Observation by Kevin Gurney: M106 – highlighting jets and outfl...

Uploaded by

Kevin Gurney

Observer

Kevin Gurney

Observed

2025 May 30 - 21:54

Uploaded

2025 Sep 01 - 14:18

Objects

M106
NGC4248

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Constellation

Canes Venatici

Field centre

RA: 12^h18^m
Dec: +47°18'
Position angle: +2°25'

Field size

0°26' × 0°25'

Equipment

Celestron C11 with 0.7FR
Baader Filters LRGB, Ha
ZWO ASI2600 camera
Fornax 102 mount
Atik EFW
LodestarSX and OAG
Software: Starkeeper Voyager, PhD2, CdC, Pixinsight, XnView

Exposure

4.5 hours total exposure

Location

Charente, France

Target name

M106

Title

M106 – highlighting jets and outflows in H-alpha

About this image

Last time I imaged this, I only managed luminance data. This time I aimed to get colour as well and, to enhance further, some narrowband Ha. M106 (NGC 4258) is a Seyfert galaxy with an active nucleus ‘powered’ by a supermassive black hole. In the case of M106 this gives rise to jets of material emerging out of the galactic plane. They are very prominent in X-rays [1] but also have a strong component in H-alpha (see yellow arrow in image). The narrowband data are rendered here in a red/blue mix (pink/cyan). The scale of this galaxy is just too big for the C11-camera combination and so I used the focal reducer.

Taken over 3 nights: May31, June17,18 2025

Ogle, Patrick M., Lauranne Lanz, and Philip N. Appleton. 2014. ‘Jet-Shocked H2 and CO in the Anomalous Arms of Molecular Hydrogen Emission Galaxy NGC 4258’. The Astrophysical Journal 788 (2): L33.

Files associated with this observation

annotated.jpg (1.2 MB)

Like this image

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