- Description: Sh2-157 - Nebulosity in Cassiopeia/Cepheus located near the Bubble
Nebula. The odd open cluster in the top left is NGC7510 in Cepheus, an 8th magnitude cluster of
60 stars in a grouping of 4 arc minutes. Left of center is a smaller cluster, Basel 3. Magnitude
8.5, 5 stars in a grouping of 5 arc minutes. Sh2-157 is sometimes known as the Lobster Claw nebula.
- Camera: SBIG ST-8XE at -20C
- Filter: Schuler 10nm Hydrogen-Alpha
- Scope: Takahashi FSQ-106N
- Mount: Losmandy G-11 Digital
- Exposure: 4 x 30 minutes
- Location: near Cayley, Alberta
- Date: September 23, 2005
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