II/308 UBV photoelectric photometry of Cepheids (Mitchell+ 1964)
Photoelectric photometry of Cepheid variable stars
Mitchell R.I., Iriarte B., Steinmetz D., Johnson H.L.
<Bol. Obs. Tonantzintla y Tacubaya 3, 153 (1964)>
=1964BOTT....3..153M 1964BOTT....3..153M
=2011yCat.2308....0M 2011yCat.2308....0M
ADC_Keywords: Photometry, UBV ; Stars, variable
Abstract:
The catalog contains approximatively 10,000 photoelectric observations
of Cepheid variable stars, observed by the authors or derived from
published data. The catalog contains data on more than 300 stars; of
these approximately 230 can be classified as "well-observed".
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 92 349 Stars observed, with basic parameters from Simbad
and pulsation periods from GCV
bott.dat 51 9787 Observations (tables 1 and 2)
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See also:
II/162 : CCD search for Cepheids in Crux and Centaurus (Caldwell+, 1991)
II/285 : Photoelectric observations of Cepheids in UBV(RI)c (Berdnikov, 2008)
III/229 : Radial Velocities of Cepheids (Gorynya+ 1992-98)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Star name (GCVS)
14- 15 I2 h RAh Simbad Right Ascension (ICRS, Ep=J2000) (hour)
17- 18 I2 min RAm Simbad Right Ascension (ICRS, Ep=J2000) (min)
20- 24 F5.2 s RAs Simbad Right Ascension (ICRS, Ep=J2000) (sec)
26 A1 --- DE- Simbad Sign of the Declinatio (ICRS, Ep=J2000)
27- 28 I2 deg DEd Simbad Declination (ICRS, Ep=J2000)
30- 31 I2 arcmin DEm Simbad Declination (ICRS, Ep=J2000)
33- 36 F4.1 arcsec DEs Simbad Declination (ICRS, Ep=J2000)
38- 40 A3 --- OT Simbad object classification (1)
42- 46 F5.2 mag Bmag ? Simbad B band magnitude
48- 52 F5.2 mag Vmag ? Simbad V band magnitude
54- 58 F5.2 mag Jmag ? Simbad J band magnitude
60- 64 F5.2 mag Kmag ? Simbad K band magnitude
66- 78 A13 --- SpType Simbad MK spectral type
80- 91 F12.8 d Per [0.4/99]? Pulsation period, from GCVS (B/gcvs)
92 A1 --- u_Per [:] uncertainty flag on Period
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Note (1): condensed Simbad object class, see
http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes
cC* = Classical Cepheid
WV* = Type II Cepheid (W Vir-type)
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Byte-by-byte Description of file: bott.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Star name (GCVS)
14- 24 F11.3 d JDobs Observation Julian date
27- 31 F5.2 mag Vmag Johnson V-band magnitude
34- 38 F5.2 mag B-V Johnson (B-V) colour index
41- 45 F5.2 mag U-B ? Johnson (U-B) colour index
48 A1 --- u_ref [-] A minus sign indicates observations with
lower weight (frequently on the U-B)
49- 50 I2 --- ref [1/21] Reference number (1)
51 A1 --- f_ref [*] indicates an unconfirmed observation (2)
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Note (1): Reference number as follows:
1 = New data obtained by the authors at the McDonald Observatory
2 = Weaver H., Steinmetz D., Mitchell R. 1961LowOB...5...30W 1961LowOB...5...30W
3 = Oosterhoff P.Th., 1960BAN....15..199O 1960BAN....15..199O
4 = Bahner K., Hiltner W.A., Kraft R.P., 1962ApJS....6..319B 1962ApJS....6..319B
5 = Irwin J.B., 1961ApJS....6..253I 1961ApJS....6..253I (refractor measures)
6 = Irwin J.B., 1961ApJS....6..253I 1961ApJS....6..253I (reflector measures)
7 = Walraven Th., Muller A.B., Oosterhoff P.Th, 1958BAN....14...81W 1958BAN....14...81W
8 = Eggen O.J., 1951ApJ...113..367E 1951ApJ...113..367E
9 = Eggen O.J., Gascoigne S.C.B., Burr E.J., 1951ApJ...113..367E 1951ApJ...113..367E
11 = Abt H.A., Hardie R.H., 1960ApJ...131..155A 1960ApJ...131..155A
12 = Arp H.C., 1957AJ.....62..129A 1957AJ.....62..129A;
Arp H.C., Sandage A., Stephens C., 1959ApJ...130...80A 1959ApJ...130...80A
13 = Arp H.C., 1958ApJ...128..166A 1958ApJ...128..166A
14 = Arp H.C., 1960ApJ...131..322A 1960ApJ...131..322A
15 = Fernie J.S., 1961ApJ...133...64F 1961ApJ...133...64F
16 = Harris D.L., 1953ApJ...118..346H 1953ApJ...118..346H
17 = Hoag A.A. et al., 1961PUSNO..17..343H 1961PUSNO..17..343H
18 = Johnson H.L., 1960ApJ...131..620J 1960ApJ...131..620J
19 = Wampler J., Pesch P., Hiltner W.A., 1961ApJ...133..895W 1961ApJ...133..895W
20 = Sandage A., 1958ApJ...128..150S 1958ApJ...128..150S
21 = Sandage A., 1960ApJ...131..610S 1960ApJ...131..610S
Note (2): unconfirmed observations, in Table 2 of paper, contains the stars
stars for which the range in phase does not cover enough of the light
curve to confirm the Cepheid nature.
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History:
Prepared by B. Skiff (Lowell Obs.)
(End) Francois Ochsenbein [CDS] 16-Nov-2011