Observation by Kenneth Medcalf: M13 Great Hercules Cluster

Uploaded by

Kenneth Medcalf

Observer

Kenneth Medcalf

Observed

2026 Apr 29 - 23:22

Uploaded

2026 Apr 30 - 10:16

Objects

The Great Globular Cluster in Hercules (M13)

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Constellation

Hercules

Field centre

RA: 16^h41^m
Dec: +36°27'
Position angle: -88°03'

Field size

0°27' × 0°20'

Equipment

iOptron RC8
Skywatcher Wave150i & 50ED Guide scope
ASI2600MC P25 & ASI120mini
ASIair Pro
Deep Sky Stacker & Affinity Photo

Exposure

275 (from 321) @ 120s Gain 100 9 hours 10 minutes total

Location

Eltham

Target name

M13

Title

M13 Great Hercules Cluster

About this image

Shot over several nights this week with decent clear skies despite moonlight. This target is visible over my roof from about 20:30 UTC and manages to negotiate chimney and trees.

Files associated with this observation

iO_M13 Hercules(275 from 321x120s@100)_DSS_BAA.jpg (8.8 MB)

Like this image

Kwong Man, Simon Paul Davis

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