Spectra of Planetary Nebulae
| Nebula | NGC6720 | RA (J2000) | 18 53 35.0 |
| Constellation | Lyra | Dec | +33 01 44.8 |
| Size (arcsec) | 229 x 144 | Other names | PK 063+13.1 |
| Mag (V) | 8.8 | M57 | |
| Surface Brightness (mag/arcsec2) | 18.83 | Ring |
HAG 24" RC, SBIG STF-8300M, LHires II, 300gr/mm, 300 sec, 2018-09-17@21:52
Strong nitrogen and some sulphur and argon DSS2 image, 10 arcmin square
Video and 2D plot of scan across M57
Image of NGC6720 is here
91 / 187 (pg 8)