Treasures of Eta Carinae (Jari Saukkonen)

Image of the day 12/07/2022

Treasures of Eta Carinae

The Eta Carinae nebula is filled with many kinds of interesting details that are often overlooked when looking at the grand nebula. I have included tighter crops of the more interesting features as revisions, please take a look!

The nebula is way too big for my newtonian so I had to image this as a 2x2 mosaic. I used PixInsight's MosaicByCoordinates and PhotometricMosaic for assembling the mosaic and it worked wonderfully. Although I learned a lesson, in a 2x2 mosaic the center will contain data only from the extreme corners of each panel thus having worse image quality. Luckily I only have one "bad" corner so I was able to mostly hide it using the overlap from other panels. Next time I'll shoot an additional RGB panel to get acceptable stars for the center.

In any case, making mosaics with the 62MP ASI6200MM is madness unless you have the cpu and ram to burn. This one has about 200 megapixels at full resolution and the 32GB of memory in my image processing rig definitely wasn't too much. But I wish the PixInsight scripts could use multithreading more effectively since it's a bit boring to watch 15 cores idle.. luckily I work from home so I could just let it run in the background.

2h SHO each per panel = 24h total for the nebula
20min RGB each per panel = 4h total for the starfield and additional nebula colour

Enjoy!

B

Title: The Gabriela Mistral nebula

Description: A beautiful gem in the northwestern corner of the nebula complex. The "Cosmic Cliffs" image from JWST was taken from the northern rim of this nebula.

Uploaded: ...

C

Title: Another bubble

Description: Another bubble on the northern side of the nebula. I couldn't find a catalog entry for this, pls help!

Uploaded: ...

D

Title: The Mystic Mountain

Description: Behind the veil of ionized oxygen lies the "Mystic Mountain" famous from the image taken with Hubble. The bright gems in the top belong to the open cluster Trumpler 14.

Uploaded: ...

E

Title: The Keyhole Nebula

Description: The Keyhole Nebula fills most of this frame. Next to it, you can see the universe flipping the bird at us :D. Interestingly, the oblong shape of the bright star Eta Carinae apparently is not from my optics but from the completely saturated Homonculus nebula around the star!

Uploaded: ...

F

Title: A cloud of dementors threatening the hooded figure

Uploaded: ...

G

Title: Dark pillars rise from the background, fighting against the intense radiation that tries to tear them apart

Uploaded: ...

H

Title: More dark pillars that are being torn apart

Uploaded: ...

I

Title: Close-up of the central dark lane

Uploaded: ...

J

Title: Interesting red filaments in the background, best visible in SII

Uploaded: ...

Narrowband imaging

	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

	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
Artificial satellite

	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

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	...
PixInsight job	H35DP0IV2B4I3NOJDHV8O8IK01PUHK05
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	10h43m47s.55
RA (top/left)	10h52m30s.86
RA (top/right)	10h51m59s.37
RA (bottom/right)	10h35m54s.42
RA (bottom/left)	10h34m48s.29

Dec (center)	-59°40′52″.5
Dec (top/left)	-61°17′22″.3
Dec (top/right)	-58°03′41″.5
Dec (bottom/right)	-58°02′15″.10
Dec (bottom/left)	-61°15′53″.7

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

Image of the day 12/07/2022

Treasures of Eta Carinae

Image of the day 12/07/2022

Treasures of Eta Carinae

Equipment

Acquisition details

Description

Comments

Revisions

B

C

D

E

F

G

H

I

J

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

Image of the day 12/07/2022

Treasures of Eta Carinae

Image of the day 12/07/2022

Treasures of Eta Carinae

Equipment

Acquisition details

Description

Comments

Revisions

B

C

D

E

F

G

H

I

J

Sky plot

Histogram

In these public groups

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?

Delete this revision?

Delete this revision?

Delete this revision?

Delete this revision?

Delete this revision?

Delete this revision?

Delete this revision?

Delete this revision?

Delete this revision?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Error

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information