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aberration of starlight

aberration of starlight   Quick reference

A Dictionary of Astronomy (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
152 words
Illustration(s):
1
The small apparent difference between the observed direction of a star and its true direction (see diagram). It is due to the combined effect of the observer’s motion across the path of ... More
Afternoon Constellation

Afternoon Constellation   Quick reference

A Dictionary of Space Exploration (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
137 words
Illustration(s):
1
A group of *Earth-observing satellites operated by *NASA and its international partners that closely follow one after another along the same orbital ‘track’. The satellites are in a polar ... More
Akatsuki

Akatsuki   Quick reference

A Dictionary of Space Exploration (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
204 words
Illustration(s):
1
A *Japanese Aerospace Exploration Agency (JAXA) *spacecraft designed to monitor volcanic activity on *Venus as well as information on its clouds and climate using multi-wavelength imaging. ... More
Aldrin, Buzz

Aldrin, Buzz (1930– )   Quick reference

A Dictionary of Space Exploration (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
277 words
Illustration(s):
1

who, with Neil *Armstrong, landed on the Moon on 20 July 1969 during the Apollo 11 mission, becoming the second person to set foot on the Moon....

aperture synthesis

aperture synthesis   Quick reference

A Dictionary of Astronomy (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
243 words
Illustration(s):
1

A technique used in radio astronomy to achieve high angular resolution. It uses an array of telescopes to simulate a single telescope of large aperture (...

Apollo project

Apollo project   Quick reference

A Dictionary of Space Exploration (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
800 words
Illustration(s):
1

The US space project to land a person on the Moon, achieved on 20 July 1969, when Neil *Armstrong...

astrometric binary

astrometric binary   Quick reference

A Dictionary of Astronomy (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
97 words
Illustration(s):
1

A binary star in which the presence of an invisible or unresolved component is inferred from irregularities in the proper motion of the visible component (...

Atlantis

Atlantis   Quick reference

A Dictionary of Space Exploration (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
181 words
Illustration(s):
1

The fourth of the US *space shuttles. It made its first flight on 3 October 1985 with a crew of five....

Aurora 7

Aurora 7   Quick reference

A Dictionary of Space Exploration (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
104 words
Illustration(s):
1

A *Mercury project spacecraft that flew the second orbital mission in May 1962, with astronaut Scott *Carpenter. Aurora 7...

black holes

black holes   Reference library

The Oxford Companion to Cosmology

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Astronomy and Cosmology
Length:
1,944 words
Illustration(s):
2

Black holes are amongst the most enigmatic objects predicted by modern physics. They are regions of space-time where the curvature

black-body spectrum

black-body spectrum   Reference library

The Oxford Companion to Cosmology

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Astronomy and Cosmology
Length:
535 words
Illustration(s):
1

A black-body is a perfect absorber and emitter of radiation. When placed in a bath of radiation, a black-body alters

black-body radiation

black-body radiation   Quick reference

A Dictionary of Astronomy (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
123 words
Illustration(s):
1

The thermal radiation that would be emitted by a *black body. Black-body radiation has a characteristic spectrum, described by ...

Bondar, Roberta

Bondar, Roberta (1945– )   Quick reference

A Dictionary of Space Exploration (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
160 words
Illustration(s):
1
Canada’s first female *astronaut and first neurologist in *space. The Ontario native was admitted as a Fellow of the Royal College of Physicians and Surgeons of Canada in neurology in ... ... More
Boomerang experiment

Boomerang experiment   Reference library

The Oxford Companion to Cosmology

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Astronomy and Cosmology
Length:
706 words
Illustration(s):
3

The Boomerang experiment, a rather contrived acronym standing for Balloon Observations Of Millimetric Extragalactic Radiation And Geophysics, was the most

braneworld

braneworld   Reference library

The Oxford Companion to Cosmology

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Astronomy and Cosmology
Length:
1,567 words
Illustration(s):
2

The braneworld is a contemporary picture of our Universe, which speculates that our visible Universe may be confined to

butterfly diagram

butterfly diagram   Quick reference

A Dictionary of Astronomy (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
103 words
Illustration(s):
1
A graph on which the latitudes of sunspots are plotted against time. It shows how spots migrate from higher latitudes (30–40° north or south) towards the equator (latitude 5° or so) ... More
Canadarm

Canadarm   Quick reference

A Dictionary of Space Exploration (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
243 words
Illustration(s):
1
A system used by the space shuttle and * International Space Station (ISS) to deploy or recover satellites and other payloads. It is also used to move ... More
Cassegrain telescope

Cassegrain telescope   Quick reference

A Dictionary of Astronomy (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
149 words
Illustration(s):
1

A reflecting telescope in which a convex secondary mirror reflects light to a focus through a hole in the primary mirror; it is an adaptation of the ...

Cassini–Huygens

Cassini–Huygens   Quick reference

A Dictionary of Space Exploration (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
359 words
Illustration(s):
1

A space probe developed jointly by NASA and the European Space Agency to explore the planet *Saturn. Cassini was launched on ...

celestial sphere

celestial sphere   Quick reference

A Dictionary of Space Exploration (3 ed.)

Reference type:
Subject Reference
Current Version:
2018
Subject:
Science and technology, Astronomy and Cosmology
Length:
145 words
Illustration(s):
1
An imaginary sphere surrounding the Earth, on which the celestial bodies seem to lie. The positions of bodies such as stars, planets, and galaxies are specified by their coordinates on the ... More

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