NGC4151 and NGC4145 - Eye of Sauron and companion (Robert Shepherd)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: HD105663 · HD105824 · HD105881 · NGC 4145 · NGC 4151 · NGC 4156

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NGC4151 and NGC4145 - Eye of Sauron and companion

Revision title: NGC4151 and NGC4145 - Eye of Sauron and companion

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NGC4151 and NGC4145 - Eye of Sauron and companion

Revision title: NGC4151 and NGC4145 - Eye of Sauron and companion

This project was a big surprise to me. These "small" galaxies show a great contrast:
The intermediate spiral Seyfert galaxy NGC 4151 shows faint "arms" and a surprisingly bright core, which even causes diffraction spikes.
NGC 4145 shows a less bright core with Ha regions distributed along the spiral arms.

The total exposure of nearly 50 hours helped to reveal the faint structures in the main galaxies and also the small background galaxies.
I chose to crop the final version for an ideal framing of the two main galaxies. Please check out the uncropped version for further super small, intriguing background features.

Robert

Original
B
Final
C

B

Title: NGC4151 and NGC4145 - Eye of Sauron and companion - crop

Uploaded: ...

C

Title: NGC4151 and NGC4145 - Eye of Sauron and companion

Description: Added some noise reduction

Uploaded: ...

Imaged with N.I.N.A.
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Status	Advanced success
Started	...
Astrometry.net job	7408175
PixInsight job	0KIQP3U3JFP4DZ1NS2PMSSD90N7AZDN0
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h10m28s.149
RA (top/left)	12h08m32s.316
RA (top/right)	12h09m29s.729
RA (bottom/right)	12h12m21s.646
RA (bottom/left)	12h11m26s.982

Dec (center)	+39°35′28″.87
Dec (top/left)	+40°01′47″.55
Dec (top/right)	+39°03′00″.51
Dec (bottom/right)	+39°09′11″.94
Dec (bottom/left)	+40°07′57″.36

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NGC4151 and NGC4145 - Eye of Sauron and companion

Revision title: NGC4151 and NGC4145 - Eye of Sauron and companion

NGC4151 and NGC4145 - Eye of Sauron and companion

Revision title: NGC4151 and NGC4145 - Eye of Sauron and companion

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NGC4151 and NGC4145 - Eye of Sauron and companion

Revision title: NGC4151 and NGC4145 - Eye of Sauron and companion

NGC4151 and NGC4145 - Eye of Sauron and companion

Revision title: NGC4151 and NGC4145 - Eye of Sauron and companion

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