Timeline for Generic term for sunrise and sunset
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Jan 5, 2014 at 20:35 | history | edited | Gnawme | CC BY-SA 3.0 |
Expanded per edited question
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| Jan 5, 2014 at 7:00 | comment | added | Gnawme | By definition, sunrise and sunset occur at a zenith distance of 90.8333 degrees (90 degrees, 50 minutes). Possibly an organization whose bread and butter involved zenith distance would have its own jargon for specific instances of zenith distance (which on its own has an interesting ring...). | |
| Jan 5, 2014 at 6:21 | comment | added | Tim Parenti | @Gnawme It's quite possibly a lacuna. Or perhaps just a very technical term. I don't know... but I guess that's why I'm asking! | |
| Jan 5, 2014 at 6:15 | comment | added | Gnawme | Both sunrise and sunset occur at the precise instant that the sun's upper limb is tangent to the horizon (usually an idealized one). I haven't been able to to find a general term for that instant of tangency. | |
| Jan 5, 2014 at 5:24 | comment | added | Tim Parenti | @tchrist Right. We use sunrise to refer to the precise time at which the sun comes up from the horizon, as well as more informally to the period of time approximating that instant. That's the kind of thing I'm going for. | |
| Jan 5, 2014 at 5:20 | comment | added | tchrist♦ | I think he’s looking for the time when the sun is in sky, not below the horizon like with twilight. So he wants something for the time right after dawn and the time right before dusk. So when a star is near the horizon, but above it. | |
| Jan 5, 2014 at 5:20 | comment | added | Tim Parenti | Please re-read my question; I want to describe specific events at specific instants in time, not the periods of time surrounding those instants nor the light from them. | |
| Jan 5, 2014 at 5:16 | history | answered | Gnawme | CC BY-SA 3.0 |