I/326 Pulkovo Catalogue of Reference Stars around GRS (Ryl'kov+, 2005)
The Catalogue of Reference Stars around 72 Galactic Radio-Sources.
Ryl'kov V., Narizhnaya N.
<Romanian Astronomical Journal Supplement, 15, 187-189 (2005)>
=2005RoAJ...15S.187R 2005RoAJ...15S.187R
=2013yCat.1326....0R 2013yCat.1326....0R
ADC_Keywords: Fundamental catalog ; Radio sources ; Positional data
Keywords: galactic radio sources - astrometric data - astrometric reference star
Abstract:
Pulkovo catalogue of reference stars inside 78 fields around galactic
radio stars (Pul GRS) of northern sky from H.G. Walter's list
(1990A&AS...86..357W 1990A&AS...86..357W) was created. The coordinates of 12495 stars was
obtained from the photographic plates of Pulkovo Normal Astrograph
(NA, 33/346), which was photographed in 1994-1999 years. Size of
worked fields (radius about 20-40 angular seconds) was determined from
the resolved problem and having technical resources: modern dimensions
of CCD-detector. Precise astronometric coordinates of stars were
intending for optical control beyond the positions of radio sources
(GRS) by means of CCD-observation. The galactic radio stars can be the
frames at the definition of connection between the existed ground and
cosmic astronometric reference coordinate sets.
Coordinate calculation was realization with used reference stars from
catalogue Tycho-2 (ICRF, J2000.0). Error of a unit of weight from
reduction coordinates was resulted nearly 0.12"-0.27" (at a number
of reference stars were from 12 to 50). Internal precision of
catalogue was obtained from 0.02 to 0.20 arcseconds at the both
coordinates.
Description:
Two catalogues are presented.
The astrometric positions of 78 radio-sources, their comparison with
Hipparcos data, physical character and optical structure theirs stars
are resulted in pgrs.dat.
The coordinates of 12495 stars, their internal precision, number of
used observation and magnitude are resulted in spgrs.dat.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
pgrsdat.dat 100 78 PulGRS, the Pulkovo Galactic Radio Sources Catalogue
spgrsdat.dat 94 12495 sPulGRS, the Pulkovo Catalogue of Reference Stars
around Galactic Radio Sources
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See also:
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
I/284 : The USNO-B1.0 Catalog (Monet+ 2003)
I/315 : UCAC3 Catalogue (Zacharias+ 2009)
Byte-by-byte Description of file: pgrsdat.dat
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Bytes Format Units Label Explanations
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1- 2 I02 --- GRS [1/78] GRS sequential number
4- 9 I6 --- HIP HIPPARCOS catalogue sequential number
12- 17 A6 --- Var Type of variability, optical structure
of star (1)
20- 23 A4 --- Char Character of star (2)
26- 30 F5.2 mag Bmag Tycho-2 blue (B) magnitude
33- 43 A11 --- SpType MK spectral type and luminosity class
45- 49 F5.3 yr Ep-1990 Mean epoch of observation for the
right ascension and declination
52- 63 F12.8 deg RAdeg Right ascension (degrees), Eq=J2000.0,
on mean epoch (Ep-1990) of observation
65- 76 F12.8 deg DEdeg Declination (degrees), Eq=J2000.0,
on mean epoch (Ep-1990) of observation
80- 81 I2 10mas e_RAdeg Mean error of RA
84- 85 I2 10mas e_DEdeg Mean error of DE
89 I1 --- N Number of used observations
92- 95 I4 mas O-CRA Deviation to right ascension of PulGRS
from the right ascension of Hipparcos
97-100 I4 mas O-CDE Deviation to declination of PulGRS
from the declination of Hipparcos
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Note (1): Abbreviation of description for the type of variability and
optical structure of the observed galactic radio source as follows:
Ro = Rotationaliy variable
sWU = Similarity to W UMa variable
sr = Semiregular variable
BY = Variable of BY Dra type
RS = Variable of RS CVn type
SX = Variable of SX Ari type
PCy = Variable of P Cyg type
ZAn = Variable of Z And typ
VVC = VV Cep variable
AL = Eclipsing binary of Algol type (detached)
bL = Eclipsing binary of β Lyrae type (semi-detached)
EL = Ellipsoidal variable star
EB = Eclipsing binary
eXB = Eclipsing X-ray binary
WU = Eclipsing binary of W UMa type (contact)
HXB = High Mass X-ray binary
SB = Spectroscopic binary
XB = X-ray binary
Sy = Symbiotic star
TT = T Tau-type star
WR = Wolf-Rayet star
vds = Visual double star
Note (2): Abbreviation of description of peculiar character radiation of
the observed galactic radio source as follows:
V = variable star
X = X-ray source
R = Radio emission
n = absent radio emission confirmed (Walter et al., 1990A&AS...86..357W 1990A&AS...86..357W)
G = γ-ray source
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Byte-by-byte Description of file: spgrsdat.dat
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Bytes Format Units Label Explanations
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1- 5 I05 --- Seq Star identification: number PulGRS (1-78)
+ Sequential Number Star in Field (1)
8- 18 F11.7 deg RAdeg Right ascension (degrees), Eq=J2000.0,
on mean epoch (Ep) of observation
21- 31 F11.7 deg DEdeg Declination (degrees), Eq=J2000.0,
on mean epoch (Ep) of observation
34- 41 F8.3 yr Ep Mean epoch of observation for the right
ascension and declination
44- 45 I2 h RAh Right ascension (Eq=J2000.0, on mean epoch
(Ep) of observation)
47- 48 I2 min RAm Right ascension (Eq=J2000.0, on mean epoch
(Ep) of observation)
50- 55 F6.3 s RAs Right ascension (Eq=J2000.0, on mean epoch
(Ep) of observation)
58 A1 --- DE- Declination sign (Eq=J2000.0, on mean epoch
(Ep) of observation)
59- 60 I2 deg DEd Declination (Eq=J2000.0, on mean epoch
(Ep) of observation)
62- 63 I2 arcmin DEm Declination (Eq=J2000.0, on mean epoch
(Ep) of observation)
65- 69 F5.2 arcsec DEs Declination (Eq=J2000.0, on mean epoch
(Ep) of observation)
72- 75 F4.1 mag B1mag ?=99.9 USNO-B1.0 first blue magnitude (2)
78- 81 F4.1 mag f.mag ?=99.9 UCAC3 fit model magnitude (579-642nm) (2)
84- 85 I2 --- N Number of used observations
88- 90 I3 ms e_RAs [0/39]? Interior error of RA
93- 94 I2 10mas e_DEs [0/86]? Interior error of DE
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Note (1): The two first digits correspond to the sequential number (01-78)
selected for research from us the galactic radio stars (Pul GRS).
The last three digit correspond to the sequential number star in the vicinity
of the radio star.
Note (2): if the star in the used catalogue is absent, then the meaning
of magnitude MusB (Muc3) are given a value equal to 99.9.
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Acknowledgements:
Narizhnaya Natalia, nnat(at)gao.spb.ru
References:
Walter et al., 1990A&AS...86..357W 1990A&AS...86..357W,
Astronomic catalogue of radio star
Ryl'kov & Narizhnaya, 2009, Proceeding of the GAO,N219,v.4,309-314,
The Pulkovo catalogue of Reference Stars for observation galactic
radio sources.
Ryl'kov & Narizhnaya, 2009, Proceeding of the GAO,N219,v.4,299-308,
The astrometric positions of the 78 galactic radio sources.
(End) Patricia Vannier [CDS] 30-Dec-2013