Observation by Paul Whitmarsh: LoTr 5

Uploaded by

Paul Whitmarsh

Observer

Paul Whitmarsh

Observed

2025 Apr 16 - 21:02

Uploaded

2025 Apr 29 - 16:37

Objects

PK339+88.1

Equipment

Seestar S50
Built-in Dual Band filters OIII 30nm/Hα 20nm

Exposure

30 second integrations 15h15m 50s

Location

Mileaway Observatory Uckfield

Target name

LoTr 5 / PK339+88.1

Title

LoTr 5

About this image

LoTr 5, AKA PK339+88.1, is the highest galactic latitude planetary nebula know.

On an image with 6 hours integration it was only barely visible above the S50 camera noise. It was going to need a lot more data, with only a few days left of the challenge the skies cleared and I set the Seestar off to capture more photons.

With just over 15 hours of data the PN finally showed itself. A real hard target as set by Callum, as this months Deep Sky challenge.

I took the image over six nights using the built in dual band Ha OIII filter.

The image was processed in pixinsight, I used the Pixinsight Automatic Background subtraction routine rather than Graxpert to address the gradient in the image as Graxpert removed a lot of the nebula too.

Files associated with this observation

lotr_5_2011x30sec_15h15m50sT11C_2025-04-16_21_02_Dualband_Ha_OIII.png (2.1 MB)

Like this image

Grant Privett, Callum Potter, Andy Wilson, Simon Paul Davis, Dominic Ford, Graham Winstanley, Iain Cartwright, Manolo_Rodriguez

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.

Registered charity no. 210769
Registered company no. 117572

For more information including contact details, click here.

Our Terms of Use are here.

Our Privacy Policy is here.