J/PASP/106/828 BVRI photometry of Omega Cen (Walker 1994)
BVRI photometry of the omega Centauri Hubble Space Telescope calibration field
Walker A.R.
<Publ. Astron. Soc. Pac. 106, 828 (1994)>
=1994PASP..106..828W 1994PASP..106..828W
ADC_Keywords: Photometry, CCD ; Clusters, globular
Abstract:
BVRI photometry is given for stars in the omega Centauri
(= NGC 5139 = C 1323-472) calibration field for the Wide
Field/Planetary Camera of the Hubble Space Telescope.
Objects:
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RA (2000) DE Designation(s)
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13 26 46 -47 28.6 omega Cen = NGC 5139 = C 1323-472
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 43 36 Photometry for the HST Calibration Stars
table5.dat 50 193 Photometry of all stars measured in the
calibration field
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See also:
J/AJ/105/1196 : HST WF/PC photometric calibration (Harris+, 1993)
Byte-by-byte Description of file: table4.dat table5.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Star Star designation (2)
6- 10 F5.1 pix Xpos ? X position (1)
12- 16 F5.1 pix Ypos ? Y position (1)
18- 23 F6.3 mag Vmag ? V magnitude
25- 29 F5.3 mag B-V ? B-V colour index
31- 35 F5.3 mag V-R ? V-R colour index
36 A1 --- u_V-R Uncertainty flag on V-R
38- 42 F5.3 mag V-I ? V-I colour index
43 A1 --- u_V-I Uncertainty flag on V-I
45- 50 F6.3 mag Imag ? I magnitude
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Note (1): Center near 13:25:37-47:35:38 (J2000).
1 pix = 0.38arcsec. North is left, East is down.
Note (2): This number is used in Simbad as:
-- table4: Cl* NGC 5139 HHB NNNN (Harris et al., Cat. J/AJ/105/1196)
-- table5: Cl* NGC 5139 Walk NNN
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History: Prepared via OCR at CDS.
(End) James Marcout, Patricia Bauer [CDS] 25-Mar-1997