Eta Carinae Nebula in Ha with 135 f/2 lens and Canon EF focus control (Freestar8n)

Celestial hemisphere: Southern · Constellation: Carina (Car) · Contains: Carina · Foramen · IC 2581 · IC 2714 · NGC 3255 · NGC 3293 · NGC 3324 · NGC 3372 · NGC 3496 · NGC 3503 · NGC 3532 · NGC 3572 · NGC 3576 · NGC 3579 · NGC 3581 · NGC 3584 · NGC 3586 · NGC 3590 · NGC 3603 · PK285+01.1 · PK285+01.2 · PK285+02.1 · PK285-01.1 · PK286+02.1 · PK288+00.1 · PK288+00.2 · PK288-00.1 · PK288-02.1 · PK289-00.1 · PK289-01.1 · And 16 more.

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Eta Carinae Nebula in Ha with 135 f/2 lens and Canon EF focus control

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Eta Carinae Nebula in Ha with 135 f/2 lens and Canon EF focus control

This is one of the images from my first night testing a new AstroMechanics ASCOM Canon EF Lens controller, with a Canon f/2.0 L lens and ASI1600mm.

This is an uncropped Ha image taken at f/2 and manually focused via the controller.

26x1m exposures with no processing other than levels.

Overall I'm very pleased with the result and the quality of the stars across the field with the lens wide open at f/2.

The lens was attached to the camera via the controller adapter and a ZWO mini filter wheel.

My earlier shot at long focal length is here:

https://astrob.in/340120/0/

And this view contains two other objects I have imaged:

https://astrob.in/338756/0/

https://astrob.in/338740/0/

Please note: The following tables are updated every 24 hours.

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	Distinct awarded users	Total awarded images
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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
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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
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Amateur hosting facility
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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	2629253
PixInsight job	Q8ASLWDPUEYIMZYK9FBBQ5ZI2TS8TFFU
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	10h48m41s.31
RA (top/left)	11h19m18s.79
RA (top/right)	11h04m34s.74
RA (bottom/right)	10h23m32s.92
RA (bottom/left)	10h28m11s.12

Dec (center)	-59°43′43″.3
Dec (top/left)	-62°51′18″.1
Dec (top/right)	-55°23′48″.9
Dec (bottom/right)	-56°13′48″.10
Dec (bottom/left)	-63°54′09″.6

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Eta Carinae Nebula in Ha with 135 f/2 lens and Canon EF focus control

Eta Carinae Nebula in Ha with 135 f/2 lens and Canon EF focus control

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Eta Carinae Nebula in Ha with 135 f/2 lens and Canon EF focus control

Eta Carinae Nebula in Ha with 135 f/2 lens and Canon EF focus control

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