May 31, 2001
Troy, N.Y. — Earth and Mars are converging at a rate of
22,000 miles per hour, and their closest encounter, in June,
will present amateur astronomers with a rare opportunity to
view the Red Planet in exquisite detail.
On June 21, just 42.3 million miles will separate the Earth
and Mars — their nearest approach in 12 years. You won’t need a
telescope to see Mars, which by early June will already
outshine everything except Venus, the Moon, and the Sun.
Nicolle Zellner, a graduate student in astronomy and director
of public observing at the Hirsch Observatory at Rensselaer,
offers the following viewing suggestions:
* Mars rises at sunset and sets at sunrise.
* Get away from the light pollution of the cities. Find a
dark, open field with few trees obscuring the horizon, and look
south.
* If weather permits, Capital Region stargazers can observe
the Red Planet low in the sky, about 21 degrees above the
southern horizon.
* With a telescope, you should be able to discern some
features of the Martian landscape, such as the southern polar
cap and Syrtis Major, a large, dark, sandy region near the
equator.
* To the naked eye, Mars will appear as a bright red dot.
Venus, the second-brightest object in the night sky, rises in
the east about 90 minutes before sunrise, and remains low in
the sky.
* With binoculars Mars will resemble a shining red disk.
Mars will grow brighter as it approaches opposition on June 13
— the date when Earth and Mars are aligned on the same side of
the Sun, an arrangement that occurs every 26 months.
Call or e-mail Zellner at (518) 276-6763 or zellnn@rpi.edu,
for Hirsch Observatory hours of operation.
Contact: Patrick Kurp
Phone: (518) 276-6531
E-mail: N/A