Heart Nebula H(HO)O (Lee)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1795 · IC 1805 · NGC 896

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Heart Nebula H(HO)O

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Heart Nebula H(HO)O

This is using a RedCat 51, Atik 460EX, filter drawer and standard Baader Ha and OII filters. Image scale is ~3.8"PP. A good fit on the smaller chip in one frame, but some detail is sacrificed at 250/51.

Captured with Voyager, calibrated and stacked in APP then processed in PixInsight.

Ha - 48 x 900s (12hr)

OIII - 52 x 900s (13hr)

The Ha data was amazing and the first time I've ran an autostretch in PI and seen negligible noise in any area of the image. The majority of processing time was spent trying to reduce halos in the OIII stack before combining (there were 8-10 that would have created big blue circles if left alone) and balancing the background (which may or may not be a success).

Original
Final
E
F
G

E

Description: Reprocessed to remove some ringing on stars that I'd missed and to lighten things up a bit

Uploaded: ...

F

Description: Reprocessed original data - starless version.

Uploaded: ...

G

Description: Reprocessed original data - straight HOO

Uploaded: ...

William Optics CAT Series

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	Image of the day	Top pick	Top pick nominations	Total submitted
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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 success
Started	...
Astrometry.net job	4036000
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Heart Nebula H(HO)O

Heart Nebula H(HO)O

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Image Index:

Contribution Index (beta):

Heart Nebula H(HO)O

Heart Nebula H(HO)O

Equipment

Acquisition details

Description

Comments

Revisions

E

F

G

Sky plot

Histogram

In these public groups

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