| Column | Description |
|---|
| pgc | PGC number |
| Name | Common name |
| RA_J2000 | Right Ascension, epoch J2000 |
| DecJ2000 | Declination, epoch J2000 |
| glon | Galactic longitude |
| glat | Galactic latitude |
| sgl | Supergalactic longitude |
| sgb | Supergalactic latitude |
| Diam | Holmberg major diameter in arcmin, at blue isophote ~26.5 mag/as^2 for large galaxies; extreme low surface brightness galaxies are exceptions |
| A26 | Major linear diameter at Holmberg isophote corrected for inclination and extinction |
| b/a | Apparent axial ratio measured at the Holmberg isophote |
| Inc | Inclination from face on: sini^2 = (1-q^2)/(1-q0^2) where q=b/a and q0 depends on type; see reference |
| Ag | Galactic extinction at B given by Schlegel et al. (1998) |
| Ai | Internal B absorption, with inclination and luminosity dependences described in reference |
| LF | Limit on FUV magnitude |
| mFUV | GALEX far ultraviolet magnitude |
| Bt | Total apparent B magnitude, from heterogeneous sources |
| MB | Absolute magnitude corrected for Ag and Ai |
| La | Limit on Halpha magnitude |
| mHa | Magnitude in Halpha emission line |
| Ks | Apparent 2MASS Ks magnitude; estimated from B for very low surface brightness galaxies (see next column) |
| * | asterisk if Ks estimated from B magnitude |
| LH | Limit on HI magnitude |
| m21 | Apparent magnitude in the HI line |
| W50 | HI line width at 50% of maximum, from mixed sources |
| Vm | HI rotational velocity Vm = W50/(2sini), corrected for inclination and tubulent motion |
| T | Morphological type in numeric code of 3rd Ref Catalog |
| Color | Color: Ir, Im, BCD - blue; Tr, dS0em, dEem - mixed; Sph, dE - red |
| SB | Surface brightness: H - high; N - normal; L - low; X - extremely low |
| Vh | Heliocentric radial velocity |
| VLS | Radial velocity with respect to Local Sheet centroid following Tully et al. (2008) |
| VLG | Radial velocity with respect to Local Group centroid following Karachentsev & Makarov (1996) |
| Dist | Distance in Mpc |
| Meth | Distance method: Cep=cepheid PLR; TRGB=tip red giant branch; SN=supernova luminosity; SBF=surface brightness fluctuations; BS=brightest stars; TF=Tully-Fisher relation; FP=fundamental plane; mem=group membership; h,h'=Hubble relation, H0=73 (prime if from Virgocentric flow model) |
| SB_B | Mean B surface brightness inside Holmberg isophote, SB = (Bt-Ag-Ai)+5loga26+8.63 |
| logL_K | Log absolute Ks luminosity, M_K(sun)=3.28 |
| logM26 | Log indicative mass within A26, see reference |
| logMHI | Log of Hydrogen mass |
| Theta1 | Tidal index from distance and mass of nearest significant neighbor; positive=group member, negative=isolated |
| MD | Main disturber: name of neighboring galaxy |
| Theta5 | Tidal index from distance and mass of nearest 5 significant neighbor; positive=group member, negative=isolated |
| Thetaj | Log Ks luminosity density within 1 Mpc, excluding target |