Questions tagged [artificial-satellite]
Questions about man-made objects orbiting astronomical objects.
114 questions
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Do those many Internet satellites brighten up the sky at night significantly?
Sorry, this is a very subjective observation:
From the past I can remember dark skies with bright stars at winter nights like in January on the northern hemisphere.
However recently (i.e. the last ...
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Are some meteors pieces of satellites?
According to this paper: spatial flux of meteorite falls a yearly estimate for masses $>50\,\rm g$ hitting Earth would be around 17,000. To my mind that does not seem like a lot, so I would not ...
user45934
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Calculating latitude and longitude from single GNSS constellation
I am trying to find a fast and reliable way to calculate latitude and longitude of an Android smartphone using a single GNSS constellation (For example BeiDou).
What I have done so far:
Collect raw ...
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Was what I saw a satellite flare?
It was a light slightly dimmer than venus but slightly brighter than Alpha Centauri that moved reasonably quickly, a bit faster than an average plane, passing through scorpius(though scorpius was not ...
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How do I locate satellites in the sky using on-line predictions for my location?
Me and my friends are trying to watch the ISS in the night sky and I need help. I cannot make sense of the numbers n2yo is giving me. Could anyone explain how this works?
This is what n2yo is showing ...
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How to estimate artificial satellite brightness as seen from another satellite?
I'm looking for a way to estimate an object's brightness as seen by an observer in space. I expect the estimation to depend on factors such as the distance to the Sun, the Sun-satellite-observer angle,...
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Do there exist open-source implementations of non-SGP4 propagators?
I'm well familiar with SGP4 and its implementations in various languages. I am curious if there are open-source implementations of J2Mean, J2, J3, J4, etc propagation techniques.
If my terminology is ...
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Do we have the technology to create a satellite telescope constellation that uses interferometry?
Apologies for putting the bulk of the question in the description. I'm honestly not sure how to ask this properly. The idea for this question came from a Vsauce video from several year ago I can't ...
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"inconsistent TLE object name (LINE IGNORED)" error while using JPL Horizons API in python
I have troubles with usage of JPL Horizons API to generate ephemeris of more than one satellites. I'm not using and don't want to use any external libraries to do this.
Currently I have this piece of ...
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Unknown satellite transit during solar eclipse on April 8, 2024
While viewing the April 8, 2024 solar eclipse from Jackson, MO, when the moon had eclipsed about 20% of the sun (the bottom-right part), my friend and I both observed with our naked eyes (behind solar ...
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If Apophis hits spacejunk in 2029 near the Earth is it possible that it could in theory make the asteroid fall into Earth?
Would the Apophis asteroid fall to Earth in 2029 due to space junk from broken rockets falling into the asteroid and impacting it, effectively exerting a sort of frictional force in a sense to the ...
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Fixing satellite eclipse equations from textbooks that are seemingly failing
I have tried implementing equations from two different textbooks in Python to find if a satellite is in eclipse, but both fail a significant percentage of the time when tested against data from ...
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Equation for calculating boolean answer to "is this Earth satellite in eclipse"
I have found plenty of math for determining duration of satellite eclipse, but I am having trouble finding an equation that produces a simple boolean answer to the question "Is this Earth ...
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If 42000 Starlink satellites interfere with telescope observations from Earth would someone observing from another solar system detect them too?
SpaceX's Starlink constellation could place up to 42000 satellites around the Earth. Would aliens with their own telescopes notice them? They would be about 150 km apart and could reflect light of ...
user52681
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What effects you have to have in mind during LEO satellites observations?
I am attempting to calibrate my setup for conducting survey-like satellite observations similar. The idea is that I have a wide-field camera that takes images at 5FPS. The camera is equipped with a ...
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