Observation by Dr Ollie Garrett: NGC 2239 The Rosette Nebula

Uploaded by

Dr Ollie Garrett

Observer

Dr Ollie Garrett

Observed

2017 Jan 19 - 20:35

Uploaded

2017 Feb 17 - 01:02

Objects

NGC2239
NGC2237
NGC2246

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Constellation

Monoceros

Field centre

RA: 06^h31^m
Dec: +04°55'
Position angle: +86°57'

Field size

1°16' × 0°57'

Equipment

115mm f7 APO refractor
NEQ6 mount
SBIG STF-8300M CCD
SX Lodestar and SX Off Axis Guider
Baader 36mm unmounted filters in SX USB filter wheel

Exposure

Sulphur II: 2 x 1200 secs, Hydrogen Alpha: 2 x 1200 secs, Oxygen III: 2 x 1200 secs

Location

Dartmoor, UK

Target name

NGC2239

Title

NGC 2239 The Rosette Nebula

About this image

Subframes were captured between 20:35 and 23:05

Ambient temperature: 1 degree C

Camera sensor temperature: -20 degrees C

Seeing (Pickering Scale): 7 (Good)

Transparency (AAAA scale): 6 (Very Clear)

SQM reading: 20.36

Data acquisition and processing software: Nebulosity, PHD2, Photoshop and Pixinsight.

A work in progress, and the product of data collected on a single night, this observation ideally requires a good deal more exposure in its component channels to achieve the best possible signal to noise ratio. Even so, I believe the final image does represent a considered effort throughout processing to handle the collected data sensitively.

Files associated with this observation

N2239v2_19Jan17_OGarrett.jpg (1.9 MB)

Like this image

David Basey, Jeremy Shears, Ron Johnson, Lyn Smith, Graham Winstanley, Thomas Killestein, Paul Anthony Brierley, Nick Hewitt, Dawson, Peter Mulligan, Mike Olason, Peter Carson, Callum Potter, Dr Ollie Garrett

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