Thought to add this though since it was in the subject line...
https://i0.wp.com/whenthecurveslineup.com/wp-content/uploads/2023/06/sco_230717-t.png?w=728&ssl=1
Chart Caption – 2023, July 17: Scorpius is in the southern sky as twilight ends.
As twilight ends at this season, the Scorpion crawls across the southern horizon. The brightest star, Antares, meaning “the rival of Mars,” is over 20° above the south-southwest horizon. It is one of the largest known stars in our region of the Milky Way galaxy. Given its reddish hue and its incredible intrinsic brightness, the star is about 250 times the sun’s diameter.
From Antares, the body of Scorpius can be traced downward toward the horizon and then curves back up ending at Shaula – meaning “the cocked-up part of the tail” – and Lesath – “the sting.” The stars appear close together and are sometimes named “the Cat’s Eyes.”
Moving westward from Antares, the forehead is marked by Dschubba. The claws, today part of Libra, reach westward. The stars retain their historic names Zubeneschamali – the northern claw – and Zubenelgenubi – the southern claw.
Explore this region of the sky with a binocular. The direction of the galaxy’s center is to the upper left of Shaula and Lesath behind Sagittarius, the next constellation eastward. Star clusters, star clouds, lanes of dust, and gaseous nebula are visible in this area.
Photo Caption -Photo Caption – Globular clusters are inherently beautiful objects, but the subject of this NASA/ESA Hubble Space Telescope image, Messier 3, is commonly acknowledged to be one of the most beautiful of them all. (NASA/ESA Photo)
Messier 4 (M 4 on the chart) is easily located in the same binocular field with Antares. It is a globular cluster appearing as a tiny cotton ball-like stellar bundle. It has thousands of stars. These clusters revolve around the galaxy outside the plane and a map helped astronomers predict the direction of the galactic center. Other star clusters, like the Pleiades, Hyades, and Beehive mark the plane of the galaxy and revolve around the center along that plane.
Check out this region of the sky before the moon grows too bright and moves through this region.
Saturn rises about two hours after sunset and it is about 10° above the horizon an hour later.
|
|