Compass and Scale Illustration for M101
M101, NGC 4547, The Pinwheel Galaxy
21.8 million light-years (6.7 megaparsecs)
This image is 18 arcminutes (114,000 light-years or 35,000 parsecs) wide.
The science team for the Spitzer data include K. Gordon (STScI), C. Engelbracht, G. Rieke, K. Misselt, and J.-D. Smith (University of Arizona), and R. Kennicutt (University of Cambridge).
This image was created from HST data from the following proposals:
9490: K. Kuntz (Johns Hopkins University)
9492: F. Bresolin (University of Hawaii)
5210: J. Trauger (Jet Propulsion Laboratory)
5397: J. Mould (NOAO)
6829: Y.-C. Chu (University of Illinois, Urbana)
The Hubble exposures have been superimposed onto ground-based images, visible at the edge of the image, taken at the Canada-France-Hawaii Telescope in Hawaii, and at the 0.9-meter telescope at Kitt Peak National Observatory, part of the National Optical Astronomy Observatory in Arizona.
The science team was led by K. Kuntz (Johns Hopkins University).
Spitzer: 85 sec/pixel (IRAC and; 200 sec/pixel (MIPS 24 micron)
HST: F435W (B), F555W (V)), and F814W (I)
CXO Energies: 0.45 - 1.00 keV and 1.00 - 2.00 keV