NGC 752 is an old open cluster in Andromeda, a loose scattering of stars near Almach that has outlived most clusters of its kind.
At a glance
| type | open star cluster |
|---|---|
| distance from the Sun | 1,410 light-years (434 pc) |
| its light left it | 1,410 years ago |
| size in the piece | about 20 light-years acrossmodel |
Read off the piece’s own catalogue, the same values it draws with. Model marks a property of the piece’s galaxy model rather than a measurement.
About NGC 752
Most open clusters are pulled apart by the Galaxy within a modest stretch of time; NGC 752 has survived far longer than most, which makes it one of the older clusters near the Sun. Its brightest members include red giants, stars that have already left the main sequence.
Because all its stars share an age and distance, it is a reference for how Sun-like stars change as they age, from their spin to their composition. Binoculars show it as a loose group spread over a wide patch south of Almach.
What you see in the piece
Fly to it and its members hold together, some of them orange giants among the yellow and white dwarfs.
Questions
How far away is NGC 752?
NGC 752 is about 1,410 light-years (434 pc) from the Sun.
Where is NGC 752 in the sky?
In Andromeda, a short way south of the star Almach, best seen in binoculars.