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Spectra of Planetary Nebulae

NebulaNGC6857RA (J2000)20 01 47.7
ConstellationCygnusDec+33 31 38.2
Size (arcsec)~40Other namesPK 070+01.2
Mag (V)n/aVV 247
Surface Brightness (mag/arcsec2)n/a


HAG 24" RC, SBIG STF-8300M, LHires III, 300gr/mm, 900 sec, 2020-09-29@19:22
HII region misclassified as PN. Shows oxygen and a trace of nitrogen

DSS2 image, 10 arcmin square
Brightest part of larger nebula Sh2-100

121 / 207 (pg 73)