NGC 4565 (Alberto Tomatis)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: IC 3571 · NGC 4562 · NGC 4565 · Needle Galaxy

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NGC 4565

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NGC 4565

NGC 4565 (nota anche come C 38) è una galassia a spirale nella costellazione della Chioma di Berenice.

Si individua con facilità 2,5 gradi a sud-est della stella γ Comae Berenices; si presenta perfettamente di taglio, così appare come un lungo fuso. Visibile anche con modesti strumenti, in telescopi da 200mm di apertura la vista è stupenda: per l'intera lunghezza della galassia è ben evidente una fascia oscura, in posizione leggermente asimmetrica rispetto al nucleo, che la rende straordinariamente simile alla nostra Galassia, alla quale per altro si avvicina sia come forma reale, sia come dimensioni. Dista dalla Via Lattea circa 52 milioni di anni-luce.

NGC 4565 è una galassia spirale gigante più luminosa della Galassia di Andromeda. Molta speculazione esiste nella letteratura sulla natura del rigonfiamento centrale. In assenza di dati dinamici chiari sui movimenti delle stelle nel rigonfiamento, i dati fotometrici da soli non possono giudicare tra le varie opzioni proposte. Tuttavia, la sua forma esponenziale ha suggerito che si tratta di una galassia spirale barrata. Studi con l'aiuto del telescopio spaziale Spitzer non solo hanno confermato la presenza di una barra centrale, ma hanno anche mostrato uno pseudobulo al suo interno e un anello interno.

GC 4565 è una delle galassie membro più luminose del Gruppo Coma I.

(Wikipidia)

RGB fatta nel 2011 con ST10 e Tahakashi BRC f/5 in bin 1x1

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	4470382
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 4565

NGC 4565

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NGC 4565

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