Spectra of Planetary Nebulae
| Nebula | NGC6857 | RA (J2000) | 20 01 47.7 |
| Constellation | Cygnus | Dec | +33 31 38.2 |
| Size (arcsec) | ~40 | Other names | PK 070+01.2 |
| Mag (V) | n/a | VV 247 | |
| Surface Brightness (mag/arcsec2) | n/a |
HAG 24" RC, SBIG STF-8300M, LHires II, 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
109 / 187 (pg 80)