Lunar distance

Related to Lunar distance: Astronomical Unit

	See under Lunar.
	the angular distance of the moon from the sun, a star, or a planet, employed for determining longitude by the lunar method.

See also: Distance, Lunar

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.

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According to the agency's Center for Near Earth Object Studies (CNEOS), the massive space rock will approach the planet within a lunar distance of less than one.

125-Foot Asteroid Will Be Terrifyingly Close To Earth On Tuesday

The race would have taken more than a year, with the craft initially passing from west to east, then slowing to a stop in the sky as they reached geostationary orbit, before slowly moving east to west as they approached Lunar distance. (Betting shops would have made a fortune!)

Solar Sailing: In whichever way this may develop, 'solar sailing' looks like it will be an important part of our future in space, says Colin Ledsome CEng FIED

The asteroid was only discovered the night before and was due to come within 0.2 lunar distance of the centre of the Earth at around 15:30 UTC on Jan 27.

Close pass of Earth by asteroid 2012 BX34

This is about one third the lunar distance from Earth, and effectively inside the Sun's corona where temperatures are a few million degrees Centigrade.

Comet lovejoy, the great Christmas comet of 2011

"Unfortunately, we don't get the group together of the original 24 that reached lunar distance - 18 of us are still alive - as much as I think we ought to," said Buzz.

SPACE RAGE; Astronaut Buzz Aldrin punched interviewer for claiming moon landing was faked

From the basics of coordinates, to sun sight reductions and lunar distance sights, to sextant adjustments and altitude corrections, and an exhaustive wealth of appendices, Celestial Navigation in the GPS Age is an absolute "must-have" for offshore navigators and a readily accessible self-teaching tool.

Celestial Navigation in the GPS Age

Her framing underreports the feasibility of the chronometer and its astronomical rival, the lunar distance method, which each satisfied different criteria.

Lone Geniuses in Popular Science: The Devaluation of Scientific Consensus

According to the agency's Center for Near Earth Object Studies (CNEOS), the asteroid might approach the planet at a lunar distance of only one.

144ft Asteroid Will Come Extremely Close To Earth On Sunday

NEO Earth close approaches during 2019 NEO designation Date of closest Close approach Close approach velocity (km/s) Earth approach LD AU (2012 KT12) May 18 1.00 0.00257 3.95 (2016 NO56) Jul 07 1.00 0.00258 12.2 (2016 GE1) Apr 04 1.11 0.00285 10.13 (2015 EG) Mar 04 1.15 0.00295 9.64 (2017 KP27) Sep 26 2.03 0.00522 4.8 (2013 YM2) Jan 09 6.21 0.01596 4.28 (2017 PV25) Feb 12 7.09 0.01821 6.09 (2017 SL16) Sep 21 7.49 0.01925 6.47 NEO designation Estimated diameter (2012 KT12) 15-33 m (2016 NO56) 20-44 m (2016 GE1) 13-28 m (2015 EG) 19-43 m (2017 KP27) 18-41 m (2013 YM2) 15-34 m (2017 PV25) 32-71 m (2017 SL16) 18-41 m Key: LD: Lunar Distance, average distance between the Earth and Moon, about 0.00257 AU.

Asteroids

Several asteroids were currently visible, and Dr Moore referred to the Near Earth object 2005 YU55 which had passed within 0.85 lunar distance of the Earth on Nov 8.

Ordinary Meeting, 2011 November 19: held at the Royal Astronomical Society, Burlington House, Piccadilly, London WI

Hilaire Method of navigation; sun sight reductions; sights of other celestial bodies; special sights; lunar distance sights; the attitude observations; sextant checks and adjustments; operations at sea; insights from the navigation triangle; and concludes with exercises to reinforce understanding and build confidence.

Celestial Navigation In The GPS Age

($10 shareware) calculates the Moon's rise, set, and transit times, as well as local parallax and lunar distance. Sol!