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A dark space object can be seen when it passes between the observer and stars or other objects, so you need to match the spectrum behind you, which makes it a m
by datadrivenangel 2y ago
A dark space object can be seen when it passes between the observer and stars or other objects, so you need to match the spectrum behind you, which makes it a much harder problem!
Being very cold is good for long range stealth, but in low orbit the speeds are high enough that it doesn't help against a savvy adversary.
- perihelions 2y ago- "A dark space object can be seen when it passes between the observer and stars or other objects," Those are called transits. They're extraordinarily rare for any single given object. Moreover, there are quadrillions of natural objects transiting stars as a baseline noise rate, which you'd be hard-pressed to distinguish a spacecraft from. One hiding among quadrillions. Even if you were very lucky and both observed, and identified, a spacecraft transiting a star, you've instantly lost it. You would need multiple transits in close succession to recover an orbit (and predict its future positions), something which will statistically never happen.
- datadrivenangel 2y agoIf you have a number of anti-orbit laser submarines, I suspect a global network of observer stations that are passively looking for transits that don't have a known source is within your budget
- perihelions 2y agoThat doesn't help, since multiple transits are a statistical impossibility no matter how many observers you have. - "for transits that don't have a known source" That's statistically about 100% of them: small, remote asteroids or interstellar objects that have never been catalogued, and are undetectable except via transits.