The Owl Nebula - M97

The Owl Nebula - M97

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I decided to image M97 again to see how much more new details could be coaxed with a larger aperture, more sensitive camera, and longer total exposure. A 3nm narrow band Oxygen III filter was also employed to reveal an extremely faint outer bubble surrounding this expanding ball of stellar material located south-east of  Merak, one of the two stars in the Big Dipper that point to the North Star. A total exposure time of 12.6 hours was used for this image compared to 3.5 hours for an earlier image taken four years ago.  

Coordinates       :

11h 15' +54d 57'

Date Imaged       :

May 6, 2011

Lens       :

N16 f/4.5

Camera       :


Exposure       :

12.6 hours

Filter       :

Astrodon L:R:G:B:OIII 130:90:90:120:330

Mount       :

Losmandy Titan

Location       :

Stardust Observatory, Baguio