Astroart Forum

I just got a ZWO ASI 1600 MM Cool this weekend, and I tested it last night. As expected, the 4656x3520 pixel images takes up approximately 32 MB disk space, the camera is 12 bpp => 2 bytes. However, after stacking, the resulting fits file is 64 MB ! The fits header for a single light, says "BITPIX ...

Thanks.

Hi all !! I am a new user of Astroart 7 and I have a doubt because I want to select a part of an image to enlarge it and put it in negative in the initial image (to highlight that part) but I can not see it in negative. I copy a selection of the initial image, I paste it as a new image and then I e...

I was using C8 @ 1390mm, SXV-694 Pixel size: 4.54uM x 4.54uM Field size 30.9 x 24.7 arcmin 0.674 arcsec/pixel. Don't know what guiding camera has to do with this but it's a ASI120mm and 50mm finder. Strange thing is like I wrote first Find coordinates worked then tried Plate solve center, it moved ...

Back to this topic now that I have used AA's plate solving more. Mixed feelings about it. It doesn't always center object using plate solve (even if it has found coordinates). And in my last session I first used Find coordinates, then plate solve center, not center, then again Find coordinates and ...

what exposure time are you using?

Does the ADU reach 4096 during terrestrial photography?

This article may be of some use:

http://www.stark-labs.com/craig/article ... earity.pdf

Is the Image statistics Min/Max values ADU values? How does AstroArt calculate the values? For my Canon 1000D (12-bit) Max values never reaches the expected 2^12-1=4095 but is always arround 3500 to 3600. What is the min and background values? IIRC, Canon adds an offset which then reduces the ADU r...

I was experimenting on a 30 image stack and I found that the value for FWHM is very sensitive while elongation is insensitive but FWHM rejection required elongation of 1.1 or greater. Elogation = 1.1 A FWHM value of 2.086 would reject 6 images A FWHM value of 2.085 would reject 7 images A FWHM value...

The Nikon D800 and D800E were successfully tested with the modified Nikon 1.1 driver.

thanks Fabio.

It should either work correctly, goto to a wrong location, or do nothing and report an error message. If it goes to the wrong location check to make sure that you did not get a false solve on the image. I have found that occasionally the goto will be inaccurate for very short slews and then it might...

Would it be possible to add D800 and D800E support to the driver?

I'd be happy to test it ASAP.

thanks

Hello Brujo, Never dared to try to center this way. Will try it out next time. Thanks for sharing! I have also been using this feature successfully. I am now imaging remotely using Chrome Remote Desktop to control two observatory computers, each controlling a mount, camera, autoguider and focuser: ...