Spectra of Planetary Nebulae
| Nebula | M4-17 | RA (J2000) | 20 09 01.9 |
| Constellation | Cygnus | Dec | +43 43 43.5 |
| Size (arcsec) | ~ 30 x 15 | Other names | PK 079+05.1 |
| Mag (V) | ? 18.6 | ||
| Surface Brightness (mag/arcsec2) | n/a |
HAG 24" RC, SBIG STF-8300M, LHires II, 300gr/mm, 1800 sec, 2020-10-26@22:38
DSS2 image, 10 arcmin square
61 / 187 (pg 88)