15 relations: Apsis, Broglio Space Centre, David J. Darling, Earth science, Explorer 47, Explorer 49, Explorers Program, Gamma-ray astronomy, Geminga, Geocentric orbit, Low Earth orbit, NASA, Pulsar, Small Astronomy Satellite 3, Uhuru (satellite).
Apsis
An apsis (ἁψίς; plural apsides, Greek: ἁψῖδες) is an extreme point in the orbit of an object.
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Broglio Space Centre
The Luigi Broglio Space Center (BSC) is an Italian-owned spaceport near Malindi, Kenya, named after its founder and Italian space pioneer Luigi Broglio.
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David J. Darling
David Darling (born 29 July 1953 in Glossop, Derbyshire) is an English astronomer, freelance science writer, and musician.
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Earth science
Earth science or geoscience is a widely embraced term for the fields of natural science related to the planet Earth.
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Explorer 47
Explorer 47, also known IMP-7 and Interplanetary Monitoring Platform IMP-H, was an American satellite launched as part of Explorers program.
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Explorer 49
Explorer 49 (also called Radio Astronomy Explorer-B(RAE-B)) was a 328 kilogram satellite launched on June 10, 1973 for long wave radio astronomy research.
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Explorers Program
The Explorers Program is a United States space exploration program that provides flight opportunities for physics, geophysics, heliophysics, and astrophysics investigations from space.
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Gamma-ray astronomy
Gamma-ray astronomy is the astronomical observation of gamma rays,Astronomical literature generally hyphenates "gamma-ray" when used as an adjective, but uses "gamma ray" without a hyphen for the noun.
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Geminga
Geminga is a neutron star approximately 250 parsecs (around 800 light years) from the Sun in the constellation Gemini.
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Geocentric orbit
A geocentric orbit or Earth orbit involves any object orbiting Planet Earth, such as the Moon or artificial satellites.
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Low Earth orbit
A low Earth orbit (LEO) is an orbit around Earth with an altitude of or less, and with an orbital period of between about 84 and 127 minutes.
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NASA
The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.
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Pulsar
A pulsar (from pulse and -ar as in quasar) is a highly magnetized rotating neutron star or white dwarf that emits a beam of electromagnetic radiation.
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Small Astronomy Satellite 3
The Small Astronomy Satellite 3 (SAS 3, also known as SAS-C before launch) was a NASA X-ray astronomy space telescope.
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Uhuru (satellite)
Uhuru was the first satellite launched specifically for the purpose of X-ray astronomy.
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Redirects here:
Explorer 48, SAS-2, Second Small Astronomy Satellite.
References
[1] https://en.wikipedia.org/wiki/Small_Astronomy_Satellite_2