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Spectra of Planetary Nebulae

NebulaM3-28RA (J2000)18 32 41.3
ConstellationScutumDec-10 05 50.0
Size (arcsec)20 x 10Other namesPK 021-00.1
Mag (V)15.6Sa 3-136
Surface Brightness (mag/arcsec2)20.11


HAG 24" RC, ZWO ASI2600MM Pro, LHires III, 300gr/mm, 2 x 900 sec, 2024-08-16@22:07
Very faint. Weak oxygen and strong nitrogen

DSS2 image, 10 arcmin square

66 / 206 (pg 191)