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II/194A     Photometric study of IC 4665  (McCarthy+ 1969)

A photometric study of the open cluster IC 4665 McCARTHY M.F.S.J., O'SULLIVAN S.S.J. <Ricerche Astron., 7, 483-498 (1969)> =1969RA......7..483M (SIMBAD/NED RefCode)
ADC_Keywords: Clusters, open ; Photographic catalog Summary: Photographic observations of the open cluster IC 4665 made on blue and yellow sensitive plates with the Vatican 40 cm refractor are presented and discussed. Apparent magnitudes were determined for 200 stars by means of a program of photometric reduction designed by BERTIAU. The mean internal errors in the final blue and yellow magnitudes average about 0.02 mag. All stars selected for measurement of proper motions by VASILEVSKIS on long base-line Allegheny plates have been observed here. The forty stars which VASILEVSKIS' proper motion measures have shown to be probable members constitute a normal main sequence from V = 7 to V = 13.5, followed by a gap of 0.2 to 0.3 mag, and a group of 10 stars in the subgiant domain. The reality of this gap and the membership characteristics of the stars in the subgiant region of the C - M diagram are discussed. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1 67 29 Standard stars: photoelectric and photographic data compared table2 60 200 General catalogue of stars observed in IC 4665 (Merging of tables 2,3,4)
Byte-by-byte Description of file: table1
Bytes Format Units Label Explanations
1- 3 A3 --- Vno Number on the plate (Vasilevskis) 8- 10 I3 --- Kno [1/125]? Number in Kopff 17- 18 I2 --- Ano [1/31]? Number in Alcaino 25- 31 A7 --- BD Bonner Durchmustering identification 35- 39 F5.2 mag Vpe V photoelectric 41- 45 F5.2 mag (B-V)pe (B-V) color photoelectric 49- 53 F5.2 mag Vpg V photographic 56- 60 F5.2 mag (B-V)pg (B-V) photographic 65- 67 A3 --- Notes Notes as follows: 1 = pe data from Hogg & Kron, AJ 60, 365 2 = pe data from Johnson ApJ 119, 181 and ApJ 126, 121 3 = pe data (this paper) 4 = pe data from Coyne (priv. comm.) 5 = not used as yellow standard
Byte-by-byte Description of file: table2
Bytes Format Units Label Explanations
1- 3 A3 --- Vno Number on the plate (Vasilevskis) 5- 7 I3 --- Kno [1/125]? Number in Kopff 11- 12 I2 --- Ano [1/31]? Number in Alcaino 16- 22 A7 --- BD Bonner Durchmustering identification 25- 29 F5.2 mag B [8/15]? Photographic B 31- 35 F5.2 mag V [6.8/14]? photographic V 37- 41 F5.2 mag (B-V) []? color 43- 46 F4.3 mag e_B []? mean error on B 48- 51 F4.3 mag e_V []? mean error on V 54 I1 --- Class [1/3]? 1=probable member, 2=Possible member, 3=Less possible member 58- 60 A3 --- Notes Notes as follows: #1 = Less than 6 plates in B determination #2 = Less than 6 plates in V determination #3 = Identification from Kopff, Mitt. Hamburger Sternw. 8, No 52 #4 = Suspected variable #6 = Photoelectric data from Hogg & Kron, AJ 60, 365
Historical Notes: * 02-Jun-1994: Keypunched at CDS, Strasbourg. Tables 2, 3 and 4 merged into single file table2. * 13-Jun-1995: errors corrected in table2 at CDS Star 093 Ano is 25 (instead of 26) Star 090 is BD+5 3483 (instead of BD+5 3843) Star 105 Ano is 24 (instead of 4) Star 033 Kno is 37 (instead of 38)
(End) M.-J. Wagner, James Marcout, Francois Ochsenbein [CDS] 12-Jun-1995
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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