Access to Astronomical Catalogues

Search catalogue
in preparation
catalog without ftp or VizieR link
J/AJ/107/2101       Berkeley 93 RVB photometry (Saure+ 1994)

Berkeley 93: a distant star cluster nestled in a dust cloud Saurer W., Seeberger R., Weinberger R., Ziener R. <Astron. J. 107, 2101 (1994)> =1994AJ....107.2101S
ADC_Keywords: Photometry, CCD ; Clusters, open Abstract: While performing galactic and extragalactic studies near the galactic plane in Cepheus. CCD frames in B, V, and R were taken of the faint (V≥16m), previously unstudied open star cluster Berkeley 93 (Be 93). Our results indicate that this object is the core of a larger aggregate, is slightly evolved, strongly reddened [E(B-V)∼1.5], and shows a pronounced variable reddening that is probably due to the location of the cluster inside (near the border) a dust cloud. By far the reddest, and obviously most evolved star is a (variable) carbon star that-because of its reddening and location-appears to be a cluster member. We present arguments in favour of a large distance of more than 5kpc for Be 93 which possibly belongs to the galactic warp. As an addendum, we present six star concentrations discovered on the POSS or ESO/SERC atlas that might represent hitherto uncatalogued open star clusters of "Berkeley type." Objects: Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 21 56.2 +63 56 Berkeley 93 = C 2154+637 ---------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 96 216 Photometry of stars in Berkeley 93
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Star sequential number 5- 9 F5.2 mag Rmag R magnitude 11- 15 F5.2 mag Vmag V magnitude 17- 21 F5.2 mag Bmag ? B magnitude 23- 26 F4.2 mag V-R V-R colour index 28- 31 F4.2 mag B-V ? B-V colour index 33 A1 --- Member [C] C: cluster star; blank: field star 35- 36 I2 h RAh Right Ascension J2000 (hours) (1) 38- 39 I2 min RAm Right Ascension J2000 (minutes) (1) 41- 45 F5.2 s RAs Right Ascension J2000 (seconds) (1) 47 A1 --- DE- Declination J2000 (sign) (1) 48- 49 I2 deg DEd Declination J2000 (degrees) (1) 51- 52 I2 arcmin DEm Declination J2000 (minutes) (1) 54- 57 F4.1 arcsec DEs Declination J2000 (seconds) (1) 59 A1 --- rPos [bgMs] Source of the position (2) 62- 96 A35 --- Com Comments from B. Skiff (1)
Note (1): Columns not in the original paper, added by B. Skiff in July 2003 Note (2): the origin of the position is as follows: b USNO-B1.0 (2003AJ....125..984M, Cat. I/284) g GSC-2.2 (2001GSC2..C......0S, Cat. I/271) M 2MASS (Cat. II/246) s SkyView estimate (±2")
History: * 25-Mar-1997: Prepared via OCR at CDS. * 29-Jul-2003: Positions added (B. Skiff, Lowell Observatory)
(End) James Marcout, Patricia Bauer [CDS]; Brian skiff [Lowell] 29-Jul-2003
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

catalogue service

© Unistra/CNRS