Stacks Image 144

NGC 1491 HaRGB image

Stacks Image 145

NGC 1491 SIIHaOIII image

NGC 1491

About this object

NGC 1491 is a emission nebula in the Constellation Perseus. The above left image combines 10hrs worth of data taken through Red, Green, Blue and Hydrogen Alpha filters. The image of the same object on the right was taken through narrowband SII, Ha, and OIII filters and is a false color image with 19hrs worth of data. SII was mapped to Red, Ha was mapped to Green and OIII was mapped to blue.
Image Details

Optics: 10" Carbon Fiber Astrograph @ f5
Mount: Mountain Instruments MI 250
Camera: QSI 583
Filters: Astrodon 31mm 3nm Ha, SII, OIII, LRGB filters
Exposure Time: Red 90min, Green 90min, Blue 90min, Ha 360min, SII 360min, OIII 420min
Camera/Mount control: Maxim DL 4.56, CCD commander
Location: Stark Bayou Observatory, Ocean Springs, MS
Date: Jan 2011
Stacks Image 146
Stacks Image 147