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GeneralSo how do I explain that? Pin
OriginalGriff3-Jan-19 0:59
mveOriginalGriff3-Jan-19 0:59 
GeneralRe: So how do I explain that? Pin
Phil J Pearson3-Jan-19 1:13
MemberPhil J Pearson3-Jan-19 1:13 
GeneralRe: So how do I explain that? Pin
Richard MacCutchan3-Jan-19 1:14
mveRichard MacCutchan3-Jan-19 1:14 
GeneralRe: So how do I explain that? Pin
Chris C-B3-Jan-19 1:22
MemberChris C-B3-Jan-19 1:22 
GeneralRe: So how do I explain that? Pin
OriginalGriff3-Jan-19 1:27
mveOriginalGriff3-Jan-19 1:27 
GeneralRe: So how do I explain that? Pin
Chris C-B3-Jan-19 1:48
MemberChris C-B3-Jan-19 1:48 
GeneralRe: So how do I explain that? Pin
YaakovF5-Jan-19 22:38
MemberYaakovF5-Jan-19 22:38 
GeneralRe: So how do I explain that? Pin
Daniel Pfeffer3-Jan-19 1:36
professionalDaniel Pfeffer3-Jan-19 1:36 
As Phil said, the difference between perihelion and aphelion is only ~3.4%, so that isn't the cause of the difference. The difference is due to the fact that the Sun is (a) lower in the sky now than it was in July, and (b) appears for fewer hours in the day. Both these phenomena are due to the Earth's axial tilt.

If the Sun is directly overhead (which can never happen in Wales) on a cloudless, clear day, you will get the maximum possible amount of light & heat. When the Sun reaches a maximum height of ~60 degrees above the horizon, which is what you get in June, then the amount of light and heat is only ~86% of the maximum possible. When the Sun reaches a maximum height of ~15 degrees above the horizon, which is what you get in December, then the amount of light and heat is only ~24% of the maximum possible.

The effect of having Perihelion close to the winter solstice is to slightly moderate the cold of winter in the Northern hemisphere. A similar effect, moderating the heat of summer, occurs at aphelion.

Note that the actual effects of less sun are moderated due to the gulf stream, the winds in the atmosphere, etc. etc.
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.

GeneralRe: So how do I explain that? Pin
GuyThiebaut3-Jan-19 1:48
professionalGuyThiebaut3-Jan-19 1:48 
GeneralRe: So how do I explain that? Pin
Mark_Wallace3-Jan-19 2:08
MemberMark_Wallace3-Jan-19 2:08 
GeneralRe: So how do I explain that? Pin
jschell5-Jan-19 6:48
Memberjschell5-Jan-19 6:48 
JokeRe: So how do I explain that? Pin
dandy725-Jan-19 12:49
Memberdandy725-Jan-19 12:49 
GeneralRe: So how do I explain that? Pin
OriginalGriff5-Jan-19 19:57
mveOriginalGriff5-Jan-19 19:57 
GeneralFirst picture(s) arrive from New Horizons Pin
OriginalGriff3-Jan-19 0:41
mveOriginalGriff3-Jan-19 0:41 
GeneralRe: First picture(s) arrive from New Horizons Pin
Slacker0073-Jan-19 1:57
professionalSlacker0073-Jan-19 1:57 
GeneralRe: First picture(s) arrive from New Horizons Pin
Eric Lynch3-Jan-19 3:49
MemberEric Lynch3-Jan-19 3:49 
GeneralAlternative CCC OTD Pin
Pete O'Hanlon3-Jan-19 0:28
subeditorPete O'Hanlon3-Jan-19 0:28 
GeneralRe: Alternative CCC OTD Pin
OriginalGriff3-Jan-19 0:35
mveOriginalGriff3-Jan-19 0:35 
GeneralRe: Alternative CCC OTD Pin
Pete O'Hanlon3-Jan-19 1:42
subeditorPete O'Hanlon3-Jan-19 1:42 
GeneralRe: Alternative CCC OTD Pin
Michael Martin3-Jan-19 3:00
professionalMichael Martin3-Jan-19 3:00 
GeneralAlternative CCC OTD / Alternative clue Pin
Nagy Vilmos3-Jan-19 3:21
professionalNagy Vilmos3-Jan-19 3:21 
GeneralOi! Walterhevedeich! Where's the CCC? Pin
OriginalGriff2-Jan-19 22:22
mveOriginalGriff2-Jan-19 22:22 
GeneralUrgently Required: Visual Studio Extension to detect presence of kitten(s) on Keyboard Pin
Dom Sinclair2-Jan-19 22:05
MemberDom Sinclair2-Jan-19 22:05 
GeneralRe: Urgently Required: Visual Studio Extension to detect presence of kitten(s) on Keyboard Pin
Mark_Wallace2-Jan-19 22:11
MemberMark_Wallace2-Jan-19 22:11 
GeneralRe: Urgently Required: Visual Studio Extension to detect presence of kitten(s) on Keyboard Pin
Dom Sinclair2-Jan-19 22:34
MemberDom Sinclair2-Jan-19 22:34 

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