User:Sakura emad/Article/Hubble sequence
< User:Sakura emad | Article
The Hubble sequence is a morphological classification scheme for galaxies invented by Edwin Hubble in 1926 [1][2][3][4] It is often informally known as the Hubble tuning fork diagram because the shape in which it is traditionally represented resembles a tuning fork
References[change | change source]
- ↑ Hubble, E. P. (1926). "Extra-galactic nebulae". Contributions from the Mount Wilson Observatory / Carnegie Institution of Washington. 324: 1–49. Bibcode:1926CMWCI.324....1H.
- ↑ Hubble, E. P. (1926). "Extra-galactic nebulae". Astrophysical Journal. 64: 321–369. Bibcode:1926ApJ....64..321H. doi:10.1086/143018.
- ↑ Hubble, E. P. (1927). "The Classification of Spiral Nebulae". The Observatory. 50: 276. Bibcode:1927Obs....50..276H.
- ↑ Hubble, E.P. (1936). The realm of the nebulae. Mrs. Hepsa Ely Silliman memorial lectures, 25. New Haven: Yale University Press. ISBN 9780300025002. LCCN 36018182. OCLC 611263346. Alt URL
Other Websites[change | change source]
- Galaxies and the Universe – an introduction to galaxy classification
- Near-Infrared Galaxy Morphology Atlas, T.H. Jarrett
- The Spitzer Infrared Nearby Galaxies Survey (SINGS) Hubble Tuning-Fork, SINGS Spitzer Space Telescope Legacy Science Project
- Galaxy Zoo – Galaxy classification participation project.