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 III, 300 gr/mm, 300 sec, 2018-09-17@21:52

Strong nitrogen and some sulphur and argon

Video and 2D plot of scan across M57

Image

DSS2 image, 10 arcmin square

105 / 209 (pg 1)