DEEP-SKY
Meaning of DEEP-SKY in English
transcription, транскрипция: [ ˈdēp-ˌskī ]
adjective
Date: 1968
: relating to or existing in space outside the solar system
deep-sky objects
Merriam-Webster's Collegiate English vocabulary.
Энциклопедический словарь английского языка Merriam Webster.
2003