Gina
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Everything posted by Gina
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That's it - picture gone except for the brightest stars.
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Just checked the sky and there's another bank of cloud heading this way. When that gets here I shall pack up. I could do with sorting out my all sky camera - save me going outside to see the sky but top priority is the observatory power distribution box and ROR motorisation.
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Looks like I could do with more cooling for SII subs. Winter should sort that out. I guess I could augment the fan on the ASI1600MM-Cool and increase the airflow or even cool the air going in. I can get -35°C or even -40°C in the winter. Makes quite a difference.
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Still clear here but don't know how long for.
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Turned up the cooling by setting temperature to -30°C which it's just maintaining. This is better.
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SII doesn't seem as good as last night. This is a 3 minute exposure at maximum gain and temp of -20C. Stretched in GIMP.
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CO is no longer showing clear sky for tomorrow night. I might just set up for some SII subs but I won't be having another late night.
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The sky has cleared again but I think I'm too tired to do any messing about tonight.
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A great big bank of black cloud has come over from the west and about to obscure the sky here so I have closed the roof and given up for tonight.
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Still solid red here!
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Amazingly, the sky is clearing!
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That's better - mount is working again.
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Doesn't like that USB port - I'll put it back!
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All connections seemed fine but I've plugged the mount into another USB port. See if that works. The mount had moved.
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I'll have to go out and check (again).
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It might do. But now I seem to have another problem. Ran Ekos and all devices connected. Then tried the solve and slew to object and mount reported connection failure.
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I guess it's to do with gravity acting along the axis with Alt-Az whereas it acts at an angle to the RA axis with an Equatorial mount.
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- diy telescope
- imager
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I need to get more familiar with KStars/Ekos. I reckon there should be a way of getting the mount to slew the other way. Maybe invert the reference image.
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HAH!!! Been out to the observatory with the W7 laptop and tested the mount with imaging rig. Found the problem - needs a meridian flip to give enough mount movement!! Actually, the meridian flip could be done before starting with a starting time of 10pm. If the rig had started on the other side there wouldn't have been a problem.
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Is it???
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Why use an Alt-Az mount and then have to de-rotate? What's wrong with an Eq mount? What am I missing here?
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Well, I intend to make the best possible use of them.
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That looks a lot more promising.
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OH!!! That's not good news! Do you know what the problem was?
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Just had a look on FLO. Baader have filters almost as narrow as Astrodon and much cheaper - 3.5nm, 4.5nm, 4.5nm. ZWO do a set of 7nm filters at under £400. I have Astrodon Ha and SII in 5nm bandwidth. I guess I could get a Baader OIII to give me an effective 5nm set. that would cost around £300.
