☻Define ❝Host❞ According to Astronomy⛄☑️
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Answer:
Exoplanet host stars
The observational study of extrasolar planetary systems is a very recent topic. Instruments capable of detecting the radial-velocity variations of a solar-like star induced by orbiting Jupiter-like planets were built in the 1970s. These led to the detection of the first extrasolar planet in 1995, a hot Jupiter in a very close orbit around the star 51 Peg. During the following years, the radial velocity method was the most successful method for planet discovery, with steadily increasing detection numbers. Until 2002, 60 planets had been detected, and from 2002 to 2010, about 30 to 80 planets per year were detected.
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Xd..... Objectives and domicile of the Steering Committee
Steering CommitteeThe prime purpose for the OYA is to run the program on International Schools for Young Astronomers (). The was established in 2015 by the Norwegian Academy of Science and Letters (N) and the International Astronomical Union (IA) with the aim to ensure a robust financial and organizational basis for the operation of the program. The establishment of this office followed a previous agreement signed in 2008 between and the I. The O is a virtual office consisting of a Steering Committee with the overall responsibility for the O. The Steering Committee oversees the I program on behalf of the and the , and reports regularly to them via their respective Representatives. The Steering Committee is a supporting structure for t Director and Deputy Director. The domicile of the is the in Oslo, Norway.
in Oslo, Norway.The financial support provided by the and to the I is essentially dedicated to cover the travel and transportation costs of students and lecturers, both international and within the host country. The host inst shall cover the other expenses during the
The I Office will perform the financial management of each
The Steering Committee is composed of representatives of and . Its mandate is three years, renewable, in phase with the General Assembly.
