J/A+A/364/712 BV photometry in Draco molecular cloud (Penprase+, 2000)
Optical observations of the Draco molecular cloud.
I. Catalog of B and V magnitudes for selected areas.
Penprase B.E., Rhodes J.D., Harris E.L.
<Astron. Astrophys. 364, 712 (2000)>
=2000A&A...364..712P 2000A&A...364..712P
ADC_Keywords: Molecular clouds ; Photometry, UBV
Keywords: ISM: clouds - ISM: dust, extinction - ISM: general - ISM: structure -
Galaxy: halo - techniques: photometric
Description:
To investigate the distance and linear dimensions of the Draco
Molecular Cloud (MBM 41) we have obtained new CCD photometry for a
selection of stars in 20 selected areas toward the cores of the cloud.
The selected areas were chosen to coincide with the brightest
IRAS emitting portions of the cloud, and also with dense 12CO
emission from the cloud. For each area we have obtained V and B
photometry, and a subset of the fields has also been observed through
a narrow-band Hα filter and in the U band.
We present V and B magnitudes for the 362 stars which have
high-quality observations in both bands.
The observations were made during the nights of June 29 and June 30,
1993 at the Palomar Observatory, using the 1.5-meter telescope and
Palomar 6 Tektronix CCD camera with 24 micron pixels.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 55 360 *V and B-V values and coordinates for the
program stars (Appendix A)
table6.dat 77 71 *Stars with complete V, B-V, U-B, and [V-α]
photometry, and comparison with night 1
(Appendix B)
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Note on table5.dat, table6.dat: Number of stars differ from the paper
(360 instead of 362 for table5, 71 instead of 75 in table6).
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- PRH Object designation (PRH BHHMMSS+DDMMSS)
19 A1 --- f_PRH [*] for non-unique designations
20- 24 F5.2 mag Vmag V magnitude
26- 30 F5.2 mag B-V B-V colour index
32- 33 I2 h RAh Right ascension (1950)
35- 36 I2 min RAm Right ascension (1950)
38- 42 F5.2 s RAs Right ascension (1950)
44 A1 --- DE- Declination sign
45- 46 I2 deg DEd Declination (1950)
48- 49 I2 arcmin DEm Declination (1950)
51- 55 F5.2 arcsec DEs Declination (1950)
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- PRH Object designation (PRH BHHMMSS+DDMMSS)
20- 24 F5.2 mag Vmag1 ? Night 1 V magnitude
26- 29 F4.2 mag B-V1 ? Night 1 B-V colour index
31- 35 F5.2 mag Vmag2 Night 2 V magnitude
37- 40 F4.2 mag B-V2 Night 2 B-V colour index
42- 46 F5.2 mag U-B U-B colour index
48- 52 F5.2 mag [V-alpha] Colour index [V-α]
54- 55 I2 h RAh Right ascension (1950)
57- 58 I2 min RAm Right ascension (1950)
60- 64 F5.2 s RAs Right ascension (1950)
66 A1 --- DE- Declination sign
67- 68 I2 deg DEd Declination (1950)
70- 71 I2 arcmin DEm Declination (1950)
73- 77 F5.2 arcsec DEs Declination (1950)
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History:
The data files were received in July 2001 from Bryan Penprase
(End) James Marcout, Patricia Bauer [CDS] 23-Jul-2001