November 8, 2011

SH2-261 (Nov. 3, 2011)

This nebula in Orion is also called Lower's Nebula.  Apparently Lower was a father-son team who recorded the nebula on photographic plates in 1939.  See here.  The two were accomplished amateur astronomers and innovative astrophotographers.

This is just the H-alpha data.  I'd like to gather other colors as well.  For now, though, it's interesting to see.  The Nebula covers an area larger than the apparent size of the full moon.

Telescope: Orion 120ST f/5 Achromat w/WO ff/fr 0.8 II (so effectively at f/4)
Camera & Exposure: Atik 16, 14x15'
Filter: Astronomik 12nm H-alpha
Guiding: Borg 50mm, Meade DSI Pro, PHD
Mount: Takahashi NJP
Software: Nebulosity, Maxim DL, Photoshop CS3
Location: The Woodlands, TX

2 comments:

Phil said...

Interesting and obscure. Nicely captured, Val!

Polaris B said...

Thanks, Phil! I'm not sure why this one is not better known. It's fairly bright.