Spectra of Planetary Nebulae

Nebula	M3-28	RA (J2000)	18 32 41.3
Constellation	Scutum	Dec	-10 05 50.0
Size (arcsec)	20 x 10	Other names	PK 021-00.1
Mag (V)	15.6		Sa 3-136
Surface Brightness (mag/arcsec2)	20.11

HAG 24" RC, ZWO ASI2600MM Pro, Lhires III, 300 gr/mm, 2 x 900 sec, 2024-08-16@22:07

Very faint. Weak oxygen and strong nitrogen

DSS2 image, 10 arcmin square

69 / 209 (pg 191)