Sh2-188 in Cassiopeia

Sh2-188 in Cassiopeia - Astrophotography - Martin Rusterholz

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The image is of Sharp­less 2–188 (Sh2-188), an unusu­al plan­et­ary neb­ula loc­ated in the con­stel­la­tion Cas­si­opeia. The expand­ing gas from the plan­et­ary neb­ula is col­lid­ing with ambi­ent gas in the inter­stel­lar medi­um. The neb­ula is nearly cir­cu­lar in shape but is much bright­er to the south­east (lower right) because the cent­ral star is mov­ing rap­idly in that dir­ec­tion. Faint wisps of gas can also be seen in the oppos­ite dir­ec­tion. The cent­ral star is blueish start just below the bright orange star in the cen­ter of the nebula.

Details

Tele­scope:
RCOS 14.5″ f/​8
Mount:
ASA DDM85
Cam­era:
Andor CG16M
Fil­ters:
Astro­don Gen2
Expos­ure:
HaOIIIR­GB 760:1000:280:260:240 min.
Loc­a­tion:
ROSA Remote Obser­vat­or­ies South­ern Alps
Author:
© Mar­tin Ruster­holz, Astrophotographer

Find­er Chart Sh2-188 in Cassiopeia

M15 in Pegasus Sky Chart Astrophotography Martin Rusterholz

Image cre­ated by Skychart

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About Me

Hello, my name is Martin Rusterholz. I’m a Swiss amateur astrophotographer living near Zurich, the biggest town in Switzerland. My interest in astronomy started when I was 16. At that time, I built my first Newtonian telescope and mount. I studied physics at the Swiss Federal Institute of Technology (ETH) which was the only study including at least some aspects of astronomy and astrophysics. “Looking at the nights sky is an experience touching everybody deeply inside, something common to all human beings independent to the language spoken by the individuals”. Deep-sky astrophotography is my passion.

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Perseus (1)