... At our last meeting Ron Mittelstaedt showed me his recent copy of an observing guide to The Caldwell Objects by Stephen James O'Meara published by Sky Publishing. ... Another item is my observing chair. ... There are 122 members. ... I am not going to send out renewal notices to members who get magazines, they get enough notices from their respective publishers. ... This effort was called Project Orion. ... The University Store will be selling copies of Project Orion at the meeting on Tuesday...
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Ссылки http://www.princetonastronomy.org/newsletters/02_2003sidereal.pdf -- 326.0 Кб -- 27.04.2003 Похожие документы
... In space, therefore, we should choose technologies carefully. ... For instance, the solar-photon sail--pushed through space by linear-momentum transfer from reflected solar photons--could carry water mined on comets or hydrated asteroids towards human habitats in dry solar systems. ... Article Highlights New Type Of Astronomy ,,Clubs: Online Amateur astronomers "are beginning to look very different from what they did only a few years ago," an article in last months Sky & Telescope observed. ...
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Ссылки http://www.aaa.org/EyepieceFiles/aaa/2009_10_October_Eyepiece.pdf -- 660.7 Кб -- 22.02.2015 Похожие документы
... 000, 113 (2010) Printed 21 September 2011 A (MN L TEX style file v2.2) A universal ultraviolet-optical colourcolourmagnitude relation of galaxies I1gor V. Chilingarian1,2, and Ivan Yu. ... Received 2011 Sep 15; in original form 2011 Feb 6 ABSTRACT The bimodal galaxy distribution in the optical colourmagnitude diagram (CMD) comprises a narrow "red sequence" populated mostly by early-type galaxies and a broad "blue cloud" dominated by star-forming systems. ...