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Physics & Astronomy Department

Astr110 Photography Projects, Spring 2010

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Antennae Galaxy, Angel Kelartinian

Antennae Galaxy

The antennae galaxy is actually two galaxies that have merged together to create one galaxy. This process has taken over a billion years. The stars have not collided. What has collided is their clouds of molecular gases and dust particles. Two important stars found in this galaxy are NGC 4038 and NGC 4039. The constellation Corvus can also be found near this galaxy. This galaxy is 500 thousand light years in distance. This collision of galaxies is what may happen when the Milky Way galaxy and the Andromeda galaxy collides in the future.

In the Antennae photo, we see an image of a glowing, colored galaxy. We can also see the two stars NGC 4038 and NGC 4039. This image is created because of the blend of two galaxies. The color of the image is a purplish/reddish color and the two stars are distinguishably bright. The angular size of the image is 2.7 arc minutes. The linear size of the image is 392ly.

References:

Bonnell, Jerry and Robert Nemiroff. "The Antennae." APOD

<http://antwrp.gsfc.nasa.gov/apod/ap060630.html>

"Antennae Galaxies." Wikipedia. <http://en.wikipedia.org/wiki/Antennae_Galaxies>

Right Ascension (J2000) 12:01:52.80
Declination (J2000) -18:51:54
Filters used blue(B), green(V), red(R), and clear(C)
Exposure time per filter 10x30 seconds in BVRC
Date observed

March 13, 2010 (C)
March 13, 2010 (BVR)