M81 and M82
Galactic Pair in Ursa Major
|Other Names/Objects||NGC3031 (M81) and NGC3034 (M82)|
|Optics||Takahashi TOA-150 f/7.33 triplet apochromatic refractor|
|Mount||Software Bisque Paramount ME II|
|Camera||FLI MicroLine KAI-11002-C at -25°C|
|Exposure||120 minutes (12 x 10 minutes)|
|Calibration||24 darks | 0 flats | 0 flat darks | 0 bias|
|Accessories||Takahashi 67 Field Flattener
Autoguided with SBIG ST-i camera and Takahashi FS-60 telescope
|Location||CaliforniaStars Observatory in Landers, California|
|Date||January 28, 2017|
M82 (left) and M81 (right) are two galaxies in Ursa Major. They present opposing views of galaxies; one edge-on and the other nearly face-on. Before the advent of large, modern telescopes and the measuring of Doppler shifts, galaxies such as these were thought to be nebula within our own galaxy. It turns out that these two galaxies are a little under 12 million light years from our own galaxy—fairly close by universal standards but far from being part of the Milky Way.
Processing: TheSkyX for acquisition. MaxIm DL Pro v6 for calibrate, Bayer CFA interpolation, register, and combine. Photoshop CC for curves, levels, sharpen, saturation, resize and JPG compression.
Read more on my SoCalAstroPhoto blog.
2400 x 1600 (~2.0 MB)