Hello fellow night sky watchers!
Well y'all I had to stay up extra late this evening (about two hours after midnight) to capture several really good shots of the brightest stars of the Constellations Auriga The Charioteer and Taurus The Bull rising in the east with the beautiful Last Quarter Moon.
In the first photo, using the moon as a guide, you can see the constellation's brightest stars Capella and Aldebaran, along with the bright star, Elnath, which connects both constellations together in the sky dome.
Capella is the brightest star in the constellation Auriga -- the sixth-brightest star in the night sky -- and the third-brightest in the northern celestial hemisphere after Arcturus and Vega.
Capella is the Latin word for nanny goat, and this bright star is often called the Goat Star. The mythological charioteer character, Auriga, is often depicted in mythology holding a female goat and her kids, along with the reins of a chariot.
Relatively close to us at about 42.9 light-years from the Sun, Capella appears to the naked eye to be a single star. In fact that bright point of light is made up of four separate stars, two of which (Capella Aa and Capella Ab) are a binary pair of large type-G yellow giant stars estimated to be anywhere from 10 to 12 times the size of the Sun. The other pair, Capella H and Capella L, are smaller red dwarf stars.
Aldebaran, the Eye of the Bull, is the brightest star in the Constellation Taurus The Bull and generally the fourteenth-brightest star in the night sky. The red giant is 65 light-years from the Sun and measures about 44 times the size of the Sun.
The traditional name Aldebaran derives from the Arabic term al Dabaran meaning "the follower" because it seems to follow the Seven Sisters (Pleiades) in the night sky.
Connecting both constellations is the bright star Elnath (or Beta Tauri). The second-brightest star in the Constellation Taurus the Bull, the B7 giant star is approximately 134 light-years away from the Sun. Elnath is estimated to be about 4.5 times the size of our Sun. The name Elnath comes from the Arabic word meaning "the butting" (or the Bull's horns).
In my second photo, I outlined the constellations as they are depicted. You can also see the Pleiades Star Cluster just above Taurus, which appear as a little dipper of five small, bright stars (two of them were not visible in the shot). You can also see the bright star, Rigel, just above the treetops on the bottom right.
Rigel (Beta Orionis) is a blue supergiant star and the second brightest star of Constellation Orion The Hunter, approximately 860 light-years from Earth. Like Capella, Rigel is a star system made up of at least four stars that appear as a single blue-white point of light to the naked eye.
Together, these bright points of light make up part of the Winter Hexagon (or Winter Circle) asterism that also includes the stars Pollux, Procyon, and Sirius. Capella is the northern most of these stars in the Winter Circle -- highlighted in blue here in my third and final photo of the evening.
Well folks, this concludes my presentation for the evening, my first one of the 2021 autumn season. Hopefully I will be able to bring you more soon, clear skies permitting. Until then, have a wonderful evening and be sure to keep your eyes to the night skies, y'all!
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