Astronomy:ADS 48
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Short description: Multiple star system with 7 stars in the constellation of Andromeda
Observation data {{#ifeq:J2000|J2000.0 (ICRS)|Epoch J2000.0 Equinox J2000.0 (ICRS)| [[History:Epoch|Epoch J2000]] [[Astronomy:Equinox (celestial coordinates)|Equinox J2000}} | |
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Constellation | Andromeda |
ADS 48 A | |
Right ascension | 00h 05m 41.0219s[1] |
Declination | +45° 48′ 43.5452″[1] |
Apparent magnitude (V) | 8.826[2] |
ADS 48 B | |
Right ascension | 00h 05m 41.0028s[3] |
Declination | +45° 48′ 37.3535″[3] |
Apparent magnitude (V) | 8.995[2] |
ADS 48 F | |
Right ascension | 00h 05m 10.8892s[4] |
Declination | +45° 47′ 11.6395″[4] |
Apparent magnitude (V) | 9.949[5] |
Characteristics | |
ADS 48 A | |
Spectral type | K6V[6] |
B−V color index | +1.344[2] |
ADS 48 B | |
Spectral type | M0.5V[6] |
B−V color index | +1.345[2] |
ADS 48 F | |
Spectral type | M1V[5] |
U−B color index | +1.18[7] |
B−V color index | +1.50[7] |
Astrometry | |
ADS 48 AB | |
Radial velocity (Rv) | 1.49±0.1[8] km/s |
Proper motion (μ) | RA: 887.48±1.02[9] mas/yr Dec.: −152.02±1.04[9] mas/yr |
Parallax (π) | 88.44 ± 1.56[9] mas |
Distance | 36.9 ± 0.7 ly (11.3 ± 0.2 pc) |
ADS 48 F | |
Radial velocity (Rv) | −0.39±0.09[8] km/s |
Proper motion (μ) | RA: 870.753±0.057[4] mas/yr Dec.: −151.267±0.036[4] mas/yr |
Parallax (π) | 86.9567 ± 0.0407[4] mas |
Distance | 37.51 ± 0.02 ly (11.500 ± 0.005 pc) |
Orbit[10] | |
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[10] M☉ |
ADS 48 B | |
Mass | 0.53[10] M☉ |
ADS 48 F | |
Radius | 0.618±0.027[5] R☉ |
Temperature | 3484±50[5] K |
Rotation | 15.37(9)[11] days |
Rotational velocity (v sin i) | 2.76[5] km/s |
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 8.826, 8.995,[2] 13.30,[12] 12.53, 11.68,[2] 9.949,[5] and 13.00.[13]
ADS 48A and ADS 48B are in orbital motion around each other while ADS 48F is a common proper motion companion not gravitationally bound to the pair. The others are unassociated background stars, and component C could be a double star itself.[14] It has also been proposed the existence of an unseen companion of 0.05 M☉.[10]
References
- ↑ 1.0 1.1 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P. et al. (2000), "The Tycho-2 catalogue of the 2.5 million brightest stars", Astronomy & Astrophysics 355: L27–L30, Bibcode: 2000A&A...355L..27H.
- ↑ 3.0 3.1 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 4.0 4.1 4.2 4.3 4.4 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 5.0 5.1 5.2 5.3 5.4 5.5 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. doi:10.1111/j.1365-2966.2010.16827.x. Bibcode: 2010MNRAS.407.1657H.
- ↑ 6.0 6.1 Tamazian, Vakhtang S.; Docobo, José A.; Melikian, Norair D.; Karapetian, Arthur A. (2006). "MK Classification and Dynamical Masses for Late-Type Visual Binaries". Publications of the Astronomical Society of the Pacific 118 (844): 814. doi:10.1086/504881. Bibcode: 2006PASP..118..814T.
- ↑ 7.0 7.1 Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. Bibcode: 1986EgUBV........0M. http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?1986EgUBV........0M&db_key=AST&nosetcookie=1.
- ↑ 8.0 8.1 Nidever, David L.; Marcy, Geoffrey W.; Butler, R. Paul; Fischer, Debra A.; Vogt, Steven S. (2002). "Radial Velocities for 889 Late-Type Stars". The Astrophysical Journal Supplement Series 141 (2): 503–522. doi:10.1086/340570. Bibcode: 2002ApJS..141..503N.
- ↑ 9.0 9.1 9.2 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V. http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2007A%2526A...474..653VFUL. Vizier catalog entry
- ↑ 10.0 10.1 10.2 10.3 Kiyaeva, O. V. (2001). "An astrometric study of the triple star ADS 48". Astronomy Letters 21 (6): 391–397. doi:10.1134/1.1374678. Bibcode: 2001AstL...27..391K.
- ↑ Díez Alonso, E. et al. (January 2019). "CARMENES input catalogue of M dwarfs". Astronomy and Astrophysics 621. doi:10.1051/0004-6361/201833316. Bibcode: 2019A&A...621A.126D. Vizier catalog entry
- ↑ "GSC 03246-01561". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=GSC+03246-01561.
- ↑ "GSC 03246-00320". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=GSC+03246-00320.
- ↑ Cvetković, Z. et al. (2012). "System ADS 48: Visual Binary or Multiple System". The Astronomical Journal 144 (3). doi:10.1088/0004-6256/144/3/80. Bibcode: 2012AJ....144...80C.
![]() | Original source: https://en.wikipedia.org/wiki/ADS 48.
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