The Owl & the Surfboard: M97 & M108 (Aaron Freimark)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 108 · M 97 · NGC 3556 · NGC 3587 · NGC 3594 · Owl Nebula · PK148+57.1

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The Owl & the Surfboard: M97 & M108

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The Owl & the Surfboard: M97 & M108

There are a couple of interesting objects in this image.

The green blob is M97, the Owl Nebula. It is a planetary nebula, formed when a star begins shedding its outer gases. Note: this isn't false color; the nebula actually appears green.

I've fallen in love with William Parson's original sketch of this nebula: http://www.messier.seds.org/more/m097_rosse.html

Towards the bottom of the image is M108, the Surfboard Galaxy. I just learned the name.

1. WeightedBatchProcessing (Calibrate only),

2. Crop one image as master

3. Image Registration all images to master

4. Subframe Selector for each filter

5. Local Normalization

6. Image Integration

7. Drizzle Integration

8. Dynamic Background Extraction on each filter

9. EZ Denoise

10. Statistics to see that B has highest median

11. LinearFit R & G to B

12. ChannelCombination RGB

13. RGB: Photometric Color Calibration

14. RGB: ArcsinhStretch

15. RGB: HistogramTransformation

16. L: ArcsinhStretch

17. L: HDRMultiscaleTransform

18. LRGB Combination

19. EZ Star Reduction

20. LRGB: Curves Transformation

21. LRGB: Topaz Denoise AI

Mid-Hudson Astronomical Association (MHAA)

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
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Other
Unknown

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	4362724
PixInsight job	ZYKUFVC6U8NT0GHYWX4HZEDKPMY1E59Z
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	11h13m04s.94
RA (top/left)	11h07m19s.57
RA (top/right)	11h17m12s.84
RA (bottom/right)	11h19m00s.98
RA (bottom/left)	11h08m46s.77

Dec (center)	+55°16′33″.0
Dec (top/left)	+54°39′28″.1
Dec (top/right)	+54°25′55″.7
Dec (bottom/right)	+55°52′33″.1
Dec (bottom/left)	+56°06′33″.4

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The Owl & the Surfboard: M97 & M108

The Owl & the Surfboard: M97 & M108

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Image Index:

Contribution Index (beta):

The Owl & the Surfboard: M97 & M108

The Owl & the Surfboard: M97 & M108

Equipment

Acquisition details

Description

Comments

Sky plot

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In these public groups

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