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Sagittarius A*, abbreviated as Sgr A* (/ ˈ s æ dʒ ˈ eɪ s t ɑːr / SADGE-AY-star [3]), is the supermassive black hole [4] [5] [6] at the Galactic Center of the Milky Way.Viewed from Earth, it is located near the border of the constellations Sagittarius and Scorpius, about 5.6° south of the ecliptic, [7] visually close to the Butterfly Cluster (M6) and Lambda Scorpii.
In some applications use is made of rectangular coordinates based on galactic longitude and latitude and distance. In some work regarding the distant past or future the galactic coordinate system is taken as rotating so that the x -axis always goes to the centre of the galaxy.
The Red Spider Nebula (NGC 6537) is a planetary nebula located at a distance of about 4000 light-years from Earth. NGC 6559 is a star-forming region located at a distance of about 5000 light-years from Earth, in the constellation of Sagittarius, showing both emission (red) and reflection (blue) regions.
At the time, it was considered to be the closest known black hole to Earth, at a distance of approximately 1,600 light-years (490 pc). Later observations showed it to be much farther away, reported in 2001 to be between 7.4 and 12.31 kpc, [7] 6.2 kpc in 2014, [4] and around 6.6 kpc according to its Gaia Data Release 2 parallax. [2]
Sgr A East is a supernova remnant (SNR) located 7 light-years from Sgr A* and spanning approximately 27 light-years in diameter, originating from an explosion between 1,000 and 10,000 years ago. [7] Though its status as a SNR was initially debated [ 7 ] , the observed abundance of heavier elements, such as a higher ratio of Mn/Fe and Ni/Fe ...
In 2024, Sagittarius season officially began on Nov. 21 and will run through Dec. 21. Mesa explains that the sun will enter the Fire sign "at 2:56 p.m. EST, where it will remain until Dec. 21 at 4 ...
Money-wise, Sagittarius gets some very good news this year as Pluto—planet of life and death—moves out of their financial zone for the first time since 2008!
One galactic year is approximately 225 million Earth years. [2] The Solar System is traveling at an average speed of 230 km/s (828,000 km/h) or 143 mi/s (514,000 mph) within its trajectory around the Galactic Center, [ 3 ] a speed at which an object could circumnavigate the Earth's equator in 2 minutes and 54 seconds; that speed corresponds to ...