DSO 遺照集 -- NGC7000

行星、深空天體、星野攝影等
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Eddy So
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Re: DSO 遺照集 -- M42 with L combined

文章 Eddy So » 週二 28 12月, 2021 21:08

[Good Job]

LT
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Re: DSO 遺照集 -- Leo Triplet with L combined

文章 LT » 週四 30 12月, 2021 00:16

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
FB_Triplet_L-100Da.jpg
FB_Triplet_L-100Da.jpg (858.53 KiB) 已瀏覽 1934 次

Color image taken with 100Da, very low SN ratio
Leo-Trio_20140302_ED80Sf_100Da_iso1600_13x240s_PTC.jpg
Leo-Trio_20140302_ED80Sf_100Da_iso1600_13x240s_PTC.jpg (290.64 KiB) 已瀏覽 1934 次

MIB
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Re: DSO 遺照集 -- Leo Triplet with L combined

文章 MIB » 週四 30 12月, 2021 17:39

[Good Job] [Good Job] [Good Job] [Good Job]

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Eddy So
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Re: DSO 遺照集 -- Leo Triplet with L combined

文章 Eddy So » 週四 30 12月, 2021 23:38

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LT
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Re: DSO 遺照集 -- Reprocessed M15 in PI

文章 LT » 週二 04 1月, 2022 21:52

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
FB_crop_LRGB_HT.jpg
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Eddy So
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Re: DSO 遺照集 -- Reprocessed M15 in PI

文章 Eddy So » 週三 05 1月, 2022 00:38

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LT
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Re: DSO 遺照集 -- M42 taken with 071C

文章 LT » 週四 06 1月, 2022 21:43

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
FB_M42_6F3-8_071C_11x240s_YL.jpg
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Eddy So
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Re: DSO 遺照集 -- M42 taken with 071C

文章 Eddy So » 週五 07 1月, 2022 00:20

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Wongsir
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Re: DSO 遺照集 -- M42 taken with 071C

文章 Wongsir » 週五 07 1月, 2022 13:50

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LT
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Re: DSO 遺照集 -- M42 taken with 071C (reprocessed)

文章 LT » 週五 07 1月, 2022 20:21

Reprocessed with another set of flats and seems the result is a bit better.
Just applied auto stretching (STF) in PI after PCC.
FB_Autosave_DBE_PCC_STF_PS.jpg
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50% resized further for a better view in whatsapp group
FB_Autosave_half.jpg
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LT
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Re: DSO 遺照集 -- M42 from 2 sets of data

文章 LT » 週三 02 2月, 2022 19:48

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
FB_M42_6F4_MPCC3_100Da_iso400_iso800_PTC.jpg
FB_M42_6F4_MPCC3_100Da_iso400_iso800_PTC.jpg (1.34 MiB) 已瀏覽 1713 次
Also attach one light for your reference (240s @iso400)
FB_IMG_4710.jpg
FB_IMG_4710.jpg (128.46 KiB) 已瀏覽 1713 次

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Eddy So
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Re: DSO 遺照集 -- M42 from 2 sets of data

文章 Eddy So » 週三 02 2月, 2022 22:28

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Wongsir
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Re: DSO 遺照集 -- M42 from 2 sets of data

文章 Wongsir » 週二 08 2月, 2022 14:03

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LT
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Re: DSO 遺照集 -- M1 from 2 sets of data

文章 LT » 週五 11 2月, 2022 23:18

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.
FB_crop_LRGB_-15C_-10C_PS.jpg
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Eddy So
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Re: DSO 遺照集 -- M1 from 2 sets of data

文章 Eddy So » 週六 12 2月, 2022 22:09

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