Sh2-190 Emission-Line Image (Alex Woronow)

Sh2-190 Emission-Line Image

Sh2-190 in True-Color SHO Extracted Emission Lines

OTA: Star-Fire 175 (f/8)
Camera: FLI - PL16070AE
Observatory: Deep Sky West. NM

EXPOSURES:
R: 12 x 600
B: 15 x 600
G: 13 x 600
H: 21 x 1800
S: 21 x 1800
O: 16 x 1800

Total exposure: 35.3 hours
Image Width: 1.4 deg
Processed by Alex Woronow (2022) using PixInsight, Topaz, and PI-Scripts of my making

The image colors are “true colors” mapped from the colors of the extracted emission lines. Star colors are photometrically calibrated and transferred from an RGB image. The image displays an SHO emission-line-only image with the continuum emissions removed. In addition to providing the stars, the RGB images allowed computing the emission-line-only fluxes. The main image is a starless version. If you must see the stars, they appear in image B.

This nebula lies about 7500 lyr away. It is strongly shaped and stimulated into emission by a small group of stars near the center of an expansive “bubble.” Only a portion of that bubble appears in this image. The star cluster driving the bubble lies toward the top-center of the image.

Alex W

Final
Original
B

B

Title: Image with stars replaced

Uploaded: ...

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
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	Basic failed
Started	...
Astrometry.net job	6134777
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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