We have launched the new Spitzer website! Send feedback to outreach@ipac.caltech.edu. Find the old website at http://legacy.spitzer.caltech.edu.
NGC 3627 (M66)
Sig05 016

Credit: NASA/JPL-Caltech/R. Kennicutt (University of Arizona) and the SINGS Team

Observation • September 15th, 2005 • sig05-016

sig05-016

This image of spiral galaxy NGC 3627, also known as Messier 66, was captured by the Spitzer Infrared Nearby Galaxy Survey (SINGS) Legacy Project using the telescope's Infrared Array Camera (IRAC).

NGC 3627 is estimated to be 30 million light-years distant and seen towards the constellation Leo. Astronomers suspect that the galaxy's distorted shape is due to its ongoing gravitational interactions with its neighbors Messier 65 and NGC 3628. NGC 3627 is another brilliant example of a barred spiral galaxy, the most common type of disk galaxy in the local Universe. Its blue core and bar-like structure illustrates a concentration of older stars. While the bar seems devoid of star formation, the bar ends are bright red and actively forming stars. A barred spiral offers an exquisite laboratory for star formation because it contains many different environments with varying levels of star-formation activity, e.g., nucleus, rings, bar, the bar ends and spiral arms.

The SINGS image is a four-channel color composite, where blue indicates emission at 3.6 microns, green corresponds to 4.5 microns, and red to 5.8 and 8.0 microns. The contribution from starlight (measured at 3.6 microns) in this picture has been subtracted from the 5.8 and 8 micron images to enhance the visibility of the dust features.

About the Object

Name
Messier 66M66NGC 3627
Type
Galaxy > Type > Spiral
Galaxy > Type > Barred
Distance
30,000,000 Light Years
Redshift
0.002425

Color Mapping

Band Wavelength Telescope
Infrared 3.6 µm Spitzer IRAC
Infrared 4.5 µm Spitzer IRAC
Infrared 5.8 µm Spitzer IRAC
Infrared 8.0 µm Spitzer IRAC

Astrometrics

Position (J2000)
RA =11h 20m 17.9s
Dec = 13° 0' 0.1"
Field of View
10.1 x 10.1 arcminutes
Orientation
North is 62.6° left of vertical