Jump100of 100 · 27,000 light years from Earth
Sagittarius A*: the black hole at the centre of the galaxy
Sagittarius A* weighs about 4 million Suns and its first image came out in 2022. It is the end of Orbit's route. Facts with their sources.

Curious facts
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4 million Suns
It has about 4 million times the mass of the Sun and lies about 27,000 light years away, at the centre of our galaxy. 1
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Its first image, in 2022
On 12 May 2022 the Event Horizon Telescope, which links radio telescopes across the planet, released its first image: a dark shadow inside a ring of bright gas. 1
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Too far even for Voyager
Voyager 1, the spacecraft that has travelled farthest, cruises at about 61,000 km/h. At that speed, if it were heading that way, it would take almost 500 million years to get there. That is my own sum, from NASA’s figures. 2
Sagittarius A* in Orbit
In the game, Sagittarius A* is jump 100 of the route, 27,000 light years from Earth. Its logbook card says:
Logbook · Jump 100
4 million Suns; first imaged by the EHT in 2022
Two steps with the Google account you use on Play: join the group, then download the test. Google Play can take a while, sometimes more than an hour, before it lets you download it; if you see “Item not found”, wait and try again.
Sources
- ESO / EHT, 2022. eso.org/public/news/eso2208-eht-mw
- NASA, Voyager 1: What Is a Light-Day?. science.nasa.gov/mission/voyager/voyager-1/voyager-1-what-is-a-light-day
Checked between 8 and 11 October 2026.
Image: EHT Collaboration (CC BY 4.0), via NASA · original