J/AJ/114/1190 NSV 09295: A double-mode RR Lyrae (Garcia-Melendo+ 1997)
NSV 09295: A double-mode RR Lyrae variable
Garcia-Melendo E., Clement C.M.
<Astron. J. 114, 1190 (1997)>
=1997AJ....114.1190G 1997AJ....114.1190G
ADC_Keywords: Stars, variable ; Photometry, CCD
Abstract:
An analysis of more than 2000 CCD observations of the field RR Lyrae
star NSV 09295 shows that the star is a double-mode RR Lyrae (RRd)
variable with P0=0.46334d and P1=0.34423d. This brings the total
of known field RRd stars in the Milky Way galaxy to four. These four
variables are compared with the RRd stars in galactic globular
clusters and with the field RRd stars in the LMC, and in the Draco and
Sculptor dwarf galaxies. It appears that all known RRd stars have a
metal abundance of less than [Fe/H]=-1.6.
(c) 1997 American Astronomical Society.
Description:
The table lists the magnitudes of star NSV 09295 relative to the star
GSC 1001.0757 which has a photovisual magnitude PAL-V1=13.43±0.36
according to the Guide Star Catalogue. The times listed are the
Heliocentric Julian Dates at the time of mid-exposure.
Objects:
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RA (2000) DE Designation(s)
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17 37 25.8 +11 22 25 NSV 09295 = GSC 01001-00723
17 37 32.3 +11 20 26 GSC 01001-1265
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 24 2041 The observations
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 14 F14.6 JD HJD Heliocentric Julian Date
15- 24 F10.6 mag DVmag Delta V magnitude (NSV 09295 - GSC 1001.1265)
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Origin: AAS CD-ROM series, Volume 9, 1997 Lee Brotzman [ADS] 31-Oct-1997
(End) [CDS] 05-Feb-1998