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MCG: morphological catalogue of galaxies
Contents
Table name: MCG
Records: 28904
Version:
Spectral Band: OPT
Kind of Object: Galaxy
Mode: Morphology,Survey
Preview:
Coordinates: B1950
Reference
Vorontsov-Vel'yaminov B.A., Archipova V.P.: Morfologiceskij katalog
galaktik (morphological catalogue of galaxies), in four parts:
- Part I:Catalogue of 7200 Galaxies in zone +90 to +45, State University,
Moscow, 1962;
- Part II:Catalogue of 9650 Galaxies in zone +45 to +15, State University,
Moscow, 1964;
- Part III:Catalogue of 6740 Galaxies in zone +15 to -9, State University,
Moscow, 1963;
- Part IV:Catalogue of 5410 Galaxies in zone -9 to -33, State University,
Moscow, 1968.
Description
The catalogue is based on the Palomar Sky Survey Atlas. No definite limit
according to the magnitude could be set, but apparently all galaxies brighter
than magnitude 15.0 are included. The zones correspond to the Palomar Atlas
and are numerated from the equator to the north pole from 0 to 15, and
correspondingly as negative to the south. The fields in zone are numerated in
order of increasing right ascension. The names of the objects are of the form
+XX-YY-ZZZ , where:
- XX number of the zone;
- YY number of the field in the zone;
- ZZZ order number of the galaxy in the field.
The coordinates refer to the epoch of 1950.0 and were measured only for
identification. The magnitudes were estimated to +-1 mag. More exact estimates
are given when available.
Fields
Name Type Meaning
name A MCG name
note A Blank or + if there is a note about that object in the
original catalogue
ngc_c A Blank if the next ngc field provides an NGC number; I
if the next ngc field lists an IC number.
ngc I NGC or IC number (see ngc_c)
r_a I Right Ascension 1950
dec I Declination 1950
mag F Magnitude
d2a F Major diameter of the galaxy in arcmins
d2b F Minor diameter of the galaxy in arcmins
d2a_i F Major diameter of the inner region in arcmins
d2b_i F Minor diameter of the inner region in arcmins
intin I Intensity of inner region: 1 if black image, ... , 6
if barely visible
intout I Intensity of outer region: 1 if black image, ... , 6
if barely visible
i I Inclination in 5 steps: 1 if face on, ... , 5 if edge on
Derived Values
_ra F J2000 Right Ascension
_de F J2000 Declination
_lii F Galactic Longitude
_bii F Galactic Latitude
_L F SuperGalactic Longitude
_B F SuperGalactic Latitude