Observation by Alan Thomas: IC 4997 Planetary Nebula in Sagitta

Uploaded by

Alan Thomas

Observer

Alan Thomas

Observed

2023 Nov 29 - 18:29

Uploaded

2023 Dec 09 - 12:46

Objects

IC4997

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Constellation

Sagitta

Field centre

RA: 20^h20^m
Dec: +16°44'
Position angle: +26°32'

Field size

0°24' × 0°18'

Equipment

Unistellar eQuinox 112mm reflector

Exposure

25min.

Location

Norbreck Observatory, Warrington, Cheshire, UK.

Target name

IC 4997 Planetary Nebula in Sagitta

Title

IC 4997 Planetary Nebula in Sagitta

About this image

IC4997 (the upper of the two bright objects centred in the image) is an insignificant-looking planetary nebula, visually indistinguishable from a star. Yet it turns out to be a surprisingly interesting object with odd characteristics, particularly its variability. It was discovered both by the remarkable Williamina Fleming and by Gustav Gruss in 1896.

Apparent mag. 11.15. Distance c.14,090ly. Apparent size 2.7" x 1.4".

Bortle 7/8.

Files associated with this observation

eVscope-20231129-182854 (2).jpg (282.2 kB)

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Callum Potter

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