light bucket

light bucket

1. astronomy A telescope whose lens (the "bucket") has a large aperture so as to gather and focus a large amount of photons, thereby producing brightened images of normally imperceptible objects. I'm always left amazed after using the light bucket at the university and glimpsing images of the cosmos way out in the dark of space.
2. By extension, such a lens (as on a camera or telescope) that has a large enough aperture to enhance images in low-level light. What's truly special about the light bucket on this camera is that it maintains a relatively high shutter speed while still capturing clear shots in low-light environments.
See also: bucket, light
References in periodicals archive ?
* AL LAMPERTI has been going deep since 1985 when he acquired his first light bucket. He and other members of the Delaware Valley Amateur Astronomers developed the AGN Observing Program for the Astronomical League.
The Kepler observatory's single instrument is a very sensitive photometer -- "a big light bucket," as NASA researcher Martin Still describes it -- that would be overwhelmed by the light of the sun.
At meetings, members view the stars through the society's powerful 15-inch Dobsonian reflector telescope - a "light bucket" telescope - and watch NASA and space-related videos, among other activities.
Kiruna's ore is of a constant Fe content so using a production monitoring system as part of the automation package would immediately show light bucket load.
Astrosat joins several other X-ray observatories already in orbit: Chandra makes out fine details in low-energy X-ray images, NuSTAR brings high-energy X-rays into sharp focus, Swift monitors the sky for distant explosions bright in X-rays and gamma rays, and ESA's XMM-Newton is a light bucket for low-energy X-rays.
Herschel kicks the light bucket. On April 29th the largest infrared space telescope yet launched ran out of cryogenic coolant, permanently ending its science operations.
The scope is far more than just a big light bucket, and it's a real joy to use it for observing planetary detail.
The 72-inch (1.8-meter) "light bucket" telescope, and its unique high-speed receivers, could detect laser pulses made by our own current technology from as far as several thousand light-years.
Many of the featured objects are familiar showpieces requiring just binoculars or a small refractor; a few are obscure challenges for an experienced observer with a 12-inch or larger light bucket. The brief descriptions have a conversational tone and flow smoothly with a nice balance of elegance and warmth.
Impatient with the lingering twilight, I grabbed a 220x eyepiece and aimed my light bucket at the Beehive.
From NGC 6886, I pushed my light bucket another 2[degrees] eastward to snare NGC 6905 (20h 22.4m, +20[degrees] 06').
a very large Dobsonian-mounted telescope syn: light bucket
Rearward, LED halo lights have been installed in the original tail light buckets.
Bartlett: $3 Miller/Coors Light 20-ounce jumbo drafts, $14 Miller/Coors Light buckets, $5 Absolut Bloody Mary, $5 jumbo Long Island Ice Tea