS 48 B | |
Spectral type | M0.5V[2] |
U−B color index | +1.20[2] |
B−V color index | +1.45[2] |
ADS 48 F | |
Spectral type | M2Ve[3] |
U−B color index | +1.18[4] |
B−V color index | +1.50[4] |
Astrometry | |
ADS 48 AB | |
Radial velocity (Rv) | 1.49 km/s |
Proper motion (μ) | RA: 887.48[5] mas/yr Dec.: -152.02[5] mas/yr |
Parallax (π) | 88.44 ± 1.56[5] mas |
Distance | 36.9 ± 0.7 ly (11.3 ± 0.2 pc) |
ADS 48 F | |
Radial velocity (Rv) | -0.39 km/s |
Proper motion (μ) | RA: 870.19[5] mas/yr Dec.: -150.45[5] mas/yr |
Parallax (π) | 88.88 ± 1.42[5] mas |
Distance | 36.7 ± 0.6 ly (11.3 ± 0.2 pc) |
Orbit[6] | |
Primary | A |
Companion | B |
Period (P) | 509.65 ± 96.99 yr |
Semi-major axis (a) | 6.21 ± 0.77″ |
Eccentricity (e) | 0.22 ± 0.04 |
Inclination (i) | 54.9 ± 2.4° |
Longitude of the node (Ω) | 13.5 ± 2.3° |
Periastron epoch (T) | 2115.80 ± 123.47 |
Argument of periastron (ω) (secondary) | 267.2 ± 27.4° |
Details | |
ADS 48 A | |
Mass | 0.50[6] M☉ |
ADS 48 B | |
Mass | 0.53[6] M☉ |
ADS 48 F | |
Radius | 0.618[7] R☉ |
Temperature | 3484[7] K |
Other designations | |
ADS 48 A: HD 38A, SAO 36046, GC 71, GJ 4 A, CCDM J00057+4548A, WDS J00057+4549A | |
ADS 48 B: HD 38B, SAO 36048, GC 72, GJ 4 B, CCDM J00057+4548B, WDS J00057+4549B | |
ADS 48 F: HIP 428, GJ 2, CCDM J00057+4548F, WDS J00057+4549F | |
Database references | |
SIMBAD | AB |
A | |
B | |
F |
ADS 48 is a multiple star system in the constellation of Andromeda consisting of 7 stars. The components, in order from A to G, have apparent visual magnitudes of 8.83,[1] 9.00,[2] 13.30,[8] 12.53,[9] 11.68,[10] 9.97,[3] and 13.00.[11]
ADS 48A and ADS 48B are in orbital motion around each other while ADS 48F is a common proper motion companion. The others are unassociated background stars.[12]
References
- 1 2 3 4 5 6 7 "HD 38A". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 July 2013.
- 1 2 3 4 5 6 7 "HD 38B". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 July 2013.
- 1 2 "BD+44 4548". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 July 2013.
- 1 2 Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV data. Bibcode:1986EgUBV........0M.
- 1 2 3 4 5 6 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
- 1 2 3 Kiyaeva, O. V. (2001). "An astrometric study of the triple star ADS 48". Astronomy Letters. 21 (6): 391–397. Bibcode:2001AstL...27..391K. doi:10.1134/1.1374678.
- 1 2 Houdebine, E. R. (2010). "Observation and modelling of main-sequence star chromospheres - XIV. Rotation of dM1 stars". Monthly Notices of the Royal Astronomical Society. 407 (3): 1657–1673. Bibcode:2010MNRAS.407.1657H. doi:10.1111/j.1365-2966.2010.16827.x.
- ↑ "GSC 03246-01561". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 July 2013.
- ↑ "GSC+03246-01146". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 July 2013.
- ↑ "GSC 03246-01100". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 July 2013.
- ↑ "GSC 03246-00320". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 July 2013.
- ↑ Cvetković, Z.; et al. (2012). "System ADS 48: Visual Binary or Multiple System". The Astronomical Journal. 144 (3): 80. Bibcode:2012AJ....144...80C. doi:10.1088/0004-6256/144/3/80.
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