Arc

• by nigel61

  Not sure what this is but there appears to be a arc at approx 225 degrees, it's quite feint. Is it an arc of gas?

  Posted August 30, 2015 1:55 PM

• by ElisabethB moderator

  Hi nigel61

  It could be a very faint spiral arm, or it could be an optical artifact (noise)

  Posted August 30, 2015 6:18 PM