(from Gr****: ἀστρονομία) is a natural science
that studies celestial objects
and phenomena. It uses mathematics, physics, and chemistry
is the scientific study
may also refer
(magazine), an amateur American astronomy periodical
- the photosphere, respectively. All heavier
elements, called metals
for less than 2% of the m****, with oxygen
(roughly 1% of the...
- Indian astronomy
has a long history stretching
from pre-historic to modern
times. Some of the earliest roots
of Indian astronomy
can be dated
to the period...
- In astronomy
, a syzygy
(/ˈsɪzɪdʒi/; from the Ancient
Gr**** σύζυγος, suzugos, 'yoked together') is a roughly
is the oldest
of the natural
back to antiquity, with its origins
in the religious, mythological, cosmological, calendrical...
- for precession formulae
and mean elements
for the Moon and planets". Astronomy
and Astrophysics. 282 (2): 663–683. Bibcode:1994A&A...282..663S. Williams...
(ISSN 0091-6358) is a monthly American magazine about astronomy
. Targeting amateur
astronomers, it contains columns
on sky viewing, reader-submitted...
H. (1982). The physical
universe: an introduction
(12th ed.). University Science
Books. p. 426. ISBN 978-0-935702-05-7...
- polymath, from Pisa. Galileo
has been called
the "father of observational astronomy
", the "father of modern
physics", the "father of the scientific