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Questions tagged [tracker]

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How hard or soft is the Hubble's "science floor" due to atmospheric torque? Do some kinds of observations have lower floors than others?

After 04:58 in Scott Manley's How Failed Gyros Are Making Hubble's Life Harder: And while the telescope is floating in space, it is still subject to small forces which can adjust its orientation. ...
uhoh's user avatar
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1 vote
1 answer
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What is the "handful of observations of close fast moving objects that (Hubble) can't actually track anymore" due to the new one-gyro operation?

After 13:49 in Scott Manley's How Failed Gyros Are Making Hubble's Life Harder: And so with all these systems working together, the telescope can still point at the target and still do top quality ...
uhoh's user avatar
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1 vote
0 answers
112 views

is the design of Noctilove’s barn door tracker correct?

noctilove.co.uk has beautiful images taken using his barn door tracker. It is amazing what it is possible to achieve with just the tracker and a DSLR camera. He gives designs for his tracker where he ...
dkmax's user avatar
  • 21
7 votes
2 answers
771 views

How can non-earth-orbiting satellite coordinates be obtained by amateurs?

Just a few hours ago the moon-bound spacecraft Chandrayaan-3 was launched. While it will orbit Earth for a few days, it is accelerating/changing its orbit often to prepare for the transfer to a lunar ...
2080's user avatar
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3 votes
1 answer
832 views

Single axis solar tracker tilt angle calculation

I'm working on single axis solar tracker project. Solar panels will towards the sun with maximum angle from sunrise to sunset. the panel direction is east-west or near east-west. I need to make angle ...
ybi's user avatar
  • 31
5 votes
2 answers
218 views

What are the technological advancements that made it possible for modern large telescopes to work with alt-az mounts instead of equatorial mounts?

The video Earth's Rotation Visualized in a Timelapse of the Milky Way Galaxy - 4K (linked below) and discussion below this answer to Why does a timelapse video of a stationary Milky Way make the ...
uhoh's user avatar
  • 30.7k
1 vote
1 answer
65 views

Tracking the Sun from Sunrise in the East to Sunset in the West

Is there a Correct way to mathematically allocate GPS/location of Azimuth Degrees ? EG: In the Southern Hemisphere, if North is 0 degrees, for say Sydney is direct East 90 or -90 degrees ? Then what ...
The Raptor's user avatar
5 votes
2 answers
499 views

How to design a static heliostat?

An heliostat is a device capable of reflecting the sun in a fixed point while the sun itself moves into the sky, thanks to a moving mirror. But this company astonished me with its invention: a static ...
jumpjack's user avatar
  • 569