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17P/Holmes comet outburst. Day 1.
Unique sight! Very faint comet suddenly brightened from
magnitude ~17m up to brilliant 2.5m (for about one
million times!), and became perfectly visible by unaided eye even in
light-polluted cities. And by the happy coincidence, comet was in the coverage
sector of my balcony! 8-) Weather conditions wasn't good, but i've
successed to catch several openings in the clouds.
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Optics |
Mizar TAL-1
(4.4" Newton F=800mm 1:7.3) |
Exposure Details |
HDR commposition of
three frames (15x1sec, 11x4sec and one 20-minutes expositions
@ISO100). 20-min frame was autiguided by cometary core. |
Mount |
EQ6 PRO
SynScan equatorial mount. |
Camera/Guider |
Canon 350D
(modified with Baader IR-cut filter.), Guider camera is QHY6 CCD. |
Filter |
none |
Date |
Oct 24, 2007, 18:15(UTC) |
Location |
Center of 300k pop.
town. |
©2000-2007
All images, text and
software are copyright Igor Chekalin
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