Probably most of the more active Deep Sky observers know IC410
in Auriga. Despite having only an IC number, it is pretty bright and easy with
an OIII Filter. At the edge of the nebula are two globules, which bear some
ressemblance to tadples with a bright rim oriented toward the central star
is a narrow band image by Richard Crisp.
... and the tadpoles in detail
left globule is the easier one.
always wanted to give these tadpoles a try for a visual observation, but
either forgot to take along a DSS printout or just didn't think of them,
when I had IC 410 in the eyepiece. Yesterday, I had a printout with me and
the observation was surprisingly easy. I was observing with 22", but under
pretty mediocre sky, maybe mag 5.5 at the city border of Freiburg. The
brighter one of the globules could be observed easily with UHC by averted
vision. Under more optimal conditions, this one is feasible also with much
smaller scopes. The OIII and H beta filters were not as helpful as UHC.
The brighter globule appeared as a small condensation with a small group
of three faint stars. The other globule was more difficult, but could be
observed later under better conditions.