Comet 17P/Holmes
In late 2007, the faint comet 17P/Holmes underwent a sudden outburst,
brightening a million times to naked-eye visibility as it passed through the
constellation of Perseus.
21-Nov-2007
After brightening explosively in October 2007, it's coma has begun to
expand so much that it's reflection is now more diffuse and is starting to
dim. Nevertheless, the comet is still a fine sight, and is show here passing
by the bright star Mirphak, the brightest star in the constellation of
Perseus.
Takahashi Sky 90 at f/4.5
SBIG STL-4020M (unguided)
Takahashi EM-200
Hutech LPS filter
Luminance: 30 x 2 minutes
RGB: 20 x 2 minutes
Processed with Maxim/DL and Photoshop CS3
Noel Carboni's Astronomy Tools
4-Nov-2007
For a few days, a slight tail formed from the envelope of surrounding
gas.
Takahashi Sky 90 at f/4.5
SBIG STL-4020M (unguided)
Takahashi EM-200
Hutech LPS filter
Luminance: 32 x 2 minutes
RGB: 5 x 1 minute
Processed with Maxim/DL and Photoshop CS3
29-Oct-2007
When comet 17P/Holmes first brightened to naked-eye visibility, it was
indistinguishable from a star without optical aid, and was so bright it
required extremely short exposures to prevent clipping.
Takahashi Sky 90 at f/4.5
SBIG STL-4020M (self-guide)
Takahashi EM-200
Hutech LPS filter
Luminance: 6x10s
RGB: 5x10s
Processed with Maxim/DL and Photoshop CS3