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Today’s APOD image is very impressive – AND taken in the infrared with the excellent Spitzer Space Telescope. It shows one of our galaxy’s best-known regions where massive stars are being born, called W5. It lies about 6500 light years away and measures over 200 light years across.
Generations of Stars in W5 Credit Lori Allen, Xavier Koenig (Harvard-Smithsonian CfA) et al., JPL-Caltech, NASA
This picture was on the BBC news website today. It’s a fab picture taken in the infrared with the Spitzer Space Telescope, which operates in the infrared. The press release is here. There’s also quite an entertaining -albeit a bit cringeworthy- video on the Spitzer website at Caltech. Well done, Karl!
It shows how polycyclic aromatic hydrocarbons, or PAHs, become quite suddenly depleted towards the outer rim of the galaxy.
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