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Ernst Sch | all galleries >> Galleries >> Astro Pictures * > Comet 17P Holmes 28 Oct
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28-OCT-2007 Ernst Sch

Comet 17P Holmes 28 Oct

Rümlang Observatory - Switzerland

28-OCT-2007 - 20:13 UTC - N47°26'22.3" / E8°31'28.1"
Distance more than 250 millon kilometers. Expansion speed of dust ball approx 1800 km/h.


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Comet 17P Holmes
Zeiss APO Refractor 1200/150mm with ScopeTronix 40mm MaxVue eyepiece and 1.6x Barlow addition.
Afocal with T-adapter coupling.
Camera settings: One single RAW-picture of 15sec exposure - F2.5 - ISO 100

Canon PowerShot G2
15s f/2.5 at 21.0mm iso100 full exif

other sizes: small medium original auto
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