V/126 MEGA-H proper motion catalog (Kharchenko, 2004)
Compiled catalogue of stellar proper motions in the Hipparcos system in the
MEGA program areas.
Kharchenko N.V.
<Kinematika Fiz. Nebesn. Tel., 20, 366 (2004)>
=2004KFNT...20..366K 2004KFNT...20..366K
ADC_Keywords: Combined data ; Positional data ; Proper motions ;
Photometry, UBV ; Cross identifications
Description:
The catalogue MEGA-H is a result of a merging of star lists from the
catalogue of stellar proper motions with respect to galaxies in 47
selected areas near the Main Meridional Section of the Galaxy (MEGA-G)
(Kharchenko 1987) and from All-sky Compiled Catalogue of 2.5 Million
Stars (ASCC-2.5) (Cat. I/280). Proper motions from the catalogue
MEGA-G were reduced to the Hipparcos system by means of common with
the ASCC-2.5 stars. The compiled proper motions in the Hipparcos
system and their standard errors were computed as the weighted means.
Equatorial coordinates are reduced to the equinox J2000 and epoch
1991.25. The catalogue MEGA-H contains 18169 stars. Stars are sorted
in right ascension J2000 order.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 119 18169 Catalogue MEGA-H
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See also:
I/280 : All-sky Compiled Catalogue of 2.5 million stars (Kharchenko 2001)
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 12 F12.9 h RAhour Right Ascension J2000.0, epoch 1991.25 (1)
14- 25 F12.8 deg DEdeg Declination J2000.0, epoch 1991.25 (1)
26- 33 F8.2 mas/yr pmRA Proper motion in RA*cos(DE) (2)
34- 41 F8.2 mas/yr pmDE Proper motion in DE (2)
43- 47 F5.2 mas/yr e_pm Standard error in pm
49- 54 F6.3 mag Bmag ?=99.999 B magnitude in Johnson system (1)
56- 61 F6.3 mag Vmag ?=99.999 V magnitude in Johnson system (1)
63- 67 F5.3 mag e_Bmag Standard error on stellar magnitude (1)
69- 80 A12 --- SpType ? Spectral type in MK or HD system
82- 87 I6 --- HIP ?=0 Hipparcos (I/239) number
89- 94 I6 --- HD ?=0 HD (III/135) number
96-103 I8 --- DM ?=0 DM number (3)
105-111 I7 --- ASCC ?=0 ASCC-2.5 (I/280) number
113-115 I3 --- AREA MEGA program area number (4)
117-119 I3 --- MEGA ?=0 Star number within MEGA area (4)
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Note (1): Data are given in accordance with the priority: ASCC-2.5, MEGA-H
Note (2): Data are reduced to the Hipparcos system
Note (3): DM = Zone sign and abs(Zone)*100000 + running number within this Zone
Note (4): Star number in MEGA-G corresponds to 1000000 + AREA*1000 + MEGA
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Acknowledgements: Nina V. Kharchenko, nkhar(at)mao.kiev.ua,
nkhar(at)ari.uni-heidelberg.de
References:
Kharchenko, 1987KFNT....3b...7K 1987KFNT....3b...7K, On the general catalog of stellar
proper motions with respect to galaxies in the areas of the Galaxy
main meridional section (MEGA-G)
(End) Patricia Vannier [CDS] 03-Nov-2005