IC1805 Heart of the Heart Nebula (Joe Niemeyer)

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

IC1805 Heart of the Heart Nebula, Joe Niemeyer

Powered byPixInsight

IC1805 Heart of the Heart Nebula

Powered byPixInsight

IC1805 Heart of the Heart Nebula

This is my image of the central portion of the Heart Nebula (IC 1805) featuring the Melotte 15 open star cluster surrounding huge pillars of dust and gas. The hot young stars in Melotte 15 have masses about 50 times that of our Sun. I really love the contrast and detail in this image. The entire Heart Nebula is too large to fit all of it in my telescope's field of view, but you can see the outlines of the heart shape on the periphery of this image. It occupies a field 4 times the diameter of a full moon and is 7500 light-years from Earth in Cassiopeia. IC 1805 has the distinctive red coloring of an emission nebula composed of ionized hydrogen radiated by the central open star cluster. And it is adjacent to the Soul Nebula which will be the subject of my next astro photo. These two nebulae together are referred to as the Heart and Soul Nebulae.

I made this image from the best of 34 300-second exposures through my Baader dual-bandpass filter (Hα and OIII) at 1630mm focal length (0.7X reducer), calibrated with 20 each dark, flat, and dark flat frames. I stacked the frames with Astro Pixel Processor and post-processed with Photoshop utilizing the StarXTerminator, Astronomy Tools, and Topaz DeNoise AI plugins.

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 success
Started	...
Astrometry.net job	5392849
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

IC1805 Heart of the Heart Nebula

IC1805 Heart of the Heart Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

IC1805 Heart of the Heart Nebula

IC1805 Heart of the Heart Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information