Access to Astronomical Catalogues

← Click to display the menu
J/A+AS/124/75       Multiple star catalogue (MSC)   (Tokovinin 1997-1999)

MSC - a catalogue of physical multiple stars Tokovinin A.A. <Astron. Astrophys. Suppl. Ser. 124, 75 (1997)> =1997A&AS..124...75T (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Positional data ; Radial velocities Keywords: binaries: general - catalog Description: Data on 728 stellar systems of multiplicity 3 to 7 are given. All systems are physical and, with little exception, hierarchical. They are represented as several "elementary binaries". For each binary the orbital period and separation are given, as well as component magnitudes, spectral types and estimated masses. Orbital elements are also given when available. The present (1999) version of the catalogue is updated as compared to the original 1997 publication, with some changes in the format. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file catalog.dat 86 728 Catalogue of Physical Multiple Stars (systems) systems.dat 107 1690 Individual subsystems orbits.dat 130 653 Orbital parameters remarks.dat 91 196 Remarks index.dat 62 957 IDS-WDS-HD-BD-HIP-HR-ADS cross-index
Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1- 10 A10 --- IDS IDS (based on 1900 position) 12- 13 I2 h RAh Right Ascension J2000 (hours) 15- 16 I2 min RAm Right Ascension J2000 (minutes) 18- 21 F4.1 s RAs Right Ascension J2000 (seconds) 23 A1 --- DE- Declination J2000 (sign) 24- 25 I2 deg DEd Declination J2000 (degrees) 27- 28 I2 arcmin DEm Declination J2000 (minutes) 30- 31 I2 arcsec DEs [0,60] Declination J2000 (seconds) 33- 37 I5 mas/yr pmRA ? Proper motion in RA 39- 43 I5 mas/yr pmDE ? Proper motion in DE 45- 50 F6.1 km/s RV ? Radial velocity 52- 57 F6.4 arcsec plx Parallax 59- 61 A3 --- r_plx Parallax code (1) 63 I1 --- nComp Number of Components (Multiplicity) 65 A1 --- TRAP [T] T for trapezia 67- 86 A20 --- Name Name
Note (1): Parallax code: HIP - trigonometric Hipparcos p12 - spectroscopic for components 1,2 GL - trigonometric from Gliese catalogue DYN - dynamical from visual orbit ORB - orbital for visual/SB2 orbit bib - taken from literature
Byte-by-byte Description of file: systems.dat
Bytes Format Units Label Explanations
1- 10 A10 --- IDS IDS(1900) 12- 15 I4 --- Level Level in hierarchy (1) 17- 19 A3 --- Comp Component designation 21- 26 A6 --- Type Observing technique/status (2) 28- 32 F5.2 d logP ? Logarithm (10) of period in days 34- 41 F8.3 --- Sep Separation or axis 42 A1 --- x_Sep ['"m] Units of sep. (',",m) 44- 46 I3 deg PA Position angle 48- 52 F5.2 mag Vmag1 V-magnitude of the primary 54- 58 A5 --- SP1 Spectral type of the primary 60- 64 F5.2 mag Vmag2 V-magnitude of the secondary 66- 70 A5 --- SP2 Spectral type of the secondary 72- 77 F6.2 solMass Mass1 Mass of the primary 78 A1 --- MCode1 Mass estimation code for primary (3) 80- 85 F6.2 solMass Mass2 Mass of the secondary 86 A1 --- MCode2 Mass estimation code for secondary (3) 88-107 A20 --- Rem Remark
Note (1): Level in hierarchy: 1 11 12 111 112 121 122 and so on... Note (2): Discovery/observing status code: c - wide, possibly C.P.M. system C - C.P.M. system (sep.>3"); The following small letters give the criteria used: h - hypothetical parallax, r - radial velocities, p - photometric distances, m - proper motions. v - close visual or interferometric system (sep.<3") V - visual system with computed orbit a - astrometric system (perturbed motion suspected) A - astrometric orbit for invisible companion is computed s - possibly spectroscopic system (var. RV or composite sp.) S1, S2 - spectroscopic system with computed orbit, single- or double-lined o - occultation binary E - eclipsing binary with known period e - eclipsing binary, period not known Note (3): Mass codes: * - given in the original publication a - estimated from spectral type or B-V color index from Allen tables s - sum of masses for the sub-system(s) q - estimated from primary mass and mass ratio of SB2 m - minimum secondary mass for SB1 v - estimated from magnitude difference of a visual binary : - uncertain, magnitude difference assumed to be 2 mag.
Byte-by-byte Description of file: orbits.dat
Bytes Format Units Label Explanations
1- 10 A10 --- IDS IDS(1900) 12- 15 I4 --- Level Level in hierarchy 17- 26 F10.4 --- Period Period (see X_period for the units) 27 A1 --- x_Period [dy] Units of period (d,y) 29- 38 F10.3 --- T Periastron epoch (y or JD-2400000) 40- 45 F6.3 --- e Eccentricity 47- 53 F7.3 --- a Semi-major axis (see x_a fir the units) 54 A1 --- x_a ["m] Units of axis (",m) 56- 61 F6.1 deg Node P.A. of the node 63- 68 F6.1 deg LongP Longitude of periastron 69 A1 --- n_Node 'A' if primary node, 'B' otherwise 71- 76 F6.1 deg Incl Inclination 78- 83 F6.1 km/s K1 Primary semi-amplitude 85- 90 F6.1 km/s K2 Secondary semi-amplitude 92- 98 F7.1 km/s V0 Center of mass velocity 100-130 A31 --- Comm Comment, reference
Byte-by-byte Description of file: remarks.dat
Bytes Format Units Label Explanations
1- 10 A10 --- IDS IDS(1900) 12- 91 A80 --- Rem Remark text
Byte-by-byte Description of file: index.dat
Bytes Format Units Label Explanations
1- 10 A10 --- IDS IDS(1900) 12- 13 A2 --- COMP Component designation (* for primary comp.) 15- 24 A10 --- WDS WDS(J2000) (Cat. I/237) 26- 31 I6 --- HD ? HD (Cat. III/135) number 33- 43 A11 --- DM BD (Cat. I/122), CD (Cat. I/114) or CPD (Cat. I/108) identifier 45- 50 I6 --- HIP ? HIPPARCOS (Cat. I/239) number 52- 56 I5 --- HR ? HR (Cat. V/50) number 58- 62 I5 --- ADS ? ADS number
Acknowledgements: Andrei Tokovinin History: * 21-May-1996: first installed at CDS * 04-Dec-1998: 2 errors detected and corrected in file "catalog" * 01-Jun-1999: updated version supplied by Andrei Tokovinin
(End) Patricia Bauer [CDS] 03-Jun-1999
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact