The telescope that observed the debris disk of HD 92945 was launched into low Earth orbit in what year?
HD 92945 HD 92945 is a K-type main sequence star in the constellation of Hydra. Its apparent visual magnitude varies by 0.02 magnitudes and is approximately 7.72 at maximum brightness. A debris disk has been observed around the star by coronagraphic imaging, using the ACS and NICMOS instruments on the Hubble Space Telescope. It appears to extend 45 to 175 astronomical units from HD 92945 and is inclined at approximately 29 degrees.
Kosmos 931 Kosmos 931 (Russian: Космос 931 meaning "Cosmos 931") was a Soviet US-K missile early warning satellite which was launched in 1977 as part of the Soviet military's Oko programme. The satellite was designed to identify missile launches using optical telescopes and infrared sensors.