Diffuse area on the lower left side

• by drbmcclelland

  Is this a large gas cloud?

  Posted October 17, 2012 4:42 AM

• by StereoSpace

  More likely a small galaxy along the line of sight. Notice they're differently colored. One more whitish, one more yellowish. The more yellowish (center) is probably further away (is reddened) by light extinction of short (violet-blue) wavelengths by interstellar gas.

  Posted October 17, 2012 5:01 AM