scholarly journals Astronomical Research and Education in Tajikistan

2001 ◽  
Vol 24 (3) ◽  
pp. 187-196
Author(s):  
Pulat B. Babadzhanov
Keyword(s):  
Sea Level ◽  
High Precision ◽  
Variable Stars ◽  
Artificial Earth Satellites ◽  
National University ◽  
Artificial Earth ◽  
Astronomical Research ◽  
Research And Education ◽  
Academy Of Sciences ◽  
Scientific Fields

AbstractAstronomical researches in Tajikistan are carried out by the Institute of Astrophysics, Tajik Academy of Sciences. The main scientific fields of investigation are physics and dynamics of asteroids, comets and meteors, variable stars and observations of artificial Earth satellites. The Institute has three observational stations: the Gissar observatory (at an altitude 730 m above sea-level) with photographic fireball and meteor patrols, a 70-cm reflector, a 40-cm Zeiss astrograph, a high-precision astronomical telescope (D=1 m, F=0.75 m), etc.; the Sanglokh observatory (at an altitude 2300 m above sea-level) with a Ritchey-Chretien 1-m telescope and 0.6-m reflector by Carl Zeiss; the Pamir observatory (at an altitude 4350 m above sea-level) with a 70-cm reflector. In 1999 the Department of Astronomy was restored in the Tajik State National University and the first students were admitted to this university for the astronomical profession.

scholarly journals The 2030 Agenda: A Survival Kit for Humanity

2019 ◽  
Vol 03 (02) ◽  
pp. 166-172
Author(s):  
Peter Friberg ◽  
Sara Causevic ◽  
Johan Dahlstrand ◽  
Ulrica Segersten ◽  
Göran Tomson
Keyword(s):  
Global Health ◽  
Interdisciplinary Approach ◽  
Gender Inequalities ◽  
Research Issues ◽  
2030 Agenda ◽  
Development Goals ◽  
Gates Foundation ◽  
Research And Education ◽  
Academy Of Sciences ◽  
Scientific Fields

To deliver on the 2030 Agenda and the seventeen development goals, while facing complex health challenges, we need research and education that extend across multiple scientific fields. This will enable researchers from a variety of disciplines to meet, identify research issues, apply for funding, and conduct interdisciplinary research. In addition, student involvement is key in achieving the 2030 Agenda’s global goals – and beyond. Challenges include, climate change and child health, non-peaceful societies, gender inequalities and health. The Swedish Institute for Global Health Transformation (SIGHT) was founded in 2017 at the Royal Swedish Academy of Sciences with the support of the Bill & Melinda Gates Foundation. SIGHT’s mission is to promote an interdisciplinary approach in research and education in the field of global health. In order to deliver on the commitment to global health among researchers and students in various scientific fields and at universities and colleges across Sweden, SIGHT has established SIGHT Fellows, a mentoring programme for academic researchers. In collaboration with universities, established research institutions, and other stakeholders, SIGHT Student Network holds dynamic meetings for students from a variety of disciplines and universities to contribute to delivering the UN’s sustainability goals.

scholarly journals Side Effects of Space Debris on Astronomical Observation

1991 ◽  
Vol 112 ◽  
pp. 115-125
Author(s):  
Paul D. Maley
Keyword(s):  
Optical Spectrum ◽  
Space Debris ◽  
Volcanic Eruptions ◽  
Astronomical Observation ◽  
Artificial Earth Satellites ◽  
Artificial Earth ◽  
The Subject ◽  
Astronomical Research ◽  
Gathering Data ◽  
Atmospheric Seeing

Astronomical research continues to use ground-based facilities as a principal means of gathering data. The optical light buckets which are trained each night on celestial sources have historically had to just contend with natural interference. Sunlight, moonlight, clouds, debris created by volcanic eruptions, atmospheric seeing, and aurora are examples of factors which modify the interception and analysis of energy radiated in the optical spectrum and received at the collector end. In the last 5 years the “unnatural” encounters with artificial earth satellites are making themselves more pronounced and have become the subject of this limited study.

scholarly journals ERA: Knowledge Base for Ephemeris and Dynamical Astronomy

1997 ◽  
Vol 165 ◽  
pp. 239-244 ◽  
Author(s):  
G. A. Krasinsky ◽  
M.V. Vasilyev
Keyword(s):  
Solar System ◽  
Knowledge Base ◽  
High Precision ◽  
Easy Access ◽  
Programming System ◽  
Universal Program ◽  
Artificial Earth Satellites ◽  
Dynamical Astronomy ◽  
Solar System Bodies ◽  
Artificial Earth

AbstractA brief description of a problem-oriented language SLON for ephemeris and dynamical astronomy and a corresponding programming system ERA is given. In the frame of the system the user has easy access to an embedded universal program package to process high precision positional observations of Solar system bodies as well as of artificial Earth satellites.

scholarly journals Vitaly Grigorevsky’s Contribution to the Development of International Cooperation in Photometric Studies of Artificial Earth Satellites

2020 ◽  
Vol 8 (2) ◽  
pp. 115-127
Author(s):  
Iryna Hrushytska ◽  
Keyword(s):  
Artificial Satellites ◽  
Scientific School ◽  
Scientific Cooperation ◽  
Artificial Earth Satellites ◽  
The Earth ◽  
British Scientist ◽  
Cooperative Partnership ◽  
Artificial Earth ◽  
Mathematical Sciences ◽  
Academy Of Sciences

This article highlights the participation of the Ukrainian scientist, Professor Vitaly Mikhailovich Grigorevsky, doctor of physical and mathematical sciences, and representative of the scientific school of Vladimir Platonovich Tsesevich, in the organization and development of international cooperative partnership in the field of satellite astronomy and photometric studies of artificial satellites of the Earth. The activity of the scientist in the coordination of scientific research of the countries of Eastern Europe in 1965–1973 under the SPIN program, carried out under the auspices of the Astronomical Council of the USSR Academy of Sciences, is discussed. The article explores the main forms of Grigorevsky’s scientific cooperation with the world’s leading experts in the field of satellite astronomy—the British scientist Desmond King-Hele, the Czech astronomer František Link, Hungarian researchers Iván Almár and D. Toth, and others. Also, the achievements of the Latvian researchers Māris Ābele and Kasimirs Lapushka in the creation of photographic cameras of surveillance of satellites are analysed.

OBSERVATIONS OF ARTIFICIAL EARTH SATELLITES IN UZHGOROD UNIVERSITY: APPLIED AND FUNDAMENTAL ASPECTS

2000 ◽  
Vol 6 (0) ◽  
pp. 98-112
Author(s):  
М. В. Братійчук ◽  
А. Г. Кириченко ◽  
В. П. Єпішев
Keyword(s):  
Artificial Earth Satellites ◽  
Artificial Earth

scholarly journals General relativistic effects acting on the orbits of Galileo satellites

2021 ◽  
Vol 133 (4) ◽  
Author(s):  
K. Sośnica ◽  
G. Bury ◽  
R. Zajdel ◽  
K. Kazmierski ◽  
J. Ventura-Traveset ◽  
...  
Keyword(s):  
General Relativity ◽  
Orbit Determination ◽  
Final Height ◽  
Precise Orbit Determination ◽  
Satellite System ◽  
De Sitter ◽  
Circular Orbits ◽  
Precise Orbit ◽  
Artificial Earth Satellites ◽  
Artificial Earth

AbstractThe first pair of satellites belonging to the European Global Navigation Satellite System (GNSS)—Galileo—has been accidentally launched into highly eccentric, instead of circular, orbits. The final height of these two satellites varies between 17,180 and 26,020 km, making these satellites very suitable for the verification of the effects emerging from general relativity. We employ the post-Newtonian parameterization (PPN) for describing the perturbations acting on Keplerian orbit parameters of artificial Earth satellites caused by the Schwarzschild, Lense–Thirring, and de Sitter general relativity effects. The values emerging from PPN numerical simulations are compared with the approximations based on the Gaussian perturbations for the temporal variations of the Keplerian elements of Galileo satellites in nominal, near-circular orbits, as well as in the highly elliptical orbits. We discuss what kinds of perturbations are detectable using the current accuracy of precise orbit determination of artificial Earth satellites, including the expected secular and periodic variations, as well as the constant offsets of Keplerian parameters. We found that not only secular but also periodic variations of orbit parameters caused by general relativity effects exceed the value of 1 cm within 24 h; thus, they should be fully detectable using the current GNSS precise orbit determination methods. Many of the 1-PPN effects are detectable using the Galileo satellite system, but the Lense–Thirring effect is not.

scholarly journals A Global Network of Small Telescopes as a Resource for Astronomical Research and Education

1998 ◽  
Vol 11 (2) ◽  
pp. 923-926
Author(s):  
David L. Crawford
Keyword(s):  
General Public ◽  
Educational Needs ◽  
Global Network ◽  
Educational Tools ◽  
Scientific Education ◽  
Astronomical Research ◽  
Research And Education ◽  
The Many

There is no question that relatively small telescopes are powerful tools for astronomy, just as they always have been. With the new detectors and full usage of computers, they have become even more powerful, enabling us to do with a one-meter aperture telescope today more than 4-meter or 5-meter telescopes could do only a few decades ago. And the small ones cost a lot less to build and operate than the large ones. As such, small telescopes are the main hope for observing time for the many astronomers worldwide who need them as part of their research (or educational) tools. They can make a major impact on many areas of research and will be of great value for scientific education as well. Astronomy is very interesting to students and to the general public, not just to astronomers. Furthermore, most areas of astronomical research are data poor and more telescopes are needed to effectively attack the problems. Only a very few of us have adequate telescope time for our research or educational needs.

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