| Nebula | NGC3587 | RA (J2000) | 11 14 47.7 |
| Constellation | Ursa Major | Dec | +55 01 08.4 |
| Size (arcsec) | 35 | Other names | PK 148+57 1 |
| Mag (V) | 9 | M97 | |
| Surface Brightness (mag/arcsec2) | 16.44 | Owl |

| HAG 24" RC, SBIG STF-8300M, Lhires III, 300 gr/mm, 3600 sec, 2019-03-25@22:15 |
DSS2 image, 10 arcmin square
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90 / 209 (pg 6) |