ADC/CDS Standard Document for Catalog:/journal_tables/A+A/333/471/
ADC/CDS Standard Document for Catalog:| 1. Use the ADC Data Viewer Suite to visualize the data. |
|
| 2. Get the data files via anonymous FTP. (See Note.) |
|
J/A+A/333/471 UBVRI photometry of NGC 1750 and NGC 1758 (Galadi-Enriquez+ 1998)
================================================================================
The overlapping open clusters NGC 1750 and NGC 1758. I. UBVRI-CCD photometry
Galadi-Enriquez D., Jordi C., Trullols E., Ribas I.
<Astron. Astrophys. 333, 471 (1998)>
=1998A&A...333..471G (SIMBAD/NED BibCode)
================================================================================
ADC_Keywords: Clusters, open ; Photometry, UBVRI
Keywords: open clusters and associations: individual: NGC 1746; NGC 1750;
NGC 1758 - stars: early-type
Abstract:
The existence and relationship of the possible clusters NGC 1746,
NGC 1750 and NGC 1758 has been a matter of discussion during the last
decades. This star field is close to the galactic anticenter and lies
in the direction of the Taurus dark cloud complex. As part of a
comprehensive astrometric and photometric analysis of this zone, we
present a brief historical introduction together with deep UBVRI-CCD
photometry of the area. The presence of at least one cluster can be
deduced from these data. This object has a position and apparent size
compatible with those previously quoted for NGC 1750 and NGC 1758. It
is not possible to distinguish the single or double nature of the
cluster on the sole basis of our photometry and the spatial
distribution of the stars. No photometric evidence was found for
NGC 1746.
Objects:
----------------------------------------------------------
RA (2000) DE Designation(s)
----------------------------------------------------------
05 03.6 +23 49 NGC 1746 = C 0500+237
05 03.9 +23 39 NGC 1750 = C 0500+235
05 04.4 +23 47 NGC 1758 = C 0501+237
----------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table5.dat 113 3224 UBVRI photometry for the 3224 program stars
crossid.dat 45 87 Cross-identifications
--------------------------------------------------------------------------------
See also:
J/A+AS/131/89 : NGC 1750 & NGC 1758 proper motions (Tian+ 1998)
J/A+AS/131/239 : NGC 1750 & NGC 1758 BVR photometry (Galadi-Enriquez+ 1998)
J/A+A/337/125 : NGC 1750 & 1758 membership prob. (Galadi-Enriquez+, 1998)
Byte-by-byte Description of file: table5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- GJTGTZ [1/3229] Identification (1)
6- 7 I2 h RAh Right ascension (J2000.0)
9- 10 I2 min RAm Right ascension (J2000.0)
12- 16 F5.2 s RAs Right ascension (J2000.0)
18 A1 --- DE- Declination sign
19- 20 I2 deg DEd Declination (J2000.0)
22- 23 I2 arcmin DEm Declination (J2000.0)
25- 28 F4.1 arcsec DEs Declination (J2000.0)
30- 35 F6.3 mag Vmag V magnitude
37- 41 F5.3 mag e_Vmag rms uncertainty on Vmag
43- 48 F6.3 mag B-V ? B-V colour index
50- 54 F5.3 mag e_B-V ? rms uncertainty on B-V
56- 61 F6.3 mag U-B ? U-B colour index
63- 67 F5.3 mag e_U-B ? rms uncertainty on U-B
69- 74 F6.3 mag V-R ? V-R colour index
76- 80 F5.3 mag e_V-R ? rms uncertainty on V-R
82- 87 F6.3 mag V-I ? V-I colour index
89- 93 F5.3 mag e_V-I ? rms uncertainty on V-I
95-103 F9.3 pix xpos x coordinate (2)
105-113 F9.3 pix ypos y coordinate (2)
--------------------------------------------------------------------------------
Note (1): The stars numbers 1996, 1997, 2372, 3061 and 3162 were found to have
anomalous photometric data and, thus, were eliminated from
the catalogue. The number of entries is 3224, but the maximum
identification number is 3229.
Note (2): There is a good alignment of +x coordinate with +alpha and
of +y with +delta
--------------------------------------------------------------------------------
Byte-by-byte Description of file: crossid.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- GJTGTZ Identification number
6- 7 I2 --- SCM92b ? Straizys et al. (1992BaltA...1..125S) number
9- 12 A4 --- CUF Cuffey (1937AnHar.105..403C) number
14- 18 I5 --- PPM ? PPM (Cat. <I/146>) number
20- 28 A9 --- BD BD (Cat. <I/122>) name
30- 35 I6 --- HD ? HD (Cat. <III/135>) number
37- 45 A9 --- TYC Tycho Catalogue (Cat. <I/239>) number
--------------------------------------------------------------------------------
Acknowledgements: Carme Jordi <carme@pchpc7.am.ub.es>
================================================================================
(End) Patricia Bauer [CDS] 02-Feb-1998