M51

Whirlpool Galaxy

Object Info

Type

Spiral Galaxy

Constellation

Canes Venatici

Distance

37,000,000 ly

Date

March 20, 2015

Location

Little Blair Valley, Anza-Borrego Desert, CA

Exposure

Lum 6x15 (bin 1x1), R 3x10, G 3x10, B 3x10 (bin 2x2)

Optics

DSI RC10C Corrected RC Astrograph

Focal Length

1867mm @f/7.3

Mount

Astro-Physics 900GTO

Camera

FLI ML-6303E

Focuser

Built-in Secondary Focuser

Filters

FLI CFW2-7, Astrodon Gen 2 LRGB

Software

Maxim DL, CCDStack, Photoshop