IC 2220 (Alberto Tomatis)

Celestial hemisphere: Southern · Constellation: Carina (Car)

IC 2220

IC 2220 costellazione della Carena

Situata a circa 1200 anni-luce dalla Terra nella costellazione australe della Carena, la nebulosa conosciuta come IC 2220, è un esempio di una nebulosa a riflessione. È una nube di gas e polvere illuminata dall’interno da una stella chiamata HD 65750.

Questa gigante rossa ha cinque volte la massa del Sole, ma si trova in una fase molto più avanzata della sua vita, malgrado la sua relativamente giovane età di 50 milioni di anni.

La nebulosa è stata creata dalla stella che perde una parte della sua massa nello spazio circostante, formando una nube di gas e polvere mentre questo materiale si raffredda.

La polvere consiste di elementi come il carbonio e di elementi semplici resistenti al calore come il diossido di titanio e l’ossido di calcio.

In questo caso studi dettagliati dell’oggetto nella luce infrarossa puntano verso il diossido di silicio (silicea) come il componente più verosimile per riflettere la luce stellare.

IC2220 è visibile poiché la luce stellare è riflessa da granuli di polvere.

Questa struttura celeste a forma di farfalla è quasi simmetrica e occupa circa un anno-luce.

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	426027
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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IC 2220

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Image Index:

Contribution Index (beta):

IC 2220

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Acquisition details

Description

Comments

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