Schwassmann-Wachmann 1, Comet 29P/
A short-period comet with
an unusual, nearly circular orbit between Jupiter
and Saturn, which is prone to occasional, unexplained
outbursts in brightness of about 5 magnitudes (a factor of 100) over a few
days. It was discovered in 1927 by the German astronomers (Friedrich Carl)
Arnold Schwassmann (1870-1964) and Arthur Arno Wachmann (1902–1990).
| Spitzer Telescope image of Schwassmann-Wachmann