IC1318 Bi-Color (Summer 2015)

The Ha [+NII] signal is overwelming in this area of the sky, but there is also prominent SII and some (less) OIII, so I mapped SII (and some OIII) to blue, Ha to red, and created a synthetic green channel to achieve this bi-color image.  The effect is to show Ha in red contrasted with the weaker SII signal.

Telescope: Astro-Tech AT111EDT and William Optics AFR-IV (eff. f/5.6)
Camera and Exposure: SXVF-H9 (Ha [+NII]: 20x1200"; OIII: 16x1200"; SII: 21x1200"); Alnitak Flat-man flats
Filter(s): Astronomik 6nm NB
Guiding: SX Lodestar and SX OAG
Mount: Takahashi NJP
Software: Nebulosity, PHD, SkySafari, Maxim DL, Registar, Photoshop CS3
Location: The Woodlands, TX