II/48 A Reference List for the UBV System (Nicolet 1976)
A Reference List for the UBV System
Nicolet B.
<Bull. Inf. CDS No. 11, p. 20 (1976)>
=1976BICDS..11...20N 1976BICDS..11...20N
ADC_Keywords: Photometry, UBV; References
Description:
This catalog is a file of 13422 records giving for each star, an
identification, V, B-V, and U-B. Care was taken to place all
measurements on the Johnson UBV system by determining possible
systematic differences between measurements by Johnson and those by
other observers.
Introduction:
The list of Johnson et al. (1966) of 4777 stars was considered as
fundamental and given absolute priority. The differences between these
data and those for the same stars in other lists in which Johnson was
a coauthor were used to determine the systematic corrections and the
dispersions were used to determine the weight for each of these lists.
Finally, other lists were treated in the same way with absolute
priority given to those data in the lists with Johnson as a coauthor.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
data.dat 33 13425 The catalogue
nmsys.txt 80 245 Mermilliod numbering system
refs.txt 79 68 References used in 3 step file preparation
(table 1 of paper)
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See also:
II/168 : Catalogue of Homogeneous Means in the UBV System (Mermilliod 1991)
Byte-by-byte Description of file: data.dat
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Bytes Format Units Label Explanations
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1- 11 F11.8 --- ID *Star identification in Geneva system
12 A1 --- m_ID ID multiplicity suffix
14- 18 F5.2 mag Vmag ? V magnitude
21- 26 F6.3 mag B-V ? B-V Color Index
28- 33 F6.3 mag U-B ? U-B Color Index
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Note on ID:
see nmsys.dat (Mermilliod, 1973)
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References:
Hauck B. 1973, in Ch. Fehrenbach and B.E. Westerlund (eds), Spectral
Classification and Multicolour Photometry, p. 285, D. Reidel, Dordrecht
Johnson H.L., Mitchell R.I., Iriarte B. and Wisniewski W.Z. 1966, Comm. Lunar
and Planet. Lab. no. 63
Lindemann E. and Hauck B. 1973, Astron. Astrophys. Suppl. 11, 119
Mermilliod J.C. 1973, Rapport interne du CDS 5/1973.
Mermilliod J.C. and Nicolet B. 1976, in preparation.
Nicolet B. 1976, Bull. Inf. CDS No. 11, 20.
(End) Julie Anne Watko [SSDOO/ADC] 10-May-1996