J/A+A/408/1029 Coordinates of Galactic planetary nebulae (Kerber+, 2003)
Galactic Planetary Nebulae and their central stars.
I. An accurate and homogeneous set of coordinates.
Kerber F., Mignani R.P., Guglielmetti F., Wicenec A.
<Astron. Astrophys. 408, 1029 (2003)>
=2003A&A...408.1029K 2003A&A...408.1029K
ADC_Keywords: Planetary nebulae
Keywords: planetary nebulae: general - catalogs - astrometry -
astronomical data bases: miscellaneous
Description:
The table is a compilation of the positions of 1312 Galactic Planetary
Nebulae (PNe). We have used the 2nd generation of the Guide Star
Catalogue (GSC-II, Cat. I/271) as a reference astrometric catalogue
to compile the positions of 1086 Galactic Planetary Nebulae (PNe)
listed in the Strasbourg ESO Catalogue (SEC, Cat. V/84), its
supplement and the version 2000 of the Catalogue of Planetary Nebulae.
This constitutes about 75% of all known PNe. For these PNe, the ones
with a known central star (CS) or with a small diameter, we have
derived coordinates with an absolute accuracy of ∼0.35" in each
coordinate, which is the intrinsic astrometric precision of the
GSC-II. For another 226, mostly extended, objects without a GSC-II
counterpart we give coordinates based on the second epoch Digital Sky
Survey (DSS-II). While these coordinates may have systematic offsets
relative to the GSC-II of up to 5 arcsecs, our new coordinates usually
represent a significant improvement over the previous catalogue values
for these large objects. This is the first truly homogeneous
compilation of PNe positions over the whole sky and the most accurate
one available so far.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 100 1312 Main catalogue
table1.tsv 93 1325 Main catalogue (tsv+header, for use with Skycat)
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See also:
IV/24 : Catalogue of Galactic Planetary Nebulae (Kohoutek, 2001)
I/271 : The Guide Star Catalog, Version 2.2 (GSC2.2) (STScI, 2001)
V/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- PN PN identifier
15- 28 A14 --- GSC-II ID number from GSC-II (1)
30- 31 I2 h RAh Right ascension (J2000)
33- 34 I2 min RAm Right ascension (J2000)
36- 41 F6.3 s RAs Right ascension (J2000)
43 A1 --- DE- Declination sign (J2000)
44- 45 I2 deg DEd Declination (J2000)
47- 48 I2 arcmin DEm Declination (J2000)
50- 54 F5.2 arcsec DEs Declination (J2000)
56- 62 F7.3 deg GLON Galactic longitude
64- 70 F7.3 deg GLAT Galactic latitude
72- 79 F8.3 yr Epoch [1957.6,1999.189]?=0.000 GSC-II Epoch (2)
81- 87 F7.2 arcsec Sep [0.00,1710.58] Distance (3)
89- 95 F7.2 deg PA Position angle (4)
97-100 A4 --- Class Classification (5)
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Note (1): Note on ID number from GSC-II:
This is the ID as contained in the full GSC-II catalogue version
2.1.1. If this field is empty no associated GSC-II object has been
identified. Some of the IDs can not be found in the public version of
the GSC-II 2.1.1 since it has limiting magnitudes of F=18.5, J=19.5,
V=19.5.
Note (2): GSC-II Epoch:
Epoch from the GSC-II catalogue. If this field is 0.000 no
associated GSC-II object has been identified.
Note (3): Distance:
The distance in arcsec from the original position as found in the
input catalogues.
Note (4): Position angle:
The position angle north over east to the original position as found
in the input catalogues.
Note (5): Classification uses the following symbols:
CS = A central star is known or recognizable, clearly separated
from the nebula.
ST = The nebular itself is stellar like or unresolved
PHOT = The nebula is either resolved or extended with a well defined
photometric center.
GEO = The nebula is extended either ring-like or symmetric in general,
or with a more complex morphology and no well defined
photometric center.
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History:
* 28-Nov-2003: Prepared by F. Kerber [ESO]
* 06-May-2004: for 10 stars, the minus sign of the declination was missing.
* 03-Mar-2005: Names corrected (O instead of 0)
(End) F. Kerber [ESO], P. Bauer [CDS] 06-May-2004