Observation by Mike Greenhill-Hooper: Cave Nebula in Ha-RGB

Uploaded by

Mike Greenhill-Hooper

Observer

Mike Greenhill-Hooper

Observed

2026 Aug 12 - 22:00

Uploaded

2026 Aug 21 - 15:06

Objects

The Cave Nebula (Sharpless 155)

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Constellation

Cepheus

Field centre

RA: 22^h58^m
Dec: +62°35'
Position angle: +105°09'

Field size

2°11' × 1°27'

Equipment

90mm f/6 TS triplet with 0.8FR on NEQ6 mount
ASI294MMPro with HaRGB filters

Exposure

12x300s for each filter; camera gain 121, offset 10, T=-10C

Location

Miradoux, S.W. France

Target name

Sh 2-155, Caldwell 9, Cave Nebula

Title

Cave Nebula in Ha-RGB

About this image

Images captured and mount controlled with APT. Images treated with Affinity Photo and GraXpert.

Files associated with this observation

Cave Nebula Combined P6.jpg (1.6 MB)

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Simon Paul Davis

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