English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

2006-08-12 21:21:02 · 14 answers · asked by Bigger is Better 1 in Science & Mathematics Astronomy & Space

14 answers

No, it is not true.

It is a hoax being circulated by e-mail,

Central to the hoax is the Baron Von Munchausen fairy story that Mars will look as big as our Moon. Poppycock!

The boax is based on a gross distortion of what happened on 27th August 2003 when Mars did make its closest approach in 60,000 years (see the CNN News story below).

People are so gullible, they believe what a complete stranger says and don't check the facts for themselves,

Which would you rather believe: an anonymous, unsolicited e-mail or the official NASA website?

I went to NASA's Kids Website which told me:

"View in 2006
Mars begins the year as a moderately bright orange star in the constellation Aries. It will grow fainter through the end of summer, when it will disappear in the Sun's glare. Mars will re-emerge in the morning sky in late December. In March, it will pass quite close to Aldebaran, the star that marks the “eye” of Taurus, the bull. Mars and Aldebaran will look like twins, with near-identical color and brightness."

You don't need to be a genius to work out that if it is getting fainter it is getting further away, and if it is disappearing into the sun's glare that can only be because it is on the far side of the sun from us i.e. Mars' position in its orbit is 180 degrees away from our position in our orbit and we are pretty well the maximum possible distance apart in August 2006.

If you know (and you can easily look this up) that the Martian Year is 1.88 Earth Years then again you don't have to be a genius to work out that the one time it WON'T be near to us is an exact number of twelvemonths since the last time it was close to us in August 2003, We will be in roughly the same place as we were 3 years ago, but Mars will only have done approx 1,6 orbits (1.5957 in fact) around the sun in that time, which explains why it is now on the far side of the sun and at about the farthest distance away it gets,

The absurd idea that Mars could possibly look the same size as the Moon can easily be refuted. At its closest approach it is 35 million miles away, whereas the Moon averages 238,000 miles away i.e. the distances are in ratio >140:1.

The diameters are in ratio 2:1 however (Mars has a diameter of 6780 kms and the Moon of 3474 kms) and so the areas of the discs they present to the naked eye are in ratio 4:1 (pi R^2: pi r^2, where R = 2r)

So, think about it: how can the number of arc seconds that Mars' disc presents to the naked eye possibly be the same as the number of arc seconds that the Moon's disc presents? If the disc is 4 times the size of the Moon's disc, Mars would have to be only four times as far away as the Moon, i.e. less than a million miles away, for that to happen.

and

(a) that never happens

(b) If it did happen, you'd soon know about it as giant tidal waves caused by Mars' gravity would sweep the Earth, making the Tsunamai look like a Sunday School picnic.

So not only can you look it up on reputable websites to discover this is nonsense, you can also work it out for yourself that it must be nonsense.

Much closer to the truth is that next March Mars will look about the same size and brightness as Aldebaran, in Taurus, the 13th brightest star in the sky, And they are both red. They will be a matched pair, but Mars and the Moon will never be one.

HERE IS THE STORY CNN CARRIED IN 2003

Earthlings revel in Mars close-up
Planetary approach is nearest in 60,000 years
By Richard Stenger
and Jeordan Legon
CNN
Thursday, August 28, 2003

The last time the red planet was this close to Earth 60,000 years ago, man lived in caves.

No wonder when Mars and Earth synchronized their orbits a few minutes before 6 a.m. EDT Wednesday -- bringing them closer to each other than at any time in recorded history -- thousands of people around the globe went outside to take a peek.

"Knowing that this is once in a lifetime that I can see another planet with the naked eye, yeah, it's great," said Rebecca Horton, a stargazer from Sydney, Australia.

Astronomers say Mars, five times closer now than six months ago, is about 34.6 million miles away, making it the brightest nighttime object except the moon.

"It is possible to get some fairly close encounters every few years," said amateur astronomer Paul Shallow. "It does come around, but not this close."

But with the far-away planet getting so close, some hopeful watchers felt gypped by Mother Nature.

In Oakland, California, where hundreds of space fans paid $11 to attend the Chabot Space & Science Center's "Mars Mania Costume Party," clouds rolled in along with night sky Tuesday. Mars was fogged out, and there were no refunds.

But the good news is that Mars will remain a stunning nighttime attraction for weeks. Most sky watchers can see the planet, presently in the constellation Aquarius, in the southeastern sky soon after sunset, high overhead during the midnight hours and in the southwestern sky before sunrise.

Backyard telescopes may coax features out of the reddish, orange blur, including dark, mottled streaks, which inspired scientists of past centuries to envision intricate canals and advanced Martian civilizations.

The rare configuration of 2003 has stoked renewed, albeit not as fanciful, interest in Mars, which on average cruises 50 million miles farther from the sun than Earth does.

About every 26 months, the two planets pass relatively close to one another, during periods now known as opposition.

What makes this one noteworthy is that Mars, which follows an extremely elliptical or egg-shaped path, is currently at it closest point to the sun during its orbit.

Those two conditions, along with a few obscure celestial variables, have produced an astronomical chance of a lifetime, or several lifetimes actually.

Mars won't pass closer to Earth until 2287, according to astronomers.

Besides awing the curious, the alignment has motivated numerous governments to dispatch missions to the red planet.

Taking advantage of the shorter trip distance, two U.S. and two European probes set off earlier this year, all to arrive at the end of the year.

"Mars fever has caught, not only for amateur astronomers, who are getting their best look at the planet ever and that we'll ever have in our life, but also for professionals, as you know, with the [NASA] Mars Rovers and other spacecraft that are en route," said David Eicher, editor of Astronomy magazine."

2006-08-12 23:35:37 · answer #1 · answered by Anonymous · 4 0

Mars Spectacular?
A story floating around the Internet this summer says that Mars will pass unusually close to Earth in late August, and will appear as large as the full Moon.
Sorry, but it's not true.

Mars actually made its closest pass to Earth in many centuries in August of 2003. It was quite bright then, but it still looked only like a bright star, and was nowhere near the size of the full Moon.

2006 is a poor year for viewing Mars. The planet put in a good showing in late 2005, but has been growing fainter throughout this year. In August, it is barely visible very low in the west for a few minutes in early evening, beginning perhaps 30 to 40 minutes after sunset. It looks like a faint star. It drops from sight by about an hour after sunset. Guess not**frown**

2006-08-13 04:30:06 · answer #2 · answered by tr2thhrt 5 · 1 0

In August 2006 Mars will not be visible, and will not be until about the middle of December and then only barely. New Years of 2005/2006 was the last clear viewing of Mars for 2006. It is farther away and is rising in the sun's glare during this period.

2006-08-13 04:32:28 · answer #3 · answered by karen p 1 · 1 0

Only as a shinning red dot. If you go on Mars Hoax.com, it will tell you that it is a hoax going around the internet. It will not be as big as the moon. If it were the gravitational pull would be so great that earth would feel great trauma. It will not be any different than it was Aug. 2003, when the same thing was being circulated. I fell for it then, but not now.

2006-08-13 04:50:08 · answer #4 · answered by shardf 5 · 1 0

You have to wait till August 27th to see if its true.
This kind of e-mail forwarded is in circulation.

2006-08-13 04:27:34 · answer #5 · answered by alexdsouza40 2 · 1 0

We got an email saying that Mars will be as big as the Moon on that date. We found out that it is a hoax.

2006-08-13 04:26:42 · answer #6 · answered by Anonymous · 1 0

yes it is true it is a rare event that is happening this year and won't take place again for a lifetime! it is just a rare timing thing of the way the planets are palced and we are just lucky to have it happen in our lifetime!

2006-08-13 04:27:06 · answer #7 · answered by Anonymous · 1 0

you can see mars pretty much every night.

2006-08-13 04:25:14 · answer #8 · answered by Kyle M 6 · 1 0

We shall see, nice photo hottie.

2006-08-13 04:26:41 · answer #9 · answered by Chris 4 · 1 0

There's nothing wrong trying. i think you're not gonna lose anything if it doesn't appear.

2006-08-13 05:12:38 · answer #10 · answered by veekay 1 · 0 0

fedest.com, questions and answers