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Zeta Aquarii

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#1 labmand

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Posted 13 September 2013 - 11:07 PM

I believe the WDS shows the pa of 167 for this dbl.
My observation looked more like 90 or 270 depending on
which star was the primary ( primary: 4.4, 4.6) so I did a search of the current pa and I did get a posting of
current PA 266º and separation: 2.3 from 1 site which was
alot closer to my observation. This is preaty new
to me but most stars I observe are close to the pa listed.
If you have a chance to take a look please let me know what you see.
thanks

#2 ssmith

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Posted 14 September 2013 - 11:07 AM

Hi Dave-

I think that you just got your orientation off by 90 degrees as the PA of 167 deg appears to be correct.

I photographed Zeta Aqr just last week and I put together a little composite (Attached) which shows the PA. The east-west axis is established by a star trail photo I took of zeta after my primary exposure just for this purpose. I imported the picture into AUTOCAD to measure the angle and it measured at 165 degrees, close to the published value.

Steve
Castle Rock, CO

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#3 labmand

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Posted 14 September 2013 - 11:06 PM

Thanks Steve, I'll have to take another look when the clouds clear. Just was funny all other dbls apeared to
match the listings, not sure what I did wrong, maybe late night/tired eyes






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