Catalog of Galactic Planetary Nebulae
The Catalog of Galactic Planetary Nebulae is an astronomical catalog containing the planetary nebulae of the Milky Way known until the end of 1999 . After its authors Luboš Perek and Luboš Kohoutek , one also speaks of the Perek-Kohoutek catalog .
In 1967 Luboš Perek and Luboš Kohoutek created a catalog with the same name, known as CGPN (1967). The updated catalog described by Kohoutek in an article in Astronomy & Astrophysics is expressly a continuation of the 1967 catalog. It contains all objects that were classified and published as planetary nebulae up to the end of 1999, as well as lists of possible pre- and post-planetary nebulae. This later version, also known as CGPN (2000), was published in the Hamburg observatory's treatises . There you will find further criteria for the inclusion of objects in the catalog.
The tables in the catalog look like this:
- Table 1: A list of all objects that were classified and published as planetary nebulae by the end of 1999 (1755 entries)
- Table 2: A list reduced by incorrectly classified objects (1510 entries)
- Table 3: The list of differences from Table 1 and Table 2 with a reason for the misclassification
- Table 4: More precise coordinates of planetary nebulae
- Table 5: A list of possible pre-planetary nebulae
- Table 6: A list of possible post-planetary nebulae
and some other data and statistics from that data. The objects in this catalog are identified with the so-called PK identifier (PK stands for Perek, Kohoutek), which consists of a character string for the galactic coordinates in whole degrees and a serial number for objects in the relevant square, separated by a point . (An example is 221 + 05.2, in the SIMBAD database you can find the associated fog under the identifier PK 221 + 05.2 .)
The names of the planetary nebulae and their right ascension and declination are given for these Ids in the catalog , respectively for the equinoxes 1950 and 2000, as well as more precise galactic coordinates than are available in the PK identifier.
Individual evidence
- ↑ Brian Cudnik: Faint Objects and How to Observe Them , Springer Verlag (2013), ISBN 978-1-4419-6756-5 , page 14
- ^ L. Perek, L. Kohoutek: Catalog of GalacticPlanetary Nebulae , Academia Prague (CGPN (1967))
- ^ L. Kohoutek: Version 2000 of the Catalog of Galactic Planetary Nebulae . In: Astronomy & Astrophysics . 378, 2001, pp. 843-846. doi : 10.1051 / 0004-6361: 20011162 .
- ^ A b Lubos Kohoutek: Catalog of Galactic Planetary Nebulae, Updated Version 2000. In: Treatises from the Hamburg Observatory (= Treatises from the Hamburg Observatory. Volume XII, Part 1 and 2). University of Hamburg, Hamburg-Bergedorf 2001, ISSN 0374-1583 . ( online )