Mars is Coming!
Mars Nears for Best Viewing in Years
By Joe Rao,
Posted: 2007-09-30 10:43:46
Filed Under: Science News
(Sept. 28) - Mars is coming!
You've probably heard that line before - no doubt fairly recently, thanks to a bogus e-mail that unfortunately received wide circulation on the Internet this summer with promises of Mars being as big as the full moon.
NASA and Hubble Heritage Team / AP Mars is shown in an incredibly sharp 2001 photo made from the Hubble Space Telescope. On Wednesday, the planet will appear with a yellow-orange tint seven degrees above and to the right of the moon.
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But this fact is absolutely true: Mars, the only planet whose surface we can see in any detail from the Earth, is now moving toward the best viewing position it will provide to us until the year 2014. Planet watchers have already begun readying their telescopes.
If you haven't seen it, it will be well worth looking for the red planet next week, even though you'll have to wait until after midnight to see it well.
Mars is currently midway between the zodiacal constellations of Taurus, the Bull and Gemini, the Twins and during this week it will rise shortly before 11 p.m. local daylight time. There is certainly no mistaking it once it comes up over the east-northeast horizon. Presently shining like a pumpkin-hued, zero magnitude star, Mars is currently tied for fifth place (with Vega) among the 21 brightest stars.
But as it continues to approach our Earth in the coming weeks and months, Mars will only be getting brighter: it will surpass Sirius, the brightest star in the sky by Dec. 9 and during the latter half of December it will even almost match Jupiter in brilliance.
Late next Wednesday night (or more precisely, early on Thursday morning), Mars will hover about 7-degrees above and to the right of the last quarter moon as they rise above the east-northeast horizon (your clenched fist held at arm's length is roughly 10-degrees in width). As you will see for yourself, the so-called "Red Planet" actually will appear closer to a yellow-orange tint - the same color of a dry desert under a high sun.
NASA / AP Galaxies in deep space are captured in a photograph by the Hubble Space Telescope in 2005. Scientists announced last month that they found a void in the universe that's far bigger than they ever imagined.
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How close?
Every 26 months, or so, Earth makes a close approach to Mars, as our smaller, swifter orbit "overtakes" Mars around the sun. Because both the orbits of Mars and Earth are mildly elliptical, some close approaches between the two planets are closer than others.
This current apparition of Mars will be nowhere near as spectacular as the oft-referred approach of August 2003 when the planet came closer to Earth than it had in nearly 60,000-years.
Rather, on this upcoming occasion, Mars will come closest to Earth on the evening of December 18th (at around 6:46 p.m. Eastern Standard Time).
The planet will then lie 54.8 million miles (88.2 million kilometers) from Earth as measured from center to center. Mars will arrive at opposition to the sun (rising at sunset, setting at sunrise) six days later on Christmas Eve, December 24th.
How big?
That recent Martian e-mail message - a hyperbole which was widely circulated for a fourth consecutive year - lead people to believe, with liberal use of exclamation marks, that on Aug. 27, Mars would appear as bright as (or as large as) that night's full moon in the night sky. The subject header urged viewers to prepare to view "Two Full Moons."
It was amazing (and a little disturbing) to see just how many people actually believed that Mars could loom so large in our sky. But the truth is that even when at its absolute closest possible approach to Earth, Mars can appear no larger than 1/72 as big as the moon; to the unaided eye it would appear as nothing more than an extremely bright, non-twinkling star.
By Joe Rao,
Posted: 2007-09-30 10:43:46
Filed Under: Science News
(Sept. 28) - Mars is coming!
You've probably heard that line before - no doubt fairly recently, thanks to a bogus e-mail that unfortunately received wide circulation on the Internet this summer with promises of Mars being as big as the full moon.
NASA and Hubble Heritage Team / AP Mars is shown in an incredibly sharp 2001 photo made from the Hubble Space Telescope. On Wednesday, the planet will appear with a yellow-orange tint seven degrees above and to the right of the moon.
1 of 10
But this fact is absolutely true: Mars, the only planet whose surface we can see in any detail from the Earth, is now moving toward the best viewing position it will provide to us until the year 2014. Planet watchers have already begun readying their telescopes.
If you haven't seen it, it will be well worth looking for the red planet next week, even though you'll have to wait until after midnight to see it well.
Mars is currently midway between the zodiacal constellations of Taurus, the Bull and Gemini, the Twins and during this week it will rise shortly before 11 p.m. local daylight time. There is certainly no mistaking it once it comes up over the east-northeast horizon. Presently shining like a pumpkin-hued, zero magnitude star, Mars is currently tied for fifth place (with Vega) among the 21 brightest stars.
But as it continues to approach our Earth in the coming weeks and months, Mars will only be getting brighter: it will surpass Sirius, the brightest star in the sky by Dec. 9 and during the latter half of December it will even almost match Jupiter in brilliance.
Late next Wednesday night (or more precisely, early on Thursday morning), Mars will hover about 7-degrees above and to the right of the last quarter moon as they rise above the east-northeast horizon (your clenched fist held at arm's length is roughly 10-degrees in width). As you will see for yourself, the so-called "Red Planet" actually will appear closer to a yellow-orange tint - the same color of a dry desert under a high sun.
NASA / AP Galaxies in deep space are captured in a photograph by the Hubble Space Telescope in 2005. Scientists announced last month that they found a void in the universe that's far bigger than they ever imagined.
1 of 11
How close?
Every 26 months, or so, Earth makes a close approach to Mars, as our smaller, swifter orbit "overtakes" Mars around the sun. Because both the orbits of Mars and Earth are mildly elliptical, some close approaches between the two planets are closer than others.
This current apparition of Mars will be nowhere near as spectacular as the oft-referred approach of August 2003 when the planet came closer to Earth than it had in nearly 60,000-years.
Rather, on this upcoming occasion, Mars will come closest to Earth on the evening of December 18th (at around 6:46 p.m. Eastern Standard Time).
The planet will then lie 54.8 million miles (88.2 million kilometers) from Earth as measured from center to center. Mars will arrive at opposition to the sun (rising at sunset, setting at sunrise) six days later on Christmas Eve, December 24th.
How big?
That recent Martian e-mail message - a hyperbole which was widely circulated for a fourth consecutive year - lead people to believe, with liberal use of exclamation marks, that on Aug. 27, Mars would appear as bright as (or as large as) that night's full moon in the night sky. The subject header urged viewers to prepare to view "Two Full Moons."
It was amazing (and a little disturbing) to see just how many people actually believed that Mars could loom so large in our sky. But the truth is that even when at its absolute closest possible approach to Earth, Mars can appear no larger than 1/72 as big as the moon; to the unaided eye it would appear as nothing more than an extremely bright, non-twinkling star.