List edit
| Galaxy name/designation | Supposed major axis diameter (in light-years) | Supposed minor axis diameter (in light years) | Reasons for irregularity | Estimation method |
Link for object |
|---|---|---|---|---|---|
| ESO 298-17 | 8,842,000 | 8,842,000 | Cluster of galaxies (see classification) | 25.5 mag/arcsec2 | NED |
| OGC 2 | 3,356,000 | 906,200 | Angular diameter likely of foreground object NGC 3384. | 25.0 r-mag arcsec−2 | NED |
| UGC 568 | 2,541,000 | 2,084,000 | Based on erroneous supernova measurement (SDSS-II SN 10649) | 2MASS K-band total mag | NED |
| SDSS J160603.72+002303.8 | 1,478,000 | ~ | Possible interference of foreground dust. | SDSS r-mag Petrosian | NED |
| UGC 10638 | 1,307,000 | ~ | Galaxy chain of at least 10 members (see environment search query). | 25.0 B-mag arcsec−2 | NED |
| ESO 356-14 | 1,144,000 | 183,100 | Clump of five elliptical galaxies | 25.5 B-mag arcsec−2 | NED |
| 2MASX J02004922-2437541 | 833,500 | 450,100 | Unclassified infrared source. Listed in SIMBAD as elliptical (morphology: D). Further review needed. | 2MASS K-band total mag | NED |
| ESO 146-5 | 660,600 | 363,300 | Multiple system with at least six members (see environment search query). | 27.0 B-mag arcsec−2 | NED |