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Messier 69 or M69, also known NGC 6637, and NGC 6634, [9] [10] is a globular cluster in the southern constellation of Sagittarius. [ a ] It can be found 2.5° to the northeast of the star Epsilon Sagittarii and is dimly visible in 50 mm aperture binoculars .
The Messier objects are a set of 110 astronomical objects catalogued by the French astronomer Charles Messier in his ... +69° 03′ 55″ M82 [99] NGC 3034 Cigar ...
The Little Dumbbell Nebula, also known as Messier 76, NGC 650/651, the Barbell Nebula, or the Cork Nebula, [1] is a planetary nebula in the northern constellation of Perseus. It was discovered by Pierre Méchain in 1780 and included in Charles Messier 's catalog of comet -like objects as number 76.
These seven messages have targeted stars between 20 and 69 light-years from the Earth. The exception is the Arecibo message, which targeted globular cluster M13, approximately 24,000 light-years away. The first message to reach its destination will be A Message From Earth, which should reach the Gliese 581 planetary system in Libra in 2029.
21 Sagittarii is a binary star [3] system in the southern zodiac constellation of Sagittarius.It is visible to the naked eye as a faint point of light with a combined apparent visual magnitude of 4.81. [2]
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The Bayer designation Xi Sagittarii (ξ Sagittarii) is shared by two stars, ξ 1 Sagittarii and ξ² Sagittarii, in the constellation Sagittarius, separated by 0.46° in the sky.
V4641 Sagittarii is a variable X-ray binary star system in the constellation Sagittarius.It is the source of one of the fastest superluminal jets in the Milky Way galaxy.. In 1999 a violent X-ray outburst revealed it to contain a black hole. [6]