Carina in HaOiiiRGB (Franco Rodriguez)

Carina in HaOiiiRGB

Taken from the Eric Fogerty Memorial Observatory in by backyard at Queensland, Australia. This took me about 2 months to get enough data. This is my first 2x2 pano.

acquisition gear:

100mm SW esprit f5.5

ASA DDM85 mount, guided with ZWO 290MC

Starlight Xpress SX814 trius

Astrodon 3nm H and 5nm O; RGB

2x2 pano:

Each frame: Ha=O=30 x 900s shots, R,G,B 30 x 300s; darks, bias, flats.

Pixinsight: WBPP for all, then,

For colour data: dynamic crop, channel combination, DBE, background neut, colour calibration, multiscale linear transform, masked stretch.

For Ha and Oiii: dynamic crop, DBE, multiscale linear transform, masked stretch. Pixelmath combination of RGB with 20% Ha in red, then made a colour image (with synthetic green at 50/50 Ha and O), then added as layers in PS. Narrowband lum layer on top at 15%. Mopped up some hot pixels that WBPP didn't sieve out, then put it through topaz denoise and sharpen AI. Final touches in Lightroom

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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