Observation by Simon Paul Davis: A bat and a squid

Uploaded by

Simon Paul Davis

Observer

Simon Paul Davis

Observed

2022 Nov 21 - 19:00

Uploaded

2022 Dec 04 - 12:42

Objects

The Flying Bat Nebula (Sharpless 129)

Equipment

Sharpstar HNT15028 150mm Newtonian
ASI1600MM Pro
OAG with ASI2900MM
6nm Ha, 4nm optimised Oiii

Exposure

60 x 600 secs Oiii, 60 x 60 secs Ha

Location

Hampshire

Target name

SH2-129

Title

A bat and a squid

About this image

There is a story behind this image. I have been disappointed with how litle Oiii light I was getting with my previous 6nm filter. In researching 3/4nm filters I discovered that for fast scope (<F4) you need specially optimised (pre-shifted by ~1nm) filters. So I acquired a Baader 4nm filter for F3 scopes. In order to test this out I went in search of a faint target. This being the infamous giant Squid nebula (OU4) only discovered by an amateur astronomer in 2011.

It turns out you need as much Oiii data as possible (10 hours with 60 second subs in my case). I deliberatelly took less data (1 hour with 60 second subs) with Halpha in order to emphasise the squid over the bat!

Files associated with this observation

BatSquid_final_small.jpg (1.6 MB)

Like this image

David Strange, Callum Potter, Callum Wingrove, David Basey, Peter Tickner, Manolo_Rodriguez, Geof Lewis, Miguel Araújo, Graeme Coates, Honor Wheeler, Nicholas Freeman

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