II/8 Catalogue of UVBGRI measurements (Nicollier 1975)
Catalogue of UVBGRI (Stebbins and Withford) measurements:
Published data and Weighted Means
Nicollier C.
<Rapport Interne CDS 2, updated (1975)>
ADC_Keywords: Photometry, UVBGRI ;
Description:
This compilation contains the published results and the weighted
means of the observations in the photoelectric photometric system
described by Stebbins and Withford (1943).
The six filters were selected to give nearly the same response
in each of the six spectral regions for a solar-type star.
The mean wavelengths or the filters are:
----------------------------------------------------
Filter U B V G R I
Wavelength (nm) 353 422 488 570 719 1030
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The reduction of this system is made in order that
(B+G+R) = 0.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
mean.dat 53 1297 Mean photometric colours
obs.dat 64 1702 Published Measurements
refs.dat 71 44 References of observations
codes.txt 66 178 Description of LID identification system
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Byte-by-byte Description of file: mean.dat obs.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- LID Identification in Lausanne/Geneve system (1)
12 A1 --- m_LID [D12] Multiplicity indicator (1)
14- 18 F5.2 mag Umag ? Colour in Ultra filter (2)
21- 25 F5.2 mag Vmag ? Colour in Violet filter (2)
28- 32 F5.2 mag Bmag Colour in Blue filter (2)
35- 39 F5.2 mag Gmag Colour in Green filter (2)
42- 46 F5.2 mag Rmag Colour in Red filter (2)
49- 53 F5.2 mag Imag Colour in Infra filter (2)
55 A1 --- n_Nm [/*] '/' indicates an unknown Nmes value,
'*' that Nmes represents a minimal value. (3)
57- 58 I2 --- Nm ? Number of measurements (3)
60- 64 I5 --- Ref [6001/6026]? Reference (see file refs) (3)
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Note (1): Keys to the code are described in file "codes.txt"; column "m_LID"
'D': indicates a double star with both components measured simultaneously;
'1' and '2': indicates components of a composite system.
Note (2): See Decription above; the colours are such that (B+G+R) = 0.
Note (3): Values only for "obs" file.
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- RefNo [6001/6026]+= Reference number
7- 9 A3 --- Kron The parenthesized letter indicates a
reference in Kron et al. (1972)
12- 71 A60 --- Text Text of reference
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See also:
II/75 : R and I magnitudes compiled by Jasniewicz (1982)
GCPD/06 : General Catalogue of Photometric Data, system #06
References:
Jasniewicz B., 1982, A&AS 49, 99 (Catalogue: II/75)
Kron G.E., Guetter H.H., Riepe B.Y., 1972, Publ. U.S. Naval Obs. 20, part 5.
Stebbins J., Withford A.E., 1943, ApJ 98, 20
Historical Notes:
* July 1975: Magnetic tape with data provided to CDS by M. Mermilliod
(Lausanne/Geneva Observatory)
* September 1995: documentation produced at CDS
* 21-jul-2016: file names standardized
(End) Francois Ochsenbein [CDS] 12-Sep-1995