Binary star - Wikipedia, the free encyclopedia
|
|
A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is called the primary and the other is its companion star , comes , or se...
en.wikipedia.org/wiki/Binary_star
|
|
Double star - Wikipedia, the free encyclopedia
In observational astronomy, a double star is a pair of stars that appear close to each other in the sky as seen from Earth when viewed through an optical telescope. This can happen either because th...
en.wikipedia.org/wiki/Double_star
|
|
Asaph Hall is famous for his discovery with the 26-inch refractor of the satellites of Mars in 1877. Less well known are his contributions to double star astronomy in the years 1875-1891. Two lists of observations containing 4,945 measures, were published by Hall (Washington Observations 1877,
|
ad.usno.navy.mil/wds/ds_history.html
|
|
|
|
Regardless of the actual number involved, any stellar system containing two or more stars is referred to generically as a double star or binary star. We can break this down further into four broad categories. Double stars that can be resolved through telescopes are referred to as visual binaries. ... WELCOME TO ASTRONOMY...
|
www.astronomy.com/asy/default.aspx?c=a&id=4742
www.astronomy.com/asy/default.aspx?c=a&id=4742
|
|
|
|
K3's Astronomy Home Page ... Castor is multiply star system which consists of 3 couples of stars - Castor A, B, C. Each couple is spectroscopic double star. The A couple (magnitude 1.58) is separated from the B couple (magnitude 2.88) by distance ranging from 1.8" to 6.5" over a period of approximately 400 years.
|
www.pk3.org/Astro/sky_doublestars.htm
www.pk3.org/Astro/sky_doublestars.htm
|
|
|
Object, photo, link, and chart of the month, news, and images located in Red Bank. ... Founded in 1957, the club holds regular meetings, observing nights, star parties, trips and special activities such as amateur telescope making and assisting local schools, scouts and park systems in conducting public astronomy programs.
|
www.starastronomy.org/
www.starastronomy.org/
|
|
SAO/NASA ADS Astronomy Abstract Service ... More Article Retrieval Options ... Title:; PROBLEMS IN ASTROMETRY: The present status of double star astronomy...
|
adsabs.harvard.edu/abs/1954AJ.....59...61S
|
|
SAO/NASA ADS Astronomy Abstract Service ... More Article Retrieval Options ... Title:; Recent Progress in Double Star Astronomy: A Review...
|
adsabs.harvard.edu/abs/1922PASP...34..330A
|
|
Saguaro Astronomy Club Double Star Database version 4.0; July 4, 2008 ... The Saguaro Astronomy Club's Double Star Database, Version 2.1 contains information on over 10,000 multiple star systems. Click here to download this 597,300 byte .ZIP file.
|
www.saguaroastro.org/content/downloads.htm
|
|
