Spectra of Planetary Nebulae

Nebula	M4-9	RA (J2000)	18 14 18.4
Constellation	Serpens	Dec	-04 59 22.1
Size (arcsec)	20	Other names	PK 024+05.1
Mag (V)	n/a		Sa 3-125
Surface Brightness (mag/arcsec2)	n/a

HAG 24" RC, SBIG STF-8300M, Lhires III, 300 gr/mm, 1800 sec, 2021-08-28@22:50

Very faint ring

DSS2 image, 10 arcmin square

76 / 209 (pg 113)