NGC 7048 (Diego Barucco)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: NGC 7048

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NGC 7048

Link: http://pnebulae.altervista.org/catalogo/ngc/7048/immagini/03_img-bar3.html

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NGC 7048

Link: http://pnebulae.altervista.org/catalogo/ngc/7048/immagini/03_img-bar3.html

NGC 7048 è una planetaria poco studiata e poco considerata sia dagli astronomi che dagli astrofili, tuttavia è un oggetto molto interessante che andrebbe la pena di essere analizzato in dettaglio. Al telescopio appare come un debole dischetto di dimensioni non molto piccole e in apparenza non vi sono particolari variazioni di luminosità ma abituando bene l'occhio, se provvisti di strumenti con 20 cm di diametro è possibile evidenziare delle variazioni supeficiali che fanno apparire la nebulosa non perfettamente omogenea.

Data la mancanza di studi specialistici non è possibile stabilire quali siano le condizioni spazio-cinematiche che governano l'espansione dei gas ma è comunque interessante osservare che in riprese con filtri interferenziali si mette in mostra una netta stratificazione della ionizazzione con prevalenza dell'idrogeno lungo il margine esterno. Da riprese ad alta risoluzione sembrerebbe che a livello morfologico questa planetaria sia molto simile a NGC 6853 (M27) ed è quindi possibile che siamo di fronte ad una bipolare con asse diretto quasi secondo la nostra direzione visuale, questo perchè eseguendo lunghe esposizioni si evidenziano delle piccole propaggini orientate che fanno pressuppore la presenza di lobi, inoltre la mancanza di una cavità la rendono simile in apparenza alla famosa planetaria nella Volpetta.

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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
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	4058883
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 7048

NGC 7048

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NGC 7048

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