NGC2683 and ASI071MC vs ASI2400 Camera Comparison (Vitali)

NGC2683 and ASI071MC vs ASI2400 Camera Comparison

A clear night allowed me to finally test the new ASI2400MC Pro camera and compare it with ASI071MC Pro, which I have been using so far.

Taking into account the pixel size and sensitivity, the ASI2400 should be able to gather about 2.4 times more light per pixel. The brightest pixel in the core of the NGC2683 galaxy in two best raw frames has the following values:

ASI071: 0.0375

ASI2400: 0.0619

This is actually in a good agreement with the theoretical improvement.

I've integrated 32 frames from both cameras and measured Signal-to-Noise Ratio using the SNR script from http://www.skypixels.at/pixinsight_scripts.html

ASI071 SNR = 3.471e+04, 45.40 db

ASI2400 SNR = 7.810e+04, 48.93 db

Revision C shows both integrated images, stretched using STF in PixInsight. The camera orientation is different, sorry for that, but these are the same stars. The dimmest star in the circles is more prominent on the right image obtained with ASI2400.

I've got only 5.5 hours for NGC2683 with ASI2400. Revision A is the result. Processing was not easy and it is probably not yet correct, because it was necessary to tweak parameters of various processes in PixInsight for the new data.

Revision B is an annotated version (synthetic luminance).

Thanks for looking,

Vitali

B

Description: SIMBAD annotations.

Uploaded: ...

C

Description: Comparison between ASI071 and ASI2400.

Uploaded: ...

D

Description: Re-processed a bit using the PhotometricColorCalibration in PixInsight.

Uploaded: ...

E

Description: ASI071: unprocessed stacked 32 light frames.

Uploaded: ...

F

Description: ASI2400: unprocessed stacked 32 light frames.

Uploaded: ...

G

Description: I've been trying to adapt my image processing workflow to the new camera. Finally I think I'm getting there: this revision looks fine to me for just 5 hours integration time. It also turned out, that there was a slight problem with flats, so I had to re-take them and re-calibrate the lights. Color calibration using the galaxy as white reference.

Uploaded: ...

H

Description: G channel with some stray light from lower left. It is apparently a reflection from a 6.2m star 5 LMi.

Uploaded: ...

	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

	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	...
Astrometry.net job	4188572
PixInsight job	UYYHAXB8KRX929T26VFLRP6HQNSUGD3F
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	08h52m40s.154
RA (top/left)	08h51m55s.596
RA (top/right)	08h54m40s.820
RA (bottom/right)	08h53m25s.316
RA (bottom/left)	08h50m39s.702

Dec (center)	+33°24′56″.00
Dec (top/left)	+33°01′34″.70
Dec (top/right)	+33°25′35″.95
Dec (bottom/right)	+33°48′15″.99
Dec (bottom/left)	+33°24′07″.68

Image Index:

Contribution Index (beta):