NEWS: Astronomy, Space, Science |
History of Buhl Planetarium and Institute of Popular Science, Pittsburgh |
Definitions by Celestial Objects: Earth, Moon, Planets, Minor Planets (Dwarf Planets, Asteroids/Planetoids), Stars, Star Clusters, Meteorology/Weather
Glossary of Meteorology/Weather Terms
Alphabetical Listing of Definitions --
Annular Solar Eclipse *** Tips for Safe Viewing: Eclipse of the Sun / Solar Eclipse
Aphelion of Earth
Apogee of Moon
Apparition - An appearance; in astronomy, the period of observation of a returning periodic comet. (answers.com)
Astronomical Twilight --- Twilight
Astronomical Magnitude - See Magnitude
Astrophysics developed by nineteenth century Allegheny Observatory Astronomers Samuel Pierpont Langley and James E. Keeler.
Beehive--Star Cluster (Open): Beehive (M44)
Blue Moon *** Calendar Blue Moon
Calendar Blue Moon *** Blue Moon
Celsius (temperature scale) *** Centigrade
Civil Twilight --- Twilight
Clusters of Stars -- Star Cluster (Open): Beehive (M44) *** Star Cluster (Open): M35 *** Star Cluster (Open): Pleiades (M45)
Conjunction -- Inferior Conjunction *** Superior Conjunction
Cross-Quarter Day - Astronomical (Traditional) *** Dates and Times of Actual Cross-Quarter Days
Culminate/Culmination (Astronomy definition)
Direct and Retrograde motion of planetary bodies - Also see Motion (of planetary bodies)
Double-shadow transit - Shadows of two objects transiting or crossing the visible disk of a third object. Often used in reference to shadows of two of the Galilean moons crossing the visible disk of the Planet Jupiter.
Eclipse --
Lunar Eclipse ***
Penumbral Eclipse ***
Solar Eclipse ***
Annular Solar Eclipse ***
Tips for Safe Viewing: Eclipse of the Sun / Solar Eclipse
Elongation ***
Greatest Elongation
Equinox --
Vernal Equinox ***
Autumnal Equinox
First Quarter Moon Phase
Full Moon Phase
Greatest Elongation ***
Elongation
Heliocentric:
Link 1 ***
Link 2
Last (or "Third") Quarter Moon Phase
Minimum (Astronomy definition) - minimum brightness observed or predicted, often for a variable star.
Moon of Earth --
Phases:
Phases of Moon Defined --
New Moon ***
First Quarter ***
Full Moon ***
Last (or "Third") Quarter
Motion (of planetary bodies) -
Direct and Retrograde motion ***
Stationary (Astronomy definition)
Nautical Twilight --- Twilight
New Moon Phase
Orbit ***
Planetary Orbit
Parallax - Actually motion parallax
Perigee of Moon
Perihelion ***
Perihelion ***
Perihelion of Earth
Phases of Moon --
Phases of Moon Defined --
New Moon ***
First Quarter ***
Full Moon ***
Last (or "Third") Quarter
Planet ***
Dwarf Planet ***
Minor Planet ***
Asteroid ***
Planetoid
Quadrature (includes definition for Astronomy)
Retrograde and Direct motion of planetary bodies -
Link 1 -
Link 2 - Also see
Motion (of planetary bodies)
Solar Eclipse ***
Annular Solar Eclipse ***
Tips for Safe Viewing: Eclipse of the Sun / Solar Eclipse
Solstice --
Summer Solstice ***
Winter Solstice
Stationary (Astronomy definition) - Also see
Motion (of planetary bodies)
Sun ***
Sun of Earth
Tides--
Lunar Tides
"Third" (or Last) Quarter Moon Phase
Transit (astronomical):
Link 1 ***
Link 2 *** Also see
Double-shadow transit
Planets (Planet defined)
Planet Earth --
Aphelion ***
Perihelion ***
Perihelion of Earth
**
Moon of Earth --
Apogee ***
Perigee
*** Moon Phases:
Phases of Moon Defined --
New Moon ***
First Quarter ***
Full Moon ***
Last (or "Third") Quarter
Pluto - See
Dwarf Planet Pluto
Eris - See
Dwarf Planet Eris
Xena - See
Dwarf Planet Eris
Ceres - See
Dwarf Planet 1 Ceres
Minor Planets (Dwarf Planets and Asteroids/Planetoids)
List of solar system bodies formerly considered planets
Xena - See
Dwarf Planet Eris
1 Ceres (Dwarf Planet)
Star Cluster (Open): Beehive (M44)
Star Cluster (Open): Pleiades (M45)
(Definitions of Minor Planet, Dwarf Planet, Asteroid, Planetoid)
NEWS: Astronomy, Space, Science
History of Buhl Planetarium and Institute of Popular Science, Pittsburgh
