In 2013, astronomers announced they had discovered a magnetar exceptionally close to the supermassive black hole at the center of the Milky Way using a suite of space-borne telescopes including NASA's Chandra X-ray Observatory.
Fast Facts for SGR 1745-2900:
Coordinates (J2000): RA 17h 45m 40s | Dec -29° 00' 28.00"
References: Coti Zelati, F. et al, 2015, MNRAS 449, 2685; arXiv:1503.01307
Color Code: Energy: Red (2-3.3 keV), Green (3.3-4.7 keV), Blue (4.7-8 keV)
Distance Estimate: About 26,000 light years