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Old 22-01-2010, 05:13 PM
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ngcles
The Observologist

ngcles is offline
 
Join Date: Dec 2006
Location: Billimari, NSW Central West
Posts: 1,664
Yep you're right but ...

Hi Sarah,

Quote:
Originally Posted by Shep View Post
As a local I can pretty much guarantee Trinity Beach is further than 5 km from Oak Beach which is the centreline. I'm not sure what the exact distance is as the crow flys but its def gotta be further than that. Sorry though.
You're right about the distance from Oak to Trinity along the coast -- no doubt about that at all. But, the distance from northern Trinity Beach (almost Keewara) to the closest point on the actual centre line (out in the Ocean) is somewhat less because of the angle the centereline makes with the coast.

I originally guesstimated 5km and then edited to 7 (see above). Using the map more carefully, I'd now say it is probably 8 - 8.5km. I'm about 90-95% of the way to the centreline from the southern limit that crosses the coast at Innisfall. The difference in umbral time between my location and Oak Beach will be in the order of 5 seconds shorter. Instead of being 2mins 10 sec, it'll be about 2:03 - 2:05.

In return, I get a a 30 second-odd stroll to where I'm going to observe and I can, should I wish, simply observe from the balcony of the apartment we're staying at ...


Best,

Les D
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