J/PASP/94/244 UBVRI standard stars in the E-regions (Graham, 1982)
UBVRI standard stars in the E-regions.
Graham J.A.
<Publ. Astron. Soc. Pac. 94, 244 (1982)>
=1982PASP...94..244G 1982PASP...94..244G
ADC_Keywords: Photometry, UBVRI ; Stars, standard
Keywords: UBVRI photometry - standard stars
Abstract:
Photometry on the UBVRI Kron-Cousins system is presented for 102 stars
covering the magnitude range 7 to 16 in the nine Harvard E-regions.
These stars, at declination close to -45°, are suitable for use as
Southern Hemisphere standards in the photometry of faint stars and
galaxies. The large magnitude range in most fields makes the sequences
useful for the calibration of the Pickering-Racine wedge, a device
widely used to extend photometric sequences to fainter limits on
photographic plates. Positions accurate to a few arcseconds as well as
identification charts are given for each star.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table.dat 103 102 Graham UBVRI standards in the Harvard E regions
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See also:
II/50 : Photometric Southern Standard Stars (Cousins 1971)
J/other/SAAOC/15.30 : DDO photometry of E-region stars (Cousins 1993)
J/other/RGOB/49.3 : Standard magnitudes in the E regions (Cousins+ 1962)
Byte-by-byte Description of file: table.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Star Star designation, <[CS62] EN AAA> in Simbad
14 A1 --- n_Star [*] Remark about binarity / proper motion (1)
16- 17 I2 h RAh Right ascension (J2000.0)
19- 20 I2 min RAm Right ascension (J2000.0)
22- 25 F4.1 s RAs Right ascension (J2000.0)
27 A1 --- DE- Declination sign (J2000.0)
28- 29 I2 deg DEd Declination (J2000.0)
31- 32 I2 arcmin DEm Declination (J2000.0)
34- 35 I2 arcsec DEs Declination (J2000.0)
37- 42 F6.3 mag Vmag V magnitude
44- 49 F6.3 mag U-B ? U-B colour index
51- 56 F6.3 mag B-V B-V colour index
58- 63 F6.3 mag V-R V-R colour index
65- 70 F6.3 mag R-I ? R-I colour index
72- 76 F5.3 mag e_Vmag rms uncertainty on Vmag
78- 82 F5.3 mag e_U-B ? rms uncertainty on U-B
84- 88 F5.3 mag e_B-V rms uncertainty on B-V
90- 94 F5.3 mag e_V-R rms uncertainty on V-R
96-100 F5.3 mag e_R-I ? rms uncertainty on R-I
102-103 I2 --- Nobs Number of nights on which the star was observed
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Note (1): Individual notes:
[CS62] E5 m = double.
[CS62] E8 61 = large proper motion: epoch/equinox J2000 Hipparcos
position given
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Acknowledgements: Brian Skiff
(End) Patricia Bauer [CDS] 05-Feb-1999