Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4263  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool Galaxy
M51 by new moon, Jean-Baptiste
M51 by new moon
Powered byPixInsight

M51 by new moon

M51 by new moon, Jean-Baptiste
M51 by new moon
Powered byPixInsight

M51 by new moon

Equipment

Loading...

Acquisition details

Loading...

Description

LRGB : 240x50x50x50 x60sec
Ha : 12x300sec

After posting M51 by full moon, I wanted to see what would give M51 by new moon

Strange feelings after this one : I realised that more than 60% of my subs had guiding issues, mainly in DEC. Despite average-good figures with phd2 (0,5-0,7" RMS)
The magic of integration process (or the magic of averaging  you pick what you prefer)  gave round stars in the end but at the huge cost of loosing resolution

So I kept everything and tried to get something out of it, I am still hesitating on which way to go during processing, time will tell me if I have a preference. The version here is a crop of the center (3500x2500)

Comments

Sky plot

Sky plot

Histogram

M51 by new moon, Jean-Baptiste