The tale of the owl on the surfboard: M97 and M108 (Owl Nebula and Surfboard Galaxy) (Mau_Bard)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 108 · M 97 · NGC 3556 · NGC 3587 · NGC 3594 · Owl Nebula · PGC 2484482 · PGC 2485269 · PGC 2486236 · PGC 2486887 · PGC 2487391 · PGC 2488942 · PGC 2489233 · PGC 2489976 · PGC 2490291 · PGC 2490640 · PGC 2490901 · PGC 2491013 · PGC 2491147 · PGC 2492212 · PGC 2492355 · PGC 2492506 · PGC 2492708 · PGC 2493264 · PGC 2493781 · PGC 2493916 · PGC 2494570 · PGC 2496000 · PGC 2496290 · PGC 2496392 · And 53 more.

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The tale of the owl on the surfboard: M97 and M108 (Owl Nebula and Surfboard Galaxy)

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The tale of the owl on the surfboard: M97 and M108 (Owl Nebula and Surfboard Galaxy)

Ursa Major is close to the galactic north pole, therefore offers a free sight to the deep sky.

It is housing a huge quantity of galaxies, like the many ones that are populating the sky behind M108 and M97.

For instance, galaxy PGC33914, in the bottom right quadrant, has a recognizable spiral shape, notwithstanding its remarkable distance of 760 million light-year (Mly).

NGC 3594, on top left quadrant, distant 283 Mly, was discovered 14 April 1789 by Wilhelm Herschel.

I find also lovely the two galaxies hiding close to the big central star, PGC34197 and PGC34177.

A technical notation: I forgot dithering (aaagh!), and I was ready to throw all the recording away.

To my surprise, the expected bias pattern has not shown up.

The high quality of these new sensors saved one night work!

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Optolong L-Pro filter
ZWO ASI 2600MC PRO
Imaged with N.I.N.A.
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Suburban Astrophotography
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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	4380195
PixInsight job	KYZ8MGJI2E5VAQ17XRNRWYXO90XPOZC6
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	11h13m02s.238
RA (top/left)	11h17m25s.153
RA (top/right)	11h08m37s.402
RA (bottom/right)	11h08m45s.658
RA (bottom/left)	11h17m21s.815

Dec (center)	+55°21′21″.37
Dec (top/left)	+55°47′55″.58
Dec (top/right)	+55°47′23″.49
Dec (bottom/right)	+54°54′13″.55
Dec (bottom/left)	+54°54′37″.91

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The tale of the owl on the surfboard: M97 and M108 (Owl Nebula and Surfboard Galaxy)

The tale of the owl on the surfboard: M97 and M108 (Owl Nebula and Surfboard Galaxy)

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The tale of the owl on the surfboard: M97 and M108 (Owl Nebula and Surfboard Galaxy)

The tale of the owl on the surfboard: M97 and M108 (Owl Nebula and Surfboard Galaxy)

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