DSO 遺照集 -- NGC7000
Re: DSO 遺照集 -- Leo Triplet with L combined
121. Leo Triplet
While waiting for the comet A1 to rise, captured one more object for killing time, but in L channel only. So as to have a color image of this triplet, combine the color image taken with ED80Sf + 100Da in 2014.
L=13x240s, taken with SD115S + HD reducer kit + LPS + 1600MM in Sai Kung in Hong Kong on Dec 3rd @700mm F6.1
Autoguided with SXD2
Stacked in DSS with bias calibrated only
Processed in PI
With L combined
Color image taken with 100Da, very low SN ratio
While waiting for the comet A1 to rise, captured one more object for killing time, but in L channel only. So as to have a color image of this triplet, combine the color image taken with ED80Sf + 100Da in 2014.
L=13x240s, taken with SD115S + HD reducer kit + LPS + 1600MM in Sai Kung in Hong Kong on Dec 3rd @700mm F6.1
Autoguided with SXD2
Stacked in DSS with bias calibrated only
Processed in PI
With L combined
Color image taken with 100Da, very low SN ratio
Re: DSO 遺照集 -- Reprocessed M15 in PI
A reprocessed version of M15 with stacking in PI rather than in DSS.
That M15 should be taken with an ED115S apo + ATIK 383L monorather than the VSD100 F3.8 astrograph I think. Will revisit it again with SD115S + 1600MM later.
LRGB = 5x360s : 2x300s : 2x300s : 2x300s
Stacked and processed in PI with dark and bias calibrated only
That M15 should be taken with an ED115S apo + ATIK 383L monorather than the VSD100 F3.8 astrograph I think. Will revisit it again with SD115S + 1600MM later.
LRGB = 5x360s : 2x300s : 2x300s : 2x300s
Stacked and processed in PI with dark and bias calibrated only
Re: DSO 遺照集 -- M42 taken with 071C
122. M42 taken with 071C
This used 071C was brought for replacing 100Da for deep sky imaging in Hong Kong and overseas. Seems the result is quite encouraging for that move after this preliminary test at my observation site in YL.
Taken with DIY 6" F4 Newtonian + Vixen corrector PH + LPS + 071C in YL last night @570mm F3.8
11x240s, autoguided with Vixen SXD2 mount
Stacked in DSS with dark and flat calibrated
Processed in PI
Final touch in PS
This used 071C was brought for replacing 100Da for deep sky imaging in Hong Kong and overseas. Seems the result is quite encouraging for that move after this preliminary test at my observation site in YL.
Taken with DIY 6" F4 Newtonian + Vixen corrector PH + LPS + 071C in YL last night @570mm F3.8
11x240s, autoguided with Vixen SXD2 mount
Stacked in DSS with dark and flat calibrated
Processed in PI
Final touch in PS
Re: DSO 遺照集 -- M42 taken with 071C (reprocessed)
Reprocessed with another set of flats and seems the result is a bit better.
Just applied auto stretching (STF) in PI after PCC.
50% resized further for a better view in whatsapp group
Just applied auto stretching (STF) in PI after PCC.
50% resized further for a better view in whatsapp group
Re: DSO 遺照集 -- M42 from 2 sets of data
123. M42 from 2 sets of data
Stacked each set and processed in PI with dark, bias and flat calibrated to have 2 separated images
Then stacked 2 images in DSS and processed in PI again
Final touch in PS
1st set: 6x240s @iso400
2nd set: 10x120s @iso800
Both taken with DIY 6" F4 Newtonian + MPCC III + LPS + 100Da @PTC in 2016
Autoguided with SX2 mount
Also attach one light for your reference (240s @iso400)
Stacked each set and processed in PI with dark, bias and flat calibrated to have 2 separated images
Then stacked 2 images in DSS and processed in PI again
Final touch in PS
1st set: 6x240s @iso400
2nd set: 10x120s @iso800
Both taken with DIY 6" F4 Newtonian + MPCC III + LPS + 100Da @PTC in 2016
Autoguided with SX2 mount
Also attach one light for your reference (240s @iso400)
Re: DSO 遺照集 -- M1 from 2 sets of data
124. M1 from 2 sets of data
1st set:
L= 8x180s, R=G=B=3x240s, stacked in PI with darks and bias calibrated only
2nd set: L=15x180s, R=G=B=6x120s @binning 2x2
Stacked in DSS with bias calibrated only
All were taken with DIY 30cm F4 Newtonian + TV paracorr + LPS + Atik 383L+ mono camera at PTC in 2016 @1380mm F4.6
Autoguided with Vixen AXD mount
Processed in PI
Final touch in PS
Hope I can capture the L channel data again this year with 1600MM.
1st set:
L= 8x180s, R=G=B=3x240s, stacked in PI with darks and bias calibrated only
2nd set: L=15x180s, R=G=B=6x120s @binning 2x2
Stacked in DSS with bias calibrated only
All were taken with DIY 30cm F4 Newtonian + TV paracorr + LPS + Atik 383L+ mono camera at PTC in 2016 @1380mm F4.6
Autoguided with Vixen AXD mount
Processed in PI
Final touch in PS
Hope I can capture the L channel data again this year with 1600MM.
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