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Good articles from Sky & Telescope.
- DaveGrennan
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- IFAS Astronomer of the Year 2010
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16 years 10 months ago #57591
by DaveGrennan
Regards and Clear Skies,
Dave.
J41 - Raheny Observatory.
www.webtreatz.com
Equipment List here
Good articles from Sky & Telescope. was created by DaveGrennan
Meant to post this a while back.
A few good articles from S&T on everything from caring for your equipment to getting the best out of it.
www.skyandtelescope.com/howto/diy
Some good stuff in there for beginners and even the more experienced.
A few good articles from S&T on everything from caring for your equipment to getting the best out of it.
www.skyandtelescope.com/howto/diy
Some good stuff in there for beginners and even the more experienced.
Regards and Clear Skies,
Dave.
J41 - Raheny Observatory.
www.webtreatz.com
Equipment List here
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- pj30something
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- Super Giant
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16 years 10 months ago #57595
by pj30something
Paul C
My next scope is going to be a Vixen VMC200L Catadioptric OTA
Replied by pj30something on topic Re: Good articles from Sky & Telescope.
Ha ha that binocular mount looks like something the French used to cut off the heads of royals.
Paul C
My next scope is going to be a Vixen VMC200L Catadioptric OTA
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- Frank Ryan
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- Super Giant
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16 years 10 months ago #57673
by Frank Ryan
My Astrophotography
Shannonside Astronomy Club __________________________________________
Meade ETX-125PE, Bresser 10 x 50 Binos & Me Peepers
Replied by Frank Ryan on topic Re: Good articles from Sky & Telescope.
Thanks Dave.
My Astrophotography
Shannonside Astronomy Club __________________________________________
Meade ETX-125PE, Bresser 10 x 50 Binos & Me Peepers
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- dave_lillis
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- Super Giant
16 years 10 months ago #57725
by dave_lillis
Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.
+ 12"LX200, MK67, Meade2045, 4"refractor
Replied by dave_lillis on topic Re: Good articles from Sky & Telescope.
A good link.
I'm currently in the middle of making a dew heater for the telrad and will be off to maplin tomorrow to get 7 10ohm 1or2 watt resistors.
I'm currently in the middle of making a dew heater for the telrad and will be off to maplin tomorrow to get 7 10ohm 1or2 watt resistors.
Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.
+ 12"LX200, MK67, Meade2045, 4"refractor
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- Seanie_Morris
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16 years 10 months ago #57729
by Seanie_Morris
Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.
Replied by Seanie_Morris on topic Re: Good articles from Sky & Telescope.
A dew heater for the Telrad Dave, sounds interesting. Also sounds like overkill, but I do know where you're heading with it, especially on a manually driven scope.
Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.
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- dave_lillis
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- Super Giant
16 years 10 months ago #57755
by dave_lillis
Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.
+ 12"LX200, MK67, Meade2045, 4"refractor
Replied by dave_lillis on topic Re: Good articles from Sky & Telescope.
You might think its too much, but it doesn't last 1 hour before it starts to dew over and from then on I'm constantly drying it, its very exposed up there on the scope.
So I'm pumping 2 watts of heat into it, the amount you'd use for a 6 inch scope, it reckon that'll be enough to keep it.
I'll get 5 ohm resistors if they have them and make it 4 watts.
That'll use 0.25 amps so would over the night (say 8 hours max) if would use 2 amps hours of the battery system, not much really.
Overkill?? definitely!, but who cares so long as it keeps the telrad window clear.
So I'm pumping 2 watts of heat into it, the amount you'd use for a 6 inch scope, it reckon that'll be enough to keep it.
I'll get 5 ohm resistors if they have them and make it 4 watts.
That'll use 0.25 amps so would over the night (say 8 hours max) if would use 2 amps hours of the battery system, not much really.
Overkill?? definitely!, but who cares so long as it keeps the telrad window clear.
Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.
+ 12"LX200, MK67, Meade2045, 4"refractor
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