Cross Staff
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seer
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Cross Staff
A few days ago I added some glow in the dark duck tape to the viewing surfaces of my prototype / testbed Cross Staff. I did take it out for a few seconds one night to test and it seemed to work and be and improvement.
Donald
Tasco BRK Essentials Model: 169735 7x35, Celestron Cometron 7x50, Bushnell 10x50 Legacy WP, Oberwerk 15x70 LW, Meade Infinity 60mm AZ Refractor, Bushnell Deep Space 3 inch Reflector, Meade Polaris 80mm EQ Refractor, Meade Polaris 114mm Reflector.
Tasco BRK Essentials Model: 169735 7x35, Celestron Cometron 7x50, Bushnell 10x50 Legacy WP, Oberwerk 15x70 LW, Meade Infinity 60mm AZ Refractor, Bushnell Deep Space 3 inch Reflector, Meade Polaris 80mm EQ Refractor, Meade Polaris 114mm Reflector.
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goldstar
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Re: Cross Staff
I think it is wonderful that anyone takes the trouble to re-create these venerable old instruments.
I believe that the ancient arts should be resurrected to remind ourselves of where we came from more often.
They can still teach us a lot and who knows?
If all of our modern technology were to fail ( massive Carrington event?) we would have to revert to the devices that served us for so long in bygone eras.
So-who's up for a mural quadrant, an astrolabe, a transit circle and timing by pendulum clock?
Dust off your old sextants and calibrate your compasses folks.
We may call upon you....
I believe that the ancient arts should be resurrected to remind ourselves of where we came from more often.
They can still teach us a lot and who knows?
If all of our modern technology were to fail ( massive Carrington event?) we would have to revert to the devices that served us for so long in bygone eras.
So-who's up for a mural quadrant, an astrolabe, a transit circle and timing by pendulum clock?
Dust off your old sextants and calibrate your compasses folks.
We may call upon you....
Scopes: 200mm f6 DOB:CR 6 150 mm f 7.5 refractor, SW ED 80 mm f 7.5. 2 X 80 mm f7.5 guides.
Mount: AVX.
NexGuide auto guider. Cameras 3 Ti and XS modded. I optron Skytracker.
Motley EP collection.
Mount: AVX.
NexGuide auto guider. Cameras 3 Ti and XS modded. I optron Skytracker.
Motley EP collection.
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Ozypic
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Re: Cross Staff
Yep and dont forget morse code. It always saves the day when the aliens come ...
Phill. Dreaming of Clear Skys .... 
SCOPE : Skywatcher 120X600 ST Achromatic Refractor.
EP's : 25mm & 10mm Plossl , Celestron 8/24mm Zoom EP,
Filters : Solar filter, Badder Fringe Killer & Moon/Skyglow.
MOUNT : Skywatcher Star Discovery goto Mount.
CAMERAS : ZWO 120 asi MC. / Sony HX400V 50X Zoom.
Binoculars : Saxon 10x50
SCOPE : Skywatcher 120X600 ST Achromatic Refractor.
EP's : 25mm & 10mm Plossl , Celestron 8/24mm Zoom EP,
Filters : Solar filter, Badder Fringe Killer & Moon/Skyglow.
MOUNT : Skywatcher Star Discovery goto Mount.
CAMERAS : ZWO 120 asi MC. / Sony HX400V 50X Zoom.
Binoculars : Saxon 10x50
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seer
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Re: Cross Staff
Astronomy is like anything else. It's how much you want to get into it. Astronomy does have a history but it does seem like everyone is more interested in looking forward then backward. I like the ability to be able to do things by myself in fact I quite often find it a necessity.
Donald
Tasco BRK Essentials Model: 169735 7x35, Celestron Cometron 7x50, Bushnell 10x50 Legacy WP, Oberwerk 15x70 LW, Meade Infinity 60mm AZ Refractor, Bushnell Deep Space 3 inch Reflector, Meade Polaris 80mm EQ Refractor, Meade Polaris 114mm Reflector.
Tasco BRK Essentials Model: 169735 7x35, Celestron Cometron 7x50, Bushnell 10x50 Legacy WP, Oberwerk 15x70 LW, Meade Infinity 60mm AZ Refractor, Bushnell Deep Space 3 inch Reflector, Meade Polaris 80mm EQ Refractor, Meade Polaris 114mm Reflector.
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Arsene37
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Re: Cross Staff
Hello !
When I was a not-retired math teacher, with some pupils :
Some of them think that boring, but, hopefully, some, not !
Enjoy,
Arsène
When I was a not-retired math teacher, with some pupils :
Enjoy,
Arsène
Petzval quadruplet 152/760 on iOptron CEM25P — XX12 Orion Skyquest — 5.5" Celestron Comet Catcher (40 years old) — Perl-Vixen 130 mm/720 mm EQ — 8 mmm, 17mm and 31 mm aspheric Hyperion — BST Explorer ED 5 mm — Baader MPCC II — Leica EP 20x-60x — 2x Barlow — TS Optics Binoculars 20x80 Triplet.
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seer
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Re: Cross Staff
That is AWESOME!
:thumb:
Donald
Tasco BRK Essentials Model: 169735 7x35, Celestron Cometron 7x50, Bushnell 10x50 Legacy WP, Oberwerk 15x70 LW, Meade Infinity 60mm AZ Refractor, Bushnell Deep Space 3 inch Reflector, Meade Polaris 80mm EQ Refractor, Meade Polaris 114mm Reflector.
Tasco BRK Essentials Model: 169735 7x35, Celestron Cometron 7x50, Bushnell 10x50 Legacy WP, Oberwerk 15x70 LW, Meade Infinity 60mm AZ Refractor, Bushnell Deep Space 3 inch Reflector, Meade Polaris 80mm EQ Refractor, Meade Polaris 114mm Reflector.
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seer
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Re: Cross Staff
Here are a few old photos take just after I got most of the work done on the one that I'm trying to make. It is still an on going work in progress.
To anyone else interested in trying to make a cross staff or other astronomical equipment I recommend the book Mathematical Astronomy for Amateurs by E.A.Beet.
I could not figure out his way of doing it in the book so I came up with another way using a protractor and thread.
I could not figure out his way of doing it in the book so I came up with another way using a protractor and thread.
Donald
Tasco BRK Essentials Model: 169735 7x35, Celestron Cometron 7x50, Bushnell 10x50 Legacy WP, Oberwerk 15x70 LW, Meade Infinity 60mm AZ Refractor, Bushnell Deep Space 3 inch Reflector, Meade Polaris 80mm EQ Refractor, Meade Polaris 114mm Reflector.
Tasco BRK Essentials Model: 169735 7x35, Celestron Cometron 7x50, Bushnell 10x50 Legacy WP, Oberwerk 15x70 LW, Meade Infinity 60mm AZ Refractor, Bushnell Deep Space 3 inch Reflector, Meade Polaris 80mm EQ Refractor, Meade Polaris 114mm Reflector.
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Burris
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Arsene37
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Re: Cross Staff
Hi !
For the teacher, a deluxe one (blackened oak and bone for graduation ; all dimensions in [french and royal] feet and inches) :
Enjoy
Arsène
Thank you !
For the teacher, a deluxe one (blackened oak and bone for graduation ; all dimensions in [french and royal] feet and inches) :
Arsène
Petzval quadruplet 152/760 on iOptron CEM25P — XX12 Orion Skyquest — 5.5" Celestron Comet Catcher (40 years old) — Perl-Vixen 130 mm/720 mm EQ — 8 mmm, 17mm and 31 mm aspheric Hyperion — BST Explorer ED 5 mm — Baader MPCC II — Leica EP 20x-60x — 2x Barlow — TS Optics Binoculars 20x80 Triplet.
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