Star Formation
The Spitzer Space Telescope is providing astronomers with an unprecedented view of the birth of stars in our Galaxy. Using the Spitzer's IRAC instrument, developed at Cfa, we can probe deep inside of the gas and dust that enshrouds stellar nurseries.
Matt Ashby,Giovanni Fazio, Joseph Hora, Steven Willner
Orion Nebula
This infrared image from NASA's Spitzer Space Telescope shows the Orion nebula, the closest massive star-making factory to Earth. Spitzer surveyed a significant swath of the Orion constellation, beyond what is highlighted in this image. Within that region, called the Orion cloud complex, the telescope found 2,300 stars circled by disks of planet-forming dust and 200 stellar embryos too young to have developed disks.
In this color-coded image from Spitzer's Infrared Array Camera, light with wavelengths of 8 and 5.8 microns (red and orange) comes mainly from dust that has been heated by starlight. Light of 4.5 microns (green) shows hot gas and dust; and light of 3.6 microns (blue) is from starlight.
NASA/JPL-Caltech/Univ. of Toledo
