Comet ISON in the
September 16, 2013
Lens: 12.5" f/5 Home bult Newtonian
Platform: Astrophysics AP1200
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing 7/10, Transparency 7/10
Outside Temperature: 55F
Processing Tools: Maxim DL, Photoshop CS2
HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS
GLOBULARS OPEN CLUST PLANETARIES LINKS
at mag 12.5, this brightening comet is on its way in to the inner
solar system, for a very close encounter with the Sun on November
25th. The maximum brightness is questionable at this time, some
predict naked eye brightness, others around magnitude 8 which
is probably more realistic until perihelion.
The comet is very
low in the east right now, barely clearing the trees and east
wall of the observatory in Payson. When I started this exposure,
half the aperture was occulted by the wall. Sunrise was coming
and we continued shooting until just past 5am, where the sky
becomes too bright from twilight.