Constellations #11
Image source [1]: Sagittarius region of the Milky Way.
Hello friends, continuing our journey through the constellations today we marvel at the constellations of Sagittarius, Scorpius and Serpens.
Sagittarius is one of the constellations of the zodiac. It is one of the 48 constellations listed by the 2nd-century astronomer Ptolemy and remains one of the 88 modern constellations. The constellation as a whole is often depicted as having the rough appearance of a stick-figure archer drawing its bow, with the fainter stars providing the outline of the horse's body. Sagittarius famously points its arrow at the heart of Scorpius, represented by the reddish star Antares, as the two constellations race around the sky.
Image source [2]: The constellation Sagittarius. North is to the left. The line going to the right connects ζ to α and β Sagittarii. Above this line one sees Corona Australis.
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Scorpius is one of the constellations of the zodiac. Its name is Latin for scorpion. Scorpius is one of the 48 constellations identified by the Greek astronomer Ptolemy in the second century. It is an ancient constellation that pre-dated the Greeks. Scorpius contains many bright stars, including Antares, "rival of Mars," so named because of its distinct reddish hue; Sco (Graffias or Acrab), a triple star; Sco (Dschubba, "the forehead"); Sco (Sargas, of unknown origin); ν Sco (Jabbah); Sco (Girtab, "the scorpion"); Sco (Iclil); Sco (Alniyat); and Sco (also known as Alniyat, "the arteries").
Image source [3]: The constellation Scorpius as it can be seen by naked eye (with constellation lines drawn in).
Serpens is a constellation of the northern hemisphere. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations defined by the International Astronomical Union. It is unique among the modern constellations in being split into two non-contiguous parts, Serpens Caput (Serpent Head) to the west and Serpens Cauda (Serpent Tail) to the east. Marking the heart of the serpent is the constellation's brightest star, Alpha Serpentis. Traditionally called Unukalhai, is a network of spectral type K2III located approximately 23 parsecs distant with a visual magnitude of 2.630 ± 0.009, meaning it can easily be seen with the naked eye even in areas with substantial light pollution.
Image source [4]: The constellation Serpens (Caput) as it can be seen by the naked eye.
Image source [5]: The constellation Serpens (Cauda) as it can be seen by the naked eye.
Good one steemian
A very nice post and for me, an educative post.. I always wondered how people know these constellations like a map.
It looks interesting with all the names.. Hehe... Nice post
Thanks :D
Wow.. So beautiful and insightful.. Thanks for sharing..