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Double Star Observing List (Epoch 2000.0) ... Double Star Club Chair: ... Double Star Certificate Introduction and Rules; Double Star Club Log Sheet; Find Your Double Star Club Award...
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www.astroleague.org/al/obsclubs/dblstar/dblstar2.html
www.astroleague.org/al/obsclubs/dblstar/dblstar2.html
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FA Field Guide to Double Star Observing. ... The Field Guide to Double Star Observing is a must have resource for Amateur Astronomers. Many of us don't go out and observe when the conditions are not ideal for deep sky observations whether it be light pollution at home or a moon-lit night.
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www.fvastro.org/dalsanto/js_double.htm
www.fvastro.org/dalsanto/js_double.htm
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By Joe DalSanto - Many amateur astronomers have never given double star observing a chance. Here are some good reasons to do so... ... Home > Articles > Observing > Deep Space > Double Star Observing...
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www.astromart.com/articles/article.asp?article_id=38
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The observing report you are about to read is not real. ... The double star pairs rendered as follows were generated on a home PC. That program has the capacity to emulate double star images displayed by any telescope in the range 75 to 300mm in aperture - any scope of any basic type - apochromatic refractor, newtonian,
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astro.geekjoy.com/scopes/virtualsixinchers.html
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Astronomical League Double Star Observing Log - M. Bracewell ... I need to just look at the view, note north and stick to that. Another tetrahedron asterism around this double. ... PA 320, close to same mag but enough difference to make out the A star Nicely different from other double tonight. V. cold and dew all over now.
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'How many ecstatic hours does the astronomer spend at the eye-end, high up on his scaffold-like observing chair, ... Although the telescope was removed from Greenwich to Herstmonceaux in 1957, it was used for research into double star systems throughout its working life until its retirement in the late 1960s. It was returned...
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www.nmm.ac.uk/server/show/conWebDoc.354/viewPage/7
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It will be combined with a lab dealing with double star measurement since there are not that many stars which are accessible with the star spectroscope. ... When observing absorption lines the would be drawn in the positions observed relative to the color delineation markers. Magnitude 6 and slightly dimmer were comfortably...
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www.ifa.hawaii.edu/tops/descrLspec.html
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In order to determine the level of interest in double star observing, an enquiry was forwarded to all Centres. The response was generally positive, and the Section Director plans to establish and maintain regular contact with the Centres and other interested parties in due course.
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www.saao.ac.za/assa/html/annual_report_of_the_assa_doub...
www.saao.ac.za/assa/html/annual_report_of_the_assa_doub.html
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Ron Tanguay is a veteran double-star observer. Recently he completed a series of highly accurate measurements for 17 stars using his 3.5-inch Questar telescope. The data were of sufficient quality to be considered for inclusion in the Washington Visual Double ... home > observing > celestial objects > double stars...
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www.skyandtelescope.com/observing/objects/doublestars/3...
www.skyandtelescope.com/observing/objects/doublestars/3304341.html
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