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Observational astronomy is
focused on
acquiring data from
observations of
astronomical objects. This data is then
analyzed using basic principles of physics...
- An
astronomical object,
celestial object,
stellar object or
heavenly body is a
naturally occurring physical entity, ****ociation, or
structure that exists...
- The
astronomical unit (symbol: au, or AU) is a unit of
length defined to be
exactly equal to 149,597,870,700 m. Historically, the
astronomical unit was...
- The
International Astronomical Union (IAU; French:
Union astronomique internationale, UAI) is a non-governmental
organisation with the
objective of advancing...
- The
Prague astronomical clock or
Prague Orloj (Czech: Pražský
orloj [praʃskiː orloj]) is a
medieval astronomical clock attached to the Old Town Hall in...
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question marks, boxes, or
other symbols.
Astronomical symbols are
abstract pictorial symbols used to
represent astronomical objects,
theoretical constructs and...
- An
astronomical clock, horologium, or
orloj is a
clock with
special mechanisms and
dials to
display astronomical information, such as the
relative positions...
- (also
known as the refcode) is a
compact identifier used by
several astronomical data
systems to
uniquely specify literature references. The Bibliographic...
- A year is the time
taken for
astronomical objects to
complete one orbit. For example, a year on
Earth is the time
taken for
Earth to
revolve around the...
- The
Babylonian astronomical diaries are a
collection of
Babylonian cuneiform texts that
contain systematic records of
astronomical observations and political...
