Colin Stanley Gum (1924-1960) was an Australianastronomer who catalogued emission nebulae in the southern sky using wide field photography. Gum published his findings in 1955 in a study entitled A study of diffuse southern H-alpha nebulae regarding an emission nebula that was later named Gum Nebula in his honor. Gum was part of the team, whose number included Frank John Kerr and Gart Westerhout, that determined the precise position of the neutral hydrogen plane in space. 1924 (MCMXXIV) was a leap year starting on Tuesday (link will take you to calendar). ... 1960 (MCMLX) was a leap year starting on Friday (link will take you to calendar). ... An astronomer or astrophysicist is a scientist whose area of research is astronomy or astrophysics. ... An emission nebula is a cloud of ionized gas ( a plasma) emitting light of various colors. ... 1955 (MCMLV) was a common year starting on Saturday of the Gregorian calendar. ... Gum Nebula (Gum 56) is an emission nebula that can be found in the southern constellations Vela and Puppis. ... Frank John Kerr (January 8, 1918--September 15, 2000) was an Australian astronomer and physicist who made contributions to human understanding of the galactic structure of the Milky Way. ... Gart Westerhout (1927- ) is a Dutch radio astronomer. ... The hydrogen line refers to the spectral line created by changes in the energy state of neutral hydrogen and occurs at 1420. ...
Gum crater, on the Moon, is named after him. An obituary article on Gum appears in the Australian Journal of Science (Vol. 23, no. 4, 1960). Gum is a lunar crater that is located near the southeastern limb of the Moon, and is viewed nearly from the side from Earth. ... Bulk composition of the moons mantle and crust estimated, weight percent Oxygen 42. ... An obituary is a notice of the death of a person, usually published in a newspaper, written or commissioned by the newspaper (rather than written by relatives), and usually including a short biography. ...
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