Enchanted Skies


NGC 4725 Region (imaged near Fort Davis, Texas)

M81 & M82 Where to find M81 & M82


Object Information                                            Imaging Details

Galaxies M81 and M82 make a striking pairing high in the northern sky during the Spring. M81 is a bright spiral galaxy, appearing nearly face-on, while M82 (aka the Cigar Galaxy) is an irregular 'starburst' galaxy. Both are in Ursa Major.

I wanted to see how deep I could image M81/M82 using my Stellarview 115 triplet and a DSLR camera cooler. In particular, I wanted to see how well I could capture the Ha light coming from M82. So I did took several hours of Ha data as well as color data of the pair.

Clicking the above image will bring up a higher resolution image with a wider field of view. The linked image is shown about 25% of original size.


Stellarvue 115 fluorite triplet

Canon T2i (type 1 modified)
Astronomik EOS clip-in 12nm Ha filter.
Misc. Optics:

Color: 23 x 300 seconds @ iso 800.
Ha: 22 x 10-minutes @ iso 1600

With ED80 (side-by-side on G11 mount)
Images converted to tifs using Photoshop CS5. Nebulosity used to stack the images. Ha data combined with color data. Additional processing (curves, sharpening) with PS CS5.

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Enchanted Skies - Astrophotography by Rich Richins (all images copyright, Rich Richins)