Helios

Helios-A and Helios-B are a pair of probes that were launched into heliocentric orbit to study solar processes. As a joint venture between German Aerospace Center (DLR) and NASA, the probes were launched from Cape Canaveral Air Force Station, Florida, on December 10, 1974, and January 15, 1976, respectively.

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Helios spacecraft 2

Luminosity of the zodiacal light along the orbit of Helios 2 as observed by the P16 photometer. The peak at 0.8 AU was caused by Comet West passing through the field of view.

Helios spacecraft

Auszeichnung für drei Physiker vom Institut für Reine und Angewandte Kernphysik der Christian-Albrechts-Universität (CAU) durch die amerikanische Weltraumbehörde NASA (Kiel 67.509)

Bottom view of the Helios spacecraft showing the three Zodiacal light photometers P15, P30, and P90 as well as the South (S) micrometeoroid sensor.

Brightness of the zodiacal light along the orbit of Helios 1 and 2 as observed by the P16 photometer; blue: inward, red: outward motion. The peak at 0.8 AU was caused by Comet West passing through the field of view.

Brightness of the zodiacal light along the orbits of Helios 1 and 2 as observed by the P15 photometers; blue: inward, red: outward motion. The peak at 0.8 AU was caused by Comet West passing through the field of view.

Helios - Attitude control electronics

Type	Subtype	Date	Description	Notes	Source
commons	image		Helios spacecraft 2		Commons
commons	image		[[:File:HeliosP16 radial profile.jpg|Luminosity of the zodiacal light along the orbit of Helios 2 as observed by the P16 photometer. The peak at 0.8 AU was caused by Comet West passing through the field of view.]]		Commons
commons	image		Helios spacecraft		Commons
commons	image		Auszeichnung für drei Physiker vom Institut für Reine und Angewandte Kernphysik der Christian-Albrechts-Universität (CAU) durch die amerikanische Weltraumbehörde NASA (Kiel 67.509)		Commons
commons	image		Bottom view of the Helios spacecraft showing the three Zodiacal light photometers P15, P30, and P90 as well as the South (S) micrometeoroid sensor.		Commons
commons	image		[[:File:HeliosZLI.jpg|Brightness of the zodiacal light along the orbit of Helios 1 and 2 as observed by the P16 photometer; blue: inward, red: outward motion. The peak at 0.8 AU was caused by Comet West passing through the field of view.]]		Commons
commons	image		Brightness of the zodiacal light along the orbits of Helios 1 and 2 as observed by the P15 photometers; blue: inward, red: outward motion. The peak at 0.8 AU was caused by Comet West passing through the field of view.		Commons
commons	image		Helios - Attitude control electronics		Commons