Observation by Brad Thomas: SH2-174 - Planetary Nebula?

Uploaded by

Brad Thomas

Observer

Brad Thomas

Observed

2021 Apr 22 - 00:00

Uploaded

2021 Apr 24 - 01:04

Objects

Sharpless 174

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Constellation

Cepheus

Field centre

RA: 23^h48^m
Dec: +80°59'
Position angle: -0°03'

Field size

1°58' × 1°19'

Equipment

Skywatcher 72ed APO with 0.85 Reducer / Flattener

Exposure

3 hours total integration - 240secs x 120gain x 40offset

Location

Surbiton UK

Target name

SH2-174

Title

SH2-174 - Planetary Nebula?

About this image

SH2-174 - is it a planetary nebula or not - seems there is some disagreement as it doesn't conform to the standard model?

it's a large but very faint nebulous region and the northern most Sharpless object located near to Polaris.

A challenging target with a 50% moon to boot

I managed to iron out my guiding issues and had my best guiding session to date - Seems that the IOptron Smart EQ Pro+ mount works best when the guide rate is set close to 1 x sidereal (0.9 in my case) - first time my total error was below .2 - so was a bonus on this occasion.

This nebula is very faint but it's there - shooting North is a nightmare as I've got ALL of London's light to contend with

Files associated with this observation

SH2-174-Nebula_240secs_120gain_40offset_45exp_L-Enhance-Luminance-New-Version1-xsmall.jpg (1.8 MB)

Like this image

Tim Haymes

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