Classical Observations of Visual Binary and Multiple Stars

AbstractChanges in the double star database are highlighted, describing various methods of observation (both historically and those of the past few years) and their effectiveness in different regimes of separation space. The various niches for wide- and narrow-field work as they apply to double and multiple stars are examined and the different types of information which each can provide are described. Despite the significant growth of the double star database, much can still be done, such as finding lost pairs, filling in missing parameters so that observing programs can select all stars appropriate to their capabilities, or providing at least gross kinematic descriptions. After more than 20 years of successful work, speckle interferometry and conventional CCD astrometry have replaced filar micrometry and photography as preferred classical techniques. Indeed, most work in filar micrometry is now being done by amateurs. Work on pairs described as neglected in the last major WDS data release (2001) is given as a specific example. Finally, the continued need to publish data in classical double star parameters is also discussed.

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The Hipparcos Double and Multiple Star Solutions

Highlights of Astronomy ◽

10.1017/s1539299600021985 ◽

1998 ◽

Vol 11 (1) ◽

pp. 539-541

Author(s):

F. Mignard

Keyword(s):

Detailed Data ◽

Multiple Star ◽

Multiple Systems ◽

Multiple Stars ◽

Different Types ◽

Hipparcos Catalogue ◽

Double And Multiple Stars

Abstract The Hipparcos Catalogue provides general astrometric and photometric information on double and multiple stars in specific fields of the main Catalogue and detailed data on the components in the various sections of a dedicated annex: the Double and Multiple Systems Annex (DMSA). Overall statistics of these solutions are presented for the 13211 entries of this annex and the different types of solutions are outlined.

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Herramientas digitales para recolección, procesamiento y presentación de datos de campo como instrumento para afrontar la contingencia COVID-19

Encuentro de Ciencias Básicas ◽

10.14718/encuentrocienc.basicas.2021.5.9 ◽

2021 ◽

Vol 5 ◽

pp. 96-104

Author(s):

Didier Haid Alvarado Acosta

Keyword(s):

Learning Curve ◽

Training Programs ◽

Communication Technologies ◽

Field Work ◽

Web Based ◽

Face To Face ◽

The Past ◽

Online Platforms ◽

Virtual Libraries ◽

Different Types

In March of 2020, the COVID-19 outbreak forced people to lock themselves inside their homes and begin the process of transitioning from face-to-face activities at work, schools and universities to a 100 % virtual method. Even when Communication Technologies (ICT) and online platforms have seen growth over the past two decades, including various virtual libraries developed by database publishers or web-based training programs that appear to shorten the learning curve (Lee, Hong y Nian, 2002), many people were unprepared for this transition and all of them are now dedicated to entering the new reality. In this order of ideas, the activities that have traditionally required the assistance of the staff have had to adapt with the use of new tools, which meet daily needs. A clear example is the field work collection tasks. In this group, there are different types such as surveys, photographs, reviews or on-site inspections. The current work presents the use of tools for collecting, validating, analysing and presenting data remotely and in real time. All of them based on the ArcGIS Online platform.

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How Double Star Astronomy May Develop After HIPPARCOS

International Astronomical Union Colloquium ◽

10.1017/s0252921100006928 ◽

1992 ◽

Vol 135 ◽

pp. 435-438

Author(s):

J. Dommanget ◽

P. Lampens

Keyword(s):

Double Star ◽

Multiple Stars ◽

Hipparcos Catalogue ◽

Double And Multiple Stars ◽

Celestial Bodies ◽

Input Catalogue

AbstractNow that the HIPPARCOS satellite safely revolves on its “degraded” orbit — after the exploit of the ESA technicians to rescue it from the faulty ignition of its apogeum boost motor — and regularly provides the information expected for reaching the initial aim of the project, one may turn to examine the possible exploitation of the final HIPPARCOS Catalogue.In the present paper, we describe how double and multiple stars have been introduced in the Input Catalogue and what may be expected from their observation. We also try to evaluate how much the final HIPPARCOS data may influence future researches on these celestial bodies and what kind of ground–based observation programmes should be conducted in order to support the space results.

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Double Star Recognition

Highlights of Astronomy ◽

10.1017/s1539299600009412 ◽

1992 ◽

Vol 9 ◽

pp. 423-423

Author(s):

M. Frœschle ◽

F. Mignard ◽

J.L. Falin

Keyword(s):

Statistical Tests ◽

Real Data ◽

Double Star ◽

Field Of View ◽

Double Stars ◽

Signal Parameters ◽

Multiple Stars ◽

Double And Multiple Stars ◽

Stellar Source

AbstractHipparcos observations provide a wealthy source of discovery of new double and multiple stars. We have developed adequate procedures to recognize in the signal parameters the multiplicity of the stellar source passing through the Hipparcos field of view. These procedures are outlined together with the design of the statistical tests employed. Sampling on real data indicates that about 6000 new double stars will be detected at the mission completion.

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Double Star Astrometry with the Hipparcos Data

Symposium - International Astronomical Union ◽

10.1017/s0074180900227861 ◽

1995 ◽

Vol 166 ◽

pp. 69-76

Author(s):

F. Mignard

Keyword(s):

Position Angle ◽

Double Star ◽

Recognition Procedure ◽

Double Stars ◽

Multiple Stars ◽

Relative Coordinates ◽

Double And Multiple Stars

As we approach the final processing of the observations carried out by HIPPARCOS, in particular for the double and multiple stars, it is possible to provide reliable statistics on the number of such objects detected and on the quality of the relative and absolute astrometry and photometry. About 24 000 stars have been recognized as non-single, including 11 000 already known as double and multiple before the mission and 13000 discovered by Hipparcos. Also, a subset of 16 000 stars among the 24 000 have been successfully solved for their relative coordinates (position angle and separation) with an accuracy in the range of 3 to 30 mas, including 7000 new double stars. I outline in this paper the principle of the internal recognition procedure and present some statistics on the solution.

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HIPPARCOS First Results in the Double Star Processing by the FAST Consortium

International Astronomical Union Colloquium ◽

10.1017/s0252921100006886 ◽

1992 ◽

Vol 135 ◽

pp. 403-411

Author(s):

F. Mignard ◽

M. Badiali ◽

P.L. Bernacca ◽

H. Bernstein ◽

D. Cardini ◽

...

Keyword(s):

Position Angle ◽

Double Star ◽

Double Stars ◽

Multiple Stars ◽

Relative Coordinates ◽

First Results ◽

Double And Multiple Stars ◽

Quantitative Results ◽

One Year

AbstractAfter the processing of one year of observations carried out by HIPPARCOS it is possible to provide quantitative results as to the number of new double and multiple stars to be detected and the real capacity of this mission to perform relative astrometry on double stars. We present and discuss the methods developed to this end and include the first results concerning the detection statistics and the determination of separation and position angle for double stars. About 16,000 stars have been recognized as non-single, including 9,000 already known as double and mutliple before the mission. Also, a subset of 10,500 stars have been successfully solved for their relative coordinates with an accuracy in the range of 3 to 10 mas.

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Commission 26: Double and Multiple Stars

Proceedings of the International Astronomical Union ◽

10.1017/s1743921306004546 ◽

2005 ◽

Vol 1 (T26A) ◽

pp. 193-202

Author(s):

William I. Hartkopf ◽

Christine Allen ◽

J.A. Davis ◽

F.C. Fekel ◽

P. Lampens ◽

...

Keyword(s):

Double Star ◽

Multiple Stars ◽

Double And Multiple Stars

While Commission 26 remains one of the smallest in the IAU, it maintains an active program which belies its size, as highlighted below. Further information on the commission may be found at our website: http://ad.usno.navy.mil/wds/dsl.html\#iau. This site includes links to other sites and to major databases and catalogues, as well as bibliographies of recent double star papers, an archive of the Commission's Information Circulars, and a list of upcoming meetings.

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An Introduction to the Nomenclature Problem

Highlights of Astronomy ◽

10.1017/s1539299600017901 ◽

2005 ◽

Vol 13 ◽

pp. 977-980

Author(s):

Brian D. Mason ◽

William I. Hartkopf

Keyword(s):

Brown Dwarfs ◽

Special Session ◽

The Past ◽

Reduction Techniques ◽

Long Baseline ◽

Optical Interferometers ◽

Multiple Stars ◽

Double And Multiple Stars ◽

The Many

AbstractThe new observing and reduction techniques available to astronomers have led to remarkable changes in the field of double and multiple stars. New classes of companions, such as brown dwarfs and exoplanets, have been discovered. Binaries which previously constituted distinct classes are now observable by multiple techniques. With many long-baseline optical interferometers operational or planned, with improvements in other techniques, and with astrometric space-based missions in various states of planning and funding, the situation is likely to become more complicated. The result is greater understanding for the scientist, but greater challenges for the cataloger!The “problem” is that purveyors of different techniques use different nomenclature, both in terms of root designation and component identifier. It is this latter inconsistency which causes the most confusion and is the topic of this Special Session.This talk will illustrate some of the many designation ambiguities and summarize efforts made during the past few years to address this problem.

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Nonvisual Alternative Display Techniques for Output from Graphics-Based Computers

Journal of Visual Impairment & Blindness ◽

10.1177/0145482x8908300806 ◽

1989 ◽

Vol 83 (8) ◽

pp. 383-390 ◽

Cited By ~ 4

Author(s):

G.C. Vanderheiden

Keyword(s):

State Of The Art ◽

Veterans Administration ◽

The Past ◽

Computer Interfaces ◽

Different Types ◽

American Foundation ◽

Visual Graphic ◽

Types Of Information ◽

Blind Persons ◽

New Strategies

In the past, computer displays consisted mostly of unformatted text or simple row-column displays of information. This made providing access for persons who were blind a relatively straightforward task. As computers become more visually complex, however, new strategies are needed to augment the standard approaches to provide access. This article reviews the different types of information that are currently presented visually on computer systems and then discusses possible alternative display mechanisms for each that would be usable by blind persons. Some of the techniques described are commercially available; some exist as research prototypes; others, however, are still conceptual in nature. This article provides an overview and a summary of techniques identified as a result of the planning conference. The information present was compiled as a part of a state-of-the-art session, held in Madison, Wisconsin, on access to visual graphic computer interfaces by blind persons; the session was cosponsored by the Trace R&D Center, the Veterans Administration, the National Federation of the Blind, the American Foundation for the Blind, and Smith-Kettlewell Institute.

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Russian Virtual Observatory: Data Sources

Open Astronomy ◽

10.1515/astro-2017-0115 ◽

2016 ◽

Vol 25 (1) ◽

Author(s):

O. Malkov ◽

O. Dluzhnevskaya ◽

E. Bakanas ◽

E. Kilpio ◽

A. Kniazev ◽

...

Keyword(s):

Binary Star ◽

Molecular Data ◽

Variable Stars ◽

Data Sources ◽

Uv Spectrum ◽

The Past ◽

Multiple Stars ◽

Observatory Data ◽

Star Database ◽

Major Data

AbstractThe purpose of this review is to analyze main directions of creation and functioning of major data sources developed by Russian astronomers or with their participation and to compare them with the worldwide trends in these fields. We discuss astronomical space missions of the past, present, and future (Astron, INTEGRAL, WSO-UV, Spectrum Roentgen Gamma, Lyra-B), high-quality photometric atlases and catalogues, and spectroscopic data sources, primarily VALD and the global VAMDC framework for the maintenance and distribution of atomic and molecular data. We describe collection, analysis, and dissemination of astronomical data on minor bodies of the Solar System and on variable stars. Also described is the project joining data for all observational types of binary and multiple stars, Binary star DataBase (BDB).

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