Quote:
Originally Posted by David Fitz-Henr
Looks good Marc; do I understand that you have stacked just blue and green images for this mono image of Eta? It still shows a lot of detail in the nebula despite the lack of red subs then!
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Thanks David.
No, it's one green and one blue filter stacked together.
Quote:
Originally Posted by Larryp
Very nice, Marc!
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Thanks Larry.
Quote:
Originally Posted by batema
I think it looks beautiful. Can you tell me how long the exposure were and what scope and mount were you using. I love the pinpoint stars in this image Marc and when I image i never really get the pinpoint stars. I get the same stars but they almost always seem a little fuller rather than pinpoint. I use a William Optics Flt110 on EQ6PRO with PHD guiding.
Mark
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Thanks Mark.
Hardly pinpoint more like flaring but I don't use that scope much and I need a bit more practice. It has pretty sharp optics but a very small corrected field. I just need to work out the focuser and extension tubes sag.
It's a
90mm Carbon Fiber triplet with a corrector and a QHY9 on a G11, guided through the 8x50 finder scope and a Q-guider. The subs were 18x5min.
To get tight stars you need impeccable guiding, good polar alignment, no wind, good seeing, spot on focus. That never happens. Only in the books so don't despair.
