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V/15 SAO and Supplementary Data (Ochsenbein 1980)
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SAO and Supplementary Data
Ochsenbein F.
<Bull. Inf. CDS 19, 74 (1980)>
=1980BICDS..19...74O
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ADC_Keywords: Radial velocities ; Combined data ; Photometry, UBV ;
MK spectral classification
Description:
This SAO catalogue (Smithsonian Astrophysical Observatory Catalogue of
258,997 stars, 1966; see catalog <I/131>), connected to the CSI
(Catalogue of Stellar Identifications, see Ochsenbein et al. 1981),
enables researchers to retrieve reliable astrophysical data for about
20,000 stars. This includes SAO identifications, CSI identifications,
equatorial coordinates (B1950), Galactic coordinates, proper motions,
photometric data, spectral classifications, radial velocity, etc. The
SAO/HD cross index for about 188,000 stars allows users to find (or
enter) the catalog with the HD number of the star. The notes
contain detected errors, the value of the trigonometric parallax taken
from the Jenkins' (1952, 1963) catalogues, the double star designation
ADS or IDS, and the name of the star.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 134 258942 The catalog
hdsao.dat 18 187594 Cross index of SAO numbers in HD order
notes.dat 78 37500 Remarks for SAO 1 - 99999
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See also:
I/131 : SAO Star Catalog J2000 (SAO Staff 1966; USNO, ADC 1990)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- SAO [1,258997]+ SAO number
7 A1 --- n_SAO [R] a note is detailed in file "notes.dat"
9- 14 I6 --- HD [1,359083]? HD number
15 A1 --- m_HD [/A-C] component; / indicates
consecutive BD numbers
17- 25 A9 --- DM *DM designation
27- 28 I2 --- DMcode *[0-43] DM catalog
30- 31 I2 h RAh Right ascension - hours (1950.0)
33- 34 I2 min RAm Right ascension - minutes (1950.0)
36- 41 F6.3 s RAs Right ascension - seconds (1950.0)
43 A1 --- DE- Declination sign
44- 45 I2 deg DEd Declination degrees (1950.0)
47- 48 I2 arcmin DEm Declination minutes (1950.0)
50- 54 F5.2 arcsec DEs Declination seconds (1950.0)
56- 61 F6.2 deg GLON Galactic longitude
63- 68 F6.2 deg GLAT Galactic latitude
70- 76 F7.3 arcsec/a pmRA Proper motion in RA
77 A1 --- q_pmRA *[A-E] Quality of proper motion in RA
79- 84 F6.3 arcsec/a pmDE Proper motion in DE
85 A1 --- q_pmDE *[A-E] Quality of proper motion in DE
87- 91 F5.2 mag Mag *? Generally V magnitude, sometimes B
92- 93 A2 --- q_Mag *[A-E:* ] Quality of/note on magnitude
94- 99 F6.3 mag B-V ?B-V color
101 A1 --- q_B-V *[A-E:] Quality of B-V
103-108 F6.3 mag U-B ?U-B color
109 A1 --- q_U-B *[A-E:] Quality of U-B
111 A1 --- q_Sp *[1-4J] Quality of spectral type
112 A1 --- per Period (punctuation)
113-126 A14 --- Sp Spectral type
128-133 F6.1 km/s RV *?Radial Velocity
134 A1 --- q_RV *[A-F] Quality on radial velocity
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Note on DM, DMcode: DM covers the Bonner, Cordoba and Cape
Durchmusterungen designations: when byte 18 blank,
DMcode specifies which DM:
0 .. 19 = BD
20 .. 39 = CoD
40 .. 59 = CPD
When byte 18 is not blank (contains a dash), the star is not
in any Durchmusterung, and DMcode is non-zero for components of
multiple systems.
Note on q_pmRA and q_pmDE:
A = me. <= 0.01"/a
B = me. <= 0.02"/a
C = me. <= 0.03"/a
D = me. <= 0.04"/a
E = me. > 0.04"/a
Note on Mag:
From Nicolet if available (1978a); otherwise from Blanco et al.
(1968) improved by Ochsenbein (1974)
Note on q_Mag:
: only a CSI magnitude with 0.1 magnitude precision
** indicates that Mag contains a blue magnitude
Quality index from compilation of UBV by Nicolet:
A = very good (4 in original catalog) to D = poor (1 in original catalog)
Note on q_B-V and q_U-B: Quality index from Nicolet compilation:
A = very good (4 in original catalog) to D = poor (1 in original catalog)
Note on q_Sp:
J = from Jaschek (1978, see catalog <III/42>)
1 to 4 = Quality from Michigan Catalog (N. Houk, 1975, 1978.
see catalogues <III/31> and <III/51>) where 1 is optimum
and 4 is very poor
blank = from CSI
Note on RV:
Taken, as available in the following order:
the "Catalogue of Stellar Radial Velocities" by Evans (1967 )
(see catalog <III/47>)
the "General Catalogue of Stellar Radial Velocities" by Wilson (1953)
(catalog <III/21>)
the "Bibliographic Catalogue of Radial Velocities" by Barbier (1975)
the "Bibliography of Stellar Radial Velocities" by Abt et al. (1972)
(catalog <III/4>)
Note on q_RV:
Quality index as in Wilson (catalog <III/21>), i.e.
A good (p.e. <= 0.9km/s)
B (p.e. <= 2km/s)
C (p.e. <= 5km/s)
D poor (p.e. <= 10km/s)
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Byte-by-byte Description of file: hdsao.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- HD_cat [HD] Catalog acronym
3- 8 I6 --- HD HD number
9 A1 --- m_HD HD component (in multiple systems)
10- 12 A3 --- SAO_cat [SAO] Catalog acronym
13- 18 I6 --- SAO SAO number
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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- 6 I6 --- SAO [1/258997] SAO number
8- 78 A71 --- Text Text of remark
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Missing stars:
Fifty four stars have been deleted because they are duplicates of other
entries. (Normally, this resulted from the fact that more than one
Durchmusterung cover the same declination zone.) These are the following:
24671 100161 186717 215182 222287 228851 235959 241172
31219 106477 192426 216112 224194 229057 235973 242603
58906 133461 193858 217746 225134 229832 236668 242964
62238 142403 193896 218092 225327 231638 238176 246009
67452 172631 201604 218513 226939 231702 238511 251306
92316 180619 210293 219513 227039 232934 240305
96663 181584 210294 222077 228025 234391 241167
References:
Ochsenbein, F., Bischoff, M., Egret, D.: 1981, A&AS 43, 265
Jenkins, L.F.: 1952, "General Catalogue of Stellar Trigonometric
Parallaxes", Yale Univ. Obs. (see catalog <I/10>)
Jenkins, L.F.: 1963, "Supplement to the General Catalogue of Stellar
Trigonometric Parallaxes", Yale Univ. Obs. (see catalog <I/81>)
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(End) N. G. Roman [ADC/SSDOO] 12-Sep-1997