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J/A+A/385/471       UBVI photometry of NGC 7036 and NGC 7772    (Carraro+, 2002)

Photometry of dissolving star cluster candidates. The cases of NGC 7036 and NGC 7772. Carraro G. <Astron. Astrophys. 385, 471 (2002)> =2002A&A...385..471C
ADC_Keywords: Clusters, open ; Photometry, UBVRI ; Photometry, CCD Keywords: open clusters and associations: individual: NGC 7036, NGC 7772 - open clusters and associations: general Abstract: We present CCD UBVI observations obtained in the field of the two previously unstudied dissolving open cluster candidates NGC 7036 and NGC 7772. Our analysis suggests that both the objects are Open Cluster Remnants (OCR). NGC 7036 is an open cluster remnant with a core radius of about 3-4 arcmin. We derive for the first time estimates of its fundamental parameters. We identify 17 likely members that define a group of stars at 1kpc from the Sun, with a low reddening E(B-V)∼0.1, and with an age of about 3-4Gyr. As for NGC 7772, we identify 14 likely members, that define a group of stars with a very low reddening (E(B-V)∼0.03), are 1.5Gyr old and are located about 1.5kpc from the Sun. Objects: -------------------------------------------------------- RA (2000) DE Designation GLON GLAT -------------------------------------------------------- 21 10 02.0 +15 31 06 NGC 7036 64.55 -21.44 23 51 46.0 +16 14 48 NGC 7772 102.74 -44.27 -------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file ngc7036.dat 85 331 Photometry of NGC 7036 ngc7772.dat 85 137 Photometry of NGC 7772
Byte-by-byte Description of file: ngc7036.dat ngc7772.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Sequential number 5- 12 F8.3 pix Xpos X coordinates (1) 14- 21 F8.3 pix Ypos Y coordinates (1) 23- 29 F7.4 mag Vmag ?=99.9999 V band magnitude 31- 37 F7.4 mag e_Vmag ?=99.9990 error in Vmag 39- 45 F7.4 mag B-V ?=99.9999 (B-V) color index 47- 53 F7.4 mag e_B-V ?=99.9990 error in (B-V) 55- 61 F7.4 mag U-B ?=99.9999 (U-B) color index 63- 69 F7.4 mag e_U-B ?=99.9990 error in (U-B) 71- 77 F7.4 mag V-I ?=99.9999 (V-I) color index 79- 85 F7.4 mag e_V-I ?=99.9990 error in (V-I)
Note (1): The center is in (500.0,500.0) pixel. The scale is 0.473"/pix. East is toward positive X, South toward positive Y.
Acknowledgements: Giovanni Carraro
(End) Patricia Bauer [CDS] 26-Mar-2002
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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