Emily Berkson Dean Salaman

Дата канвертавання24.04.2016
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Ross Dubois

Emily Berkson

Dean Salaman

Your Telescope Operator and Guides
Thank you for joining us this evening! We hope to see you again sometime on Kitt Peak!

Kitt Peak Nightly Observing Program

Splendors of the Universe on YOUR Night!

Iota (ι) Cancri is a binary star in the constellation Cancer, the crab. The brighter star is a pale yellow giant, and the fainter star is smaller and bluish-white. This pair is about 300 light-years away and the stars are almost 3000 astronomical units apart.

Betelgeuse and Rigel: These two stars appear to be the same brightness, but at drastically different in size and color. Betelgeuse is over 1000 times wider than the Sun and a cold, red star. Whereas Rigel is only 70 times the Sun’s width but an extremely hot blue star.
Betelgeuse and Rigel are 640 and 860 light years away, respectively, and allow us to see how brightness is related to size and temperature.

"Double Cluster" (NGC 884 and NGC 869): These two star clusters are a treat for binoculars and telescope alike. Each is a congregation of many hundred stars around 70 light years in diameter. These clusters are between 5000 to 7000 light years away.

M44: The "Beehive Cluster." A large, bright, diffuse open star cluster containing about 400 stars. It lies fairly close at a distance of almost 600 lightyears away. Another nickname: "Praesepe."

NGC 869: at about 7,500 light years away, NGC 869 is actually one part of the Double Cluster an open star cluster - a pair of binoculars allows us the chance to see this cluster with its twin (called NGC 884). This cluster, when viewed through a telescope has often been reported as looking like a Cyclops.

M45: The Pleiades Star Cluster. A bright, nearby star cluster in the last stages of star formation. It has six to seven bright stars along with hundreds of fainter stars. It lies about 380 lightyears away and is around 100 million years old.

NGC 1851: This globular cluster is a bit more distant than other globular star clusters are in the Milky Way, at almost 55,000 light-years away. Globular clusters are some of the oldest things in the universe, usually 11 billion years old!

M1: The Crab Nebula The explosion that created this nebula was seen by Chinese astronomers in 1054 A.D. This explosion was bright enough to be seen in the daytime for almost a month. The nebula is 10 lightyears in diameter and is expanding at the rate of 1,800 km per second.

M42: The Great Orion Nebula. This is a region of star formation about 1,500 ly away. It is 30 ly across and contains enough material to make 10,000 stars the size of our sun.

M31: The Andromeda Galaxy, our nearest major galactic neighbor. It is a spiral galaxy, lies 2,200,000 lightyears away and has a diameter of 180,000 lightyears. This galaxy contains as much material as 300 billion suns.

M65: A spiral galaxy lying about 35 million ly away. With only 50 billion suns, it is smaller than the Milky Way. It is one of three galaxies in a small group.

M66: A spiral galaxy, one of three closely related galaxies (M65 and NGC 3628 are the others). M66 is a stones throw (180,000 lightyears) from M65.


Venus, the second planet, is the brightest natural object in the sky other than the Sun and Moon and is often erroneously called the “morning star” or “evening star.” It is completely wrapped in sulfuric acid clouds and its surface is hot enough to melt lead

Jupiter is the largest planet in the Solar System, a “gas giant” 11 Earth-diameters across. Its atmosphere contains the Great Red Spot, a long-lived storm larger than Earth. The 4 large Galilean satellites and at least 62 smaller moons orbit Jupiter.

Uranus, the seventh planet from the Sun, was discovered by Sir William Herschel in 1781. It has a dark set of rings and at least 27 moons. Uranus's axis of rotation is almost 90 degrees from those of the other planets, as if Uranus has been tipped onto its side.

Mars, the red planet, has a thin carbon dioxide atmosphere, clouds, dust storms, and polar caps made of dry ice. Images of dry riverbeds from orbiting spacecraft show us that liquid water once flowed on the Martian surface.

Satellites: Human technology! There are almost 10,000 of these in Low Earth Orbit (we can't see the higher ones). We see these little "moving stars" because they reflect sunlight.

During the late 1990's Motorola launched many tens of communication satellites into orbit around Earth. Today, they are most noted not for their intended purpose but instead for their ability to reflect sunlight. Shiny antennae briefly (10

The web page for the program in which you just participated is http://www.noao.edu/outreach/nop.

Most of the above images were taken as part of the all-night observing program.

For more information on this unique experience please visit: http://www.noao.edu/outreach/aop

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