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Old 21-02-2020, 08:52 PM
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Dark sky rules !

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Fomalhaut and Achernar in full daylight

With lack of enough clear skies for AP, I did some visual observations here in Oz between clouds in the past few nights with my ED 110mm.


But yesterday (after)noon the sky was so clear blue in Katoomba / Mt Victoria, that around 13:00 (Sun about at its highest point) I set up my scope and looked up Venus (a no-brainer) and then looked a few objects:


* Mercury: FAIL. too close to the Sun and too faint (+1.5) and poor seeing
* Fomalhaut +1.1, not too difficult, I could see the star, almost overhead, only 21 from the Sun.
* Achernar +0.4, very easy, particular when using a polarizer filter which darkens the blue sky background without fainting the star (or planet).


Polarization filters work best when the object is about 90 from the Sun.
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Old 21-02-2020, 09:16 PM
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GUS.K (Ivan)
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Interesting, thanks for sharing. How long are you in Katoomba for?
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Old 22-02-2020, 08:02 AM
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Dark sky rules !

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Originally Posted by GUS.K View Post
Interesting, thanks for sharing. How long are you in Katoomba for?
Until Tuesday and then I don't know. I hope the weather improves, it is cold and foggy now here.
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Old 22-02-2020, 08:26 AM
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GUS.K (Ivan)
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Tuesday evening looks like it might be clear at this stage and maybe next Saturday at the airfield if you are still here. If Tuesday is clear, I'll be setting up my scope in Shipley(near Blackheath), you're welcome to join me. (PM if interested).
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