Observation by Simon Paul Davis: Eastern Veil Narrowband

Uploaded by

Simon Paul Davis

Observer

Simon Paul Davis

Observed

2023 Aug 29 - 21:32

Uploaded

2023 Sep 19 - 15:37

Objects

NGC6992
NGC6995

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Constellation

Cygnus

Field centre

RA: 20^h55^m
Dec: +31°35'
Position angle: -88°52'

Field size

1°52' × 1°14'

Equipment

Sharpstar HNT15028 150mm Newtonian
ASI1600MM Pro
OAG with ASI2900MM
Ha, Sii and Oiii filters

Exposure

50 x 120 Seconds each for Ha, Sii and Oiii

Location

Hampshire

Target name

NGC6992

Title

Eastern Veil Narrowband

About this image

5.5 hours total observation time. This narrowband image uses the SHO pallette to show some more detail in the nebulosity

Files associated with this observation

eveil_final.jpg (1.4 MB)

Like this image

Callum Potter, Callum Wingrove

Comments

Tim Haymes, 2023 Oct 01 - 16:41 UTC

Hi Simon,
Regarding the narrow band filter used at F2.8. Are these the "band-shifted" variety?
I was informed recently that narrow band filters only work down to F/3. Im skeptical of that claim and F/2.8 should work? Do you know?

Cheers - Tim

Simon Paul Davis, 2023 Oct 02 - 07:32 UTC

Hi Tim,

Great question. The Ha and Sii are 6nm and not band shifted and seem to work pretty well. But I was frustrated with how little Oiii signal I got with my 6nm filter so switched to a band shifted one with significant improvement. Its not as obvious as "only work down to F3" but there is a difference

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