IC 2177 - Take 1 (ADBjester)

IC 2177 - Take 1

Located near Sirius, this large nebula has reflection and emission properties, and has a very low surface brightness making it difficult to photograph. This image boosts luminosity of the nebula by adding Hydrogen-alpha emission lines as luminosity, creating an HaRGB:

10 x 600 of Ha (1x1)

10 x 300 of Red Green and Blue (2x2)

I'm not 100% happy with the processing here, as the "bubble-gum pink" is too washed out and should be more red. Also, the stars in the foreground are too blue, due to a haloed effect as a result of upsizing the image. (This is why I prefer to shoot my color at 1x1).

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2013-05-29 Comments: As I look back on this one, I hated it so much that I almost didn't re-post it here as I moved over from Flickr. With the obvious stacking artifacts (this series had an amazingly difficult time registering), the blue halos and the washed out color, I almost left it out as not indicative of my continuing improvement. However, as it was my first attempt at pure Ha(RGB) without Luminance, I left it in and re-processed the same data set again tonight. I will post it again under today's date of processing, despite it being older data.

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	n/a
Started	n/a
Astrometry.net job	n/a
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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IC 2177 - Take 1

IC 2177 - Take 1

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