
1) Antares or betelgeuse 2) Antares or Proxima Centauri 3) Many a red dwarf 4) Red astronomical body 5) Red celestial body 6) Taiwanese brand
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https://www.crosswordclues.com/clue/mstar

Man-portable Surveillance and Target Acquisition Radar (MSTAR) is a lightweight all-weather battlefield Doppler radar operating in the J band. It is usually used by Artillery Observers to acquire and engage targets in bad visibility or at night. It is capable of detecting, recognizing and tracking helicopters, slow moving fixed-wing aircraft, trac...
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http://en.wikipedia.org/wiki/MSTAR
[Internet service provider] Mstar, originally headquartered in Murray, Utah but later relocated to Orem, Utah, was a fiber optic internet service provider in the state of Utah, USA. Mstar provided Internet, telephone (VoIP) and television services (IPTV) via fiber optics. Mstar was a provider of services over municipally owned backbones, na...
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http://en.wikipedia.org/wiki/Mstar_(Internet_service_provider)

Man-portable Surveillance and Target Acquisition Radar
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http://www.translationdirectory.com/glossaries/glossary262.php
No exact match found.