Sigma Sagittarii

Sagittarius Constellation

Sigma Sagittarii

I chose the Sagittarius Constellation (The Centaur/Archer) as my first celestial body because it is my birth sign, as I was born in December. I am absolutely, annoyingly independent, thus, I identify with this star sign a lot.

This constellation was categorized by 2nd-century astronomer Ptolemy with 48 other constellations. It remains one of the 88 modern constellations. This constellation (nicknamed The Teapot for its shape) can be seen by the naked eye.

Source

This star, Sigma Sagittarii, is the second brightest star in the constellation Sagittarius. Its modern name is Nunki- is a Babylonian name recovered by archeologists. Its magnitude of +2.05 makes it visible to the naked eye.It is about 228 light-years from Earth. X-ray emission has been detected from this star. It burns bright blue/white.

Source

Star: Sigma Sagitarii (σ Sgr)

Chemical Components: About 75% hydrogen

24% Helium (this makes it blue)

Spectrum Analysis (of most abundant component: Hydrogen):

Source

Location: Right Ascension-  18h 55m 15.92650s

                 Declination- –26° 17′ 48.2068

Stellar Classification: B2.5 V

      Hydrogen Burning

Source

References: https://en.wikipedia.org/wiki/Sigma_Sagittarii

http://www.daviddarling.info/encyclopedia/N/Nunki.html