2012 ngc2238 Aut02_def with Scopos APO TL805 + 0.8X + AstronomikCLS + 550D (Rocco Parisi)

2012 ngc2238 Aut02_def with Scopos APO TL805 + 0.8X + AstronomikCLS + 550D

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

2012 ngc2238 Aut02_def with Scopos APO TL805 + 0.8X + AstronomikCLS + 550D

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

Solo elaborando questa nebulosa ho veramente capito quanto sia bella e ricca di particolari unici.

Ho acquisito tutti i frame in 2 sessioni (17 e 18/02/2012).

Il mio unico rammarico è stato quello di averla ripresa da un sito con Inquinamento Luminoso.

Aggiungendo il fatto che pur essendo sereno, la trasparenza del cielo non era buona (magnitudine visuale 4.5-4) e il seeing scarso; si può immaginare che pose da 240sec erano quasi al limite della saturazione del fondo cielo.

L'elaborazione è stata abbastanza complicata e solo l'integrazione di oltre 4h ha permesso che la qualità dell'immagine non venisse inesorabilmente compromessa dall'eliminazione dei gradienti "nocivi".

Dopo tanta fatica il risultato credo sia più che soddisfacente.

L'immagine è stata croppata al 90%.

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

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

Seeing 2 (scala Antoniadi inversa)

69x240s 1600iso / 21 dark /21 flat / 21 bias

Integration 4h 36min

date 17-18/02/2012

temperatura 5°C (media)

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

Elaborazione DSS + PSCS3

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.

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

2012 ngc2238 Aut02_def with Scopos APO TL805 + 0.8X + AstronomikCLS + 550D

2012 ngc2238 Aut02_def with Scopos APO TL805 + 0.8X + AstronomikCLS + 550D

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2012 ngc2238 Aut02_def with Scopos APO TL805 + 0.8X + AstronomikCLS + 550D

2012 ngc2238 Aut02_def with Scopos APO TL805 + 0.8X + AstronomikCLS + 550D

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