M27 from PTC

行星、深空天體、星野攝影等
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LT
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文章: 1895
註冊時間: 週日 17 8月, 2003 23:20
來自: YL
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M27 from PTC

文章 LT » 週日 29 9月, 2019 01:07

Had an idea on how to reduce the impact of light pollution on imaging deep sky objects and so went out to PTC on last Friday night to take a trial. But it was a bit late to get there. Not much time to take data. Moreover, the transparency was low too.

Taken with ED81SII apo + flattener HR + 1600 MM-Cool + AP non-goto mount @640mm F7.9
R=G=B=5x300s @-10C, acquisition via SGPro & autoguided with 5cm guiding scope + Lodestar + PHD2
Bias calibrated and stacked in PI without any flat and dark calibrated
DBE, BN, CC, HT, CT and color saturation in PI and final touch in PS
M27_crop_PS.jpg
M27_crop_PS.jpg (893.5 KiB) 已瀏覽 432 次

anyone
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Re: M27 from PTC

文章 anyone » 週日 29 9月, 2019 08:49

[Good Job]

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Carl Chan
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Re: M27 from PTC

文章 Carl Chan » 週三 02 10月, 2019 19:07

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

LT
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文章: 1895
註冊時間: 週日 17 8月, 2003 23:20
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Re: M27 from PTC and TMS (last night)

文章 LT » 週三 02 10月, 2019 19:51

Taken with Vixen AP mount + ED81SII APO + HD flattener again last night but at TMS.

R=G=B=5x300s with bias and dark calibrated in PI, autoguided.

The sky was so hazy that the polaris could only barely seen with naked eye!!!!
M27_DBE_PCC_PI.jpg
M27_DBE_PCC_PI.jpg (1.04 MiB) 已瀏覽 346 次

LT
中子星
文章: 1895
註冊時間: 週日 17 8月, 2003 23:20
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Re: M27 from PTC and TMS (last night)

文章 LT » 週三 02 10月, 2019 19:52

LT 寫:
週日 29 9月, 2019 01:07
Had an idea on how to reduce the impact of light pollution on imaging deep sky objects and so went out to PTC on last Friday night to take a trial. But it was a bit late to get there. Not much time to take data. Moreover, the transparency was low too.

Taken with ED81SII apo + flattener HR + 1600 MM-Cool + AP non-goto mount @640mm F7.9
R=G=B=5x300s @-10C, acquisition via SGPro & autoguided with 5cm guiding scope + Lodestar + PHD2
Bias calibrated and stacked in PI without any flat and dark calibrated
DBE, BN, CC, HT, CT and color saturation in PI and final touch in PS

M27_crop_PS.jpg

LT
中子星
文章: 1895
註冊時間: 週日 17 8月, 2003 23:20
來自: YL
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Re: M27 (2 night data combined )

文章 LT » 週四 03 10月, 2019 00:12

Final product, combined data obtained from 2 nights @PTC and TMS separately.

All data taken with Vixen AP non-goto mount + ED81SII apo + HD flattener @640mm, F7.9
R=G=B=6x300s(PTC)+5x300(TMS) @-10C, with bias and darks calibrated in PI

SNR still very low due to too much pollutant in the air and M27 was quite low to the west horizon when being imaged.
M27_crop_PTC_TMS_PS.jpg
M27_crop_PTC_TMS_PS.jpg (953.71 KiB) 已瀏覽 329 次

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Eddy So
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Re: M27 from PTC

文章 Eddy So » 週二 08 10月, 2019 19:54

[Good Job]

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