Spectrum of the Ring Nebula

Using SharpCap for other Astro Imaging such as all sky cameras and meteor detection
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Spectrum of the Ring Nebula

Post by oopfan »

An interesting NASA APOD today:

The identity of the three rings:
Left side: Ha + NII
Middle: OIII
Right side: Normal visual appearance

OIII is very strong in Planetary Nebulae, even stronger than Ha in many cases. However, OIII tends to be weak in regular Emission Nebulae.

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