This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
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عنوان الصورة
The bottom row represents composite pictures from Hubble's visible- and infrared-light cameras, the Wide Field and Planetary Camera 2(WFPC2) and the Near Infrared Camera and Multi-Object Spectrometer(NICMOS). Astronomers combined views from both cameras to obtain the true ages of the stars surrounding each galaxy's bulge. The Hubble telescope's sharper resolution allows astronomers to study the intricate structure of a galaxy's core.
الرصيد/المزود
NASA, ESA, and Reynier Peletier (University of Nottingham, United Kingdom)
المصدر
ESA/Hubble
عنوان قصير
Central Bulges of Spiral Galaxies- NGC 7537 (Hubble NICMOS and WFPC2 View)
شروط الاستخدام
Creative Commons Attribution 4.0 International License