Deep Sky ObjectsIntermediateSummer

M26 (NGC 6694) Observation Guide — Open Cluster in Scutum

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Overview

M26 is an open cluster in Scutum, catalogued as NGC 6694. At Magnitude 8, it lies about 5,000 light-years away. Summer is its best season, and the cluster suits intermediate observers.

Open clusters are loose groupings of young stars formed from the same molecular cloud. They trace the disk of the Milky Way and typically contain relatively young stars.

Basic Data

ItemData
Messier NumberM26
Catalog NumberNGC 6694
Object TypeOpen Cluster
ConstellationScutum
Apparent Magnitude8
Distance~5,000 light-years
Best SeasonSummer
DifficultyIntermediate
Required EquipmentSmall telescope

Physical Characteristics

M26 lies about 5,000 light-years away and shines at Magnitude 8, with dozens to hundreds of stars packed into its field.

Observation Guide

Finding It

M26 sits in Scutum. Summer evenings around 8–10 PM bring it to a useful elevation. Use Scutum's main stars as reference points, then pin down M26's precise location with a star chart or app.

Tips for Observing

Low magnification through binoculars or a small telescope shows the cluster at its best. Wide-field views preserve the visual context of the surrounding Milky Way star field. Star colors add interest.

A small telescope is recommended — an aperture of 80 mm or more under dark skies gives the best results.

Astrophotography Tips

Prime focus imaging through a tracking telescope is the right approach. Choose an exposure time that captures the cluster's star population against the Milky Way background.

Summary

M26 is an intermediate-level open cluster in Scutum, embedded in one of the richest parts of the summer Milky Way. A small telescope is required, but the surrounding star fields make the region particularly rewarding.

Specifications

Object Type散開星団
Messier Number26
Magnitude8
ConstellationSct
Best Seasonsummer
Difficultyintermediate