J/PASP/114/298 BVI photometry in NGC 300 (Pietrzynski+, 2002)
Photometric standard stars in the BVI system in a wide field centered on the
spiral galaxy NGC 300.
Pietrzynski G., Gieren W., Udalski A.
<Publ. Astron. Soc. Pac. 114, 298 (2002)>
=2002PASP..114..298P 2002PASP..114..298P
ADC_Keywords: Galaxies, photometry ; Stars, standard ; Photometry, UBVRI
Abstract:
Based on 13 nights of observations of four fields in NGC 300, we have
set up an extensive sequence of stars with accurate BVI photometry
covering a relatively large (25'x25') region centered on this galaxy.
This sequence of standard stars is very useful for calibrating the
photometry of variable stars and other objects in NGC 300 and other
galaxies obtained from wide-field mosaic images. Our standard-star
list contains B, V, and I measurements for 390 stars. The accuracy of
the zero points in the V filter and B-V color is better than 0.02mag,
and about 0.03mag for the V-I color. We found very good agreement
between our measurements and those previously obtained by Walker for
26 stars near NGC 300.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 72 390 The catalog of BVI photometric standard stars in
a wide field centered on NGC 300
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Sequential number
5- 6 I2 h RAh Right ascension (J2000.0)
8- 9 I2 min RAm Right ascension (J2000.0)
11- 15 F5.2 s RAs Right ascension (J2000.0)
17 A1 --- DE- Declination sign (J2000.0)
18- 19 I2 deg DEd Declination (J2000.0)
21- 22 I2 arcmin DEm Declination (J2000.0)
24- 27 F4.1 arcsec DEs Declination (J2000.0)
29- 34 F6.3 mag Bmag Johnson B magnitude
36- 40 F5.3 mag e_Bmag rms uncertainty on Bmag
42 I1 --- o_Bmag Number of observations in B band
44- 49 F6.3 mag Vmag Johnson V magnitude
51- 55 F5.3 mag e_Vmag rms uncertainty on Vmag
57 I1 --- o_Vmag Number of observations in V band
59- 64 F6.3 mag Icmag Cousins I magnitude
66- 70 F5.3 mag e_Icmag rms uncertainty on Icmag
72 I1 --- o_Icmag Number of observations in Ic band
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History:
From electronic version of the journal
(End) Patricia Bauer [CDS] 22-Apr-2002