J/A+AS/127/471 NGC 6380 and Terzan 12 VI photometry (Ortolani+ 1998)
V, I photometry of the bulge metal-rich globular clusters:
NGC 6380 and Terzan 12
Ortolani S., Bica E., Barbuy B.
<Astron. Astrophys. Suppl. Ser. 127, 471 (1998)>
=1998A&AS..127..471O 1998A&AS..127..471O (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, globular ; Photometry, CCD
Keywords: globular clusters: individual: NGC 6380, Terzan 12 - HR diagram
Description:
We present V, I photometry of the bulge globular clusters NGC 6380 and
Terzan 12, using the ESO NTT telescope. For the first time
colour-magnitude diagrams are obtained for these clusters, allowing us
to derive reliable cluster parameters. From the colour-magnitude
diagram morphology both clusters result to be metal-rich. For NGC 6380
we estimate [Fe/H]~-0.5, a reddening of E(B-V)=1.07 and a distance of
d∼9.8 kpc. For Terzan 12 we obtain [Fe/H]~-0.5, E(B-V)=2.06 and
d∼3.4kpc.
Objects:
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RA (2000) DE Designation(s)
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17 34 28 -39 04.2 NGC 6380 = C 1731-390
18 12 16 -22 44.5 Terzan 12 = Terzan 11
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2 33 1190 V, I photometry of NGC 6380 (NTT data)
table3 33 670 V, I photometry of Terzan 12 (NTT data)
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Byte-by-byte Description of file: table2 table3
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq Sequence number
6- 12 F7.2 pix Xpos X pixel coordinate (1)
14- 20 F7.2 pix Ypos Y pixel coordinate (1)
22- 27 F6.3 mag Vmag V magnitude
29- 33 F5.3 mag V-I (V-I) colour index
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Note (1): 1 pix = 0.13", North is up and West is right (Figs. 1 and 2)
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Acknowledgements: B. Barbuy
(End) Francois Ochsenbein [CDS] 16-Jul-1997