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Revision as of 19:39, 15 December 2024 by Ryan shell (talk | contribs) (added source backing up claim of grav lensing)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff) A galaxy cluster in the constellation Ursa Major
SDSS J1038+4849 is a galaxy cluster in the constellation Ursa Major, famous for its appearance as a smiley face. The yellow eyes and white nose are distant galaxies, while the smile and border are caused by gravitational lensing.
References
- "Hubble Sees a Smiling Lens - NASA Science". science.nasa.gov.
- Wiesner, M. P. (2010). On the properties of ten strong-lensing systems found in the Sloan Digital Sky Survey (Master's thesis, Northern Illinois University).