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J/A+A/381/464       Proper motions and membership in NGC 2548     (Wu+, 2002)

Determination of proper motions and membership of the open star cluster NGC 2548 Wu Z.Y., Tian K.P., Balaguer-Nunez L., Jordi C., Zhao J.L., Guibert J. <Astron. Astrophys. 381, 464 (2002)> =2002A&A...381..464W
ADC_Keywords: Clusters, open ; Proper motions Keywords: Galaxy: open clusters and associations: individual: NGC 2548 - astrometry - Galaxy: kinematics and dynamics Description: Absolute proper motions, their corresponding errors and membership probabilities of 501 stars in the open cluster NGC 2548 region are given. 265 stars from Tycho-2 Catalogue (Cat. I/259) are used as the reference frame. Only 8 stars were found in this region from the Hipparcos Catalogue, and their respective cross-identification are given as notes. The material used consists in 10 plates taken at the Zo-Se station of Shanghai Observatory between 1916 and 1998. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table5.dat 101 501 Relative proper motions and membership probabilities of 501 stars of the star open clusters NGC 2548
See also: I/259 : The Tycho-2 Catalogue (Hog+ 2000) Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Sequential identification number 6- 7 I2 h RAh Right ascension (J2000) 9- 10 I2 min RAm Right ascension (J2000) 12- 18 F7.4 s RAs Right ascension (J2000) 21 A1 --- DE- Declination sign 22 I1 deg DEd Declination (J2000) 24- 25 I2 arcmin DEm Declination (J2000) 27- 32 F6.3 arcsec DEs Declination (J2000) 34- 41 F8.3 mas/yr pmRA Proper motion in alpha 42- 47 F6.3 mas/yr e_pmRA Error in pmRA 49- 56 F8.3 mas/yr pmDE Proper motion in delta 58- 63 F6.3 mas/yr e_pmDE Error in pmDE 66- 69 F4.2 --- Pmemb Probability NGC 2548 cluster star membership 71- 75 F5.2 mag Pmag Instrumental magnitude given by SExtractor 77- 78 I2 --- Nplates Number of plates used 80- 90 A11 --- TYC2 Tycho-2 (Cat. I/259) identification number 92- 96 I5 --- HIP ? Hipparcos (I/239) identification number 98-101 I4 --- BDA ? BDA (http://obswww.unige.ch/webda) catalogues identification number
Acknowledgements: Lola Balaguer-Nunez
(End) L. Balaguer-Nunnez [Universitat de Barcelona] 24-Oct-2001
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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