| Name | Type | Length | Unit | Description | Default Value | Unified Content Descriptor |
| MGCID | bigint | 8 | | MGC object ID | | |
| QUALITY | tinyint | 1 | | Quality class | | |
| HLRADIUS | real | 4 | pixel | Semi-major axis of half-light ellipse | | |
| INEXR | tinyint | 1 | | Exclusion region flag (0 exclude/ 1 keep) | | |
| MU_EFF | real | 4 | mag arcsec^-2 | Effective surface brightness | | |
| SDSS_N | int | 4 | | Number of SDSS objects matched to MGC object | | |
| SDSS_OBJID | bigint | 8 | | SDSS PhotoObject ID | | |
| SDSS_RUN | int | 4 | | SDSS run number | | |
| SDSS_RERUN | int | 4 | | SDSS rerun number | | |
| SDSS_CAMCOL | int | 4 | | SDSS camera column | | |
| SDSS_FIELD | int | 4 | | SDSS field number | | |
| SDSS_RA | float | 8 | | SDSS object right ascension in deg (J2000) | | |
| SDSS_DEC | float | 8 | | SDSS object declination in deg (J2000) | | |
| SDSS_PSFMAG_U | real | 4 | | SDSS extinction corrected PSF magnitude | | |
| SDSS_PSFMAG_G | real | 4 | | SDSS extinction corrected PSF magnitude | | |
| SDSS_PSFMAG_R | real | 4 | | SDSS extinction corrected PSF magnitude | | |
| SDSS_PSFMAG_I | real | 4 | | SDSS extinction corrected PSF magnitude | | |
| SDSS_PSFMAG_Z | real | 4 | | SDSS extinction corrected PSF magnitude | | |
| SDSS_PETMAG_U | real | 4 | | SDSS extinction corrected Petrosian magnitude | | |
| SDSS_PETMAG_G | real | 4 | | SDSS extinction corrected Petrosian magnitude | | |
| SDSS_PETMAG_R | real | 4 | | SDSS extinction corrected Petrosian magnitude | | |
| SDSS_PETMAG_I | real | 4 | | SDSS extinction corrected Petrosian magnitude | | |
| SDSS_PETMAG_Z | real | 4 | | SDSS extinction corrected Petrosian magnitude | | |
| SDSS_MODMAG_U | real | 4 | | SDSS extinction corrected model magnitude | | |
| SDSS_MODMAG_G | real | 4 | | SDSS extinction corrected model magnitude | | |
| SDSS_MODMAG_R | real | 4 | | SDSS extinction corrected model magnitude | | |
| SDSS_MODMAG_I | real | 4 | | SDSS extinction corrected model magnitude | | |
| SDSS_MODMAG_Z | real | 4 | | SDSS extinction corrected model magnitude | | |
| SDSS_EXTINC_U | real | 4 | | SDSS Galactic extinction correction in mag | | |
| SDSS_EXTINC_G | real | 4 | | SDSS Galactic extinction correction in mag | | |
| SDSS_EXTINC_R | real | 4 | | SDSS Galactic extinction correction in mag | | |
| SDSS_EXTINC_I | real | 4 | | SDSS Galactic extinction correction in mag | | |
| SDSS_EXTINC_Z | real | 4 | | SDSS Galactic extinction correction in mag | | |
| SDSS_PETR50_U | real | 4 | | SDSS radius containing 50% Petrosian flux in arcsec | | |
| SDSS_PETR50_G | real | 4 | | SDSS radius containing 50% Petrosian flux in arcsec | | |
| SDSS_PETR50_R | real | 4 | | SDSS radius containing 50% Petrosian flux in arcsec | | |
| SDSS_PETR50_I | real | 4 | | SDSS radius containing 50% Petrosian flux in arcsec | | |
| SDSS_PETR50_Z | real | 4 | | SDSS radius containing 50% Petrosian flux in arcsec | | |
| SDSS_TYPE | smallint | 2 | | SDSS morphological classification | | |
| SDSS_CLASS | smallint | 2 | | MGC translation of SDSS_TYPE | | |
| SDSS_SPECCLASS | smallint | 2 | | SDSS spectroscopic classification | | |
| SDSS_SPCLASS | smallint | 2 | | MGC translation of SDSS_SPECCLASS | | |
| TDFGRS_N | smallint | 2 | | Number of 2dFGRS objects/spectra for this MGC object | | |
| TDFGRS_NAME | varchar | 10 | | 2dFGRS object name | | |
| TDFGRS_SEQNUM | bigint | 8 | | 2dFGRS sequence number | | |
| TDFGRS_RA | float | 8 | | 2dFGRS object right ascension in deg (J2000) | | |
| TDFGRS_DEC | float | 8 | | 2dFGRS object declination in deg (J2000) | | |
| TDFGRS_UKST | int | 4 | | UKST survey field number | | |
| TDFGRS_BJG | real | 4 | | 2dFGRS final b_J magnitude | | |
| TDGRS_BJSEL | real | 4 | | 2dFGRS final extinction corrected b_J magnitude | | |
| TDFGRS_SBBJMAG | real | 4 | | SSS b_J magnitude | | |
| TDFGRS_SRRMAG | real | 4 | | SSS R magnitude | | |
| TDGRS_IGAL | tinyint | 1 | | 2dFGRS classification | | |
| TDFGRS_CLASS | smallint | 2 | | MGC translation of TDFGRS_IGAL | | |
| TQZ_NAME | varchar | 20 | | 2QZ object name | | |
| TQZ_RA | float | 8 | | 2QZ object right ascension in deg (J2000) | | |
| TQZ_DEC | float | 8 | | 2QZ object declination in deg (J2000) | | |
| TQZ_UKST | int | 4 | | UKST survey field number | | |
| TQZ_BJ | real | 4 | | 2QZ bJ magnitude | | |
| TQZ_UMBJ | real | 4 | | 2QZ U-bJ colour | | |
| TQZ_BJMR | real | 4 | | 2QZ bJ-R colour | | |
| TQZ_DUST | real | 4 | | 2QZ E(B-V) | | |
| TQZ_NOBS | tinyint | 1 | | Number of 2QZ spectra for this MGC object | | |
| TQZ_IDENT | varchar | 10 | | 2QZ identification | | |
| TQZ_CLASS | smallint | 2 | | MGC translation of TQZ_IDENT | | |
| NED_N | smallint | 2 | | Number of NED objects matched to this MGC object | | |
| NED_NAME | varchar | 32 | | NED object name | | |
| NED_RA | float | 8 | | NED object right ascension in deg (J2000) | | |
| NED_DEC | float | 8 | | NED object declination in deg (J2000) | | |
| NED_IDENT | varchar | 4 | | NED identification | | |
| NED_CLASS | smallint | 2 | | MGC translation of NED_IDENT | | |
| PF_NAME | varchar | 8 | | PFr object name | | |
| PF_RA | float | 8 | | PFr object right ascension in deg (J2000) | | |
| PF_DEC | float | 8 | | PFr object declination in deg (J2000) | | |
| PF_R | real | 4 | | PFr R magnitude from USNO | | |
| PF_K | real | 4 | | PFr K magnitude from 2MASS | | |
| PF_JMK | real | 4 | | PFr J-K colour from 2MASS | | |
| LSBG_NAME | varchar | 10 | | LSBG object name | | |
| LSBG_RA | float | 8 | | LSBG object right ascension in deg (J2000) | | |
| LSBG_DEC | float | 8 | | LSBG object declination in deg (J2000) | | |
| LSBG_BTOT | float | 8 | | LSBG total B magnitude | | |
| LSBG_MUCEN | real | 4 | | LSBG central surface brightness in mag/arcsec^2 | | |
| LSBG_MUEFF | real | 4 | | LSBG effective surface brightness | | |
| LSBG_REFF | real | 4 | | LSBG effective radius in arcsec | | |
| MGCZ_ZHELIO | real | 4 | | MGCz heliocentric redshift | | |
| MGCZ_ZQUAL | tinyint | 1 | | MGCz redshift quality | | |
| SDSS_Z | real | 4 | | SDSS redshift | | |
| SDSS_ZQUAL | tinyint | 1 | | SDSS redshift quality | | |
| TDFGRS_ZHELIO | real | 4 | | 2dFGRS heliocentric redshift | | |
| TDFGRS_ZQUAL | tinyint | 1 | | 2dFGRS redshift quality | | |
| BESTTQZ_Z | real | 4 | | 2qz redshift | | |
| TQZ_ZQUAL | tinyint | 1 | | 2QZ redshift quality | | |
| NED_ZHELIO | real | 4 | | NED heliocentric redshift | | |
| NED_ZQUAL | tinyint | 1 | | NED redshift quality | | |
| PF_Z | real | 4 | | PFr redshift | | |
| PF_ZQUAL | tinyint | 1 | | PFr redshift quality | | |
| LSBG_Z | real | 4 | | LSBG heliocentric redshift | | |
| LSBG_ZQUAL | tinyint | 1 | | LSBG redshift quality | | |
| ZSOURCE | varchar | 10 | | Identifier for best redshift and quality | | |
| BEST_Z | real | 4 | | Best redshift | | |
| BEST_ZQUAL | tinyint | 1 | | Quality of best redshift | | |
| N_SPEC | smallint | 2 | | Total number of spectra for this object | | |
| Total length | | 488 |