- 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...
- An
astronomical object,
celestial object,
stellar object or
heavenly body is a
naturally occurring physical entity, ****ociation, or
structure that exists...
- An
astronomical catalog or
catalogue is a list or
tabulation of
astronomical objects,
typically grouped together because they
share a
common type, morphology...
-
Observational astronomy is
focused on
acquiring data from
observations of
astronomical objects. This data is then
analyzed using basic principles of physics...
- An
astronomical clock, horologium, or
orloj is a
clock with
special mechanisms and
dials to
display astronomical information, such as the
relative positions...
-
Astronomical chronology, or
astronomical dating, is a
technical method of
dating events or
artifacts that are ****ociated with
astronomical phenomena. Written...
- The
Astronomical Journal (often
abbreviated AJ in
scientific papers and references) is a peer-reviewed
monthly scientific journal owned by the American...
- The
Astronomical Almanac is an
almanac published by the
United Kingdom Hydrographic Office; it also
includes data
supplied by many
scientists from around...
- 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...
