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J/A+AS/131/239      NGC 1750 + NGC 1758 BVR photometry (Galadi-Enriquez+ 1998)

The overlapping open clusters NGC 1750 and NGC 1758: II. BVR photographic photometry and proper motions Galadi-Enriquez D., Jordi C., Trullols E., Guibert J., Tian K.P., Zhao J.L. <Astron. Astrophys. Suppl. Ser. 131, 239 (1998)> =1998A&AS..131..239G (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open ; Photometry, UBVRI ; Proper motions Keywords: open clusters and associations: individual: NGC 1746 - open clusters and associations: individual: NGC 1750 - open clusters and associations: individual: NGC 1758 - methods: astrometry Description: Photographic astrometric and photometric catalogue. Table 6 contains (x,y) positions, (mu_x, mu_y) relative proper motions and BVR photographic photometry. Notes give cross-identifications with other catalogues. Table 11 contains equatorial positions (alpha, delta) and absolute proper motions (mu_alpha cos delta, mu_delta) in FK5 and ICRS reference systems. 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 table6.dat 101 51846 Photographic photometric and astrometric catalogue notes.dat 82 1713 List of 1713 stars cross-identified with other catalogues table11.dat 91 56730 FK5 and ICRS positions and proper motions
See also: J/A+A/333/471 : UBVRI photometry of NGC 1750 & NGC 1758 (Galadi-Enriquez+ 1998) J/A+A/337/125 : NGC 1750 & 1758 membership prob. (Galadi-Enriquez+, 1998) J/A+AS/131/89 : NGC 1750 + NGC 1758 proper motions (Tian+ 1998) I/149 : Fifth Fundamental Catalogue (FK5) Part I (Fricke+, 1988) I/175 : Fifth Fundamental Catalogue (FK5) - Extension (Fricke+ 1991) I/239 : The Hipparcos and Tycho Catalogues (ESA 1997) Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
3- 8 I6 --- GJTGTZ Identification number 10- 17 F8.4 mm xpos x coordinate (master plate ref. system) (1) 19- 26 F8.4 mm ypos y coordinate (master plate ref. system) (1) 28- 34 F7.2 mas/yr pmxpos ?=99.99 Relative proper motion along x (2) 36- 42 F7.2 mas/yr pmypos ?=99.99 Relative proper motion along y (2) 44- 49 F6.2 um e_xpos ?=99.99 Error of x coordinate (1) 51- 56 F6.2 um e_ypos ?=99.99 Error of y coordinate (1) 58- 63 F6.2 mas/yr e_pmxpos ?=99.99 Error of proper motion in x 65- 70 F6.2 mas/yr e_pmypos ?=99.99 Error of proper motion in y 72- 77 F6.2 mag Bmag ?=99.99 Johnson B photographic magnitude (3) 79- 84 F6.2 mag Vmag ?=99.99 Johnson V photographic magnitude (3) 86- 91 F6.2 mag Rmag ?=99.99 Cousins R photographic magnitude (3) 93- 94 I2 --- Nplate Number of plates for proper motion calculation 96-101 F6.1 yr delta(t) Maximum epoch difference with master plate for proper motion calculation
Note (1): Coordinates xpos and ypos include the ξ and η parameters (Eqs. 6 and 7) for stars with computed proper motions. The error of xpos and ypos coordinates are that of ξ and η parameters for stars with proper motions computed from more than three plates. An error of 99.99 microns is quoted for stars without proper motion, or with proper motion computed fom only two plates. Note (2): Proper motions of 99.99 mas/yr are quoted for stars without proper motion available. Proper motion errors of 99.99 mas/yr are assigned to stars without proper motion, or with proper motion computed from only two plates. Note (3): Stars having B and R values, but lacking V photometry, are assigned Vmag=99.99 mag. Stars lacking standard photographic photometry are assigned Bmag=99.99 mag, Vmag=99.99 mag and, if available, the R value from the master plate raw photometric photometry for cross- identifications (Sect. 3.3) is given as the best estimation of R magnitude. Bright stars lacking photometry due to saturation are assigned Bmag=Vmag=Rmag=0.00 mag. For the photometric errors, see Table 4 and Fig. 2.
Byte-by-byte Description of file: notes.dat
Bytes Format Units Label Explanations
1- 6 I6 --- GJTGTZ Identification number 7 A1 --- --- [,] 9- 82 A74 --- Names Other names, separated by a comma (1)
Note (1): The codes used are: TYC: Tycho Catalogue, ESA, 1997, ESA-SP 1200, Cat. I/239 HIP: Hipparcos Catalogue, ESA, 1997, ESA-SP 1200, Cat. I/239 PPM: Positions and Proper Motions Catalogue, Roeser and Bastian, 1989, Cat. I/146 and I/193 HD: Henry Draper Catalogue, Cat. III/135 BD: Bonner Durchmusterung, Cat. I/122 GJTR: Paper I, Galadi-Enriquez et al., Cat. J/A+A/333/471 SChM: Straizhys, Chernis and Meishtas, 1992BaltA...1..125S, [SCM92b] NNN in SIMBAD Cuf: Cuffey, 1937AnHar.105..403C
Byte-by-byte Description of file: table11.dat
Bytes Format Units Label Explanations
2- 7 I6 --- GJTGTZ Identification number 9- 10 I2 h RAJh FK5 right ascension, ep. 1994.9, eq. J2000 12- 13 I2 min RAJm FK5 right ascension, ep. 1994.9, eq. J2000 15- 20 F6.3 s RAJs FK5 right ascension, ep. 1994.9, eq. J2000 22 A1 --- DEJ- Sign of FK5 declination 23- 24 I2 deg DEJd FK5 declination, ep. 1994.9, eq. J2000 26- 27 I2 arcmin DEJm FK5 declination, ep. 1994.9, eq. J2000 29- 33 F5.2 arcsec DEJs FK5 declination, ep. 1994.9, eq. J2000 35- 41 F7.2 mas/yr pmRAJ ?=99.99 FK5 proper motion in alpha*cos(delta) 43- 49 F7.2 mas/yr pmDEJ ?=99.99 FK5 proper motion in delta 51- 52 I2 h RAh ICRS right ascension, ep. 1994.9 54- 55 I2 min RAm ICRS right ascension, ep. 1994.9 57- 62 F6.3 s RAs [0,60] ICRS right ascension, ep. 1994.9 64 A1 --- DE- Sign of ICRS declination 65- 66 I2 deg DEd ICRS declination, ep. 1994.9 68- 69 I2 arcmin DEm ICRS declination, ep. 1994.9 71- 75 F5.2 arcsec DEs [0,60] ICRS declination, ep. 1994.9 77- 83 F7.2 mas/yr pmRA ?=99.99 ICRS proper motion in alpha*cos(delta) 85- 91 F7.2 mas/yr pmDE ?=99.99 ICRS proper motion in delta
Acknowledgements: David Galadi-Enriquez History: * 10-Mar-1998: first version * 09-Sep-1998: table11 was corrected by the author (13 stars has a missing sign in the proper motion) References: Arias et al., The extragalactic reference system of the International Earth Rotation Service, ICRS. (1995A&A...303..604A)
(End) Patricia Bauer [CDS] 10-Mar-1998
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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