Timeline for Are there satellites in LEO that can be seen by naked eyes in the daytime?
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| Sep 7, 2018 at 21:25 | comment | added | hyena | our ability to see something does not depend on distance, it depends on light coming from the object, reaching our eyes and our ability to recognize the said object. it helps if the light intensity or color from the object is not similar to the background. | |
| Sep 7, 2018 at 21:02 | history | tweeted | twitter.com/StackSpaceExp/status/1038170652312850432 | ||
| Sep 7, 2018 at 11:32 | comment | added | bukwyrm | Also, is this about any man made objects, so also including those that produce light of their own (in contrast to i.e. balloons that are simply illuminated by the sun, and even with an albedo of 1 will never get brighter than a certain value)? Please include all your clarifications from the comments in the question, too. | |
| Sep 7, 2018 at 11:30 | comment | added | bukwyrm | Assuming very clear air, you can just look at something of the same relative brigthness (depending on sun angle, some aircraft or satellites will reflect sunlight to you, and be quite bright relative to the sky, which can be quite dark if there is no dust and condenstation (clouds) in the air) at a known distance, and then extrapolate. If you you just so see a black insect of 1mm at one meter against the sky, you might see an insect of similar brightness ten times as big at ten times the distance, etc. Dust and condensation will skew that. Note that, i.e. military drones are sky-camo-painted | |
| Sep 7, 2018 at 10:49 | answer | added | uhoh | timeline score: 13 | |
| Sep 7, 2018 at 10:26 | answer | added | gerrit | timeline score: 3 | |
| Sep 7, 2018 at 10:18 | comment | added | alex | I mean how height for the artificial object (especially satellties) in the sky can be seen by us in the daytime. As gerrit said, we can see the sun. | |
| Sep 7, 2018 at 10:10 | comment | added | bukwyrm | @gerrit i did indeed miss that object - though it is even more special: we can only see it in daylight :-) | |
| Sep 7, 2018 at 10:05 | comment | added | gerrit | @bukwyrm Also, we can see the sun. | |
| Sep 7, 2018 at 10:04 | comment | added | bukwyrm | 'how high can we see in the daylight' - we sometimes see the moon, so at least 300.000km , and Halleys Comet (millions of km) was also visible during daytime... as were some supernovas (trillions of km) - what is it you are actually interested in - please refine your question. | |
| Sep 7, 2018 at 9:53 | comment | added | uhoh | This is a really good question! While usually not, there are many interesting exceptions, so I expect there will be more than one answer. | |
| Sep 7, 2018 at 9:52 | history | edited | uhoh | CC BY-SA 4.0 |
deleted 20 characters in body; edited tags; edited title
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| Sep 7, 2018 at 9:35 | review | First posts | |||
| Sep 7, 2018 at 9:54 | |||||
| Sep 7, 2018 at 9:32 | history | asked | alex | CC BY-SA 4.0 |