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Live Webcast of 3 Moon Shadows on Jupiter

Date: Friday, January 23, 2015

Location: Griffith Observatory, Los Angeles, CA, US,

WHAT: A rare celestial event will take place on Friday, January 23, 2015, when the shadows of three of Jupiter’s largest moons will fall upon Jupiter at the same time. The shadows of these three moons -- Io, Europa, and Callisto -- will cross Jupiter’s disk throughout the evening. Three moon shadows will not appear simultaneously on Jupiter again, as seen from the United States, until 2032. An animation that shows what the triple-shadow transit will look like is on Griffith Observatory’s YouTube channel at

Griffith Observatory will provide a live online broadcast of the Jupiter triple-shadow transit on its Livestream channel at The webcast will begin at 8:30 p.m. PST and conclude at 11:00 p.m. PST. A time-lapse video of the event will be available in the days that follow the event on Griffith Observatory’s YouTube channel.

Telescopes from the Los Angeles Astronomical Society and the Planetary Society will join Griffith Observatory’s telescopes to witness the event starting at 7:11 p.m. Griffith Observatory will close as usual at 10:00 p.m., but the lawn will remain open until 11:00 p.m. The inbound Griffith Park gate at Vermont Avenue will also close at 10:00 p.m., as usual, but visitors who are already at Griffith Observatory may remain through the end of the triple-shadow transit.

The Observatory’s regular monthly star party will be held the following night, January 24, 2015, during which time visitors will be able to see the planets Mercury, Venus, Mars, Uranus, and Neptune, as well as the Moon and comet Lovejoy, C/2014 Q2.

WHERE: Griffith Observatory, 2800 East Observatory Road, Los Angeles, CA 90027

WHEN: Friday, January 23, 2015, from 8:30 p.m. to 11:00 p.m. PST (live webcast) [Note: PST is 8 hours behind UTC/GMT, so the event begins at 04:30 UTC/GMT on January 24th.]

Amy Roberts / Bonnie Winings
SWPR Group
+1 (818) 760-7131

Griffith Observatory is owned and operated by the City of Los Angeles, Department of Recreation and Parks. The Observatory is located on the south slope of Mount Hollywood in Griffith Park. The building is open to the public six days a week (Tuesday -- Sunday), with free parking and free admission. There is a nominal charge to see the shows in the Samuel Oschin Planetarium. Free public telescope viewing is available every evening the Observatory is open and the sky is clear.

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