eta Carina Nebula centre detail, Trumpler 16 (Keyhole Nebula, Defiant Finger, Trumpler 14) (Paul Lloyd)

Celestial hemisphere: Southern · Constellation: Carina (Car) · Contains: Foramen · HD303308 · HD303311 · HD93128 · HD93160 · HD93161 · HD93162 · HD93204 · HD93205 · HD93250 · eta Car

Powered byPixInsight

eta Carina Nebula centre detail, Trumpler 16 (Keyhole Nebula, Defiant Finger, Trumpler 14)

Powered byPixInsight

eta Carina Nebula centre detail, Trumpler 16 (Keyhole Nebula, Defiant Finger, Trumpler 14)

The eta Carina or Great Carina Nebula is a prominent, bright, very large nebula in the southern
constellation of Carina, ‘The Keel’. It, however, is merely the bright tip of a huge molecular cloud complex,
designated Sodroski 62.

This image is a detailed view of the region around eta Carinae. Here can be found features such as the
Keyhole Nebula (the round cloud containing dark filaments, right of centre), the Defiant Finger (much
smaller object immediately to the right of the Keyhole, with the ‘finger’ pointing down), and open star
clusters Trumpler 14 (top right-hand corner) and Trumpler 16 (centre, containing eta Car).

Scattered throughout this region are small, dark nebulae, of which the Defiant Finger is an example.
These are termed Bok globules, after Bart Bok who described them in 1940. They comprise regions of
dense gas and cosmic dust, containing molecular hydrogen (H2), carbon oxides, and helium. They are
believed to be involved in star formation, often generating multiple star systems.

Telescope: APM152 APO refractor + 1.37x Barlow, f=1650mm
Camera:     ZWO ASI294MC Pro
Exposure: 54 x 300 sec, Optolong L-eNhance filter
                    Bortle 3-4 sky, 98% Moon waxing
                    frame cropped to 0.7x
Field of View: approx. 0º 19’ x 0º 14’
Image processed and prepared in PixInsight and Photoshop Elements

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	Advanced success
Started	...
Astrometry.net job	9282069
PixInsight job	VTZ3J4IDMFK8LX72FWZQ479W6S7XGWO7
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	10h45m05s.90
RA (top/left)	10h46m52s.45
RA (top/right)	10h43m18s.15
RA (bottom/right)	10h43m16s.40
RA (bottom/left)	10h46m52s.13

Dec (center)	-59°40′21″.3
Dec (top/left)	-59°30′49″.1
Dec (top/right)	-59°30′42″.4
Dec (bottom/right)	-59°49′47″.6
Dec (bottom/left)	-59°50′01″.4

Image Index:

Contribution Index (beta):

eta Carina Nebula centre detail, Trumpler 16 (Keyhole Nebula, Defiant Finger, Trumpler 14)

eta Carina Nebula centre detail, Trumpler 16 (Keyhole Nebula, Defiant Finger, Trumpler 14)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

eta Carina Nebula centre detail, Trumpler 16 (Keyhole Nebula, Defiant Finger, Trumpler 14)

eta Carina Nebula centre detail, Trumpler 16 (Keyhole Nebula, Defiant Finger, Trumpler 14)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information