Deep-sky object
Ptolemy's Cluster
Ptolemy's Cluster is an open cluster somewhere between 650 and 1 310 light-years away, in Scorpius, about 6 light-years across, seen as it was 980 years ago.
See it live
It is on the live 3D map, where it really is.
Key facts
- Type
- Open cluster
- Constellation
- Scorpius
- Distance
- 650 to 1 310 light-years
- Size
- about 6.00 light-years across
- Brightness from Earth
- magnitude 3.3
- Catalogue
- M7, NGC 6475
See it from here
Bright enough to see with your own eyes from a dark place.
How the map draws it
Drawn as a soft glow in the manner of its kind at its measured distance, as wide as it measures; the pattern in it is illustrative and its true shape is not drawn — the kind of thing, not this exact one.