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NGC: New General Catalogue

Contents

Table name: 	NGC
Records:    	6524
Spectral Band:	Vband,OPT,Bband
Kind of Object: Star,Galaxy
Mode: 		Survey
PreView:
Coordinates: 	J1950

Description

This catalogue has been put up as an extract of Simbad by the CDS in in Strasbourg. It is not complete (about 1300 object missing) and mostly contains galaxies. Some of these objects have been identified as being stars. In that case, if known, the HD number has been used. If no identification is present in HD, the object is a cluster or a nebula. All galaxies have `-1' in the HD field.

Fields


Name	Type	Meaning

ngc	A	NGC id. Not a number because some have A or B appended 
		to the number
hd	I	HD number if object is a star, -1 for a galaxy, empty 
		for a cluster or a nebula
name2	A	Other identification (e.g., Messier number, other NGC)
r_a	I	J1950 Right Ascension
dec	I	J1950 Declination
mt	A	Morphological Classification in the Hubble system
d2a	F	Major diameter (arcmin)
d2b	F	Minor diameter (arcmin)
posang	F	Position angle (from north estwards), in degrees
i  	I	Inclination class. From 1 (face-on) to 7 (edge-on)
bmag  	F   	Apparent blue magnitude
vmag    F 	Apparent visual magnitude (not often available)

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