Galileo Galilei: SIDEREUS NUCIUS, Venice, 1610. English Translation published at Bard College, Hudson NY" 9 October2003 English Translation [1]Archived 2012년 2월 7일 - 웨이백 머신 Original Latin version [2]Archived 2011년 6월 29일 - 웨이백 머신
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Galileo Galilei: SIDEREUS NUCIUS, Venice, 1610. English Translation published at Bard College, Hudson NY" 9 October2003 English Translation [1]Archived 2012년 2월 7일 - 웨이백 머신 Original Latin version [2]Archived 2011년 6월 29일 - 웨이백 머신
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Tom Pope and Jim Mosher: Galilean telescope homepage " March 17, 2006[3]Archived 2008년 1월 30일 - 웨이백 머신, "Some have expressed puzzlement that in his text Galileo does not mention the nebulosity (known in modern nomenclature as M42) enveloping these stars. ... Galileo believed, as he explains in Sidereus Nuncius, that what looks nebulous to the eye is resolved into stars by his telescope; what looks nebulous through his telescope could presumably also be resolved into stars by a still larger and more powerful telescope. Hence, a diffuse glow would be, more than anything, an indication of the limitations of his telescope and not particularly worthy of special note."
Tom Pope and Jim Mosher: Page on Galileo's February 4, 1617 notebook drawing of the Trapezium region, May 2, 2006 "Perhaps significantly, Galileo makes no mention of having noticed the now well-known gas cloud, M42, surrounding the Trapezium stars."[4]Archived 2011년 8월 11일 - 웨이백 머신
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Galileo Galilei: SIDEREUS NUCIUS, Venice, 1610. English Translation published at Bard College, Hudson NY" 9 October2003 English Translation [1]Archived 2012년 2월 7일 - 웨이백 머신 Original Latin version [2]Archived 2011년 6월 29일 - 웨이백 머신
Tom Pope and Jim Mosher: Galilean telescope homepage " March 17, 2006[3]Archived 2008년 1월 30일 - 웨이백 머신, "Some have expressed puzzlement that in his text Galileo does not mention the nebulosity (known in modern nomenclature as M42) enveloping these stars. ... Galileo believed, as he explains in Sidereus Nuncius, that what looks nebulous to the eye is resolved into stars by his telescope; what looks nebulous through his telescope could presumably also be resolved into stars by a still larger and more powerful telescope. Hence, a diffuse glow would be, more than anything, an indication of the limitations of his telescope and not particularly worthy of special note."
Tom Pope and Jim Mosher: Page on Galileo's February 4, 1617 notebook drawing of the Trapezium region, May 2, 2006 "Perhaps significantly, Galileo makes no mention of having noticed the now well-known gas cloud, M42, surrounding the Trapezium stars."[4]Archived 2011년 8월 11일 - 웨이백 머신
