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J/A+A/426/827  ubvyHβ photometry in NGC 1817 / 1807  (Balaguer-Nunez+ 2004)

uvby-Hβ CCD Photometry of NGC 1817 and NGC 1807. Balaguer-Nunez L., Jordi C., Galadi-Enriquez D., Masana E. <Astron. Astrophys. 426, 827 (2004)> =2004A&A...426..827B (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open ; Photometry, CCD ; Photometry, uvby, beta Keywords: Galaxy: open clusters and associations: individual: NGC 1817 - Galaxy: open clusters and associations: individual: NGC 1807 - techniques: photometry - methods: observational - methods: data analysis Description: The catalogue of accurate uvby-Hβ and J2000 coordinates for 7842 stars in an area of 65'x40' around NGC 1817. We mark the selection of probable members of NGC 1817, combining this photometric study with the previous astrometric analysis (Balaguer-Nunez et al. 2004, Cat. J/A+A/426/819). Also given is the cross-identification of stars in common with the astrometry (Balaguer-Nunez et al. 2004, Cat. J/A+A/426/819), WEBDA (http://obswww.unige.ch/WEBDA), Hipparcos (ESA, 1997, Cat. I/239), Tycho-2 (Hog et al., 2000, Cat. I/250) and USNO-A2 (Monet et al., 1998, Cat. I/252) catalogues. Objects: ----------------------------------------- RA (2000) DE Designation(s) ----------------------------------------- 05 12 06 +16 42.0 NGC 1817 05 10 42 +16 32.0 NGC 1807 ----------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 136 7842 Stroemgren photometry of stars in NGC 1817 area table5.dat 73 7842 Cross-identification of stars
See also: J/A+A/426/819 : NGC 1817 proper motions and membership (Balaguer-Nunez+, 2004) J/A+AS/133/387 : NGC 1817 & NGC 1807 proper motions (Balaguer-Nunnez+ 1998) J/A+A/399/105 : NGC 1817 red giants radial velocities (Mermilliod+, 2003) Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
2- 5 I4 --- ID Sequential identification number 7- 8 I2 h RAh Right ascension (J2000) 10- 11 I2 min RAm Right ascension (J2000) 13- 18 F6.3 s RAs Right ascension (J2000) 19 A1 --- DE- Declination sign (J2000) 20- 21 I2 deg DEd Declination (J2000) 23- 24 I2 arcmin DEm Declination (J2000) 26- 30 F5.2 arcsec DEs Declination (J2000) 31- 39 F9.3 arcmin xpos x-frame coordinate in arcmin 40- 48 F9.3 arcmin ypos y-frame coordinate in arcmin 49- 57 F9.3 mag b-y ?=99.99 b-y color 58- 65 F8.4 mag e_b-y ?=99.99 Error in b-y 66- 74 F9.3 mag Vmag ?=99.99 Johnson V magnitude 75- 82 F8.4 mag e_Vmag ?=99.99 Error in Vmag 83- 91 F9.3 mag m1 ?=99.99 m1 = (u-b)-(b-y) color index 92- 99 F8.4 mag e_m1 ?=99.99 Error in m1 100-108 F9.3 mag c1 ?=99.99 c1 = (u-v)-(v-b) color index 109-116 F8.4 mag e_c1 ?=99.99 Error in c1 117-125 F9.3 mag Hb ?=99.99 Stroemgren Hβ index 126-133 F8.4 mag e_Hb ?=99.99 Error in Hbeta 134-136 A3 --- Mem Membership label (M: member, NM: non-member)
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
2- 5 I4 --- ID Sequential identification number 7- 8 I2 h RAh Right ascension (J2000) 10- 11 I2 min RAm Right ascension (J2000) 13- 18 F6.3 s RAs Right ascension (J2000) 19 A1 --- DE- Declination sign (J2000) 20- 21 I2 deg DEd Declination (J2000) 23- 24 I2 arcmin DEm Declination (J2000) 26- 30 F5.2 arcsec DEs Declination (J2000) 31- 35 I5 --- BN04 Balaguer-Nunez et al., 2004, Cat. J/A+A/426/819 identification number 36- 40 I5 --- Webda WEBDA (http://obswww.unige.ch/WEBDA) identification number 41- 48 I8 --- HIP Hipparcos (I/239) identification number 49- 53 I5 --- TYC1 TYC1 (I/250) identification number 54- 58 I5 --- TYC2 TYC2 (I/250) identification number 59- 73 A15 --- USNO-A2 USNO-A2 (I/252) identification number
Acknowledgements: Lola Balaguer-Nunnez
(End) L. Balaguer-Nunnez [Universitat de Barcelona] 23-Jul-2004
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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