Strong's #792: aster (pronounced as-tare')
 probably from the base of 4766; a star (as strown over the sky), literally or figuratively:--star.
Thayer's Greek Lexicon:
 ̓́ 
 
  astēr 
 
 1) a star
 
  Part of Speech: noun masculine
Relation: probably from the base of G4766
  Citing in TDNT: 1:503, 86
 
Usage:
This word is used 24 times:
Matthew 2:2: "for we have seen his  star in the east, and"
Matthew 2:7: "inquired of them diligently what time the  star appeared."
Matthew 2:9: "and, lo, the  star, which they saw in the"
Matthew 2:10: "When they saw the  star, they rejoiced with exceeding great joy."
Matthew 24:29: "light, and the  stars shall fall from heaven, and"
Mark 13:25: "And the  stars of heaven shall fall, and the"
1 Corinthians 15:41: "and another glory  of the stars: for one star differeth from another star"
1 Corinthians 15:41: "glory of the stars: for  one star differeth from another star in glory."
1 Corinthians 15:41: "for one star differeth from  another star in glory."
Jude 1:13: "their own shame; wandering  stars, to whom is reserved the blackness"
Revelation 1:16: "right hand seven  stars: and out of his mouth"
Revelation 1:20: "mystery of the seven  stars which thou sawest in my"
Revelation 1:20: "candlesticks. The seven  stars are the angels of the seven"
Revelation 2:1: "he that holdeth the seven  stars in his right hand who walketh"
Revelation 2:28: "him the morning  star."
Revelation 3:1: "and the seven  stars; I know thy works, that"
Revelation 6:13: "And the  stars of heaven fell unto the earth,"
Revelation 8:10: "and there fell a great  star from heaven, burning as it were"
Revelation 8:11: "the name of the  star is called Wormwood: and the"
Revelation 8:12: "the third part of the  stars; so as the third part of them"
Revelation 9:1: "sounded, and I saw  a star fall from heaven unto"
Revelation 12:1: "head a crown of twelve  stars:"
Revelation 12:4: "the third part of the  stars of heaven, and did cast them"
Revelation 22:16: "bright and morning  star."