Skip to content

Cluster · Ophiuchus

NGC 6633

A loosely concentrated open cluster in Ophiuchus, which the Swiss astronomer Jean Philippe Loys de Cheseaux spotted in 1745.

Le Cœur et l'Âme · Photograph by the author · 3h 47m of exposure, DwarfLab DWARF 3

NGC 6633, duration not logged
NGC 6633 duration not logged · Unistellar eQuinox 2

About 1,280 light-years away, it covers 20 arcminutes and shines at magnitude 4.6: it can be seen with the naked eye. In the photo, brighter blue stars are scattered at the centre and towards the bottom, among a multitude of fainter, orange stars.

Source: Wikipédia en français, NGC 6633. A figure wrong? Report it.

duration not logged 1 shot

0 towards 25h 12m · cumulative integration on this object

Temps d'intégration : the total exposure time, the sum of every exposure stacked on an object.

Designation
NGC 6633
Family
Cluster
Constellation
Ophiuchus
Shots taken
1
Album date
29 July 2026
Cumulative integration
not logged

The album date is the one the photo album gives the file, not the date of the shot: the device burns none into this image.

In the same family

Other clusters in the catalogue

M45, Les Pléiades

M45 · Taurus

Les Pléiades

5h 59m 3 shots

0 towards 25h 12m · cumulative integration on this object

M36

M36 · Auriga

M36

duration not logged 1 shot

0 towards 25h 12m · cumulative integration on this object

Back to the catalogue