Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  22 UMa  ·  24 d UMa  ·  27 UMa  ·  8 rho UMa  ·  Bode's Galaxy  ·  Cigar Galaxy  ·  IC 2389  ·  IC 2438  ·  IC 511  ·  IC 520  ·  IC 529  ·  M 81  ·  M 82  ·  NGC 2614  ·  NGC 2629  ·  NGC 2630  ·  NGC 2631  ·  NGC 2633  ·  NGC 2634  ·  NGC 2636  ·  NGC 2641  ·  NGC 2646  ·  NGC 2650  ·  NGC 2787  ·  NGC 2810  ·  NGC 2892  ·  NGC 2957  ·  NGC 2959  ·  NGC 2961  ·  NGC 2963  ·  And 12 more.
Getting plate-solving status, please wait...
The Angel IFN. My first go at the elusive clouds lurking above our Milky Way!, 



    
        

            Przemysław Majewski & teleskopy.pl
Powered byPixInsight

The Angel IFN. My first go at the elusive clouds lurking above our Milky Way!

Getting plate-solving status, please wait...
The Angel IFN. My first go at the elusive clouds lurking above our Milky Way!, 



    
        

            Przemysław Majewski & teleskopy.pl
Powered byPixInsight

The Angel IFN. My first go at the elusive clouds lurking above our Milky Way!

Acquisition details

Dates:
March 5, 2021 ·  March 6, 2021
Frames:
116×240(7h 44′) (gain: 140.00) -20°C bin 1×1
Integration:
7h 44′
Darks:
192
Flats:
100
Bias:
200
Avg. Moon age:
22.07 days
Avg. Moon phase:
50.84%
Bortle Dark-Sky Scale:
3.00
Mean SQM:
21.30
Mean FWHM:
3.00
Temperature:
0.00

RA center: 09h26m13s.76

DEC center: +70°2053.7

Pixel scale: 8.980 arcsec/pixel

Orientation: -156.404 degrees

Field radius: 5.993 degrees

More info:Open 

Resolution: 4000x2660

File size: 6.6 MB

Locations: Fields of Unin, Unin, Poland

Data source: Backyard

Description

Friends, long time without quality sky and quality data, so instead of doing some simple and bright nebula I've attempted this, imaging of the Integrated Flux Nebula... Almost 8 hours at f/4 on a full frame sensor still yielded a really noisy stack and I had to convolve most of the nebula using denoise algorithms. I will have more attempts at processing it, and maybe if time allows it, gather more data.

Thanks to Aleksander Kacz's insight (teleskopy.pl) I was presented with this fabulous lens! Its field quality is incredible, pin-point stars up to the corner of a full frame sensor. Also the FWHM and sharpness of a point source at the focal plane is remarkable. I do think this is the best quality lens I've touched so far, and at f/4 it isn't slow. The quality of field is comparable to the FLT156 with x1 FLAT 68 III I've had the chance of testing! (and this would be comparing a whale to a hummingbird)

This picture of the IFN shows how dilute and dim those incredibly large clouds over our Milky Way are. Even though the original data has a lot of color and good detail in M81 and M82 I've decided to stretch it without HDR and masking, just to show where, on the DR scale, this background lies!

Enough babbling on.

Enjoy the darkest f&in thing I've tried to image!

Comments

Revisions

  • The Angel IFN. My first go at the elusive clouds lurking above our Milky Way!, 



    
        

            Przemysław Majewski & teleskopy.pl
    Original
  • The Angel IFN. My first go at the elusive clouds lurking above our Milky Way!, 



    
        

            Przemysław Majewski & teleskopy.pl
    B
  • The Angel IFN. My first go at the elusive clouds lurking above our Milky Way!, 



    
        

            Przemysław Majewski & teleskopy.pl
    C
  • Final
    The Angel IFN. My first go at the elusive clouds lurking above our Milky Way!, 



    
        

            Przemysław Majewski & teleskopy.pl
    D

B

Description: After a long talk with a star astrophotographer, Dominik Sito, I got so many tips I simply did not eat, wash myself, etc., just spent time processing my data. My result, naturally, is inferior to his, but hey, it is fun anyway!

Uploaded: ...

C

Description: Never can decide, lower bgd or higher brightness. Lower this time.

Uploaded: ...

D

Description: after a few months I just went back to this for sport, I have decided to remove the color in the background as I think it is not physical, maybe the image is more dull, but oth I think it is now more accurate

Uploaded: ...

Sky plot

Sky plot

Histogram

The Angel IFN. My first go at the elusive clouds lurking above our Milky Way!, 



    
        

            Przemysław Majewski & teleskopy.pl

In these public groups

PixInsight Addicts