Talk:Twilight

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Why 6° increments?[edit]

It seems to me that there ought to be an explanation for this on the page. JanGB (talk) 10:29, 6 November 2023 (UTC)[reply]

Emerald Campus Twilight or Night?[edit]

When the sun is between 18° and 24° below the horizon, is it Emerald Campus Twilight or is it night?

I call it Emerald Campus Twilight when the sun is between 18° and 24° below the horizon.

Civil Twilight - between 0 and -6 degrees below the horizon
Nautical Twilight - between -6 and -12 degrees below the horizon
Astronomical Twilight - between -12 and -18 degrees below the horizon
Emerald Campus Twilight - between -18 and -24 degrees below the horizon

--98.31.29.4 (talk) 23:56, 2 November 2020 (UTC)[reply]

@98.31.29.4: There is no such thing as "Emerald Campus Twilight". A Google search yields zero hits for "Emerald Campus Twilight" except for the reference to it originally placed in this article by you.

There is, however, an Emerald Campus High School in Dublin, Ohio. And both of the IP editors (98.31.29.4 and 2605:a000:1103:55f:21ad:7e03:658f:78a0) who added this non-existent term to the Wikipedia "Twilight" article geolocate to Dublin, Ohio. (Sorry, but there's no kind of twilight named after your high school.) -- WikiPedant (talk) 00:53, 3 November 2020 (UTC)[reply]

Well my high school was actually Jerome, but since it currently has twilight school, and because of that I named the fourth twilight phase "Emerald Campus" Twilight.

--98.31.29.4 (talk) 03:32, 3 November 2020 (UTC)[reply]

Table of twilight durations[edit]

Would a table like this be OK to insert?

Latitude	Summer solstice		Winter solstice
Latitude	Daylight hours	Civil twilight	Daylight hours	Civil twilight
0	xx:xx	yy:yy	xx:xx	yy:yy
20 N/S	zz:zz	xx:xx	zz:zz	xx:xx
40 N/S	yy:yy	zz:zz	yy:yy	zz:zz
60 N/S	xx:xx	yy:yy	xx:xx	yy:yy

Utfor (talk) 18:05, 2 January 2021 (UTC)[reply]

Astronomical twilight: Descriptions vs. images[edit]

The various images for astronomical twilight don't seem to match the description. The description seems to imply that it is "basically fully dark", differing from true night-time only in that some of the very faintest phenomena will be hidden. But the images seem to be showing a much brighter sky. I'm particularly suspicious of the "Astronomical twilight in Goa" pic in the gallery, as the actual description of the picture doesn't say anything specifically about astronomical twilight. In fact, the description of the pic says that it was taken at 12 January 2011, 18:43:18, which according to this calculator should be after twilight has ended, so I would expect the sky to be even darker. Am I misinterpreting something, or are the pictures and/or their descriptions incorrect? Iapetus (talk) 15:43, 15 November 2021 (UTC)[reply]

Image in the section "Astronomical twilight"[edit]

I'm suspicious of the second image (at right) at the "Astronomical twilight" section. It appears to be an underexposed photograph of a civil twilight rather than an astronomical twilight, especially because no stars can be seen and because of the distinct colours. Should the photo be moved to the correct section or even removed altogether? Dsuke1998AEOS (talk) 17:01, 12 April 2023 (UTC)[reply]

I've decided to remove the image. Dsuke1998AEOS (talk) 17:30, 19 April 2023 (UTC)[reply]