M104 or NGC 4594 is a mag 8 (visual) edge-on galaxy in southern Virgo. It is estimated at
50 million light years distance and is commonly known as the Sombrero Galaxy.
It was added to William Herschel's catalog in 1781 after the original list was published. It
has the trademark dark rim of dust, with large pronounced bulges in the center.
Imaging of this object is difficult for us in the North at its -11.5 degrees declination, and my
images were made at a maximum altitude of 37 degrees above the horizon. This means the
scope is looking through a lot of air and tubulence.
Date: Apr 13,16 2008
Location: New Ringgold PA
Optics: Meade LX200R 12 inch at f/10
Mount: Paramount ME
Camera: SBIG ST-8XME / CFW-8
Guiding: ST-8XME integral guiding chip controlled by Maxim CCD
Exposure: LRGB: Luminance: 18x10 minutes unbinned; RGB: 6 each binned 2x2 - 8 min
for R,G, and 9 min for B.
Processing: Image acquisition using CCD Autopilot. Initial processing was done using
Maxim DL with subsequent processing with Photoshop.