Lunar astronomy ( focused on the Moon) Planetary astronomy, the planets, Galactic- and so on on the basis of Celestial bodies under study and observation. There is also Radio Astronomy, a stepchild of Radar in a sense.

Gerald North has written:

'Astronomy in depth' -- subject(s): Astronomy

'Mastering Astronomy'

'Astronomy explained' -- subject(s): Astronomy

'Mastering astronomy'

The modern uses of radar are highly diverse, including air traffic control, radar astronomy, air-defense systems, antimissile systems; marine radars to locate landmarks and other ships; aircraft anticollision systems; ocean surveillance systems, outer space surveillance and rendezvous systems; meteorological precipitation monitoring; altimetry and flight control systems; guided missile target locating systems; and ground-penetrating radar for geological observations. High tech radar systems are associated with digital signal processing and are capable of extracting objects from very high noise levels.

Either Astrophysics or Astrology/Astronomy.

Probably a satellite used for astronomy observations.

Probably a satellite used for astronomy observations.

Probably a satellite used for astronomy observations.

Probably a satellite used for astronomy observations.