Instrument

Takahashi FSQ-106ED @ f/5.0 (530 mm F.L.) Captured at 2.1 arcsec/pixel.  Shown at 3.77 and 8.62 arcsec/pixel.

Mount

Losmandy G11 with Gemini L4 v1.0

Camera

SBIG STF-8300M Self Guiding Package w/ mono ST-i, using an AstroDon 5nm Ha filter.

Acquisition Data

9/19/2015 & 11/10/2015  Chino Valley, AZ

Exposure

Ha   465 min. (31 x 15 min.)  

Software

• CCDSoft, CCDStack, PixInsight & Photoshop CS6.

• CCDStack to calibrate the sub exposures.

• PixInsight processing includes registering and stacking,  gradient removal and non-linear stretching with HistogramTransformation.

• PhotoShop for the final touch up.

• Click here for the RGB image

Comment

North is to the top.

Sh2-129, also known as the Flying Bat Nebula, is in the constellation Cepheus at a distance of about 2,300 light years. The emission nebula is quite large; this image shows about one half of it.