Access to Astronomical Catalogues

← Click to display the menu
J/AJ/122/1383           DIRECT BVI photometry in M31          (Mochejska+, 2001)

The DIRECT project: catalogs of stellar objects in nearby galaxies. II. Eastern arm and NGC 206 in M31. Mochejska B.J., Kaluzny J., Stanek K.Z., Sasselov D.D. <Astron. J. 122, 1383 (2001)> =2001AJ....122.1383M
ADC_Keywords: Galaxies, nearby ; Photometry Mission_Name: Keywords: galaxies: individual (M31) - galaxies: stellar content Abstract: DIRECT is a project to directly obtain the distances to two important galaxies in the cosmological distance ladder, M31 and M33, using detached eclipsing binaries and Cepheids. As part of our search for these variables, we have obtained photometry and positions for thousands of stellar objects within the monitored fields, covering an area of 557.8arcmin2. Here we present the equatorial coordinates and BVI photometry for 26,712 stars in the M31 galaxy, along the eastern arm and in the vicinity of the star-forming region NGC 206. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1a.dat 88 4276 Stellar objects in field M31A table1b.dat 88 3738 Stellar objects in field M31B table1c.dat 88 11809 Stellar objects in field M31C table1d.dat 88 2549 Stellar objects in field M31D table1e.dat 88 4330 Stellar objects in field M31F
See also: J/AJ/115/1016 : M31B eclipsing binaries and Cepheids (Kaluzny+ 1998) J/AJ/115/1894 : M31A eclipsing binaries and Cepheids (Stanek+ 1998) J/AJ/117/2810 : M31C eclipsing binaries and Cepheids (Stanek+, 1999) J/AJ/118/346 : M31D eclipsing binaries and Cepheids (Kaluzny+ 1999) J/AJ/118/2211 : M31F eclipsing binaries and Cepheids (Mochejska+ 1999) Byte-by-byte Description of file: table1?.dat
Bytes Format Units Label Explanations
1- 21 A21 --- D31 Star name (D31JHHMMSS.s+DDMMSS.s) 23- 24 I2 h RAh Right ascension (J2000) 26- 27 I2 min RAm Right ascension (J2000) 29- 33 F5.2 s RAs Right ascension (J2000) 35 A1 --- DE- Declination sign (J2000) 36- 37 I2 deg DEd Declination (J2000) 39- 40 I2 arcmin DEm Declination (J2000) 42- 46 F5.2 arcsec DEs Declination (J2000) 48- 52 F5.2 mag Vmag Johnson V band magnitude 54- 58 F5.2 mag Imag ? Cousins I band magnitude 60- 64 F5.2 mag Bmag ? Johnson B band magnitude 66- 70 F5.2 mag e_Vmag Standard error in the Johnson V magnitude 72- 76 F5.2 mag e_Imag ? Standard error in the Cousins I magnitude 78- 82 F5.2 mag e_Bmag ? Standard error in the Johnson B magnitude 84- 88 F5.2 --- Js ? Stetson variability index JS (Stetson, 1996PASP..108..851S)
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 14-Jan-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

catalogue service