Discovery Astrophotography with ZWO ASTRO
New AM5N Harmonic Equatorial Mount
$49.00 – $2,298.00
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Description
It is recommended to use a counterweight of ≤5 kg. When using a 5 kg counterweight, the lever arm should be installed within the range of 20 cm to 30 cm.
For counterweights of other masses, the installation position can be calculated as follows:
Assume the counterweight mass is m kg. The allowable lever arm length L is defined by:
10 N·m ≤ m × g × L ≤ 15 N·m
where g = 9.8 m/s², which can be approximated as 10 m/s². For example, if a 2 kg counterweight is used, the allowable range of L is from
10 N·m / (2 × 10 m/s²) = 0.5 m to
15 N·m / (2 × 10 m/s²) = 0.75 m.
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| Choose to Buy | AM5N, AM5N+TC40, AMH Hand Controller |
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Gerry Holmquist –
Excellent. Easy to use. Lightweight and easy to carry and quick to mount. I love it…. My former mount is collecting dust