DSO 遺照集 -- NGC7000

[Eddy So]

[LT]

Re-processed old data of M42 taken with DIY 6" F5 Newtonian + MPCC + LPS + 350Da

FB_light_360s_DBE_PCC_SCNR_PS.jpg (1.04 MiB) 已瀏覽 2206 次

[Eddy So]

[LT]

145. M1 in good seeing condition

This M1 is a combination of L data taken on last Tuesday at my observation site in Yuen Long and the color data taken with 100Da in 2013 at PTC. The transparency was very high at the night of last Tuesday, and the air was quite steady too.

L = 9x180s, taken with Vixen SD115S + HD flattener + LPS + 1600MM @908mm F7.9
Color data: taken with VC200L + reducer + 100Da @1280mm F6.4

When the seeing is good, some magic can happen.

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Color image taken with VC200L +100Da

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[Eddy So]

[LT]

146. M1 another version

This version is a combination of L data taken with SD115S apo + 1600MM on the 29th last month at my observation site in Yuen Long and the LRGB data (bottom image) taken with 30cm Newtonian + 8300MM in 2016 at PTC.

L = 9x180s, taken with Vixen SD115S + HD flattener + LPS + 1600MM @908mm F7.9
LRGB = 8x180s : 3x240s : 3x240s : 3x240s (bottom image) @1380mm F4.6

The result would be more better I think if more subs of L could be taken at that night.

Comparison.jpg (1.34 MiB) 已瀏覽 1925 次

[Eddy So]

[LT]

147. M42 from last week

Another attempt on shooting M42 with OSC 071MC in Yuen Long last week.
Taken with DIY 6" F4 Newtonian + Vixen coma corrector PH + LPS + 071C @570mm F3.8
13x300s @-10C, with bias, dark and flat calibrated in PI
Autoguided with SXD2 mount

By comparing with the M42 taken with the same scope and camera last time, seemed there is something wrong with this 071C. The sensitivity of this camera drops quite significant.

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[LT]

148. M42 taken with 100Da

Taken with the same optical system but with 100Da instead of OSC 071C at my observation site in YL at the night of 20221224
68x45s @iso800, with bias, dark and flat calibrated in PI
Manual dithering
Processed in PI

FB_M42_6F3-8_100Da_20221224_68x45s_YL.jpg (1.24 MiB) 已瀏覽 1759 次

[Eddy So]

[LT]

149. Horse Head in Ha

Taken with SD115S + HD reducer kit + 1600MM in Yuen Long @700mm F6.1
Ha = 13x360s @35nm bandwidth, with bias, dark and flat calibrated in PI

FB_light_DBE_HT.jpg (471.99 KiB) 已瀏覽 1676 次

[Eddy So]

[LT]

150. Jelly fish in Ha

Taken with Vixen R200SS + coma corrector PH + 1600MM in Yuen Long @760mm F3.8
Ha = 6x360s @7nm bandwidth, with bias and dark calibrated in PI, no flat
Autoguided with Vixen AXJ mount
Re-processed in PI

FB_Jelly_R200SS_F3-8_6x360s_20180801_YL.jpg (701.94 KiB) 已瀏覽 1670 次

[Eddy So]

[LT]

151. NGC3532 in R channel

A mistake was taken when setting the sequence of shooting this object in SGPro. That results RGB version of this open cluster cannot be finished. So just post the R channel data instead of a color version.

Taken with Vixen ED81SII + HD reducer kit + 1600MM in Rolleston in NZ in 2018 @495mm F6.1
R=10x240s, with unmatched dark and bias but no flat calibrated in PI
Autoguided with Vixen AP mount

FB_NGC3532_R.jpg (601.43 KiB) 已瀏覽 1618 次