Electronic Resource
[s.l.]
:
Nature Publishing Group
Nature
349 (1991), S. 470-470
ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Sir—Gry and Bonnet-Bidaud's claim1 that the alleged ancient red colour of Sirius was due to the obscuring of Sirius by a globule is not corroborated by the historical record. There is no evidence for a fainter Sirius in the past. Ptolemy's brightness estimates are unreliable as the 14 other ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/349470b0
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