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Topics - AstroScience

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Gallery / NGC6914, vdb131, vdb132
« on: 2018 August 28 21:43:32 »
Hi guys,

some of my latest work. Been waiting to image this area since last summer and have tried to image it in last July. But weather didn't played along and I could gather couple hours of Ha data, which wasn't even used later.
During new moon this month I tried again and this time I could squeeze one night of imaging and gathered 4 hours of exposure. With some clouds in between yet again.
Wonderful field of glowing hydrogen gas that looks like a magic red carpet with blue pearl gems laying in the middle...
LRGB - 1 hour to each channel 
Hope you'll enjoy!
Full res and rest of the details here:

Gallery / M106 Galaxy
« on: 2018 April 18 01:42:32 »
Hi guys,
after 5 months of not being able to shoot a single frame, last month I got lucky and could squeeze every single frame from a one perfect night.
Didn't had time to go for something faint and fuzzy, so went for a classic, M106. With perfect weather and dark skies, even 2.5 hours of luminance can give you
something to work with.

GSO 8" RC + QSI660 = 6 hours in total.
Rest of the details and high res image, as always, can be found on a dedicated page here:

Beautiful Galaxy, hope you like it!

Gallery / LBN 762 / MBM 13 - Drunken Dragon Nebula
« on: 2017 November 06 21:18:01 »
Rarely imaged (just a couple of images on web) LBN 762 is a Lynds Bright Nebula that firstly identified in 1950 in constellation Aries. It's a brownish color concentrated dust cloud which is a part of a much larger molecular cloud that is designated as MBM 13 by Magnani, Blitz and Mundy in following years. This high latitude molecular cloud of our Milky Way galaxy is a closest star nursery to our Solar System containing pre-main sequence stars.

Imaging and processing this faint stuff is always a challenge, especially when you get insufficient data ruined by bad weather. Anyways, problems aside, it's something new and fresh and intriguing, it may not came out best to my expectations, but exciting nonetheless. Caught really rare and faint galaxies in background too.

Rest of the details on dedicated page:

Thank you!

Bug Reports / ucrtbase.dll error
« on: 2017 October 25 00:19:22 »
Faulting application name: PixInsight.exe, version:, time stamp: 0x598b2136
Faulting module name: ucrtbase.dll, version: 10.0.15063.674, time stamp: 0x8ac9f9d4
Exception code: 0xc0000409
Fault offset: 0x000000000007350e
Faulting process id: 0x790
Faulting application start time: 0x01d34d5745253df6
Faulting application path: C:\Program Files\PixInsight\bin\PixInsight.exe
Faulting module path: C:\WINDOWS\System32\ucrtbase.dll
Report Id: b96efe1c-aab0-4578-a905-703f256549b6
Faulting package full name:
Faulting package-relative application ID:

This happens with Win10 and 7 .
While PixInsight already opened, minimize it and double click on any fits/xisf image on the hard drive associated with PixInsight. Image opens alright, but it throws this ucrtbase.dll error. On win10 it goes silently, without any notice. On Win7 it throws a crash popup and that the program would be closed, but it won't. After clicking Ok PixInsight stays open and all function as it should, but it always throw this ucrtbase.dll error.

Gallery / MBM54 and NGC7497
« on: 2017 October 13 04:43:08 »
Hi everyone,
wanted to share with you the result of my last imaging run. Not an easy object and I had a big plans for it in September with imaging 3 nights in a row. Of course the weather had different plans than mine ...
The second night with clouds rolling in and out and the third night were completely ruined,leaving me with insufficient amount of data in RGB channels.
So, as always, we work with what we got and here is what I could pull out of collected data:

During processing I found out that there is a great amount of background galaxies, simply amazing, so I decided to create annotated version were I could easily mark more than 80 far distant worlds!
There is of course even more than 80 which looks like a single stars, so I didn't marked them, only the brightest and obvious.

Almost 13 hours of data
QSI 660 WSG-8

Rest of the technical details and full resolutions can be found here:

Thank you!

Bug Reports / ImageIntegration not preserving PEDESTAL keyword
« on: 2017 September 23 06:16:24 »
I noticed that in 1.8.5. Image Integration tool doesn't preserve PEDESTAL keyword and it's value after performing integration.

I pre-calibrate each dark with master bias and adding 200 DN of pedestal during calibration. Open FITS Header of each calibrated dark and PEDESTAL and it's value is in there.
After Integration of master dark , PEDESTAL and it's value are vanished from Fits Header of Integration and therefore it doesn't get automatically subtracted during Light frame calibration.

Thank you.

Gallery / Colorful Elephant's Trunk (IC1396A)
« on: 2017 August 05 07:45:56 »
Hi guys,
want to share with you this colorful, closeup rendition of this well-known molecular cloud called Elephant's Trunk nebula.
Imaged during two nights in July 2017. Actually it was also a first light for QSI 660 wsg-8 camera paired with my GSO 8" RC scope. What I can tell, just love this camera, very low readnoise, very low dark current and very well made body matching highest standards.
This is the LRGB version with 10 hours and 36 minutes of exposure with only 72 minutes for each color binned 2x2. Higher resolution and rest of the data can be found here:

Thank you!

Gallery / NGC3718, NGC3729 and Hickson 56
« on: 2017 May 13 06:02:41 »
Hi guys,
16 hours and 40 minutes of deep field for this peculiar pair of galaxies. Amazingly, I've been able to record a couple of really faint galaxies, faint as 22g magnitude.
There is literately dozens of background galaxies which I simply didn't had time to mark them all. Love these unusual galaxies. Imaged in 4 nights during March and April 2017.
Hope you enjoy it!


Gallery / M81, M82 and IFN, 20 hours
« on: 2017 April 21 10:42:01 »
Hi guys, here is some crazy stuff.
20 hours, Atik414 EXM (11mm), FSQ106. 4.5 hours of Ha.

Link to the webpage with rest of the details and hi res:

Bug Reports / BasicCCDParameters script wrong calculations
« on: 2017 March 13 07:53:43 »
Hi guys, I think I stumbled upon a bug in CCDParameters script, giving false calculations.
I'm not sure, but take a look at the image.
Standard deviation of B1-B2 is 22.079 ADU
Gain is 0.255 e/ADU
both of these match my own calculations, but ReadNoise from the script shows 3.987 e and as far as I know the ReadNoise should be
22.079*0.255=5.6 e
which is making sense with the manufacturer specification.
Have no idea why the script shows 3.9 e of readnoise.

Gallery / NGC660 - Polar Ring Galaxy
« on: 2016 October 05 23:58:48 »
Rare and peculiar galaxy that just cry out loud for large aperture and many hours of exposure.
I wish I could pull out much more Ha, but, anyways, here is my try at this object with 8" RC.

Gallery / M33 - 17 Hours with DSLR
« on: 2016 September 11 23:34:33 »
Hi guys,
in 2014 I had attempted to image this galaxy over two nights, but weather didn't played well so brought just 6 hours of data.
Last new moon I had an opportunity to shoot it again with same setup only this time I managed to pull additional 11 hours.
Here is the result of all combined data that I want to share with you :
Thank you!

Gallery / VDB 123 - Reflection Nebula
« on: 2016 July 15 08:36:27 »
VDB 123 is a reflection nebula, that lies in the vast dark cloud also known as Serpens Cloud in Serpens constellation. VDB 123 is 9.2 magnitude of brightness and belongs to catalog of 158 objects published by the Canadian astronomer  Sydney Van Den Bergh. Challenging object that is rarely imaged by amateur astronomers. Imaged during 3 nights in July and totaling 13 hours of exposure.
Rest of the information and full res image can be found on dedicated page on my website here:!vdb123/w6p59
Comments welcome as always!

Gallery / M94 - Cat's Eye Galaxy
« on: 2016 June 12 09:25:18 »
Hello guys! Latest and beautiful, with just a bit over 15 hours of total integration time during three nights. Couldn't believe that the faint halo is so large, very peculiar galaxy with nice colors, challenging and fun to process.
Hope you enjoy it!

All the info at my website:!m94-galaxy/npid3

Gallery / NGC3628 - Hamburger Galaxy
« on: 2016 April 28 02:17:10 »
Hi guys, I'd like to share with you my last work on NGC3628.
It was a two months hunt and due to a bad weather I've managed to get only 3 hours of Luminance and hour and half for the color. Unfortunately, couldn't get any Ha data.
Despite the low amount of data this is what I managed to pull off.
RC 8"@ f5.4 + Atik 414M
Rest of the info can be found on my website:!ngc3628-galaxy/f5877

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