(Click here to see high resolution version ~1.3MB)
Comet 17P/Holmes
RA:-- -- --, Dec:+-- -- --, mag: -.-, Size:-, Dist: - l.y.
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(Click here to see high resolution version ~1.3MB) |
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| Object: | Comet Holmes is a periodic comet, discovered by the British amateur astronomer Edwin Holmes 1892. It caused a stir during its 2007 return when it temporarily brightened by a factor of about half a million (from mag 17 to 2.8), in what was the largest known outburst by a comet, and became visible to the naked eye. It also briefly became the largest object in the solar system, as its coma (the tenuous dissipating dust ball around the comet) expanded to a diameter greater than that of the Sun. | |
| Exposure: | R: 5x60s, G: 5x60s, B: 5x60s L: 3x300s, R: 3x300s, G: 3x300s, B: 3x300s L: 4x300s, R: 4x300s, G: 4x300s, B: 4x300s | |
| Equipment: | Pentax 75 SDHF f/6.6 refractor. Art11002 CCD. Astronomic LRGB TypeIIc filters. | |
| Location: | 2nd & 14th Nov. & 10th Dec 2007 23:00 UT, Oxford UK. | |
| Processing: | Images sigma-masked stacked in MaximDL. | |