J/A+A/18/341 Double stars of equal components (Stock+, 1972)
Double stars of equal components.
Stock J., Wroblewski H.
<Astron. Astrophys., 18, 341-349 (1972)>
=1972A&A....18..341S 1972A&A....18..341S (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; MK spectral classification
Keywords: Double stars - equal components
Abstract:
A list of 271 double stars of nearly equal components with separations
up to about one minute of arc is given. Their physical nature is
demonstrated by their spectral type distribution which coincides with
that of close double stars of equal components, but differs from that
of general field stars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 124 542 The Catalog (Table 1 of paper, improved positions)
notes.dat 60 18 Notes (by B. Skiff)
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
I/259 : The Tycho-2 Catalogue (Hog+ 2000)
I/289 : UCAC2 Catalogue (Zacharias+ 2003)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [SW72] Running identification number
4 A1 --- m_[SW72] Multiplicity index (not in original table)
5 A1 --- f_[SW72] [*] Indicates a note detailed in notes.dat
8- 9 I2 h RAh Right Ascension J2000 (hours) (1)
11- 12 I2 min RAm Right Ascension J2000 (minutes) (1)
14- 18 F5.2 s RAs Right Ascension J2000 (seconds) (1)
20 A1 --- DE- Declination J2000 (sign) (1)
21- 22 I2 deg DEd Declination J2000 (degrees) (1)
24- 25 I2 arcmin DEm Declination J2000 (minutes) (1)
27- 30 F4.1 arcsec DEs Declination J2000 (seconds) (1)
32 A1 --- rPos [MTU] Source of position (1)
34- 42 A9 --- GSC Identification in GSC (Cat. I/254)
44- 55 A12 --- Tycho-2 Identification in Tycho-2 (Cat. I/259)
56- 65 A10 --- CD Identification in Cordoba Durchmusterung
(Cat. I/114)
67- 76 A10 --- CPD Identification in Cape Durchmusterung
(Cat. I/108)
79- 82 F4.1 mag Vmag Visual magnitude (not from the table)
85- 89 A5 --- SpType MK spectral type
92-102 A11 --- BD/HD Other identification
104-124 A21 --- Rem Remarks by Brian Skiff
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Note (1): the positions, more accurate than those in the original
catalog, were computed by B. Skiff in 2004 from the following sources:
M: 2MASS (Cat. II/246)
T: Tycho-2 (2000A&A...357..367H 2000A&A...357..367H, Cat. I/259)
U: UCAC2 (2004AJ....127.3043Z 2004AJ....127.3043Z, Cat. I/289)
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [SW72] Running identification number
4 A1 --- m_[SW72] Multiplicity index (not in original table)
8- 60 A53 --- Text Text of note (by B. Skiff)
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History:
* 10-May-2004: Prepared by B. Skiff
(End) Brian Skiff Francois Ochsenbein [CDS] 10-May-2004