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II/4                UBV and UcBV Photoelectric Catalogue     (Blanco+ 1968)

Photoelectric Catalogue: magnitude and colours of stars in the UBV and UcBV systems Blanco V.M., Demers S., Douglass G.C., FitzGerald M.P. <Publ. U.S. Naval Obs. 2nd series, 21, Washington D.C. (1968)> =1968PUSNO..21.....B
ADC_Keywords: Photometry, UcBV ; Photometry, UBV ; Colors Description: This catalog is an improved version of the Blanco et al. compilation, with additional data from the Catalog of Stellar Identifications. and additional stars apparently missed from the publications surveyed by Blanco et al. (see Ochsenbein 1974A&AS...15..215O, section 9) File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file catalog.dat 162 34807 The Photoelectric Catalog
See also: II/122 : UBV Photoelectric Catalog: data 1953-1985 (Mermilliod 1987) V/26 : CSI catalogue with selected data (Ochsenbein 1983) Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1 A1 --- Rem [*A] if a remark exists in the original catalog, or Additional star 2 A1 --- Err [E] if an error is very probable (measurement or identification) 3 A1 --- Var [VW] V if a star is variable, W if suspected variable (according to the referenced publication) 4 A1 --- Dbl [D] if the star is a double, (according to the referenced publication) 5 A1 --- Std [S] if the star is taken as a standard for a set of measures 6- 10 I5 --- Seq [1,21765]+= Running number in the Photoelectric Catalog (3) 11- 16 I6 --- HD ? Identification in HD Catalog (III/135) 17- 18 I2 --- m_HD ? Code for the HD catalog (1) 19- 23 I5 --- GC ? Number in Boss' General Catalog (I/113) 24- 31 I08 --- AGK3 ? Number in AGK3 Catalog (I/61) Value = Sign(Z) * abs(Z)*105 + N*10 32- 35 I4 --- HR ? Number in Bright Star Catalog (V/50) 36- 40 I5 --- GCRV ? Number in General Catalog of Stellar Radial Velocities (Cat. III/21) 41- 45 I5 --- ADS ? Number in Aitken's Catalog of Double Stars 46- 47 I2 h RA1900h ? Right Ascension B1900 (hours) 48- 50 I3 0.1min RA1900dm ? Right Ascension B1900 (minutes) 51 A1 --- DE1900- ? Declination B1900 (sign) 52- 53 I2 deg DE1900d ? Declination B1900 (degrees) 54- 55 I2 arcmin DE1900m ? Declination B1900 (minutes) 56- 59 A4 --- Mult Components in case of multiple star system 60- 61 I2 h RAh ? Right Ascension B1950 (hours) 62- 63 I2 min RAm ? Right Ascension B1950 (minutes) 64- 66 I3 0.1s RAds ? Right Ascension B1950 (minutes) 67 A1 --- DE- ? Declination B1950 (sign) 68- 69 I2 deg DEd ? Declination B1950 (degrees) 70- 71 I2 arcmin DEm ? Declination B1950 (minutes) 72- 73 I2 arcsec DEs ? Declination B1950 (degrees) 74- 82 I9 --- DM ? Durchmusterung number from Zone and Number: Value = (Sign(Z) * abs(Z)*105 + N) 83- 84 I2 --- DMc ? Durchmusterung code (2) 85- 98 A14 --- Name1 Other name 99-109 A11 --- Name2 Other name 110 A1 --- Abt [A] when star belongs to the catalog by Abt and Biggs (Cat. III/4) 111 A1 --- FK4 [F] when star belongs to FK4 (I/15) 112 A1 --- MKJ [J] when star belongs to Jaschek's (III/18) 113 A1 --- MKK [K] when star belongs to Kennedy's (III/78) 114 A1 --- N30 [N] when star belongs to N30 (I/80) 115 A1 --- SAO [S] when star belongs to SAO (I/131) 116 A1 --- HL [H] when star belongs to uvbyβ catalog (1973A&AS...11..119L) 117 A1 --- YC [YC] when star belongs to Yale Zones (I/141) or Cape Catalog of Faint Stars (I/6) 118 A1 --- YX [P] Jenkins' Catalog of Parallaxes (I/60) 119 A1 --- CSI [*] when star belongs to CSI (see V/26) 120-125 F6.3 mag Vmag ? Johnson V magnitude 126 A1 --- u_Vmag [$] if V measurement uncertain 127-132 F6.3 mag B-V ? Johnson (B-V) color 133 A1 --- u_B-V [$] if (B-V) is uncertain 134-139 F6.3 mag U-B ? Johnson (U-B) color 140 A1 --- u_U-B [$] if (U-B) uncertain 141-144 F4.2 mag (U-B)c ? (U-B) in Cape system 145 A1 --- u_(U-B)c [$] if (U-B)c uncertain 146 A1 --- LC [dgc] Luminosity class in Wilson notation (d=dwarf, g=giant, c=supergiant) 147-159 A13 --- SpType Spectral type 160-162 I3 --- r_Vmag Reference of measurement
Note (1): the multiplicity code is: 21,22 = one HD star overlaps several stars 99 = one star overlaps 2 consecutive HD numbers 00 = otherwise Note (2): the Durchmusterung code is: 00 = star from Bonner Duchmusterung (BD, Cat. I/119, I/122) 01,02 = component of a BD star 20 = star from Cordoba Duchmusterung (CD, Cat. I/114) 21,22 = component of a CD star 40 = star from Cape Photographic Duchmusterung (CPD, Cat. I/108) 41,42 = component of a CPD star Note (3): Numbers below 21000 (range 1-20705) correspond to the stars existing in the printed version of the catalog; numbers >21000 were assigned to stars missing in the Blanco's publication.
History: Prepared at CDS.
(End) Francois Ochsenbein [CDS] 10-May-2004
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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