Ngc 7635 (Luca Dinoi)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · M 52 · NGC 7538 · NGC 7635 · NGC 7654

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Ngc 7635

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Ngc 7635

NGC 7635 (nota talvolta come Nebulosa Bolla o C 11) è una nebulosa diffusa visibile nella costellazione di Cassiopea, verso il confine con Cefeo.
È individuabile vicinissimo all'ammasso aperto M52, al punto che a bassi ingrandimenti appare nello stesso campo visivo; la sua caratteristica principale è una "bolla" di vuoto circondata da una nebulosa, visibile con potenti strumenti nella zona meridionale dell'oggetto, causata dal vento stellare della giovane stella centrale, di magnitudine 8,7. In un telescopio amatoriale si rivela invece bene la nebulosa, che sembra terminare a sud con una forma ad arco.
Si tratta di una regione HII, al cui vertice meridionale è presente una struttura vuota, causata dalla pressione della radiazione di una stella centrale di colore blu (classe spettrale O), SAO 20575, di nona magnitudine, il cui vento stellare raggiunge i 2000 km/s;[1] si tratta di una Gigante blu, la quale è anche responsabile della ionizzazione della nebulosa, che emette luce propria. La sua distanza dal Sole è stimata sugli 11 000 anni-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	8337120
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Ngc 7635

Ngc 7635

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Image Index:

Contribution Index (beta):

Ngc 7635

Ngc 7635

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