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Click to enlargeHubble NGC 1365 (Infrared) Photo

Buy the NGC 1365 space photo. High quality Hubble picture, slide, or Duratrans backlit transparency. NASA photograph H99-34a2 . Wide variety of sizes.
Click to see selection as Astronomy Picture of the Day (APOD) - October 8, 1999

This image in infrared light reveals how the barred spiral galaxy NGC 1365 is feeding material into its central region, igniting massive star birth and probably causing its bulge of stars to grow. The material also is fueling a black hole in the galaxy's core. A galaxy's bulge is a central, football-shaped structure composed of stars, gas, and dust.

A barred spiral is characterized by a lane of stars, gas, and dust slashing across a galaxy's central region. It has a small bulge that is dominated by a disk of material. The spiral arms begin at both ends of the bar. The bar is funneling material into the hub, which triggers star formation and feeds the bulge.

In this infrared image, the Hubble telescope penetrates the dust seen in the WFPC2 picture to reveal more clusters of young stars. The bright blue dots represent young star clusters; the brightest of the red dots are young star clusters enshrouded in dust and visible only in the infrared image. The fainter red dots are older star clusters.

This NICMOS image, taken at a wavelength of 16,000 Angstroms, was combined with the visible and near-infrared wavelengths taken by WFPC2.

October 6, 1999
Credits for the NICMOS image: NASA, ESA, and C. Marcella Carollo (Columbia University)

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