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Credit & Copyright: Paul Boltwood
Explanation:
How far can you see from your own backyard?
Across the Solar System, even across our Galaxy,
these sights are not difficult.
Recently, however, amateur Paul Boltwood
gazed across the universe.
His record setting image is shown above in false color.
Boltwood imaged sources more faint than magnitude 24 in response to a challenge made to
amateur astronomers by
Yale Astronomy Professor Bradley Schaefer.
Objects this dim tend to be
galaxies billions of light years away.
Although professionals have
recently recovered objects
as dim as magnitude 30, Boltwood's image rivals even the
best professional efforts of only a few decades ago.
Since then, photon-catching
Charge Coupled Devices (CCDs) have allowed
high efficiency frames to be added together.
As evidence, Boltwood used only a 16-inch telescope,
but co-added 767 exposures each lasting only two minutes.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: universe - CCD
Publications with words: universe - CCD
See also:
- APOD: 2024 December 1 Á Cosmic Latte: The Average Color of the Universe
- APOD: 2024 October 20 Á Dark Matter in a Simulated Universe
- APOD: 2024 July 1 Á Time Spiral
- APOD: 2023 December 31 Á Illustris: A Simulation of the Universe
- APOD: 2023 July 5 Á A Map of the Observable Universe
- APOD: 2023 June 29 Á A Message from the Gravitational Universe
- APOD: 2023 June 4 Á Color the Universe