Observation by Ian Jarrett: Polarissima Cluster (Caldwell 1)

Uploaded by

Ian Jarrett

Observer

Ian Jarrett

Observed

2026 May 24 - 23:00

Uploaded

2026 May 25 - 14:28

Objects

NGC188

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Constellation

Cepheus

Field centre

RA: 00^h47^m
Dec: +85°15'
Position angle: +90°51'

Field size

0°16' × 0°16'

Equipment

Edge HD 9.25" SCT
Antlia LRGB V-Series PRO Filters
Player One Ares-M Camera
Celestron OAG + ASI120MM Guide Camera

Exposure

R (60x60s), G (80x60s), B (30x60s) + L (75x60s)

Location

Hampshire, Bortle 4

Target name

Polarissima Cluster (Caldwell 1)

Title

Polarissima Cluster (Caldwell 1)

About this image

Stars from the core of NGC188, taken at a focal length of 2350mm. I was using the cluster to calculate offset values for LRGB filters, so even though the sky was crystal clear and the seeing was great, the night was a work-in-progress.

Files associated with this observation

C1 NGC188.jpg (4.0 MB)

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