V/69 MK, UBV Time and Latitude Stars (Sato+ 1990)
MK Classification and Photometry of Stars Used for Time and Latitude
Observations at Mizusawa and Washington
Sato K., Kuji S.
<Astron. Astrophys. Suppl. Ser. 85, 1069 (1990)>
=1990A&AS...85.1069S 1990A&AS...85.1069S
ADC_Keywords: MK spectral classification ; Photometry, UBV
Description:
MK spectral classifications are given for 591 stars which are used
for time and latitude observations at Mizusawa and Washington. The
classifications in the MK system were made by slit spectrograms of
dispersion 73 A/mm at H-gamma which were taken with the 91cm
reflector at the Okayama Astrophysical Observatory. Photometric
observations in UBV were made with the 1-meter reflector at the
Flagstaff Station of U.S. Naval Observatory.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
data.dat 104 862 Catalog Data
notes.dat 110 163 Original notes
notadd.dat 48 144 Additional notes by Brian Skiff (2004)
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Byte-by-byte Description of file: data.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Star number
5- 12 A8 --- BD Designation in BD (Cat. I/122)
14- 19 I6 --- HD ? Number in HD (III/135)
22- 26 A5 --- GC/FK GC (Cat. I/113) or FK4 (Cat. I/143)
(Byte 22 is "F" in case of FK4)
28- 33 A6 --- Prog Names of each program for time and
latitude observations (1)
35- 38 F4.2 --- Vmag V magnitude
40- 44 F5.2 --- B-V ? B - V color
46- 50 F5.2 --- U-B ? U - B color
51- 52 A2 --- n_U-B ? *: UBV data obtained by Guetter & Hewitt,
(1984PASP...96..441G 1984PASP...96..441G), ** from present work.
blank for already published data )
55 A1 --- n_Sp1 [*] if Sp1 is a standard stars listed by
Garcia et al, Cat. III/149
56- 64 A9 --- Sp1 Spectral type assigned previously
67- 68 I2 --- --- ? Sequential number of record for same star
69 A1 --- n_Sp2 [*] if the adopted spectral type is Sp2
70- 76 A7 --- Sp2 Spectral type assigned in the present paper
to each spectrogram
79- 85 A7 --- Plate Plate number of the spectrogram
87- 96 A10 --- ObsDate Observing date of the spectra
98- 99 I2 --- Width ? Width of spectrogram in units of scale value
100-102 A3 --- Qual Plate quality (2)
104 A1 --- Note [*+] Indicates a note in "notes.dat" (*), or
in "notadd.dat" (+)
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Note (1): the program names are as follows:
V1 = VZT stars for the period 1899 - 1980,
V2 = VZT stars for the period 1980 - 1987,
F1 = FZT stars for the period 1942 - 1967,
F2 = FZT stars for the period 1967 - 1987,
A = Astrolabe stars,
P = PZT stars
Note (2): the quality has the following meaning:
G = good,
SLU = slightly under exposure,
SOV = slightly over exposure,
BRO = broken but used for classification,
FOG = foggy
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Byte-by-byte Description of file: notes.dat notadd.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Star number
4 A1 --- --- [.+] "+" in the file notadd.dat
6- 15 A10 --- Star The name of the star concerned
16 A1 --- --- [:]
18-110 A93 --- Text Text of the note.
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History:
05-Jun-1991: Catalog kindly provided by Shiro Nishimura (ADAC, NAO Japan)
The generation of the description file and the data validation are
carried out by the collaboration of authors and the Astronomical Data
Analysis Center of the National Astronomical Observatory, Japan.
30-Dec-2004: Additional notes provided by Brian Skiff (Lowell Obs.)
(End) Francois Ochsenbein [CDS] 30-Dec-2004