Galaxia NGC-2403 (José María Moreno Santiago)

Celestial hemisphere: Northern · Constellation: Camelopardalis (Cam) · Contains: NGC 2403 · NGC 2404

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Galaxia NGC-2403

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Galaxia NGC-2403

NGC 2403 es una galaxia espiral intermedia que se encuentra a solo ocho millones de años luz de distancia en dirección a la constelación de Camelopardalis. Su extensión es de 75.000 años luz y su magnitud aparente 8,9. Se puede ver fácilmente con binoculares de 10 x 50 y fue descubierta por William Herschel en 1788.En NGC 2403 se pueden observar varias aglomeraciones debido al gran número de regiones H II de formación estelar en sus brazos espirales, seis de ellas muy grandes (hasta 2000 años luz de tamaño) y luminosas, con propiedades similares a las de 30 Doradus en la Gran Nube de Magallanes o NGC 604 en M33. Su brazo norte conecta con la nube estelar NGC 2404.

Forma parte del Grupo M81 y de la Nube de Galaxias Coma-Sculptor. De hecho, es una de las galaxias espirales más próximas a la Vía Láctea aparte de las del Grupo Local. Su morfología y características son similares a las de la Galaxia del Triángulo, y es también la primera galaxia fuera del Grupo Local en la que se descubrieron estrellas variables del tipo cefeida.

Sobre la base de estudios realizados de las fuentes de rayos X existentes en esta galaxia, se ha sugerido que ha podido haber experimentado recientemente un brote estelar. Esto se contradice, sin embargo, con otros estudios que muestran que la tasa de formación estelar de NGC 2403 es 100 veces menor que la de la M83 y 40 veces menor que la de la M51, así cómo por la presencia en ella de las grandes regiones de formación estelar mencionadas.Se han observado dos supernovas en la galaxia: SN 1854J y SN 2003dj.

(Fuente 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
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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
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Distribution of data sources

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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	Advanced success
Started	...
Astrometry.net job	7616647
PixInsight job	248PS520ZH4B5SX9ETMVAEKTMVM6S5H9
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h36m49s.510
RA (top/left)	07h40m51s.120
RA (top/right)	07h32m57s.130
RA (bottom/right)	07h32m53s.733
RA (bottom/left)	07h40m34s.910

Dec (center)	+65°34′56″.28
Dec (top/left)	+65°56′59″.70
Dec (top/right)	+65°58′07″.32
Dec (bottom/right)	+65°12′30″.17
Dec (bottom/left)	+65°11′24″.77

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Galaxia NGC-2403

Galaxia NGC-2403

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