1. Any celestial body orbiting around
a planet or star
3. the luminous cloud of particles
surrounding the frozen nucleus of
a comet; forms as the comet
approaches the sun and is warmed
4. A star that is smaller than a
planet and has a mass equivalent
to less than one-tenth of the Suns
mass
5. The natural satellite of the Earth
6. The second smallest planet and the
farthest known from the sun; has
the most elliptical orbit of all
the planets
8. A typical star that is the source
of light and heat for the planets
in the solar system
10. A giant planet with a ring of ice
particles; the 8th planet from the
sun
11. The 3rd planet from the sun
12. The smallest planet and the
nearest to the sun
14. Astronomical telescope that picks
up electromagnetic radiations in
the radio-frequency range from
extra-terrestrial sources
15. An intense short burst of gamma
|
radiation from unknown
astronomical sources, occurring
several times a year
Down
2. The 4th largest of Jupiter's satellites; covered with a smooth shell of frozen water |
elliptical orbit 7. The largest of Jupiter's satellites 8. Having an orbit farther from the sun than the Earth's orbit 9. The 4th planet from the sun 11. The precise date that is the point of reference for which information 13. The second nearest planet to the sun |
