(=մ) = ̷ ˺Ʈ νŸ 100 Ϲ 뼺 ̷ ϳ Ʈ ߴ.
̹ õڵ 츮 ߽ɿ ִ Ȧ ֺ ߷¿ '߷ ̵(gravitational redshift)' Ȯν Ϲ 뼺 ̷ Ǵٴ ߴ.
27 ܽŰ ü ' öũ ܰ (MPE)' ٱ õ ʰŴ(VLT) ̿ S2 츮 ߽ɿ ִ Ȧ 'üڸ(Sagittarius) A*' ߷¿ ̵ ó Ȯߴٰ ''õа õü(Astronomy & Astrophysics)' ֽȣ .
߷ ̵ Ȧ ߷忡 鼭 Ѵ.
üڸ A* ¾ 400 迡 ϴ Ȧ Ϲ 뼺 ̷ ߷ ִ "Ϻ "ٰ̾ .
S2 üڸ A* ֺ ִ 16⸶ üڸ A* Ѵ. ̹ 5 19 ¾ Ÿ 120迡 ϴ 2.7% ϴ ʼ 8õ .
S2 ̵ ð뺰 ϸ üڸ A* ʰ ߷¿ ̵ Ȯߴ.
S2 ӵ ġ ϰ Ϲ 뼺 ̷ "Ϻϰ ġߴ"鼭 " ߷ ظ ̴ ȹ " .
õ "νŸ Ϲ 뼺 ̷п 100 ̻ 帥 װ ͺ ξ ش ٽ ѹ Ǵٴ ƴ" ߴ.