IC2944 (Alberto Tomatis)

IC2944

IC 2944 (nota impropriamente anche come Nebulosa di Lambda Centauri, indicata talvolta con la sigla C 100) è una regione H II della Via Lattea

australe visibile nella costellazione del Centauro; la sua distanza è pari a circa 2000 parsec (6500 anni luce) e fa parte

del Braccio del Sagittario, il più vicino braccio di spirale della Via Lattea posto più internamente rispetto al nostro.

La caratteristica più nota di questa nube è la presenza di alcuni bozzoli oscuri, noti come globuli di Thackeray; a causa della loro instabilità,

al loro interno non vi sarebbero attivi fenomeni di formazione stellare, mentre la loro origine è dovuta all'azione disgregante della

radiazione delle stelle massicce presenti nella regione, che nel corso del tempo ha eroso un'antica nube molecolare.

L'ambiente galattico in cui questa nube viene a trovarsi è fra i più complessi conosciuti fra i bracci di spirale della Via Lattea:

entro un raggio di appena 500 parsec (1550 anni luce) da essa si trovano infatti alcuni degli oggetti stellari e nebulosi più cospicui del cielo australe;

fra questi spicca la Nebulosa della Carena, gli ammassi massicci Tr 14 e Tr 16, nonché il brillante ammasso NGC 4755,

il famoso Scrigno di Gioie, visibile nella costellazione della Croce del Sud.

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 failed
Started	...
Astrometry.net job	6506420
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

IC2944

Equipment

Acquisition details

Description

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Image Index:

Contribution Index (beta):

IC2944

Equipment

Acquisition details

Description

Comments

Histogram

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Distribution of astrophotographers

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