Famous Markarian galaxies
| Mrk 231 | the closest ULIRG, BAL QSO and most luminous IR galaxy in the Local Universe |
| Mrk 421, Mrk 501 | are among the highest known energy sources (Mrk 501 is one of the 5 known TeV sources) |
| Mrk 116 (=IZw18) | the most metal-deficient blue compact dwarf galaxy (BCDG) (most of BCDGs are Mrk and SBS galaxies) |
| Mrk 938 | the first dynamic merger discovered observationally |
| Mrk 110 | intermediate between NLS1 and BLS1 (FWHM=4900 km/s); crucial for understanding differences between BLS1s and NLS1s |
| Mrk 6 | shows variations of spectral lines typical of different types of objects (Sy2 & Sy1); very high column density of H in X-rays |
| Mrk 766 | one of the most important NLS1 galaxies |
| Mrk 273 | a wonderful double-double nuclei galaxy |
| Mrk 266 | has a multiple structure nuclear region |
| Mrk 231, Mrk 507 | 2 of 5 known super strongest FeII emitters (FeII λ4570 / Hβ > 2) |
| Mrk 530, Mrk 993, Mrk 1018 | change their spectra from Sy1.9 to Sy1.0 |
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