# Sagittarius A\* on SpaceSphere

> The supermassive black hole at the centre of our galaxy, found by tracking the orbits of stars swinging around an unseen mass.

Canonical: https://spacesphere.sygnito.com/en/universe/sagittarius-a-star

Black hole

The supermassive black hole at the centre of our galaxy, found by tracking the orbits of stars swinging around an unseen mass.

## Nothing to see here, and that is the fact

Our note on this object, in English:

> A black hole gives off no light of its own. This is a direction on the sky rather than a sight: the object is catalogued as an X-ray source, not an optical one, so there is nothing here to see through any telescope.

Source: SIMBAD otype\_txt 'X' (X-ray source) for NAME Sgr A\*, read 2026-08-02

## Facts

- **Position**: 266.41682, -29.00782 (Source: [2011AJ....142...35P](https://ui.adsabs.harvard.edu/abs/2011AJ....142...35P/abstract))
- **Constellation**: Sagittarius (Worked out by us)

## Catalogue designations

Sgr A\*

Source: SIMBAD main\_id, read 2026-08-02

## Can you see it tonight?

The page works this out in the visitor's browser, from their own location, and the answer is a prediction rather than an observation. It is not part of this file.

## Related

- [All objects](https://spacesphere.sygnito.com/en/universe)