Close Encounters Of The Mars Kind 153
Lab_rat0 writes "Never again in our lifetimes will the Red Planet be so spectacular!
This month and next, Earth is catching up with Mars, an encounter that will culminate in the closest approach between the two planets in
recorded history. This article at EliteGeek has more details.
According to Agg over at OCAU, this is probably the reason for all the Mars probes launched over the last few months."
Mirror (Score:5, Informative)
Text (Score:5, Informative)
This month and next, Earth is catching up with Mars, 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.
The encounter will culminate on August 27th when Mars comes to within 34,649,589
miles 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, Mars will rise in the east at 10 p.m. and reach its azimuth at about 3 a.m.
But 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 12:30 a.m.
That's pretty convenient when it comes to seeing something that no human 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.
A 350 million buck Mars research grant coming (Score:0, Informative)
Re:Does this have a practical purpose? (Score:3, Informative)
More details (Score:5, Informative)
Space.com [space.com]
abc.net.au [abc.net.au]
Telescopes-Astronomy.com [telescopes...omy.com.au] - lots of details about suitable telescopes etc.
As an aside, about an earlier event fromThe Universe Today [universetoday.com]:
A rare astronomical event will occur in May 1999- Mars will be the closest it ever gets, only 52.8 million miles. In addition, the Red Planet is in opposition, which means its face is completely lit up by the Sun. Amateur astronomers will be able to see normally obscure features like the polar caps and canyons.
Maps of Mars, including dust storm (Score:5, Informative)
For global views of Mars check here [nasa.gov], however at this time of year (August) Mars is enveloped in planet wide dust storms, so the view is going to be obfuscated by all that red grit...if you want to check out before and during storm pics then click here [nasa.gov].
many more pics available from the Mars Global Surveyor: Mars Orbiter Camera (MOC)here [nasa.gov].
You can simulate this event in Celestia (Score:5, Informative)
1 AU = 149,597,870.691 km
0.373 AU = 55800005 km
0.410 AU = 61335126 km
The values seem to be slightly off (by around 1%) when compared to the article's shortest distance, from the approximated planetary orbits.
I've seen it (Score:5, Informative)
In fact, although this is supposed to be the closest opposition for maybe the past 60,000 years, the low elevation means it's not really such a great observation opportunity for astronomers in the northern hemisphere. I was just about able to make out the southern polar cap and some blurred greyish surface features in the southern hemisphere.
If you live further South though, there should be some really spectacular views with Mars almost overhead. And it's so bright that you don't need a large telescope - just a good one. And an equatorial mount is a must, because the damn thing moves so fast.
for those of us without telescopes or probes... (Score:5, Informative)
And for those of us with OSX, there's a macosxhints article [macosxhints.com] that helps you rotate your desktop pic with the APotD
Re:Probably? (Score:3, Informative)
2xUS, 1 European & 1 Japanese probe.
Re:You can simulate this event in Celestia (Score:5, Informative)
BTW, the RH8.0 sources build fine on RH9.
The Power of /. (Score:3, Informative)
Re:Probably? (Score:3, Informative)
Telescope + Linux + Mars = KStars (Score:1, Informative)
Here is a screenshot [kde.org] showing KStars tracking the moon.
Re:Text (Score:5, Informative)
This from Sky & Telescope: 'Mars becomes almost this large every 15 or 17 years -- whenever it passes closest to Earth (near opposition) within a few weeks of the date it is also nearest the Sun (perihelion). For example, in August 1971 the disk became as large as 24.9", and in September 1988 it reached 23.8". Less-ideal views come at intervals of about 2 years 2 months, as in May 1999 when it reached 16.2", and in June 2001 when it attained 20.8". Putting August 2003 in perspective, this is one of five chances (at most) in your entire lifetime that you'll see Mars so clearly.'
So this month Mars will appear some 0.21 arc-seconds larger than it did in August 1971. This is really not enough for the human eye to make a distinction. That said, you really ought to take advantage of this opposition. I know that I will.
Clear Skies
STB
Mars Society Interview (Score:3, Informative)
Mars will come within 2,400 miles (Score:3, Informative)
Starry Night - Mars Encounter Program (Score:4, Informative)
Runs on osX and win.
http://www.starrynight.com/MarsEncounter/
Re:Bad Joke Alert (Score:4, Informative)