2012 NGC1499 with Scopos APO TL805+0.8X+AstronomikCLS 550D (Rocco Parisi)

2012 NGC1499 with Scopos APO TL805+0.8X+AstronomikCLS 550D

Link: http://flic.kr/p/bjQK7H

2012 NGC1499 with Scopos APO TL805+0.8X+AstronomikCLS 550D

Link: http://flic.kr/p/bjQK7H

La modifica della Canon 550D (T2i) prima, e le brutte condizioni meteo invernali dopo, hanno frenato

i miei progetti astrofotografici; ma finalmente dopo mesi di attese si ricomincia.

Questa è la prima foto astronomica realizzata con la 550D (T2i).

Da anni aspettavo la possibilità di fotografare la famosa neb. California (NGC1499), ma non

immaginavo di riuscire a farlo da un sito con inquinamento luminoso di Classe 7(scala Bortle),

e questo valore spesso è influenzato negativamente dal livello di trasparenza dell'aria.

In queste condizioni è illusorio sperare di poter raggiungere una qualità uguale a quella raggiungibile da siti bui.

Eppure altri fattori, quali la comodità di fotografare da casa, non avere problemi di alimentazione elettrica e la possibilità di fotografare durante più sessioni, mi hanno spinto a tentare.

Non sono mancate le difficoltà nell'acquisizione: il cielo nuvoloso, la trasparenza non buona, il seeing spesso mediocre e il vento, mi hanno costretto a dilazionarla in 4 sessioni.

L'immagine è stata croppata per ovvie ragioni di sovrapposizione-allineamento delle 4 sessioni.

La mia elaborazione post-processing ha avuto lo scopo di evidenziare quanta più nebulosità.

Ottica: Rifrattore APO Scopos TL805 80mm/f7 + WO 0.8X + filtro Astronomik CLS

Modello fotocamera Canon EOS 550D (T2i) mod. Baader BCF

Seeing 2-3 (scala Antoniadi inversa)

63x180s 3200iso / 21 dark /21 flat / 21 bias

Integration 3h 9min

date 13-18-25-26/01/2012

temperatura 7°C (media)

Location Biancavilla -Catania-(Italy) -Classe 7(scala Bortle).

Elaborazione DSS+ PS CS3

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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
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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.

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Astrometry.net job	n/a
PixInsight job	n/a
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Contribution Index (beta):

2012 NGC1499 with Scopos APO TL805+0.8X+AstronomikCLS 550D

2012 NGC1499 with Scopos APO TL805+0.8X+AstronomikCLS 550D

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2012 NGC1499 with Scopos APO TL805+0.8X+AstronomikCLS 550D

2012 NGC1499 with Scopos APO TL805+0.8X+AstronomikCLS 550D

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