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Astr110 Photography Projects, Spring 2008

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M82, Messier 82, Michelle Ayeh


M82 also known as NGC 3034 or simply the Cigar Galaxy is located in the Northern Constellation Ursa Major at a distance of 12 million light years(12kly). M82 was discovered by Johan Elert Bode in 1774 about 0.75 degrees away from M81; he named it the Nebulous patch. Alongside its gravitational partner spiral galaxy M81, M 82 is classified as an irregular galaxy. It is one of our most violent and active star burst galaxies, the explosive bipolar gaseous flow from M 82 produces strong radio noise.

In infrared, M82 is the brightest galaxy in the sky. Over 100 freshly formed globular clusters were recently discovered with the hubble space telescope. Their formation was probably triggered by its interaction with M81, It is is speculated that M81 and M82 most recent tidal encounter may have occurred around several 100million years ago. Messier 82's activity can be studied very well from earth, which makes it the best studied galaxies in the sky.

Angular Size: 12 minutes corresponding to a linear size of appx; 40,000ly

Hartmut Frommet, Christine Kronberg. "M82." <http://www.seds.org/messier/m/m082.html>


Right Ascension (J2000) '09 55 48.00'
Declination (J2000) '+69 41 27.0'
Filters used blue(B), green(V), red(R), and clear(C)
Exposure time per filter 5x60 seconds on Average
Date and Time observed

March 03, 2009 (CBVR)

(R)23:39:51 Standard Eastern Time

(V)23:38:31Standard Eastern Time

(B)23:37:08 Standard Eastern Time

(C)23:32:35 Standard Eastern Time