IC 1396 Nebulosa Trompa de Elefante (Astroneck)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: IC 1396

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IC 1396 Nebulosa Trompa de Elefante

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IC 1396 Nebulosa Trompa de Elefante

La Nebulosa de la Trompa de Elefante es una concentración de gas y polvo interestelar dentro de la región de gas ionizado IC 1396, mucho más grande, ubicada en la constelación de Cefeo, a unos 2.400 años luz de la Tierra. La nebulosa es el glóbulo denso y oscuro IC 1396A; comúnmente se le llama nebulosa de la Trompa de Elefante debido a su apariencia en longitudes de onda de luz visible, donde hay una mancha oscura con un borde brillante y sinuoso. El borde brillante es la superficie de la densa nube que está siendo iluminada e ionizada por una estrella masiva y muy brillante (HD 206267) que está justo al este de IC 1396A. Toda la región IC 1396 está ionizada por esta estrella masiva, a excepción de los glóbulos densos que pueden protegerse de los rayos ultravioleta de la estrella.

Ahora se cree que la Nebulosa Trompa de Elefante es un sitio de formación estelar, que contiene varias estrellas muy jóvenes (menos de 100.000 años) que fueron descubiertas en imágenes infrarrojas en 2003. Dos mayores (pero aún jóvenes, un par de millones de años, que viven miles de millones de años) estrellas están presentes en una pequeña cavidad circular en la cabeza del glóbulo. Los vientos de estas estrellas jóvenes pueden haber vaciado la cavidad.

La acción combinada de la luz de la estrella masiva que ioniza y comprime el borde de la nube, y el viento de las estrellas jóvenes que desplazan el gas desde el centro hacia afuera, conducen a una compresión muy alta en la Nebulosa Trompa de Elefante. Esta presión ha desencadenado la generación actual de protoestrellas.

(Wikipedia)

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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
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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
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Astrometry.net job	4741391
PixInsight job	n/a
PixInsight queue size	n/a
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IC 1396 Nebulosa Trompa de Elefante

IC 1396 Nebulosa Trompa de Elefante

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