J/A+AS/102/397 Colour magnitude diagram of M13 (Guarnieri+ 1993)
Colour magnitude diagram for the globular cluster M13
Guarnieri M. D., Bragaglia A., Fusi Pecci F.
<Astron. Astrophys. Suppl. Ser. 102, 397 (1993)>
=1993A&AS..102..397G 1993A&AS..102..397G
ADC_Keywords: Clusters, globular; Photometry, CCD; Colors
Keywords: clusters: globulars: M13 - stars: evolution -
stars: colour magnitude diagram - photometry: CCD
Description:
Two overlapping regions of M13 were observed on April 24, 1989 at the
Loiano Observatory with a CDCD camera. A Colour-Magnitude diagram down
to the main sequence was derived, as a preliminary search for the blue
Horizontal Branch stars in this cluster.
Objects:
----------------------------------------------------------
RA (2000) DE Designation(s)
----------------------------------------------------------
16 41 41.4 +36 27 37 M 13 = NGC 6205 = C 1639+365
----------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 31 3532 *B, B-V and positions for 3532 stars in M13
--------------------------------------------------------------------------------
Note on table1.dat: the table contains B and B-V values, not V and B-V
as announced in the paper.
--------------------------------------------------------------------------------
See also:
J/AJ/113/669 : Stars in M13 core (Cohen+ 1997)
J/AJ/120/1364 : Abundances in M3 and M13 (Cavallo+, 2000)
J/AJ/122/3219 : M3 and M13 CCD BV photometry (Rey+ 2001)
Byte-per-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- Num *Identification Number
7- 11 F5.2 mag Bmag B magnitude (not Vmag, si "History" section)
13- 17 F5.2 mag B-V B-V colour
19- 24 F6.2 pix X X position (increases to West, 0.5"/pix)
26- 31 F6.2 pix Y Y position (increases to South, 0.5"/pix)
--------------------------------------------------------------------------------
Note on Num: the star appears as Cl* NGC 6205 GBF nnnnn in Simbad
--------------------------------------------------------------------------------
History:
* 17-Jun-1999: Thanks to a note from Wayne Osborn, and a confirmation
by Angela Bragaglia, the magnitude listed was relabelled to Bmag,
instead of Vmag.
(End) Patricia Bauer [CDS] 14-Oct-1993