Heart Nebula in SOO vs RGB (David McClain)

Heart Nebula in SOO vs RGB

Raw SHO frames courtesy of Deep Sky West Remote Observatory in New Mexico, USA. (deepskywest.com) Data obtained with FSQ 106EDXiii / QSI683wsg / Lodestar / Paramount MyT.

21 hrs total integration (16x900s R, 16x900s G, 16x900s B, and 18x1800s H-alpha). The palette is RGB with H-alpha serving as Luminance.

Processing in PixInsight.

The frame on the left is SOO, and the frame on the right is RGB. Both frames were acquired with very similar plate scales (2 arcsec/pix on the left, 1.8 arcsec/pix on the right). The two images have been geometrically scaled and registered to a common plate system.

It is interesting to compare them. While seemingly much more detailed features show up in the SOO image, the faint star cluster in the lower right corner barely shows up in the SOO image.

Also interesting how much I can capture in 15 minutes from my back yard, compared to 20 hrs from the dark site in New Mexico. Of course, I have aperture and band width advantages.

Note: I had to seriously deemphasize the star images in the RGB plate. Had I not done so, you would barely see the nebula for all the field stars in front.

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	1080979
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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