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NGC 891 Galaxy
Jeremy Li

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NGC 891 Galaxy

NGC891 is an edge-on spiral galaxy 30 million light-years away. Spiral galaxies are galaxies with spiral arms extending from a center bulge. The spiral arms are where stars are located and includes much gas and dust, where star formation occurs. Along the equator is a thin light-absorbing path of dust. William Herschell discovered the galaxy on October 6, 1784 and studies by astronomers Gilbert Esquerdo and John Barentine suggest that it might be a barred spiral galaxy, where there is a large bar across the center. It is part of the constellation Andromeda and NGC1023 galaxy group.

This photo shows the galaxy from an edge-on view, as it appears as a thin line. Along the equator of the galaxy is a fine path of dust blocking the light from behind it. The bulge is in the middle section of the galaxy. Based on the photo, NGC891 has a linear size of about 90000 light years.

References:

Franke, Bob. "NGC 891." Focal Pointe Observatory. Accessed 6 Dec. 2010.
<http://bf-astro.com/ngc891/ngc891.html>.

Frommert, Hartmut, and Christine Kronberg. "NGC 891." Students for the Exploration and Development of Space. Accessed 6 Dec. 2010. <http://www.seds.org/messier/xtra/ngc/n0891.html>.

Nemiroff, Robert, and Jerry Bonnell. "APOD: February 28, 1997 - Edge-On Spiral Galaxy NGC 891."
NASA
. Accessed 6 Dec 2010. <http://apod.nasa.gov/apod/ap970228.html>.

Right Ascension (J2000) 02:22:36
Declination (J2000) +42:21:00
Filters used clear(C)
Exposure time per filter 4x300 in clear (C)
Date observed

October 28, 2010 (C)

 

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