URANO con SMARTPHONE (CHERUBINO)

Contains: Solar system body or event

URANO con SMARTPHONE

Il gigante Verde, che rotola alla ragguardevole distanza di 19,18 UA dal sole, splende mediamente con una magnitudine prossima a 5.8 e sottointende un arco di circa 3,5”. Sono valori risicati ma enormemente più favorevoli di quelli che presenta Nettuno.

Il più grosso problema nella ripresa di Urano (e per Nettuno vedremo come questo sia ben peggio) risiede nel visualizzare il suo disco planetario (un puntino vagamente verdastro) attraverso il display dello smartphone. Una volta inquadrato, possibilmente utilizzando un supporto fisso, conviene scattare una serie di immagini usando la funzione “autoscatto”. Se per Venere è infatti utile tentare di “congelare” la turbolenza atmosferica con gli scatti in sequenza ad alta velocità (anche a costo di dover mantenere premuto il tasto dello smartphone con l'introduzione dell'inevitabile vibrazione conseguente), Urano richiede ingrandimenti talmente alti che questo non è possibile.

La fotografia sotto riportata è il risultato di un singolo scatto effettuato all'oculare da 5 millimetri su un rifrattore Vixen ED130-SS.

Va etto che lo strumento impiegato è indiscutibilmente poco adatto allo scopo: ha un diametro limitato (13 cm.) e una focale molto corta (860 millimetri).

Questo comporta una bassa luminosità del soggetto e una dimensione molto ridotta sul piano focale nonostante i 172x offerti dall'oculare e lo zoom 4x digitale del telefonino usato.

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	n/a
Started	n/a
Astrometry.net job	n/a
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Contribution Index (beta):

URANO con SMARTPHONE

URANO con SMARTPHONE

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URANO con SMARTPHONE

URANO con SMARTPHONE

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