Double star catalogs

2016 ◽  
pp. 167-168
Author(s):  
Bruce MacEvoy ◽  
Wil Tirion ◽  
James Mullaney
Keyword(s):  
Double Star ◽  
Star Catalogs

scholarly journals U.S. Naval Observatory Double Star CD 2006.5

2006 ◽  
Vol 2 (S240) ◽  
pp. 575-580 ◽  
Author(s):  
Brian D. Mason ◽  
William I. Hartkopf
Keyword(s):  
Binary Stars ◽  
Double Star ◽  
List Type ◽  
Star Catalog ◽  
Naval Observatory ◽  
Scale Calibration ◽  
Linear Elements ◽  
Visual Binary Stars ◽  
Star Catalogs ◽  
Magnitude Difference

AbstractThe U.S. Naval Observatory has produced its second CDROM of double star catalogs. This successor to the 2001.0 CDROM includes the latest versions (June 30 2006) of four major double star catalogs maintained at the USNO: •Washington Double Star Catalog (WDS),•Second Photometric Magnitude Difference Catalog,•Fourth Catalog of Interferometric Measurements of Binary Stars, and•Sixth Catalog of Orbits of Visual Binary Stars.Each of these catalogs had seen significant changes during the past six years; for example, the WDS has grown by over 150,000 measures and the number of systems in the Interferometric Catalog has nearly doubled. Other improvements include precise coordinates for the vast majority of systems, as well as new observing lists for tens of thousands of “neglected” doubles.Also included on this CDROM is a Catalog of Linear Elements for several hundred optical pairs. These elements should prove useful for improving the components' proper motions, as well as providing scale calibration out to several tens of arcseconds.As was done with its predecessor, the new CDROM is automatically distributed free of charge to members of the double star community and to astronomy libraries. Others may receive a complementary copy upon request.

scholarly journals Visual Double Star Catalogs — Past, Present, and Future

1992 ◽  
Vol 135 ◽  
pp. 284-290
Author(s):  
Charles E. Worley
Keyword(s):  
Data Base ◽  
18Th Century ◽  
Double Star ◽  
Star Data ◽  
Double Stars ◽  
Future Needs ◽  
Visual Double Stars ◽  
Late 18Th Century ◽  
Star Catalogs ◽  
Systematic Collection

AbstractThe first lists of visual double stars were published by Mayer and Herschel in the late 18th century, but only sporadic lists and catalogs appeared during most of the following century, until Burnham began the systematic collection of such data, which has continued to this day. This contribution discusses the evolution of the visual double star data base over the last centuries and suggests how the data might be ordered to serve future needs.

scholarly journals A Plan for a New Generation 2 m-Class Telescope in Indonesia

1984 ◽  
Vol 80 ◽  
pp. 409-410
Author(s):  
Karel A. Van Der Hucht
Keyword(s):  
Double Star ◽  
Radial Velocities ◽  
Spectroscopic Binaries ◽  
Theoretical Research ◽  
60Th Anniversary ◽  
Additional Tool ◽  
New Generation

AbstractOne of the prime astrophysical interests of the Observatorium Bosscha is, and has always been, double star research: visual double star research with the double-60 cm Zeiss telescope (dedicated in 1928), and theoretical research of evolved massive spectroscopic binaries (since 1972). For one thing, this is the very reason that this IAU Colloquium No. 80, celebrating the 60th anniversary of the Observatorium Bosscha in Lembang, is devoted to binary astrophysics.Up to now, visual, photographic, and photometric tools have been used for binary research at the Observatorium Bosscha. An important, essential additional tool for binary research is spectrographic equipment, in order to measure radial velocities of binary components.

scholarly journals SUSI’s Potential for Double Star Research

1992 ◽  
Vol 135 ◽  
pp. 521-526
Author(s):  
John Davis
Keyword(s):  
Angular Resolution ◽  
Double Star ◽  
Double Stars ◽  
Stellar Interferometer ◽  
New Instrument

AbstractThe Sydney University Stellar Interferometer (SUSI) is currently undergoing commissioning and will soon commence its astronomical program in which observations of double stars will form a major component. With its 640-m long North–South array of input siderostats, the new instrument will have unprecedented angular resolution.

scholarly journals Radial variation of whistler-mode chorus: first results from the STAFF/DWP instrument on board the Double Star TC-1 spacecraft

2005 ◽  
Vol 23 (8) ◽  
pp. 2937-2942 ◽  
Author(s):  
O. Santolík ◽  
E. Macúšová ◽  
K. H. Yearby ◽  
N. Cornilleau-Wehrlin ◽  
H. StC. K. Alleyne
Keyword(s):  
Cyclotron Frequency ◽  
Power Spectra ◽  
Double Star ◽  
Electron Cyclotron ◽  
Radial Variation ◽  
Whistler Mode ◽  
Electron Cyclotron Frequency ◽  
The Earth ◽  
First Results ◽  
Initial Results

Abstract. We use the first measurements of the STAFF/DWP instrument on the Double Star TC-1 spacecraft to investigate whistler-mode chorus. We present initial results of a systematic study on radial variation of dawn chorus. The chorus events show an increased intensity at L parameter above 6. This is important for the possible explanation of intensifications of chorus, which were previously observed closer to the Earth at higher latitudes. Our results also indicate that the upper band of chorus at frequencies above one-half of the electron cyclotron frequency disappears for L above 8. The lower band of chorus is observed at frequencies below 0.4 of the electron cyclotron frequency up to L of 11-12. The maxima of the chorus power spectra are found at slightly lower frequencies compared to previous studies. We do not observe any distinct evolution of the position of the chorus frequency band as a function of L. More data of the TC-1 spacecraft are needed to verify these initial results and to increase the MLT coverage.

Observations of the double star β 416

1895 ◽  
Vol 137 (10) ◽  
pp. 159-160
Author(s):  
H. C. Russell
Keyword(s):  
Double Star
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