Observed Spectral profile of NGC2346


Date & Time: Dec 29 2014, from 23:05 to 23:08 JST(+0900)
Composed 2 shots with 2 minutes exposed
Optical: Meade 25cm(10") Schmidt Cassegrain (f=2500mm, F10.0)
with SBIG DSS7 Spectrometer
Auto-guided with Meade LX200 Equatorial with Pictor 201XT
Cooled CCD Camera: SBIG ST-402ME (Temp.: -30°C)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Upper strip: taken spectrogram, Lower strip: stretched 3-pixel-width & pseudo-colored image


This page shows a spectrogram of the NGC2346 and an intensity profile provided from it. The profile shows two emission lines from the Balmer series, from Hα to Hβ, of hydrogen atoms. And you can recognize that the nebula includes extraordinary strong two emission lines from the ionized oxygen atoms of O III. Additionally, a notable feature is the strong emission lines of ionized nitrogen (N II), which closely overlap with the Hα line.


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