Electronic Resource
[s.l.]
:
Nature Publishing Group
Nature
191 (1961), S. 1083-1083
ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] Recently, Johnson3 reported negative results in Ha of the nebula by means of direct and spectro-scopic exposures centred on the brightest ultra-violet isophote about 10 min. of arc west of Spica. In order to examine the area immediately surrounding the star a number of long exposures have been ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/1911083a0
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