Starship Asterisk*

"The solstices are when the days and nights are the least equal" on and around the poles, of course, day and night are always exceedingly unequal, solstice or not - if it is day, there is no night for six months, if it is night, there is no day for six months. there the sun rises only once...

Today is an equinox, a date when day and night are equal *** perhaps in los angeles, but not in am*dam: 07:27 Maandag 23 september 2019 (CEST) Zonsopgang in Amsterdam 19:37 Maandag 23 september 2019 (CEST) Zonsondergang in Amsterdam *** i must be the dullest person on this forum, but i can't for the...

Today at 1:54 am (UT) is the equinox ("equal night"), when day and night are equal over all of planet Earth. *** i wish that were true, but it isn't. on the equinoxes the day is on all places on earth longer than the night. for amsterdam it is Date Sunrise Sunse 23 september 07:28 19:37 a...

Today at 1:54 am (UT) is the equinox ("equal night"), when day and night are equal over all of planet Earth. *** i wish that were true, but it isn't. on the equinoxes the day is on all places on earth longer than the night. for amsterdam it is Date Sunrise Sunse 23 september 07:28 19:37 a...

"To help find out, the robot Cassini spacecraft now orbiting Saturn ... " didn't cassini crash into saturn in september 2017?

Explanation: Of course the equinox date results in (mostly) equal night and day all over planet Earth.

except at the poles, both of which have midnight sun

splendid picture, but somewhat sloppy caption> 'Wisps like this are all that remain visible of a Milky Way star. About 7,000 years ago that star exploded in a supernova leaving the Veil Nebula. At the time, the expanding cloud was likely as bright as a crescent Moon, remaining visible for weeks to ...

splendid picture, but somewhat sloppy caption> 'Wisps like this are all that remain visible of a Milky Way star. About 7,000 years ago that star exploded in a supernova leaving the Veil Nebula. At the time, the expanding cloud was likely as bright as a crescent Moon, remaining visible for weeks to p...

very good timr-lapse video. yet: "a time of year when day and night are most nearly equal. " - almost there: both poles and adjacent areas bathe in 24 hr sunlight, no night there.

i'm happy that finally someone (actually two someones) agree with me in trashing the 'equinox = equal night & day' idea. the earth is no bald marble, the sun is not a point, and the poles are flattened, all three of which combine - conspire? - to put the 'equal night & day' idea on a par wit...

bystander wrote:The equinox is defined as the day the sun crosses the equator. The time of the most recent crossing was 2016 March 20 04:30 UTC. This time is the same for all points on the Earth.

and that is the exact definition, 'equal night and day' having no place in it.

Personally, I buy the explanation as reasonable given that "day" and "night" are loosely defined concepts to begin with, interpretable in many ways. This wording clearly expresses what's going on at the equinox in a nontechnical way that is accessible to most people. however 'lo...

" today [is] a day of equal night (("aequus"-"nox") and day time" - it is not. the correct line would be: 'today nowhere on earth are day and night of equal length, day being longer everywhere (on both poles there's 24 hrs daylight)". your statement would be true ...

" today [is] a day of equal night (("aequus"-"nox") and day time" - it is not. the correct line would be: 'today nowhere on earth are day and night of equal length, day being longer everywhere (on both poles there's 24 hrs daylight)". your statement would be true i...

'shorter', sure, but its 'clarity' is false - what 'occurred' 150 years ago with the real eta carinae is unknown, what we noticed and notice is always some 7,000 year old news. perhaps it's been a supernova for the past 6,000 years - we won't know until a thousand years hence.

Historical records do show that about 150 years ago Eta Carinae underwent an unusual outburst that made it one of the brightest stars in the southern sky. you mean to say: "Historical records do show that about 150 years ago Eta Carinae was noticed to have undergone an unusual outburst that ma...

what strange geography : ' Ibiza, an island in southeastern Spain.' i know about the rain in spain, never about an island in spain - and southeast?

and of course the flattening of the earth towards the poles

the equinox means that today will have a nighttime and daytime that are both 12 hours long. *** not only is this plainly wrong - the equinox is not the equilux, and as pointed out, the earth is always more than half lit, it is also wrong to say that " In fact, today being an equinox, the Sun ri...

" Between 1838 and 1845, Eta Carinae underwent the Great Eruption" - you mean, surely, " "Between 1838 and 1845, Eta Carinae was observed to undergo the Great Eruption" - the thing itself occurred thousands of years ago.

that's why astronomers rarely make any effort to consider when something "really" happened, not true, they make enormous efforts to determine the distance of objects, i.e. how long ago any phenomenon observed 'really' happened *** as all that matters is when the observation occurs. *** ex...

let's not forget eta carinae is some 8000 light years away, so we don't know anything about its situation 'now'. all we can sy is that 8000 years ago it has not yet exploded. 'Historical records do show that about 150 years ago Eta Carinae underwent an unusual outburst that made it one of the brigh...

Eta Carinae may be about to explode. But no one knows when - it may be next year, it may be one million years from now. *** let's not forget eta carinae is some 8000 light years away, so we don't know anything about its situation 'now'. all we can sy is that 8000 years ago it has not yet exploded. '...

" Making a complete circle, 360 degrees, in 24 hours, " - not true: "making a complete circle, 360 degrees, in 23 hrs, 56 minutes and some 4 seconds" - bjmb

"Yesterday was an equinox, a date when day and night are equal." that is not true, yesterday the day was everywhere on earth a bit or a lot longer than the night, on both poles there was midnight sun