The Triangulum Galaxy


M33

The Triangulum Galaxy

About the Triangulum Galaxy:
Located in the constellation of Triangulum, the Triangle, the Triangulum Galaxy is a nearby face-on spiral galaxy. Also known as M33, it is over thirty thousand light-years across, and more than two million light-years away. M33, our galaxy and the Andromeda Galaxy (also known as M31) are the three major galaxies of our corner of the Universe, a small group of galaxies known as "The Local Group." The area shown in this image is quite large, appearing to be over five times the size of the full Moon.

It was also the Astronomy Picture of the Day on December 2nd, 2002. A hybrid image of M33 with radio data is also available here.



About the Image:

Telescope:

The National Science Foundation's 0.9-meter telescope at Kitt Peak National Observatory

Instrument:

MOSAIC I

Astronomers:

T.A. Rector (NRAO/AUI/NSF and NOAO/AURA/NSF)

Dates of Observation:

January 12-15, 2001

Filters and Assigned Colors:

B (blue), V (green), I (orange) and Hydrogen-Alpha (red)

Exposure Times:

25 minutes in each optical filter

Center of Image:

RA: 01:33:51.02,  Dec: +30:39:36.70 (J2000)

Field of View:

59 x 59 arcminutes

Orientation:

North is up and East is to the left


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