μόλις πήρα το mail αυτο πέρσι έπαθα πλάκα απο την χαρά μου.
ήταν ένα mail που έλεγε ότι:
"O πλανήτης Άρης θα είναι ο ορατός στον ουρανό νύχτας αυτόν τον Αύγουστο.
-Θα φανεί τόσο μεγάλος όσο η Πανσέληνος στο γυμνό μάτι.
-Καλύτερη στιγμήνα το παρατηρήσετε θα είναι στις 27 Αυγούστου στις 12.30 τοβράδυ όταν οΆρης θα έρθει σε απόσταση 34.65Μ μίλια από τη γη.
-Να προσέξετε τον ουρανό στις 27 του Αυγούστου 12:30 AM.
-Θα μοιάσει σαν να έχει η γη 2 φεγγάρια.
-ΜΗΝ ΤΟ ΧΑΣΕΤΕ ΑΥΤΟ..... Η επόμενη φορά που ο Αρης θα έρθει τόσο κοντά θα είναι το 2287.
-ΣΗΜΕΙΩΣΗ: Μοιραστείτε το με τους φίλους σας δεδομένου ότι ΚΑΝΕΝΑΣ ΖΩΝΤΑΝΟΣ ΣΗΜΕΡΑ δέν θα ξαναδεί τέτοιο θέαμα"
δυστυχώς (λόγο άγνιας μάλλον είπα τότε :P ) δεν το είδα πέρσι κ είπα.. φτου να πάρει είμαι γκαντέμης!!
έλα μου ντε όμως που μου το έστειλαν πάλι κ σήμερα το mail αυτό.
ώπα ρε φίλε είπα πως γίνεται αυτο?
έτσι έκατσα κ το έψαξα το θέμα κ βρήκα τις εξής info:
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ΠΗΓΗ 1
απο http://www.snopes.com/science/mars.asp
Claim: The planet Mars will make a once-in-our-lifetimes, remarkably close approach to Earth on 27 August
Status: False
Examples:
[Collected via e-mail, July 2007]
*Two moons on 27 August*
27th Aug the Whole World is waiting for...*
Planet Mars will be the brightest in the night sky starting August.
It will look as large as the full moon to the naked eye. This will cultivate on Aug. 27 when Mars comes within 34.65M miles of earth. Be sure to watch the sky on Aug. 27 12:30 am. It will look like the earth has 2 moons. The next time Mars may come this close is in 2287.
Share this with your friends as NO ONE ALIVE TODAY will ever see it again.
[Collected on the Internet, 2003]
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 10 p.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 12:30 a.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. Share this with your children and grandchildren. NO ONE ALIVE TODAY WILL EVER SEE THIS AGAIN
Origins: Some things never go out of style, and this message may be one of them. It's yet another example of a widely-circulated e-mail containing information that was once true but which continues to be forwarded around year after year, long after the information it contains has become outdated.
Mars did make an extraordinarily close approach to Earth several years ago, culminating on 27 August 2003, when the red planet came within 35 million miles (or 56 million kilometers) of Earth, its nearest approach to us in almost 60,000 years. At that time, Mars appeared approximately 6 times larger and 85 times brighter in the sky than it ordinarily does. (The message quoted above was often reproduced with an unfortunate line break in the middle of the third sentence of the second paragraph, leaving some readers with the mistaken impression that Mars would "look as large as the full moon to the naked eye" and not realizing that the statement only applied to those viewing Mars through a telescope with 75-power magnification.)
Although Mars' proximity to Earth in August 2003 (referred to as a perihelic opposition) was a rare occurrence, the red planet comes almost as near to us every 15 to 17 years. To the unaided observer, Mars' appearance in August 2003 wasn't significantly larger or brighter than it is during those much more common intervals of closeness.
Mars had another close encounter with Earth in in 2005, but that occurrence took place in October (not August), and the red planet appeared about 20% smaller than it did during similar circumstances in 2003.
As Texas astronomer Torvald Hessel observed in a 2006 interview about the perennial "Mars Spectacular" message:
Q: What's the truth?
A: Mars gets close to Earth every two years. So, last year, Mars was very close. Three years ago, it was spectacularly close ... And right now, I'm sad to say, Mars is actually behind the Sun; we can't see it at all.
Q: How wide spread is this falsehood?
A: People get excited about it, start to send e-mail ... and every August we see this e-mail coming back and I get a lot of e-mails about it, of course.
(Although the 2007 version of this e-mail is commonly headed by the line "Two moons on 27 August," an amusing irony is that some parts of the world won't even see one moon the following day, as a total lunar eclipse is slated to occur on that date.)
Mars' next close approach to Earth will occur in December 2007, but even then it will still be about 55 million miles away from us, not nearly as close as it was in 2003 or 2005. Not until 2018 will our view of Mars be similar to the one that was available in 2003, and it won't be until the year 2287 that Mars will come closer to Earth than it did back in 2003.
The web site of the Students for the Exploration and Development of Space (SEDS) provides a chart displaying data about Mars Oppositions (past, present, and future), and the web site of the Hubble Heritage Project offers some nice composite telescope images from previous Mars near oppositions.
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ΠΗΓΗ 2
από την NASA
απο http://science.nasa.gov/headlines/y2005 ... rshoax.htm
και
http://science.nasa.gov/headlines/y2005 ... ngmars.htm
uly 7, 2005: Just when you thought it was safe to read your email....
There's a rumor about Mars going around the internet. Here are some snippets from a widely-circulated email message:
"The Red Planet is about to be spectacular."
"Earth is catching up with Mars [for] the closest approach between the two planets in recorded history."
"On August 27th . Mars will look as large as the full moon."
And finally, "NO ONE ALIVE TODAY WILL EVER SEE THIS AGAIN."
Only the first sentence is true. The Red Planet is about to be spectacular. The rest is a hoax.
Here are the facts: Earth and Mars are converging for a close encounter this year on October 30th at 0319 Universal Time. Distance: 69 million kilometers. To the unaided eye, Mars will look like a bright red star, a pinprick of light, certainly not as wide as the full Moon.
Disappointed? Don't be. If Mars did come close enough to rival the Moon, its gravity would alter Earth's orbit and raise terrible tides.
Sixty-nine million km is good. At that distance, Mars shines brighter than anything else in the sky except the Sun, the Moon and Venus. The visual magnitude of Mars on Oct. 30, 2005, will be -2.3. Even inattentive sky watchers will notice it, rising at sundown and soaring overhead at midnight.
http://science.nasa.gov/headlines/y2005 ... labins.jpg
You might remember another encounter with Mars, about two years ago, on August 27, 2003. That was the closest in recorded history, by a whisker, and millions of people watched as the distance between Mars and Earth shrunk to 56 million km. This October's encounter, at 69 million km, is similar. To casual observers, Mars will seem about as bright and beautiful in 2005 as it was in 2003.
Although closest approach is still months away, Mars is already conspicuous in the early morning. Before the sun comes up, it's the brightest object in the eastern sky, really eye-catching. If you have a telescope, even a small one, point it at Mars. You can see the bright icy South Polar Cap and strange dark markings on the planet's surface.
http://science.nasa.gov/headlines/y2005 ... soske1.jpg
Above: Painted green by a flashlight, astronomer Dennis Mammana of California points out Mars to onlookers on Aug. 26, 2003, the last time Mars was so close to Earth. Photo credit: Thad V'Soske.
One day people will walk among those dark markings, exploring and prospecting, possibly mining ice from the polar caps to supply their settlements. It's a key goal of NASA's Vision for Space Exploration: to return to the Moon, to visit Mars and to go beyond.
Every day the view improves. Mars is coming--and that's no hoax.
June 6, 2005: By the time you finish reading this sentence, you'll be 25 miles closer to the planet Mars.
Earth is racing toward Mars at a speed of 23,500 mph, which means the red planet is getting bigger and brighter by the minute. In October, when the two planets are closest together, Mars will outshine everything in the night sky except Venus and the Moon. (You're another 50 miles closer: keep reading!)
It's only June, now, but Mars is already eye-catching. You can see it early in the morning, rising before the sun in the eastern sky, shining almost twice as bright as a 1st-magnitude star. A sky map, below, shows where to find Mars on Wednesday morning, June 29th, when it appears pleasingly close to the crescent Moon.
http://science.nasa.gov/headlines/y2005 ... h_june.gif
Above: The Moon and Mars on June 29, 2005.
Why are we rushing toward Mars? It's simple orbital mechanics. Think of Earth and Mars as two runners on a circular race track, with lanes corresponding to planetary orbits. Earth, running fast on the inside lane, circles the course in 12 months. Mars, plodding along an outside lane, takes twice as long to go around. Every two years, approximately, Earth catches Mars from behind and laps it.
That's where we are now, approaching Mars from behind. Relative speed: 23,500 mph.
http://science.nasa.gov/headlines/y2005 ... n_med2.gif
We won't actually lap Mars until autumn, October 30th at 0319 Universal Time, to be exact. Only 43 million miles (69 million km) will separate us from Mars, then, compared to an average distance of about 140 million miles (225 million kilometers). It's a great time to send spacecraft there.
Right: The orbits of Earth and Mars.
Mindful of that, NASA plans to launch the Mars Reconnaissance Orbiter (MRO) on August 10th, 2005. Because it takes 6+ months to reach Mars, the best time to start the trip is a month or so before closest approach--thus, August. MRO will arrive in March 2006, enter orbit, and begin a 2-year mission to map the red planet in greater detail than ever before.
The spacecraft's high-resolution cameras will be able to discern objects, such as rocks and rovers and crashed Mars landers, less than 1 meter across. A radar sounder will probe for underground water while spectrometers map the distribution of surface minerals. Other instruments will monitor the atmosphere, teaching researchers back on Earth how to forecast martian weather. These are key elements in NASA's plan to eventually send humans to Mars. (For details, see the Vision for Space Exploration.)
http://mars.jpl.nasa.gov/mro/gallery/ar ... irise.html
Above: The HiRISE camera onboard the Mars Reconnaissance Orbiter has 5-times better resolution than cameras on other Mars orbiters and might be able to take pictures of the lost Mars Polar Lander.
he Mars rovers Spirit and Opportunity are already there. They arrived in January 2004 on the heels of another Earth-Mars close encounter in 2003. (Remember, this happens every two years.) The two robots were supposed to stop working months after they landed, worn down by wind, stuck in sand, or exhausted by too little solar power. Credit NASA engineering: Spirit and Opportunity are still rolling and, if they hold true to form, they'll be "alive" to see Mars Reconnaissance Orbiter when it gets there, a tiny point of light in the martian night sky, mapping the red planet for explorers of the future.
Back on Earth people are going to enjoy watching Mars swell and brighten in the months ahead. By mid-summer, amateur astronomers with backyard telescopes will be able to spot polar ice caps and dust storms and strange dark markings. By autumn, even the least attentive of your neighbors will be remarking on "that bright red thing in the sky."
Mark October 30th as the best day of all: Mars will rise at sunset, hang overhead at midnight, and "blaze forth against the dark background of space with a splendor that outshines Sirius and rivals the giant Jupiter himself." That's how astronomer Percival Lowell described a similar close encounter in the 19th century.
Can't wait? Don't. You can see Mars any clear morning this summer. We recommend Wednesday morning, June 29th. Mars and the fat crescent Moon are going to have a pleasing close encounter in the dawn sky. Look for them rising in the east around 4:30 AM; the sight will absolutely wake you up.
More good news: you're now 1000 miles closer to the planet Mars.
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ΠΗΓΗ 3
απο http://www.skyandtelescope.com/observin ... page=1&c=y
Mars at Its All-Time Finest
August 3, 2005
by Daniel M. Troiani
NOTE: THIS ARCHIVED ARTICLE IS FOR THE YEAR 2003. It's not enough to describe the 2003 apparition of Mars as unique. In late August, as if beckoning us to touch its enchanting, exotic shores, the red planet will reach magnitude -2.9 and will dominate the southern sky with its fiery coloration. Finally, on the night of August 26-27, Mars will be closer to Earth - if by only a little - than at any time in some 60,000 years (see "A Mars Record For The Ages").
When the broadcast entertainment industry awakens to this remarkable fact, the airwaves will be filled with replays of classic movies like The War of the Worlds and the 1938 radio hoax staged by Orson Welles. A rush not seen since the 1986 visit of Halley's Comet could overwhelm the telescope market. The event is almost a certainty to fire the public's imagination as few other astronomical events can.
But amateur astronomers already know that Mars is always a telescopic challenge. Despite its remarkable proximity this time, Mars's features will be more elusive than its next-door-neighbor status would suggest. Faced with a public that's clamoring for views at summer star parties, inexperienced observers will have a hard time impressing their audience. For Mars, an angular extent of 25.1" is as good as it gets, but that's barely more than half the apparent diameter of Jupiter.
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.
http://media.skyandtelescope.com/images ... iman_m.jpg
On August 26-27, 2003 - the night of Mars's closest approach to Earth since prehistoric times - Mars will present this face to viewers in the Americas (around 12:40 a.m. Pacific Daylight Time, 3:40 a.m. EDT). This computer graphic by Ralph Aeschliman includes the albedo markings that ground-based telescopic observers typically see. It also shows some surface relief, like the huge Valles Marineris canyon and neighboring
volcanoes. North is up.
Courtesy Ralph Aeschliman.
με άλλα λόγια το mail ειναι fake μάγκες
if come across it ignore it
