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> Sgr A* Black Hole

Sgr A* Black Hole

author: EHT Collaboration/Novapix

reference: a-blh06-00005

Image Size 300 DPI: 34 * 34 cm

This is the first image of Sgr A*, the supermassive black hole at the centre of our galaxy. It’s the first direct visual evidence of the presence of this black hole. It was captured by the Event Horizon Telescope (EHT), an array which linked together eight existing radio observatories across the planet to form a single “Earth-sized†virtual telescope. Although we cannot see the event horizon itself, because it cannot emit light, glowing gas orbiting around the black hole reveals a telltale signature: a dark central region (called a shadow) surrounded by a bright ring-like structure. The new view captures light bent by the powerful gravity of the black hole, which is four million times more massive than our Sun. The image of the Sgr A* black hole is an average of the different images the EHT Collaboration has extracted from its 2017 observations.

Keywords for this photo:

2019 - 2022 - ASTRONOMY - BLACK HOLE - COSMOLOGY - EHT - GALACTIC CENTER - GRAVITY - MILKY WAY - SAGITTARIUS - SAGITTARIUS A - SUPERMASSIVE BLACK HOLE -