C/2007 F1 (LONEOS) is a hyperbolic comet discovered on March 19, 2007 as part as the Lowell Observatory Near Earth Object Search (LONEOS). The comet reached perihelion, or closest approach to the sun on October 28, 2007.
The comet reached 6th magnitude in October, making it easily visible in
binoculars, and just barely visible to the naked eye for observers in
the Northern Hemisphere, just after sunset in the west. It reached a
max brightness of magnitude 5 around perihelion, before starting to
slowly dim on its way out of the solar system. It continued to move
south in the sky and became visible to southern hemisphere comet
chasers in mid November.
The comet was also observed from both the STEREO spacecraft, first by STEREO-B on October 22 and then by STEREO-A for several days starting from October 28th as the comet had just passed perihelion and was receding from the Sun.
LONEOS 2007/f1 Expedition
On Saturday night, October 20th, 10/20/2007 Dave G. &
to Catawba Island State Parkin North western Ohio to shoot Comet
Loneos. We experienced a comedy of errors before getting all our
combined gear to play well together and begin capturing photons....
was using my Losmandy G-11 with the Meade 8" f/6.3 SCT and shooting
prime focus as well as shooting with my Olympus E-500 DSLR/w and Canon
30D DSLR. Dave G was using a Canon 30D with a 300mm lens, also.