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Physics & Astronomy Department

Astr110 Photography Projects, Spring 2010

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M 109 , Lee Dekievit

M 109

M109 is a barred spiral galaxy. Barred spiral galaxies make up half of spiral galaxies. They are identified by the bar of stares in the middle with the spirals growing from them. This I part of the messier objects even though it was first observed by Pierre Méchain first in 1781. Latter when other people in 1789 found it they classified it as a planetary nebula. It was finally added to the messier objects in 1953. In 1956 a supernova took place in the M 109 galaxy and the supernova reached about a 12.5 mag. M 109 also happens to have three satellite galaxies.

This galaxy doesn't’t have very much color to it in this picture. And you can see the bar in the middle of the galaxy with the large arms wrapping around the center. This galaxy is approximately 46 million light years away with a angular size of about 5.5. So this galaxy is about the same size as the milky way being about 74,000 light years long when the milky way is about 100,000 light years long. this is truly a example of God's beauty showing in the universe.

References:

http://seds.org/messier/m/m109.html

http://en.wikipedia.org/wiki/Messier_109

Right Ascension (J2000) 11:57:54
Declination (J2000) 53:24:24
Filters used blue(B), green(V), red(R), and clear(C)
Exposure time per filter 5x60 seconds in CBVR

Date observed

March 2, 2010 (CBVR)

Time Observed 12:29 Eastern Daylight Time