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Astronomical Glossary
Click here for links to the
Moon, planets, star clusters, stars, and other astronomical terms referred to in this Astronomical Calendar.
Planets Defined --
Planet Mercury *** Planet Venus *** 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
Planet Mars *** Planet Jupiter *** Planet Saturn *** Planet Uranus *** Planet Neptune *** Dwarf Planet Pluto
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* Mon., Jan. 21, 10:00 p.m. EST - Jupiter 0.5 degree north of the Moon; occultation: French Polynesia, Pitcairn Islands, Galapagos Islands, central portion of South America.
* Mon., Feb. 18, 7:00 a.m. EST - Jupiter 0.9 degree north of the Moon; occultation: Kerguelen Islands in the southern Indian Ocean, Wilkes Land of eastern Antarctica, southern portion of Australia, Tasmania.
* Mon., Feb. 18, 4:00 p.m. EST - Asteroid Vesta 0.3 degree north of the Moon; occultation: central portion of South America, Sierra Leone, Liberia, southern half of the Ivory Coast, southwestern portion of Africa.
* Thur., March 28, 11:00 a.m. EDT - Star Spica 0.01 degree south of the Moon; occultation: Southeast Asia, Philippines, Indonesia, northern portion of Australia, Melanesia, French Polynesia.
* Thur., April 25, 3:57 p.m. EDT - Moon Phase: Full Moon (Pink Moon).
* Thur., April 25, 4:07:30 p.m. EDT - Time of greatest eclipse for the
Partial Eclipse of the Moon / Lunar Eclipse, visible in most of the Eastern Hemisphere of Earth, with a portion of the eclipse visible in the eastern section of South America, eastern half of the Atlantic Ocean and the extreme western portion of the Pacific Ocean.
This Eclipse of the Moon or Lunar Eclipse is safe to view with the naked-eye, binoculars, or a telescope.
* Thur., May 9, 8:28 p.m. EDT - Moon Phase: New Moon - Lunation 1118.
* Wed., May 22, 7:00 a.m. EDT - Star Spica 0.005 degree south of the Moon; occultation: Southeast Asia, Philippines, Indonesia, northeastern portion of Australia, Melanesia, French Polynesia, Pitcairn Islands.
* Sat., May 25, 12:10:00 a.m. EDT - Time of greatest eclipse for the Penumbral Eclipse of the Moon, visible from most of the Americas and western Africa. This Lunar Eclipse or Eclipse of the Moon is safe to view with the naked-eyes, binoculars, or a telescope. However, this particular Penumbral Lunar Eclipse will be so faint to be practically undetectable, without professional observing equipment !
* Sat., May 25, 12:25 a.m. EDT - Moon Phase: Full Moon (Flower Moon).
* Sat., May 25, 10:00 p.m. EDT - Moon at perigee: 358,377 kilometers.
Large tides predicted.
* Mon., Aug. 12, 5:00 a.m. EDT - Star Spica 0.6 degree south of the Moon; occultation: Central Asia, northern India, China, southern Japan, Southeast Asia, Philippines, Marshall Islands.
* Mon., Aug. 12, 2:00 p.m. EDT - Peak of
Perseid Meteor Shower, considered one of the best of the year! (Aug. 11 to 13).
Also see:
NASA: Perseid Meteor Shower Has Most Fireballs.
* Sun., Sept. 8, 5:00 p.m. EDT - Venus 0.4 degree north of the Moon; occultation: Kiribati, French Polynesia, Pitcairn Islands, southern portion of South America, Falkland Islands.
* Fri., Oct. 18, 7:38 p.m. EDT - Moon Phase: Full Moon - Hunter's Moon.
* Fri., Oct. 18, 7:50:16.9 p.m. EDT - Time of greatest eclipse during
Penumbral Lunar Eclipse, visible in most of the world, except Australia, Japan, Pacific Ocean islands, a large portion of Alaska, most of Siberia, and a small portion of northeastern China.
More info.
* Sun., Nov. 3 - Diwali or Deepavali - Religious holiday of India; on the Hindu calendar, the five-day festival of Deepavali is centered on the New Moon day that ends the month of Ashwin and begins the month of Kartika.
* Sun., Nov. 3, 2:00 a.m. Prevailing Time (Daylight Saving Time) -
DAYLIGHT SAVING TIME ENDS - Change in Federal law thus that return to
Standard Time occurs
2:00 a.m. Daylight Saving Time (which becomes 1:00 a.m. Standard Time) (First Sunday in November, 2:00 a.m. Prevailing Time).
Science of Daylight Saving Time.
* Sun., Nov. 3, 7:46:28.3 a.m. EST - Time of greatest eclipse for the
Hybrid Eclipse of the Sun / Hybrid Solar Eclipse visible in a path roughly from the center of the North Atlantic Ocean to the equator and running generally along the equator through the vast majority of Africa.
Pittsburgh: Slight Partial Solar Eclipse, with a maximum obscuration of the Sun by the Moon of ~ 5 percent at ~ 7:00 a.m. EST. This will be difficult to view, as the Sun rises at 6:52 a.m. EST.
NEVER LOOK DIRECTLY AT THE SUN OR A SOLAR ECLIPSE WITH A TELESCOPE, BINOCULARS, OR ANY OPTICAL AID--IT COULD LEAD TO IMMEDIATE BLINDNESS. VIEWING THE SUN OR A SOLAR ECLIPSE WITH THE NAKED-EYE COULD ALSO CAUSE EYE DAMAGE.
SAFE WAY TO VIEW SOLAR ECLIPSE OR ECLIPSE OF THE SUN.
* Sun., Nov. 3, 7:50.a.m. EST - Moon Phase: New Moon - Lunation 1124.
* Sun., Nov. 3, Sunset (Sunset in Pittsburgh: 5:14 p.m. EST) - Islamic New Year ( Muharram): Based on lunar calendar, but the New Moon must be observable ( astronomical considerations).
* Fri., Nov. 29, 12:00 Noon EST - Star Spica 0.9 degree south of the Moon; occultation: North America excluding Central America and southern Caribbean Sea islands.
* Thur., Dec. 26, 10:00 p.m. EST - Star Spica 1.1 degrees south of the Moon; occultation: northern section of Scandinavia, majority of the Russian Federation, Kazakhstan, Kyrgyzstan, Mongolia, and the northern section of China.
* Sat., Dec. 28, 8:00 p.m. EST - Saturn 0.9 degree north of the Moon; occultation: Kerguelen Islands, all of Antarctica except the Antarctic Peninsula.
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