Whois & Analysis for skyandtelescope.com

Astrophotography is a specialized type of photography for recording photos of astronomical objects and large areas of the night sky.

The first photograph of an astronomical object (the Moon) was taken in 1840, but it was not until the late 19th century that advances in technology allowed for detailed stellar photography.

Besides being able to record the details of extended objects such as the Moon, Sun, and planets, astrophotography has the ability to image objects invisible to the human eye such as dim stars, nebulae, and galaxies.

This is done by long time exposure since both film and digital cameras can accumulate and sum light photons over these long periods of time.

Astronomy (from Greek: αστρονομία) is a natural science that studies celestial objects and phenomena.

It applies mathematics, physics, and chemistry, in an effort to explain the origin of those objects and phenomena and their evolution.

Objects of interest include planets, moons, stars, galaxies, and comets; while the phenomena include supernovae explosions, gamma ray bursts, and cosmic microwave background radiation.

More generally, all astronomical phenomena that originate outside Earth's atmosphere are within the purview of astronomy.

A related but distinct subject, physical cosmology, is concerned with the study of the Universe as a whole.

A telescope is an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light).

The first known practical telescopes were invented in the Netherlands at the beginning of the 1600s, by using glass lenses.

They found use in both terrestrial applications and astronomy.

A podcast is an episodic series of digital media files which a user can set up so that new episodes are automatically downloaded via web syndication to the user's own local computer or portable media player.

An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the power of a signal (a time-varying voltage or current).

An amplifier functions by taking power from a power supply and controlling the output to match the input signal shape but with a larger amplitude.

In this sense, an amplifier modulates the output of the power supply based upon the properties of the input signal.

An amplifier is effectively the opposite of an attenuator: while an amplifier provides gain, an attenuator provides loss.