J/A+AS/118/239 Yunnan Observatory photoelectric astrolabe catalogue (Hu+ 1996)
The photoelectric astrolabe catalogue of Yunnan Observatory (YPAC)
Hu H., Li D., Li Y., Wang R., Li X.
<Astron. Astrophys. Suppl. Ser. 118, 239 (1996)>
=1996A&AS..118..239H 1996A&AS..118..239H (SIMBAD/NED BibCode)
ADC_Keywords: Fundamental catalog ; Positional data
Keywords: catalogue
Description:
The positions of 53 FK5, 70 FK5 Extension and 486 GC stars are given
for equator and the equinox J2000.0 and for the mean observation epoch
of each star which are determined with the photoelectric astrolabe of
Yunnan Observatory. The internal mean errors in right ascension and
declination are 0.046" and 0.059", respectively. The mean observation
epoch is 1989.51.
Errata:
* Star YPAC 448 indicated a wrong GC 5002 number in the original table;
it was changed to GC 9992 at CDS on 08-Oct-1996.
* Star YPAC 581 indicated a wrong GC 27500 number, corrected to 27999.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1 70 609 J2000 positions of YPAC
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See also:
I/149 : Fifth Fundamental Catalogue (FK5)
I/175 : Fifth Fundamental Catalogue (FK5) - Extension
I/113 : General Catalogue of 33342 stars (GC)
Byte-by-byte Description of file: table1
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Bytes Format Units Label Explanations
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1- 3 I3 --- YPAC Number in YPAC
5- 12 A8 --- Catal Catalogue's designation (1)
14- 17 F4.2 mag Vmag Visual magnitude from above catalogue.
19- 20 I2 h RAh Right ascension J2000.0
22- 23 I2 min RAm Right ascension J2000.0
25- 30 F6.3 s RAs Right ascension J2000.0
32 A1 --- DE- Declination sign
33- 34 I2 deg DEd Declination J2000.0
36- 37 I2 arcmin DEm Declination J2000.0
39- 43 F5.2 arcsec DEs Declination J2000.0
45- 46 I2 ms e_RAs Internal precision of right ascension.
48- 49 I2 10mas e_DEs ? Internal precision of declination.
51- 55 F5.2 yr Mean epoch of observations minus 1900.00.
57- 59 I3 ms DRA ? Differences YPAC-FK5 or YPAC-CMC in RA
61- 63 I3 10mas DDE ? Differences YPAC-FK5 or YPAC-CMC in DE
65- 70 I6 --- Name ? Number of FK5 or CMC, where the one that is
larger than 10000 is that of the CMC. (2)
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Note (1): Name from FK5-Fifth Fundamental Catalogue; EXT-FK5 Extension
or GC-Boss General Catalogue.
Note (2): These stars are used to calculate the external accuracy of YPAC.
When the number in YPAC larger than 221, bytes 57-70 are blank,
since these stars all are GC stars of non-FK5 or non-CMC.
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(End) Patricia Bauer [CDS] 28-Jun-1996