light-hour

(redirected from light hour)
Also found in: Dictionary, Thesaurus, Wikipedia.
Related to light hour: Light-day

light-hour

[′līt‚au̇·ər]
(astronomy)
The distance traveled by light in 1 hour in a vacuum.
References in periodicals archive ?
Therefore with this filter, we removed only nine rows, including savings as a percentage of wasted light hours, energy costs, total building energy, or energy per workstation.
A third group was exposed to "short days" of 8 light hours and 16 dark hours and a fourth group was exposed to the same "short days" but during the dark hours was exposed to a half-hour interval of light.
Detective Inspector Nigel Jones said, "This incident happened during day light hours on a summer evening and we know there were a number of young people and adults in the area at the time.
To a layman like me, it seems almost impossible that light reflected from a body that lies "much farther from the star than Pluto does from the sun" could be seen from Earth at a distance of 450 light years, when Pluto, only 6 light hours away, reflects so little light to Earth ("Stellar Question: Extrasolar planet or failed star?
But the mistake only came to light hours later when his caddie JP Fitzgerald called the tournament office to check what Ricky's tee time was for the final round.
The other solution is to make the unit efficient enough during day light hours that the volume of oxygen needed can be generated well before the seal fails.
Our solar system is about 12 light hours across, which is small compared to our galaxy, which they estimate to be 100,000 light years across - just one light year is about 9,460 billion kilometres across.
The pituitary in return issues more hormonal messages to the rest of the body, telling it to change accordingly with the decrease in light hours or daylight, or with changes in temperature.
After a video surfaced of Bassil calling Berri -- who is widely supported in Abidjan -- a "thug" Monday, another video came to light hours later showing the foreign minister claiming that Berri threatened to close banks that are helping fund the conference.
Locating pass or rivermouth tarpon is best done during low light hours at dawn or dusk, as fish will be most actively rolling during these times.
This offence took place in day light hours in a relatively busy area of Leam Lane.