NavList:

Patrick,

Try backlighting the bubble objective with a clip on LED. I've had good luck doing this on aircraft bubble sextants.

The 7x35 is probably too large for the Venus Tamaya and the field of view would be reduced. Consider upgrading to the Jupiter Tamaya which has bigger mirrors. Handle one first if you can before laying out $400 to $600 for a used one.

Greg Rudzinski

[NavList] Re: Having trouble
From: Patrick Goold
Date: 10 Jan 2012 19:46

Greg,
I have the "practice bubble horizon" that Celestaire sells. No good at night. Is there an illuminated version that does not cost $900?

I recall the scene from Das Boot. I try to imagine Tintin directed by Wolgang Petersen.

Patrick

On Sun, Jan 8, 2012 at 11:11 PM, Greg Rudzinski <gregrudzinski---com> wrote:
Patrick,

You must of course keep after it until mastered. Try picking up a bubble sextant (octant) on ebay for backyard practice or through the kitchen window observations during winter. After putting in some hours with the bubble sextant then a regular sextant will seem rock solid.

As for the movies - give Das Boot a watch. There is a great sextant and sight reduction scene where the whole crew is hovering over the poor navigator at the sub's chart table.

Greg Rudzinski

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