Observation by Jeff Whiteway: Sh2-91

Uploaded by

Jeff Whiteway

Observer

Jeff Whiteway

Observed

2022 Aug 10 - 23:00

Uploaded

2022 Aug 11 - 13:33

Objects

Sharpless 91

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Constellation

Cygnus

Field centre

RA: 19^h35^m
Dec: +29°43'
Position angle: +156°20'

Field size

2°11' × 0°59'

Equipment

StellaMira 80mm refractor
ZWO ASI294MC
Optolong dual band filter

Exposure

16x300s

Location

Home

Target name

Sh2-91

Title

Sh2-91

About this image

Tough target for 80mm refractor, but 500mm focal length gives 2.2 degree FOV, not quite enough to get whole nebula in image. Difficult to separate nebula from stars and background noise, not enough time to try longer exposure. Even so Ha and OIII give distinctly separate images. Bigger aperture (but smaller FOV) might work better.

Files associated with this observation

Sh2-91_2.png (263.0 kB)

Like this image

Alan Thomas, Tim Haymes, Simon Paul Davis, Nick Hewitt, Callum Potter, Brad Thomas

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