IC 59; The Reflective Nebula
Also known as LBN 620 the IC 59 nebula is categorized as a reflection nebula that derives its luminosity from its proximity to γ Cas (Gamma Cassiopeiae). This proximity results in IC 59 displaying a mesmerizing hue, caused by the reflection of light off dust particles.
IC 63; The Emission Line Nebula
In contrast IC 63 or LBN 623 is classified as an emission line nebula. Like its counterpart IC 59 it is also fueled by γ Cas. However, due to its closer proximity to γ Cas, IC 63 predominantly emits Hα radiation which gives it an enchanting red glow.
γ Cas; The Dynamic Variable Star
Serving as the energy source, for both nebulae mentioned above γ Cas exemplifies a variable star. This high velocity B type star is renowned for its emission lines. Fluctuating brightness levels that can vary up to a magnitude of approximately1.5.
The fluctuations in the stars brightness are primarily caused by the ejection of material from its region. This is a result of the stars high speed rotation.
The optical image provided here displays IC 59 and IC 63 which were captured using a small amateur telescope. To create this image we used broadband filters (RGB) well as a narrow band filter that specifically targets the emission of ionized hydrogen (Hα). In the image IC 59 can be seen in the left corner while IC 63 appears as a bright nebula, towards the bottom. Additionally γ Cas is located at the right corner of this image.
Image Credit; Jeffbax Velocicaptor & Guillaume Gruntz @astrobin
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