Copyright 2019-2026 Caltech, Support from NASA is acknowledged. This information is taken from a collection created and curated by the NASA/IPAC Extragalactic Database (NED), operated by the California Institute of Technology (Caltech). If your research benefits from the use of NED, the following acknowledgement in your paper would be appreciated: "This research has made use of the NASA/IPAC Extragalactic Database (NED), which is funded by the National Aeronautics and Space Administration and operated by the California Institute of Technology." See: https://ned.ipac.caltech.edu/Documents/Overview/Acknowledgments A subset of the cross-IDs for the object, in NED standard format Note about the object, as transcribed from the referenced catalog or publication Right Ascension in sexagesimal (FK5 Equatorial J2000.0) Declination in sexagesimal (FK5 Equatorial J2000.0) Right Ascension in degrees (FK5 Equatorial J2000.0) Declination in degrees (FK5 Equatorial J2000.0) 95 percent uncertainty ellipse in semi-major axis 95 percent uncertainty ellipse in semi-minor axis Position angle of uncertainty ellipse (FK5 Equatorial J2000) Bibliographic reference code Longitude in decimal degrees (Galactic) Latitude in degrees (Galactic) Heliocentric redshift Uncertainty for heliocentric redshift The heliocentric radial velocity The uncertainty on the Heliocentric radial velocity Bibliographic reference code Radial velocity, derived from the heliocentric redshift, in the Cosmic Microwave Background reference frame The uncertainty on the radial velocity in the Cosmic Microwave Background reference frame Hubble Flow Distance, calculated from the apparent velocity corrected for the Cosmic Microwave Background velocity with assumed Hubble constant The uncertainty for Hubble Flow Distance, calculated from the apparent velocity corrected for the Cosmic Microwave Background velocity Mean of the Distance in megaparsecs Standard Error of the Mean of the Distance in megaparsecs Region of the electromagnetic spectrum where the object was detected, Vis, Radio, IR UV, XRay, Gamma, etc. Physical type of the celestial object: G, Gpair, GTrpl, GGroup, QSO, AbLS, etc. Optical Morphological Classifications Bibliographic reference code Spectral, Active Galactic Nuclei, and Starburst Activity Types Bibliographic reference code Other Object Info Bandpass of diameter Major axis diameter (2*a) Bibliographic reference code Physical Major Axis Foreground Galactic extinction at the coordinates of the named object in Landolt V band Foreground Galactic extinction at the coordinates of the named object in UKIRT K band Note about the distance used to compute derived quantities. This is different for every object
Messier 031; MESSIER 031; NGC 0224; Andromeda galaxy; Andromeda Galaxy 00h42m44.3503s +41d16m08.634s 10.68479291667 41.269065 0.08 0.08 0 2010ApJS..189...37E 121.174405026715 -21.5729359805299 -0.000991 3e-06 -297.094325878 0.899377374 2000UZC...C......0F -582.23790006735 19.9803023845512 0.784277640191577 0.00594498953252804 G SA(s)b 1991RC3.9.C...0000d SA(s)b LINER RC3 D_0 (blue) 12250.4 1991RC3.9.C...0000d 46.5795158088834 0.170003995299339 0.0187240000814199 Derived physical diameter is based on the mean redshift-independent distance = 0.78 Mpc