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Adelino Barreto
{K:12661} 2/25/2005
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Excelent photo!
Regards.
AAdelino
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no longer a member
{K:10557} 2/25/2005
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Again, another breathtaking photograph! 7/7!
Michael
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Taras R. Hnatyshyn
{K:4055} 2/24/2005
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Shane,
Any exposures longer than a few minutes really need good polar alignment to prevent field rotation (stars making arcs around the guide star). The best method for obtaining good polar alignment is the drift method. I usually do this after I do a rough polar alignment with the LX200's alignment routine. I usually shoot for no drift in a 5-minute time frame, which is usually good enough for me to get exposures up to an hour without field rotation. What I still need to do is train my mount's PEC minimize the corrections I need to make when guiding.
This image was shot with a regular telephoto lens with no filters, etc. I have an autoguider, but have had bad luck with it. This isn't due to it by itself, but just other things going wrong while using it, like my battery going from 12 to 10 V in a few minutes (still haven't figured that one out) or the film in my camera not advancing after taking a whole night's worth of photos, enjoying an aurora while the camera wa being autoguided... I may try to use it again after I complete some more wide-field work.
Taras
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Shane Finnigan
{K:1990} 2/24/2005
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WOW again! My jaw is still on my lap! So do you recomment drift aligning over motorized? Also do you use any filters, field flateners, or focal reducers? Oh 7++++++++++(again)
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Roberto Arcari Farinetti
{K:209486} 6/16/2004
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hello I'm here..
now in my couriosity.. a fantastic one.. I love the astronomy I have a little reflector telscope... Bresser Optik 150/1000.. used little time!
but the deepsky is my passion..
now this one is for me a "without words".. in a excellent composition for a great effect of deepsky!
have a little overexposure in the centered of frame but is very difficulting shot!
in attachement my last shot of venus/sun conjuction... for your comment to me too!
..if you want..
cheers
roby
7+
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Ron Wilson
{K:18362} 5/24/2004
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WOW, nice work
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Stace Walker
{K:4175} 5/23/2004
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W O W . .
*in awe*
Stace
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André Bermak
{K:14443} 5/23/2004
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Linda captura,fantástico momento!!!!!
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