J/A+AS/123/455 LH 47 UVBRI photometry (Will+ 1997)
A photometric and spectroscopic study of the association LH 47 in
the superbubble N44 in the LMC
Will J.-M., Bomans D.J., Dieball A.
<Astron. Astrophys. Suppl. Ser. 123, 455 (1997)>
=1997A&AS..123..455W 1997A&AS..123..455W (SIMBAD/NED BibCode)
ADC_Keywords: Associations, stellar ; Photometry, UBVRI ; Cross identifications
Keywords: stars: early-type - Hertzsprung-Russell (HR) diagram -
stars: luminosity function, mass function -
open clusters and associations: individual: LH47 - Magellanic Clouds
Description:
Table 3 lists the final photometric data of our observations. The
UBVRI observations were done with the 1.54m Danish telescope at ESO on
October 3rd and 4th, 1992. The CCD was ESO#28, a TEK 1024x1024 with a
pixel size of 24mue corresponding to 0.377" per pixel. The total
field of view is 6.4'x6.4'. A standard reduction was done with MIDAS
and IRAF, the photometry was performed with DAOPHOT within IRAF. The
images of Oct 4th have been calibrated using the calibration field
around PG 0231+051 (Landolt 1992, Cat. II/183). The images of Oct
3rd have then been adopted to the system of Oct 4th. The final Table 3
lists 4613 stars with V and B-V information. In addition U-B is
available for 1159 of these stars, V-R for 3519 and V-I for 2854
stars.
Table 4 gives those stars from our field of view which are present in
the MACS (Magellanic Catalogue of Stars; Tucholke et al. 1996,
Cat. I/221). The table contains the MACS Id., our x and y position
and our UBV photometry, and right ascension and declination from the
MACS. These stars may serve to calculate an exact position for every
star from Table 3 or to define a coordinate grid for comparison with
other observations, such as radio or X-ray data.
Objects:
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RA (2000) DE Designation(s)
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05 21 59 -67 57.1 LH 47 = NGC 1935 = HD 35814
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See also:
I/221 : The Magellanic Catalogue of Stars - MACS (Tucholke+ 1996)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3 85 4613 UBVRI photometry
table4 81 51 *Cross identifications
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Note to table4: Cross identifications of our programme stars with the MACS
(Magellanic Catalogue of Stars; Tucholke et al. 1996 de Boer et al. 1995,
Cat. I/221). There are 51 stars in our field of view which are present
in the MACS. They may serve as an astrometric reference.
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Byte-by-byte Description of file: table3
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Bytes Format Units Label Explanations
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1- 8 F8.3 pix Xpos X position (1)
10- 17 F8.3 pix Ypos Y position (1)
19- 24 F6.3 mag Vmag V magnitude
26- 31 F6.3 mag e_Vmag rms uncertainty on Vmag
33- 38 F6.3 mag B-V B-V color index
40- 45 F6.3 mag e_B-V rms uncertainty on B-V
47- 52 F6.3 mag U-B ? U-B color index
54- 58 F5.3 mag e_U-B ? rms uncertainty on U-B
60- 65 F6.3 mag V-R ? V-R color index
67- 72 F6.3 mag e_V-R ? rms uncertainty on V-R
74- 79 F6.3 mag V-I ? V-I color index
81- 85 F5.3 mag e_V-I ? rms uncertainty on V-I
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Note (1): X and Y starting in the lower left corner. The orientation of the
frames is North up and East to the left. 1 pix = 0.377".
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Byte-by-byte Description of file: table4
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Bytes Format Units Label Explanations
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1- 13 A13 --- MACS MACS (Cat. I/221) identification number
15- 22 F8.3 pix Xpos X position
24- 31 F8.3 pix Ypos Y position
33- 38 F6.3 mag Vmag V magnitude
40- 45 F6.3 mag B-V B-V color index
47- 52 F6.3 mag U-B U-B color index
54- 55 I2 h RAh Right ascension (J2000)
57- 58 I2 min RAm Right ascension (J2000)
60- 65 F6.3 s RAs Right ascension (J2000)
67 A1 --- DE- Declination sign
68- 69 I2 deg DEd Declination (J2000)
71- 72 I2 arcmin DEm Declination (J2000)
74- 79 F6.3 arcsec DEs Declination (J2000)
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Acknowledgements: Jean-Marie Will
(End) Patricia Bauer [CDS] 07-Jan-1997