Sh2-173 Phantom Mask Nebula
An interesting region in the contellation of Cassiopea. An object from the sharpless catalogue: sh2-173 named The Phantom Mask Nebula
Photo Details
Telescope: FSQ106EDX (530 mm) Takahashi
Camera: ST-8300M, Sbig Filter wheel, Baader 36mm round HLRGB filters
Mount: G11 GT Celestron branded
Guiding: Off-axis, Orion SS Autoguider
Exposure: Ha 16x20min RGB 7x8min each
When: September 2014
Other information: All taken in the city of Tarnów, Poland