- 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...
- The
Prague astronomical clock or
Prague Orloj (Czech: Pražský
orloj [praʃskiː orloj]) is a
medieval astronomical clock attached to the Old Town Hall in...
- The
Astronomical Journal (often
abbreviated AJ in
scientific papers and references) is a peer-reviewed
monthly scientific journal owned by the American...
- The
Astronomical League is an
umbrella organization of
amateur astronomy societies.
Currently their membership consists of over 330
organizations across...
- An
astronomical interferometer or
telescope array is a set of
separate telescopes,
mirror segments, or
radio telescope antennas that work
together as a...
-
Engineering on an
astronomical scale, or
astronomical engineering, i.e.,
engineering involving operations with
whole astronomical objects (planets, stars...
