Thread: Antares B
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Old 10-06-2021, 11:27 AM
Saturnine (Jeff)
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Join Date: Jul 2008
Location: Wollongong
Posts: 2,140
Hi Guys

Antares is an interesting double to split, have done it with my 4" F9 Achro several times but it does need steady seeing, most of the time B is a blue / green smudge nestled in the 1st diffraction ring at 250X. Back when I could use an 4mm ortho, eyes aren't good enough for that short an eye relief anymore. Maybe, next time the seeing is steady I should try the 9mm ortho and the 2.5 Powermate, but with the 5" apo as the 4" achro is now repurposed as my Ha solar scope.
Like you guys, I'm in a coastal location and the seeing is hardly ever better than Pick. 5. Haven't been able to split Sirius this year with the 5" and not from lack of trying, Rigel and Adhara are no problem on good nights though. Is interesting that I have never seen Antares B as a point of light rather than a smudge, quality of the seeing or the optics !!!, that includes with 8" and 10" newts.
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