Ursa Major
Published on Nov 18, 2015
No Description
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PRESENTATION OUTLINE
NICKNAME & HISTORY
- "The great bear"
- Listed by Ptolemy in the 2nd century
Photo by NASA Goddard Photo and Video
STARS IN URSA MAJOR
- Dubhe, Megrez
- Merak, Alioth
- Phecda, Alkaid
- Mizar
Dubhe is a orange giant and has 124 distance from earth. It's magnitude is 1.81 and it's color and surface tem. is KO. Merak is a white main seq. 79 distance from earth 2.34 mag. and A1 color & surface tem. Phecda is a white main seq. and distance from earth is 84. Mag. is 2.41 and color and surface tem. is AO. Megrez is a white main seq. distance from earth is 81 and 3.32 is the mag. color and surface tem. is A3. Alioth distance from earth is 81 mag. is 1.76 and color and surface tem. is A0. Alkaid is a blue main seq. distance from earth is 101 mag. is 1.85 and color and surface tem. is A1. Mizar is a white main seq. distance from earth is 78 mag. is 2.23 and color and surface tem. is A1.
Photo by Jram23
FASCINATING FACTS
- Third largest constellation
- Also reffered as the Big Dipper
- Occupies an area of 1280 sq. feet
Photo by Mary Vican
Untitled Slide
Best viewing (location)
Located in the second quadrant of the northern hemisphere and seen at latitudes between +90 and -30. You can see Ursa Major at 9:00 pm in the month of April
Photo by Nanagyei
Greek Myth
Ursa Major is identified with Callisto, a nymph that Zeus fell in love with. Zeus' wife, Hera, turned Callisto into a bear because Hera was jealous. Years later, Callisto met Zeus' son, Arcas. When Arcas was about to shoot Callisto, Zeus placed them both in the sky.
Photo by Daniel Peckham
OTHER AMAZING FEATURES
- Messier 81, Messier 82, Messier 97,
- Messier 101, Messier 108, Messier 109
- Meteor showers: Alpha Ursa Majoroids
- and Leonoids-Ursids
- There are about 50 galaxies
Photo by Abby Lanes
