NGC 2736
Sketch by Eiji Kato
Discovered in 1835 by John Herschel, this unusually straight segment of the Vela Supernova Remnant shock wave is sometimes called the Pencil Nebula. It lies about 815 light years away and is moving at about 180 kilometers per second.
Source: Wikipedia
Mr. Kato,
Beautiful drawing. I have not seen this one other than in photographs, but this is an object I hope to see someday.
Frank