M51 The Whirlpool Galaxy (G400)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: IC 4278 · M 51 · NGC 5194 · NGC 5195 · Whirlpool galaxy

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M51 The Whirlpool Galaxy

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M51 The Whirlpool Galaxy

The second target with 60/240mm guiding on the 10"-ACF after M13 two days before. This time the object driftet to the bottom frame by frame. First I thought it is the dithering but I guess it was the meridian flip. The calibration chart in PHD also shows a significant drift in declination starting about half the way gone. Beyond that I am really troubled this time with the colors. I will redo from scratch. But for now I decided to finish with the monochrome version of M51.

Original
B
Final
C

B

Description: Tweakin' the Curves...It doesn't get any better! I guess I have to redo from scratch in the field.

Uploaded: ...

C

Description: Started from scratch with the processing. Different values on DBE. What a difference. Smothly processed thereafter. Basics, basics, basics....

Uploaded: ...

Schmidt-Cassegrain Telescope (SCT) Imagers

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Status	Advanced success
Started	...
Astrometry.net job	2010639
PixInsight job	Y1M0J3YHX2G2DTP5LSD4D6HSXL879244
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	13h29m49s.438
RA (top/left)	13h29m27s.216
RA (top/right)	13h28m42s.272
RA (bottom/right)	13h30m11s.447
RA (bottom/left)	13h30m57s.210

Dec (center)	+47°12′43″.77
Dec (top/left)	+47°27′06″.11
Dec (top/right)	+47°03′14″.23
Dec (bottom/right)	+46°58′21″.33
Dec (bottom/left)	+47°22′10″.81

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M51 The Whirlpool Galaxy

M51 The Whirlpool Galaxy

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M51 The Whirlpool Galaxy

M51 The Whirlpool Galaxy

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C

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In these public groups

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