II/303 UBVRI observations of FKSZ stars (Carrasco+ 1986-1997)
UBVRI photometry of FK4 and FK4 supplement stars
Carrasco G., Loyola P., Moreno H., Ledoux C.
<Astron. Astrophys. Suppl. Ser. 65, 33 (1986); 70, 369 (1987); 76, 1 (1988);
82, 553 (1990); 100, 489 (1993); 126, 311 (1997)>
=2010yCat.2303....0C 2010yCat.2303....0C
=1986A&AS...65...33M 1986A&AS...65...33M
=1987A&AS...70..369C 1987A&AS...70..369C
=1988A&AS...76....1C 1988A&AS...76....1C
=1990A&AS...82..553C 1990A&AS...82..553C
=1993A&AS..100..489C 1993A&AS..100..489C
=1997A&AS..126..311C 1997A&AS..126..311C
ADC_Keywords: Photometry, UBVRI ; Stars, fundamental
Keywords: photometry ; fundamental stars
Description (from B. Skiff):
In a series of papers in the A&A Supplements, Carrasco et al. provide
very good UBVRI data for about 1000 stars. The stars are variously
identified in the source papers, and are variously integrated into the
General Catalog of Photometric Data (GCPD, see Cat. II/267).
I have made a combined file showing HD numbers for the stars along
with coordinates. The last two lists are available in VizieR (items
J/A+AS/100/489 and J/A+AS/126/311). The GCPD shows all the papers, but
for one it omits the VRI colors. The GCPD does usefully compute R-I
colors, which are added here as well (Carrasco et al.give V-R and
V-I). The stars are arranged in the order they appear in the papers,
i.e. with the E-region standards first, then the general field stars.
The authors calibrated their data consistently against Graham E-region
standards. While adding the completed list to my comprehensive file, I
noticed additional stars in common with the Cousins F-region
standards, Landolt stars, and with GSPC stars (see Cat. II/272)
observed in UBVRI at SAAO. These can all be considered as "pretty
good" standards or secondary standards. The Carrasco data look
especially good in this comparison, excepting the first paper with
Moreno (1986A&AS...65...33M 1986A&AS...65...33M).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
ubvri.dat 154 1244 UBVRI data with position
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See also:
II/118 : UBVRI standards around Celestial Equator (Landolt 1983)
II/183 : UBVRI Photometric Standards (Landolt 1992)
J/AJ/133/2502 : UBVRI Standard Stars (Landolt, 2007)
J/A+AS/100/489 : UBVRI photometry of FKSZ stars (Carrasco+ 1993)
J/A+AS/126/311 : UBVRI photometry of FK5 Ext. stars (Carrasco+ 1997)
Byte-by-byte Description of file: ubvri.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- Bibcode 19-digit bibcode of the publication
22- 33 A12 --- Name Star name
50- 51 I2 h RAh Right Ascension J2000 (hours)
53- 54 I2 min RAm Right Ascension J2000 (minutes)
56- 60 F5.2 s RAs Right Ascension J2000 (seconds)
62 A1 --- DE- Declination J2000 (sign)
63- 64 I2 deg DEd Declination J2000 (degrees)
66- 67 I2 arcmin DEm Declination J2000 (minutes)
69- 72 F4.1 arcsec DEs Declination J2000 (seconds)
74 A1 --- s [TU] Source of positionC: T=Tycho-2 (I/259),
U=USNO-B1.0 (I/284)
78- 83 F6.3 mag Vmag V magnitude
85- 90 F6.3 mag B-V B-V colour index
92- 97 F6.3 mag U-B U-B colour index
99-104 F6.3 mag V-R V-R colour index
106-111 F6.3 mag R-I ? R-I color index
113-118 F6.3 mag V-I ? V-I color index
122-154 A33 --- Remarks Remarks, by B. Skiff
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History:
Prepared by Brian Skiff (Lowell Obs.)
(End) Brian Skiff [Lowell Obs.], Francois Ochsenbein [CDS] 28-Dec-2010