ADS 48
Multiple star system with 7 stars in the constellation of Andromeda
ADS 48
Observation dataEpoch J2000 Equinox J2000
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/sProper motion (μ) RA: 887.48± 1.02[ 9] mas /yr Dec.: −152.02± 1.04[ 9] mas /yr Parallax (π)88.44 ± 1.56 mas [ 9] Distance 36.9 ± 0.7 ly (11.3 ± 0.2 pc ) ADS 48 F Radial velocity (Rv ) −0.39± 0.09[ 8] km/sProper motion (μ) RA: 870.753± 0.057[ 4] mas /yr Dec.: −151.267± 0.036[ 4] mas /yr Parallax (π)86.9567 ± 0.0407 mas [ 4] 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+4549AADS 48 B : HD 38B, SAO 36048, GC 72, GJ 4 B, CCDM J00057+4548B, WDS J00057+4549BADS 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
^ a b Brown, A. G. A. ; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties" . Astronomy & Astrophysics . 616 . A1. arXiv :1804.09365 . Bibcode :2018A&A...616A...1G . doi :10.1051/0004-6361/201833051 . Gaia DR2 record for this source at VizieR .
^ a b c d e f Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000), "The Tycho-2 catalogue of the 2.5 million brightest stars", Astronomy & Astrophysics , 355 : L27–L30, Bibcode :2000A&A...355L..27H .
^ a b Brown, A. G. A. ; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties" . Astronomy & Astrophysics . 616 . A1. arXiv :1804.09365 . Bibcode :2018A&A...616A...1G . doi :10.1051/0004-6361/201833051 . Gaia DR2 record for this source at VizieR .
^ a b c d e Brown, A. G. A. ; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties" . Astronomy & Astrophysics . 616 . A1. arXiv :1804.09365 . Bibcode :2018A&A...616A...1G . doi :10.1051/0004-6361/201833051 . Gaia DR2 record for this source at VizieR .
^ a b c d e f 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 .
^ a b 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. Bibcode :2006PASP..118..814T . doi :10.1086/504881 .
^ a b Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)" . Catalogue of Eggen's UBV Data . Bibcode :1986EgUBV........0M .
^ a b 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. arXiv :astro-ph/0112477 . Bibcode :2002ApJS..141..503N . doi :10.1086/340570 . S2CID 51814894 .
^ a b c 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 . S2CID 18759600 . Vizier catalog entry
^ a b c d 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 . S2CID 121012446 .
^ Díez Alonso, E.; et al. (January 2019). "CARMENES input catalogue of M dwarfs" . Astronomy and Astrophysics . 621 A126. arXiv :1810.03338 . Bibcode :2019A&A...621A.126D . doi :10.1051/0004-6361/201833316 . Vizier catalog entry
^ "GSC 03246-01561" . 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 . S2CID 120045704 .