[TEAM OMICRON] - Tribute to NGC 147 : Giant view of a dwarf galaxy (Jeffbax Velocicaptor)

[TEAM OMICRON] - Tribute to NGC 147 : Giant view of a dwarf galaxy

Revision title: Full frame with LUT slightly enhancing orange stars

Hello my friends,

I am very pleased to present to you the result of a mission carried out at the C2PU observatory in Calern last week.

During the 4 nights, the seeing was not very good. Just enough to complete in RGB an image of NGC 147 started in luminance by Serge Brunier in january 2022. He had some average to good seeing and the data made it possible to resolve the galaxy into stars. We haven't found many images of this galaxy with this level of details on the internet. Apart from that of Hubble of course, but not in full field.

NGC 147 (also known as Caldwell 17) is a dwarf spheroidal galaxy about 2.6 Mly away in the constellation Cassiopeia. It is a member of the Local group of galaxies and a satellite of the Andromeda Galaxy (M31).

It has here been imaged using the 1m Omicron deltagraph at f/3,2. 6,5h Luminance and RGB = 1,5h/45mn/1,5h.

The stellar magnitude reached is 24,8 ! I haven't counted the stars

, but it seems like there are millions of them !

As usual, the final version is a crop. Please have a look at the FULL 7K field here (revision B) :

This mission was great, like every time I go to Calern.

At the start of the mission we changed the T1000 to the deltagraph version by removing the Cassegrain secondary. After having the Darks and offset done, a final check of the position of the dark mask and the cable passages before opening fire :

There is a small globular cluster that has already been noticed by the HST. It is clearly detected here (Omicron image at 300 %) :

I hope you will enjoy this tribute to the dwarf NGC 147.

Clear skies.

JF

Credit : JF Bax - Serge Brunier - OCA / C2PU

Original
B
C
E
Final
F

B

Title: NGC 147 : 7K Full field

Uploaded: ...

C

Title: Velocicaptor on T1000 :-)

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E

Title: Globular custer in NGC 147 _ Comparison with HST

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F

Title: Full frame with LUT slightly enhancing orange stars

Uploaded: ...

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[TEAM OMICRON] - Tribute to NGC 147 : Giant view of a dwarf galaxy

Revision title: Full frame with LUT slightly enhancing orange stars

[TEAM OMICRON] - Tribute to NGC 147 : Giant view of a dwarf galaxy

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[TEAM OMICRON] - Tribute to NGC 147 : Giant view of a dwarf galaxy

Revision title: Full frame with LUT slightly enhancing orange stars

[TEAM OMICRON] - Tribute to NGC 147 : Giant view of a dwarf galaxy

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