[Clo] Mars

[tiloup (mario)]

Merçi Paul
J'ai pris en notes
----- Original Message ----- 
From: "Godin, Paul" <GodinP at navcanada.ca>
To: "Clo-gatineau" <clo at linux-gatineau.org>
Sent: Tuesday, May 31, 2005 12:43 PM
Subject: [Clo] Mars


> C'est Anglo et pas Linux mais a voir en Aout
>
>
> MARS SPECTACULAR!
>
> The Red Planet is about to be spectacular! This month and next, Earth is 
> catching up with Mars in an encounter that will culminate in the closest
> approach between the two planets in recorded history. The next time Mars 
> may come this close is in 2287. Due to the way Jupiter's gravity tugs on 
> Mars and perturbs its orbit, astronomers can only be certain that Mars has 
> not come this close to Earth in the Last 5,000 years, but it may be as 
> long as 60,000 years before it happens again.
>
> The encounter will culminate on August 27th when Mars comes to within 
> 34,649,589 miles of Earth and will be (next to the moon) the brightest 
> object in the night sky. It will attain a magnitude of -2.9 and will 
> appear 25.11 arc seconds wide. At a modest 75-power magnification
>
> Mars will look as large as the full moon to the naked eye. Mars will be 
> easy to spot. At the beginning of August it will rise in the east at 
> 10p.m. and
> reach its azimuth at about 3 a.m.
>
> By the end of August when the two planets are closest, Mars will rise at 
> nightfall and reach its highest point in the sky at 12:30a.m. That's 
> pretty convenient to see something that no human being has seen in 
> recorded history. So, mark your calendar at the beginning of August to see 
> Mars grow progressively brighter and brighter throughout the month.
>
>
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