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M100 is a grand design spiral galaxy, similar to that of the Milky Way, and can be seen on a tilt that appears face-on on Earth. A grand design spiral galaxy is an object with well defined spiral arms. M100 is the brightest galaxy out of the 2,500 in the Virgo Cluster and can be seen through something as small as binoculars. The messier object contains more that 100 billion stars. One is able to know the magnitude of the object once they are aware that the distance to this object is over 56 million light years away. M100 holds some important stars in its galaxy; the "Cepheid variable" star has been know to determine how quickly the universe is expanding due to its patterns in blinking.

M100's physical attributes make it extremely appealing. The galaxy is about five arc minutes a crossed, with a mass of 160 billion suns. The knots in the spiraling arms are made up of large gas clouds or newly formed star clusters. This galaxy contains many young, bright stars that contribute to the visual brightness of the object. The core of the object appears bright yellow, with the arms, made up of different gases, appearing blue. There are five other galaxies near or by this messier object, however they are harder to see because this particular galaxy is so bright. The linear size of the object is 92,000 light years. This object showcases the work of God because of its magnitude, structure, and colors.


Nemiroff, Robert, and Jerry Bonnell. "Picture of the Day." APOD. NASA, 10 Jan. 1996. Web. 19 Apr. 2011. <>

Frommert, Hartmut, and Christine Kronberg. "Messier 100." . N.p., 2 Sept. 2007. Web. 19 Apr. 2011. <>.

Normandin, George. "Spiral Galaxy M-100." Kopernik Space Images. N.p., 8 July 2002. Web. 19 Apr. 2011. <>. .

Right Ascension (J2000) 12:22:55
Declination (J2000) +15:49:23
Filters used B (Blue), C (Clear), R (Red), V (Green)
Exposure time per filter B, V, R, and C (60s x 5)
Date observed March 23, 2011



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