Observation by Peter Goodhew FRAS: H 3-75

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Peter Goodhew FRAS

Observer

Peter Goodhew FRAS

Observed

2020 Nov 25 - 10:44

Uploaded

2020 Nov 27 - 10:46

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Constellation

Orion

Field centre

RA: 05^h40^m
Dec: +12°21'
Position angle: -3°42'

Field size

0°15' × 0°10'

Equipment

APM TMB 152 LZOS Refractors
10Micron GM2000 HPS mount
QSI6120wsg8 cameras

Exposure

37 hours HaOIIILRGB

Location

Fregenal de la Sierra, Spain

Target name

H 3-75

Title

H 3-75

About this image

H 3-75 (also known as Haro 3-75 and PNG 193.6-09.5) is a tiny planetary nebula in the constellation Orion. At 31 arc seconds this is without a doubt the tiniest target I have ever attempted, and a real challenge for 6-inch aperture scopes. This is the first amateur image to reveal the outer halo, which is significantly larger than 31 arc seconds.
The outer halo around this planetary nebula was initially discovered by the Galactic Planetary Nebula Halo Survey (GPNHS) team (a collaboration of some of the world's best astrophotographers led by Sakib Rasool) in January 2019.

More technical details are available on my website at: https://www.imagingdeepspace.com/h-3-75.html

Files associated with this observation

H3-75 crop.jpg (543.9 kB)

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Mike Harlow, Dean Ashton, Peter Carson

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