I/72 AGK3R mean positions and proper motions (Corbin, 1978)
Catalog of the mean positions and proper motions of 20194 AGK3R stars
Corbin T.E.
=1978moas.coll..505C
=1978yCat.1072....0C 1978yCat.1072....0C
ADC_Keywords: Positional data ; Proper motions
Abstract:
The AGK3R and SRS are lists of reference stars containing,
respectively, 21,499 stars in the northern hemisphere and 20,500 stars
in the southern hemisphere. This paper presents computations of proper
motions of these two groups of stars that will permit the use of the
observed positions away from the epochs of observation. Tables are
presented summarizing the mean errors of AGK3R proper motions and the
observational histories of AGK3R and SRS stars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 82 20194 The catalog of mean positions and proper motions
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Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- AGK3R [1/21499] Final AGK3R serial number
6- 13 A8 --- BD Bonner Durchmusterung designation
(catalogs I/119 and I/122)
14- 15 I2 h RAh Right Ascension B1950 (hours) (1)
16- 17 I2 min RAm Right Ascension B1950 (minutes) (1)
18- 22 I5 ms RAms Right Ascension B1950 (0.001seconds) (1)
23 A1 --- DE- Declination B1950 (sign) (1)
24- 25 I2 deg DEd Declination B1950 (degrees) (1)
26- 27 I2 arcmin DEm Declination B1950 (minutes) (1)
28- 31 I4 10mas DEcs [0/6000] Declination B1950 (0.01arcseconds) (1)
32- 34 I3 ms e_RAms Mean error on right ascension
35- 37 I3 10mas e_DEcs Mean error on Declination
38- 43 I6 10us/yr pmRA Proper motion in Right Ascension
(in 0.001s/century) (1)
44- 50 I7 0.1mas/yr pmDE Proper motion in Declination
(in 0.01arcsec/century) (1)
51- 54 I4 10us/yr e_pmRA Mean error on pmRA
55- 58 I4 0.1mas/yr e_pmDE Mean error on pmDE
59- 65 I7 0.001yr EpRA Epoch of Right Ascension and pmRA
66- 72 I7 0.001yr EpDE Epoch of Declination and pmDE
73- 74 I2 --- Na [2/21] Number of positions in RA
75- 76 I2 --- Nd [2/21] Number of positions in Declination
77- 79 I3 0.01 Wa [33/933] Weight on RA
80- 82 I3 0.01 Wd [67/998] Weight on Declination
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Note (1): Positions and proper motions are in the FK4 reference frame
for Equator B1950.0 and for the epochs EpRA and EpDE.
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See also:
I/138 : Southern Reference Star Catalogue (Smith+ 1988)
I/161 : AGK3R (Smith 1990)
History:
* The catalog was prepared at U.S. Naval Observatory, and supplied
to CDS in March 1981.
* 07-Nov-2014: catalog standardized
(End) Francois Ochsenbein [CDS] 07-Nov-2014