J/A+AS/137/305 IC 348 proper motion catalogue (Scholz+, 1999)
IC 348 proper motion study from digitised Schmidt plates.
Scholz R.-D., Brunzendorf J., Ivanov G., Kharchenko N., Lasker B.,
Meusinger H., Preibisch T., Schilbach E., Zinnecker H.
<Astron. Astrophys. Suppl. Ser. 137, 305 (1999)>
=1999A&AS..137..305S 1999A&AS..137..305S
ADC_Keywords: Clusters, open ; Photometry ; Proper motions
Keywords: astrometry - methods: statistical -
open clusters and associations: individual: IC 348 - stars: kinematics
Description:
A new proper motion study for about 1400 stars with R<18mag in a one
square degree region around the young open cluster IC 348 based on
Schmidt plates is presented. With an overall accuracy of about 3mas/yr
(2.5mas/yr, respectively for all stars with R<17mag) we have obtained
membership probabilities dividing our sample into three groups:
foreground stars, cluster stars and background stars. This separation
is also supported by the proper motion distribution with respect to
the direction of the standard antapex and an increase of mean proper
motion cluster membership probabilities with smaller cluster radii.
240 stars of our sample have cluster membership probabilities larger
than 80%.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 109 1431 IC 348 catalogue of proper motions
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See also:
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
I/246 : The ACT Reference Catalog (Urban+ 1997)
I/146 : Positions and Proper Motions - North (Roeser+, 1988)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq Sequential number (1)
6- 7 I2 h RAh Right ascension (J2000, Epoch=1955.81) (2)
9- 10 I2 min RAm Right ascension (minutes) (2)
12- 16 F5.2 s RAs Right ascension (seconds) (2)
18 A1 --- DE- Declination sign (2)
19- 20 I2 deg DEd Declination (J2000, Epoch=1955.81) (2)
22- 23 I2 arcmin DEm Declination (arcminutes) (2)
25- 28 F4.1 arcsec DEs Declination (arcseconds) (2)
30- 36 F7.2 mas/yr pmRA Proper motion mu_alpha.cos(delta)
38- 44 F7.2 mas/yr pmDE Proper motion mu_delta
46- 50 F5.2 mas/yr e_pmRA rms uncertainty on pmRA
52- 56 F5.2 mas/yr e_pmDE rms uncertainty on pmDE
58- 62 F5.2 mag Umag ?=99.99 U magnitude from Tautenburg (1997.09)
64- 68 F5.2 mag B9168 ?=99.99 B magnitude from Tautenburg (1997.09)
70- 74 F5.2 mag B9177 ?=99.99 B magnitude from Tautenburg (1997.09)
76- 80 F5.2 mag Bj ?=99.99 Bj magnitude from Palomar (1987.75)
82- 86 F5.2 mag Vmag ?=99.99 V magnitude from Palomar (1982.80)
88- 92 F5.2 mag Emag ?=99.99 Red magnitude from Palomar (1955.81)
94- 98 F5.2 mag Rmag ?=99.99 R magnitude from Palomar (1992.75)
101-103 I3 % Pcl Membership probability of the cluster IC 348
106-108 I3 % Pdf Membership probability of the group of
distant field stars
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Note (1): Original number in a larger sample of all objects detected on the
reference plate.
Note (2): The coordinates are given for equinox J2000 but with the epoch of
the reference plate e1457 (i.e. 1955.81 corresponding to Emag).
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Acknowledgements:
Ralf Scholz
(End) Patricia Bauer [CDS] 16-Aug-1999