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Spectra of Planetary Nebulae
Nebula
M1-4
RA (J2000)
03 41 43.4
Constellation
Perseus
Dec
+52 17 00.2
Size (arcsec)
stellar
Other names
PK 147-02.1
Mag (V)
14.3
VV 11
Surface Brightness (mag/arcsec2)
19.7
HAG 24" RC, SBIG STF-8300M, LHires III, 300gr/mm, 4 x 600 sec, 2023-04-19@22:45
Helium and weak nitrogen with a trace of argon
DSS2 image, 10 arcmin square