sh2-190 The Heart Nebula in SOO RGB (photonjunkie)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1805 · Sh2-190

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sh2-190 The Heart Nebula in SOO RGB

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sh2-190 The Heart Nebula in SOO RGB

The Heart Nebula, IC 1805, Sharpless 2-190, lies some 7500 light-years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia.

This stunning hydrogen emission nebula has an apparent angular size of roughly double the full moon (1 degree on the sky).

The open star cluster in the center of the image consists of many bright stars which excite the 165 light-years large gas cloud around it.

This image was taken from a red zone (Bortle 7) in the center of Zurich over the course of 3 successive nights in August 2020 during nearly a full moon. It shows how well you can still manage light-pollution by using a monochrome low-noise and cooled CMOS camera in conjunction with narrow-band filters.

I will be a father again in September of our second daughter Yuna (Moon in some Japanese dialect). Staying more at home in reach of my family, I will be imaging more often from my balcony and will try to push the limits on what’s possible in urban astrophotography.

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	Advanced success
Started	...
Astrometry.net job	4917013
PixInsight job	R93XPFR1UNZ9NB48P65OWWINHI1OTDMA
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	02h33m27s.34
RA (top/left)	02h30m49s.96
RA (top/right)	02h26m55s.99
RA (bottom/right)	02h35m55s.78
RA (bottom/left)	02h40m12s.84

Dec (center)	+61°24′51″.3
Dec (top/left)	+62°19′47″.1
Dec (top/right)	+60°51′18″.8
Dec (bottom/right)	+60°29′46″.10
Dec (bottom/left)	+61°57′11″.4

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sh2-190 The Heart Nebula in SOO RGB

sh2-190 The Heart Nebula in SOO RGB

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Image Index:

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sh2-190 The Heart Nebula in SOO RGB

sh2-190 The Heart Nebula in SOO RGB

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