NGC 6633

Introduction | Map | My Own Photos | My Own Observations | References

On this page I collect my observations of the open star cluster NGC 6633 in the constellation Ophiuchus.

Introduction

The open star cluster NGC 6633 in the constellation Ophiuchus can, according to Stoyan, already been seen with the naked eye. Stoyan even states that this cluster is comparable to M 11 and M 16.

NGC 6633
Size: 20' (Stoyan)
Distance: 1,000 light years (Stoyan)
Rating: *** (Stoyan)

Map

NGC 6633 in the constellation Ophiuchus (top left) (Image Courtesy of SkySafari Astronomy, www.simulationcurriculum.com)

My Own Photos

eVscope


NGC 6633 - May 31, 2020		NGC 6633 - May 31, 2020, processed

Vespera

NGC 6633, Aug 6, 2022 - original (17 frames = 170 seconds)

My Own Observations

Observations Summer to Autumn 2016

September 9, 2016 (Mühlhausen/Kraichgau: Heritage P130 on GoTo mount): Searched for NGC 6633, but did not find it because it was already too low.

Observations May 2020

May 31, 2020 (Erkerode: eVscope): NGC 6633 photographed in the new rectangular format without overlay, disturbed by trees, many hot pixels