You are looking at 1-20 of 79 entries  for:

  • All: Science 2.0 x
  • Astronomy and Cosmology x
  • Science and technology x
clear all

View:

near infrared

near infrared  

Infrared radiation which has a wavelength between 0.7μm and 2.5μm. Near-infrared is subdivided into very-near infrared (0.7μm–1μm) and short-wave infrared (1.0μm–2.5μm). Photographic films respond to ...
Castalia

Castalia  

A solar system near-Earth asteroid (No. 4 769), measuring 1.8 × 0.8 km; approximate mass 1011 kg; orbital period 0.41 years. It is a double-lobed object, each lobe about 0.75 km in diameter.
Prometheus

Prometheus  

One of the lesser satellites of Saturn, discovered in 1980 by Voyager 1, with a radius measuring 74 × 50 × 34 km; mass 0.0014 × 1020 kg; mean density 270 kg/m3; visual albedo 0.6.
Hyperion

Hyperion  

One of the major satellites of Saturn, with a radius measuring 185 × 140 × 113 km; visual albedo 0.19–0.25. It was discovered in 1848 by W. Bond.
Iapetus

Iapetus  

One of the major satellites of Saturn, with a radius of 718 km; mass 15.9 × 1020 kg; mean density 1020 kg/m3; visual albedo 0.05–0.5. It was discovered in 1671 by G. D. Cassini.
Janus

Janus  

One of the lesser satellites of Saturn, with a radius measuring 99.3 × 95.6 × 75.6 km; mass 0.0198 × 1020 kg; mean density 650 kg/m3; visual albedo 0.8. It was discovered in 1966 by A. Dolfus, Gerard ...
Pandora

Pandora  

One of the lesser satellites of Saturn, discovered in 1980 by Voyager 1, with a radius measuring 55 × 44 × 31km; mass 0.0013 × 1020 kg; mean density 420 kg/m3; visual albedo 0.9.
Epimetheus

Epimetheus  

One of the lesser satellites of Saturn, discovered in 1979 by Pioneer II, with a radius measuring 69 × 55 × 55km; mass 0.0055 × 1020kg; mean density 630kg/m3; visual albedo 0.8.
Mimas

Mimas  

One of the major satellites of Saturn, with a radius of 198.8 km; mass 0.375 × 1020 kg; mean density 1140 kg/m3; visual albedo 0.5. It was discovered in 1789 by Sir William Herschel.
Hinode

Hinode  

A joint Japanese–ESA–US satellite for solar observation, known as Solar-B before its launch into polar orbit around the Earth in 2006 September. Its prime purpose is to study the generation and ...
Atlas

Atlas  

One of the lesser satellites of Saturn, discovered in 1980 by Voyager 1, with a radius measuring 18.5 × 17.2 × 13.5 km; visual albedo 0.9.
Hyakutake

Hyakutake  

A comet with an orbital period of more than 65000 years; perihelion date 1 May 1996; perihelion distance 0.230AU.
chondrule

chondrule  

Small (0.1–2.0 mm), glassy, spherical to subspherical droplets, diagnostic of chondritic meteorites. They are thought to have been produced by the melting and sudden quenching of pre-existing ...
Exosat

Exosat  

The first ESA mission entirely devoted to X-ray astronomy, launched in 1983 May; the name is short for European X-ray Observatory Satellite. Exosat carried three instruments: an imaging telescope ...
Infrared Space Observatory

Infrared Space Observatory  

An ESA satellite for infrared astronomy, launched in 1995 November into a 24-hour elliptical orbit. ISO carried a 0.6-m helium-cooled Ritchey–Chrétien telescope equipped with a camera (2.5–17 μm), an ...
Calypso

Calypso  

One of the lesser satellites of Saturn, discovered in 1980 by Voyager 1, with a radius measuring 15 × 8 × 8 km; visual albedo 0.6.
Dione

Dione  

One of the major satellites of Saturn, with a radius of 560 km; mass 10.52 × 1020 kg; mean density 1440 kg/m3; visual albedo 0.7. It was discovered in 1684 by G. D. Cassini.
Phoebe

Phoebe  

One of the lesser satellites of Saturn, with a radius measuring 115 × 110 × 105 km; visual albedo 0.06. Its orbit is retrograde. It was discovered in 1898 by W. Pickering.
Telesto

Telesto  

One of the lesser satellites of Saturn, discovered in 1980 by Voyager 1, with a radius measuring 15 × 12.5 × 7.5 km; visual albedo 0.5.
Helene

Helene  

One of the lesser satellites of Saturn, discovered in 1980 by Voyager 1, with a radius of 16 km; visual albedo 0.7.

View: