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Transcript of Andromeda Constellation
Andromeda Andromeda Mysteries and Facts
•Figure of Greek mythology
•Daughter of Cassiopeia and Cepheus (resides in the same region of the sky)
•Her mother boasted about her beauty, this angered the God Poseidon and he punished her mother, by sacrificing Andromeda to a sea monster known as Cetus, she was saved Perseus, her future husband
•She is the great grandmother of Hercules Andromeda
Galaxy The Andromeda constellation is connected to the Pegasus constellation through the star Alpheratz. THE MYTH Alpheratz NGC 7662 Mirach Messier 32 Andromeda Galaxy Spiral Galaxy Located 2.5 Million light years away Largest galaxy in our local group Set to collide with the Milky Way galaxy in 4.5 billion years, but it will take another 2 billion years to fully merge in to a elliptical galaxy Farthest object visible to the naked eye Apparent Magnitude of 3.4 Contains 1 trillion stars First mentioned in 964 by astronomer Abd al-Rahman al-Sufi Simon Marius, a German astrologer saw and described it in 1612 with the use of a telescope Messier 31 NGC 224 200 - 400 billion more stars than the Milky Way Location Alpheratz Sirrah, Alpha Andromeda Binary Star Brightest star in constellation 97 Light years from Earth Apparent Magnitude of 2.6, luminosity 2000 times greater than the Sun Classified as a hot blue star, B8 sub giant High content of mercury and magnesium Brighter star Orbit each other with a period of 96.7 days Companion
Star 3.6 solar masses Temperature of 13,800 K 10 times the luminosity of the Sun The binary star system was discovered by William Herschel in1781,with the use of a Newtonian telescope Brightest mercury manganese star known Mirach Beta Andromeda Classified as a M0 III, red giant 200 light years from Earth 1900 times more luminous than the Sun Apparent Magnitude of 2.05 Temperature of 3,842 K
The star has a "ghost", (the galaxy NGC 404). This galaxy looks fuzzy in telescopes due to Mirach's brightness Star NGC 7662 The Blue Snowball Nebula , Cadwell 22 Location Planetary Nebula Has a faint bluish dwarf star with a surrounding blue disk at nebula's center Distance of 5,600 light years from Earth Diameter of 0.8 light years or 50,000 Astronomical units The nebula is visible with the use of a small telescope Discovered by William Herschel on October 6th, 1784 Apparent Magnitude of 8.3 Appears blue-green Messier 32 Le Gentil, NGC 221 Dwarf Elliptical Galaxy Location 2.65 million light years away First elliptical galaxy discovered Satellite of Andromeda Galaxy Suspected to be larger but, collided with Andromeda Galaxy No new star formation Supermassive black hole at the center of Galaxy Discovered by Astronomer Guillaume Le Gentil in 1749 Apparent Magnitude of 8.1 Right ascension 23h 25m 54s
Declination +42° 32′ 6″ Right ascension 00h 08m 23.2586s
Declination +29° 05′ 25.555″ Location Location Right ascension 01h 09m 43.92388s
Declination +35° 37 14.0075 Right ascension 00h 42m 41.8s
Declination +40° 51 55 Right ascension 00h 42m 44.3s
Declination +41° 16′ 9″ First mentioned in the Alfonsine Tables in 1521 as super miza The central object in the Andromeda Galaxy is a supermassive black hole with a mass of 30 times the Sun The meteor shower Andromedids radiated from the constellation in the 19th century. They are the result of debris from Biela's Comet in 1772 The activity halted during the 20th century until 2011 when they reappeared, they are expected to return in 2018 and 2032 The known photograph of a meteor occurred on the The November 27, 1885 shower Andromeda Galaxy Mirach Alpheratz Messier 32 NGC 7662 The Basics Andromeda is most vibrant in the fall, becoming visible in the northern hemisphere from June through to February Neighbouring Constellations:
Cassiopeia, Lacerta, Pegasus, Perseus, Pisces and Triangulum In 1st quadrant of the northern hemisphere, it is located between latitudes of +90º and -40º Right ascension is between 22h 57.5m and 2h 39.3m Has an area of 722 square degrees Declination is between 53.19° and 21.68° Takes up 1.75% of the sky 19th largest constellation