I/193 Positions and Proper Motions - South (Bastian+ 1993)
Catalogue of Positions and Proper Motions - South
Bastian U., Roeser S.
<Astronomisches Rechen-Institut, Heidelberg (1993)>
=1994yCat.1193....0B 1994yCat.1193....0B
ADC_Keywords: Positional data ; Proper motions
Description:
PPM South gives positions and proper motions of 197179 stars south of
about -2.5 degrees declination. Its main purpose is to provide a
convenient, dense and accurate net of astrometric reference stars on
the southern celestial hemisphere. This net is designed to represent
as closely as possible the new IAU (1976) coordinate system on the
sky, as defined by the FK5 star catalogue (Fricke et al., 1988). In
other words, it is a representation of this system at higher star
densities and fainter magnitudes. PPM South is the southern-hemisphere
complement to the PPM Star Catalogue (Roeser and Bastian, 1991), which
covers the northern hemisphere, plus a strip between the equator and
about -2.5 degrees declination. At the border line a continuous
transition between the northern and southern part was tailored in such
a way that no overlap, nor gaps, nor double entries occurred.
See file "desc.txt" for complete explanations provided by the authors.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
desc.txt 80 984 Authors' description
ppm2.dat 131 197179 Catalogue as an easily readable table
ppma2.dat 138 197179 Catalogue in format of old PPM North
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Byte-by-byte Description of file: ppm2.dat
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Bytes Format Units Label Explanations
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2- 7 I6 --- PPM *[181732/378910]+ Designation of the star
10- 18 A9 --- DM *Durchmusterung, BD or CD
20- 23 F4.1 mag Mag *Magnitude, Visual if Flag5 is 'V'
25- 26 A2 --- Sp *Spectral type
28- 29 I2 h RAh Right Ascension for the Equinox=J2000.0 and
Epoch=J2000.0, on the system of FK5
31- 32 I2 min RAm Right Ascension J2000 (minutes)
34- 39 F6.3 s RAs Right Ascension J2000 (seconds)
42 A1 --- DE- Declination J2000 (sign)
43- 44 I2 deg DEd Declination for the equinox and epoch
J2000.0, on the system of FK5
46- 47 I2 arcmin DEm Declination J2000 (minutes)
49- 53 F5.2 arcsec DEs Declination J2000 (seconds)
56- 62 F7.4 s/yr pmRA *Proper motion in RA, J2000
64- 69 F6.3 arcsec/yr pmDE *Proper motion in DE, J2000
71- 72 I2 --- Npos *Number of individual positions used
74- 75 I2 10mas e_RA *Mean error of RA
77- 78 I2 10mas e_DE *Mean error of DE
80- 83 F4.1 mas/yr e_pmRA *Mean error of pmRA
85- 88 F4.1 mas/yr e_pmDE *Mean error of pmDE
90- 94 F5.2 yr EpRA-1900 *Weighted mean epoch, RA and pmRA
96-100 F5.2 yr EpDE-1900 *Weighted mean epoch, DE and pmDE
102-107 I6 --- SAO [1/258997]? SAO Designation
109-114 I6 --- HD [1/359083]? Henry Draper Designation
117-125 A9 --- CPD Cape Photographic Durchmusterung Designation
127 A1 --- Flag1 *'P' - problem, 'C' - comment
128 A1 --- Flag2 *'D' - double star
129 A1 --- Flag3 * - not used
130 A1 --- Flag4 *'F' - member of FK5
131 A1 --- Flag5 *'R' - remark, 'V' - V Mag (CPC-2)
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Note on PPM:
Designation of the star in PPM South starting with No. 181732,
see chapter 3 of the author's description file "desc.txt".
Note on DM:
Designation of the star in the Bonner Durchmusterung (for zones from
-02 to -22 degrees) or in the Cordoba Durchmusterung (zones -23 to
-89 degrees).
Note on Mag and Sp:
See chapter 3 of description file "desc.txt".
Note on pmRA:
Proper motion in right ascension for epoch and equinox J2000.0,
on the system of FK5 given in seconds of time per Julian year.
Note on pmDE:
Proper motion in Declination for epoch and equinox J2000.0,
on the system of FK5 given in seconds of arc per Julian year.
Note on Npos:
Number of individual published positions used for the
derivation of the position and proper motion given.
Note on e_RA:
Mean error of right ascension at the mean epoch of right ascension EpRA,
multiplied by the cosine of declination, given in units of 0.01
seconds of arc.
Note on e_DE:
Mean error of declination at the mean epoch of declination EpDE, given
in units of 0.01 seconds of arc.
Note on e_pmRA:
Mean error of the proper motion in right ascension, multiplied by
the cosine of declination, given in units of 0.001 seconds of arc
per Julian year.
Note on e_pmDE:
mean error of the proper motion in declination given in units of
0.001 seconds of arc per Julian year
Note on EpRA-1900:
Weighted mean epoch of the measured positions used for the
derivation of RA and pmRA, given in years since 1900.0.
Note on EpDE-1900:
Weighted mean epoch of the measured positions used for the
derivation of DE and pmDE, given in years since 1900.0.
Note on Flag1:
P - problem case, preferably not to be used as astrometric reference star.
C - a critical comment is given in the List of Critical Comments.
Not to be used as astrometric reference star.
Note on Flag2:
D - double star, preferably not to be used as astrometric reference star.
Note on Flag3:
Not used, void for consistency with PPM (north).
Note on Flag4:
F - member of FK5, mostly bright stars, original FK5 data are given.
Note on Flag5:
R - a remark is given in the List of Remarks on Individual Stars.
V - the magnitude is a photographic V magnitude copied from CPC-2.
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Byte-per-byte Description of file: ppma2.dat
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Bytes Format Units Label Explanations
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2- 4 A3 --- --- [PPM] 3 characters 'PPM'
5- 10 I6 --- PPM PPM number
11- 16 F6.1 mag Mag Magnitude
19- 20 A2 --- Sp Spectral type
22 A1 --- Flag1 *Problem flag
24- 38 D15.8 rad RA50 Right ascension for Equinox=B9150 and
Epoch=B1950, FK4 system
40- 54 D15.8 rad Dec50 Declination for Equinox=B9150 and
Epoch=B1950, FK4 system
56- 67 D12.5 0.01rad/a PMA50 Proper motion in RA in FK4 system,
radians/tropical century
69- 80 D12.5 0.01rad/a PMD50 Proper motion in DE in FK4 system,
radians/tropical century
82- 96 D15.8 rad R.A. Right ascension for Equinox=B9150 and
Epoch=J2000, FK5 system
98-112 D15.8 rad Dec. Declination for Equinox=J2000 and
Epoch=J2000, FK5 system
114-125 D12.5 0.01rad/a PMA Proper motion in R.A. in FK5 system,
radians/tropical century
127-138 D12.5 0.01rad/a PMD Proper motion in Dec. in FK5 system,
radians/tropical century
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Note on Flag1:
P - problem case, preferably not to be used as astrometric
reference star.
C - a critical comment is given in the List of Critical Comments.
Not to be used as astrometric reference star.
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References:
Fricke, W., Schwan, H., Lederle, T. (1988): Fifth Fundamental
Catalogue (FK5). Part I. The Basic Fundamental Stars.
Veroeff. Astron. Rechen-Institut Heidelberg Nr.32. I/149
IAU (1976): IAU Transaction XVI B, Reidel Publ., Dordrecht 1977.
Roeser, S., Bastian, U. (1991): PPM Star Catalogue, Astronomisches
Rechen-Institut, Heidelberg, Vols. I and II, printed
by Spektrum Akademischer Verlag, Heidelberg
See also:
I/149 : Fifth Fundamental Catalogue (FK5)
I/146 : PPM-North Catalogue
I/195 : FOCAT-S Catalogue, the main source of new data.
I/206 : Bright Star Supplement to PPM
I/208 : The 90000 stars Supplement to PPM
Acknowledgements:
We sincerely thank Dr S. Roeser for providing the tape version
Historical Notes:
* 27-Oct-1992: Tape received at CDS from S. Roeser
* 19-Jul-1993: First standardized description at CDS (Francois Ochsenbein)
* 14-Nov-1994: Description revisited by Lee E. Brotzman [Hughes STX]
and Gail L. Schneider [NSSDC/ADC]
(End) Lee E. Brotzman [Hughes STX] and Gail L. Schneider [NSSDC/ADC] 14-Nov-1994