NETTUNO con SMARTPHONE (CHERUBINO)

Contains: Solar system body or event

NETTUNO con SMARTPHONE

Per tentare una ripresa di questo tipo è assoluatemnte necessario avere un'ottica di ripresa di buon diametro. Il mio Vixen ED130-SS (usato per il primo test a quota 1800 metri sulle Alpi valdostane in una serata di luna piena e trasparenza eccellente del cielo, è strumento superlativo ma raccoglie appena appena la quantità di luce sufficiente per ottenere qualcosa. E' indispensabile che gli assi ottici siano coincidenti con possibili differenze molto limitate affinché la focalizzazione porti a una immagine registrabile.

Ho impiegato quasi un'ora (come dicevo in introduzione) a visualizzare sul display una insignificante traccia del pianeta. La focale di ripresa e' stata il risultante degli 860 mm. Del Vixen 130 allungati dall'oculare Takahashi LE 5mm. Oltre a questo ho dovuto ovviamente usare con cautela lo zoom 4x digitale concesso dal mio telefonino per avere un dischetto che fosse in qualche modo misurabile. Infine, dopo aver ottenuto l'immagine con un autoscatto con ritardo di 2 secondi a 800 ISO e un +2 di settaggio sulla luminosità di ripresa (ovvero i parametri massimi consentiti dal Samsung S4) ho “ritagliato l'immagine a circa il 50% ottenendo quindi un ulteriore ingrandimento di poco superiore a 2x.

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

Image Index:

Contribution Index (beta):

NETTUNO con SMARTPHONE

NETTUNO con SMARTPHONE

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Image Index:

Contribution Index (beta):

NETTUNO con SMARTPHONE

NETTUNO con SMARTPHONE

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