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	<title>Comments on: Does this perihelion make my Sun look fat?</title>
	<atom:link href="http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/feed/" rel="self" type="application/rss+xml" />
	<link>http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/</link>
	<description>I am an astronomer, writer, and skeptic. I likes reality the way it is, and I aims to keep it that way. My real name is Phil Plait, and I run the Bad Astronomy blog.</description>
	<lastBuildDate>Mon, 22 Mar 2010 06:14:48 -0500</lastBuildDate>
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		<title>By: ardentmoth</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/comment-page-2/#comment-161239</link>
		<dc:creator>ardentmoth</dc:creator>
		<pubDate>Mon, 09 Mar 2009 14:40:45 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/#comment-161239</guid>
		<description>Apo-calyptic (away from calypso?)
peri-er (near expensive water?)</description>
		<content:encoded><![CDATA[<p>Apo-calyptic (away from calypso?)<br />
peri-er (near expensive water?)</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Weather sizzles on a planet that kisses its star &#124; Bad Astronomy &#124; Discover Magazine</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/comment-page-2/#comment-152263</link>
		<dc:creator>Weather sizzles on a planet that kisses its star &#124; Bad Astronomy &#124; Discover Magazine</dc:creator>
		<pubDate>Wed, 28 Jan 2009 18:00:57 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/#comment-152263</guid>
		<description>[...] star 190 light years from Earth. The planet&#8217;s orbit is incredibly elliptical, with a whopping eccentricity value of 0.927 &#8212; meaning the orbit is elongated like a rubber band being fought over by jealous [...]</description>
		<content:encoded><![CDATA[<p>[...] star 190 light years from Earth. The planet&#8217;s orbit is incredibly elliptical, with a whopping eccentricity value of 0.927 &#8212; meaning the orbit is elongated like a rubber band being fought over by jealous [...]</p>
]]></content:encoded>
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	<item>
		<title>By: joe nahhas</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/comment-page-2/#comment-152190</link>
		<dc:creator>joe nahhas</dc:creator>
		<pubDate>Wed, 28 Jan 2009 12:51:27 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/#comment-152190</guid>
		<description>Einstein&#039;s Nemesis: DI Her Eclipsing Binary Stars Solution
The problem that the 100,000 PHD Einsteinists could not solve  

This is the solution to the &quot;Quarter of a century&quot; Smithsonian-NASA Posted motion puzzle that Einstein and the 100,000 space-time physicists including 109 years of Nobel prize winner physics and physicists and 400 years of astronomy and Astrophysicists could not solve and solved here and dedicated to Drs Edward Guinan and Frank Maloney      
Of Villanova University Pennsylvania who posted this motion puzzle and started the search collections of stars with motion that can not be explained by any published physics   
For 350 years Physicists Astrophysicists and Mathematicians and all others including Newton and Kepler themselves missed the time-dependent Newton&#039;s equation and time dependent Kepler&#039;s equation that accounts for Quantum - relativistic effects and it explains these effects as visual effects. Here it is  

Universal- Mechanics

All there is in the Universe is objects of mass m moving in space (x, y, z) at a location 
r = r (x, y, z). The state of any object in the Universe can be expressed as the product 

S = m r; State = mass x location

P = d S/d t = m (d r/dt) + (dm/dt) r = Total moment 

  = change of location + change of mass

  = m v + m&#039; r; v = velocity = d r/d t; m&#039; = mass change rate

F = d P/d t = d²S/dt² = Force = m (d²r/dt²) +2(dm/d t) (d r/d t) + (d²m/dt²) r

   = m γ + 2m&#039;v +m&quot;r; γ = acceleration; m&#039;&#039; = mass acceleration rate

In polar coordinates system

r = r r(1) ;v = r&#039; r(1)  + r θ&#039; θ(1) ; γ = (r&quot; - rθ&#039;²)r(1) + (2r&#039;θ&#039; + rθ&quot;)θ(1)

F = m[(r&quot;-rθ&#039;²)r(1) + (2r&#039;θ&#039; + rθ&quot;)θ(1)] + 2m&#039;[r&#039;r(1) + rθ&#039;θ(1)] + (m&quot;r) r(1)
  
F = [d²(m r)/dt² - (m r)θ&#039;²]r(1) + (1/mr)[d(m²r²θ&#039;)/d t]θ(1) = [-GmM/r²]r(1)

d² (m r)/dt² - (m r) θ&#039;² = -GmM/r²; d (m²r²θ&#039;)/d t = 0

Let m =constant: M=constant

d²r/dt² -  r θ&#039;²=-GM/r²  ------ I

 d(r²θ&#039;)/d t = 0   -----------------II

r²θ&#039;=h = constant -------------- II     
                                                 r = 1/u; r&#039; = -u&#039;/u² = - r²u&#039; = - r²θ&#039;(d u/d θ) = -h (d u/d θ)                                 
d (r²θ&#039;)/d t = 2rr&#039;θ&#039; + r²θ&quot; = 0        r&quot; = - h d/d t (du/d θ) = - h θ&#039;(d²u/d θ²) = - (h²/r²)(d²u/dθ²)
                                                                  [- (h²/r²) (d²u/dθ²)] - r [(h/r²)²] = -GM/r²              
2(r&#039;/r) = - (θ&quot;/θ&#039;) = 2[λ + ỉ ω (t)]                              - h²u² (d²u/dθ²) - h²u³ = -GMu²
                                                                                                d²u/dθ² + u = GM/h²             
 r(θ, t) = r (θ, 0) Exp [λ + ỉ ω (t)]    u(θ,0) = GM/h² + Acosθ; r (θ, 0) = 1/(GM/h² + Acosθ)        
                                                         r ( θ, 0) = h²/GM/[1 + (Ah²/Gm)cosθ]      
r(θ,0) = a(1-ε²)/(1+εcosθ)               ; h²/GM = a(1-ε²); ε = Ah²/GM                

 r(0,t)= Exp[λ(r) + ỉ ω (r)]t; Exp = Exponential

r = r(θ , t)=r(θ,0)r(0,t)=[a(1-ε²)/(1+εcosθ)]{Exp[λ(r) + ì ω(r)]t} Nahhas&#039; Solution

If λ(r) ≈ 0; then:    

r (θ, t) = [(1-ε²)/(1+εcosθ)]{Exp[ỉ ω(r)t]

θ&#039;(r,  t) = θ&#039;[r(θ,0), 0]  Exp{-2ỉ[ω(r)t]} 

h = 2π a b/T; b=a√ (1-ε²); a = mean distance value; ε = eccentricity
h = 2πa²√ (1-ε²); r (0, 0) = a (1-ε)

θ&#039; (0,0) = h/r²(0,0) =  2π[√(1-ε²)]/T(1-ε)²   
θ&#039; (0,t) = θ&#039;(0,0)Exp(-2ỉwt)={2π[√(1-ε²)]/T(1-ε)²} Exp (-2iwt)
 
θ&#039;(0,t) = θ&#039;(0,0) [cosine 2(wt) - ỉ sine 2(wt)] = θ&#039;(0,0) [1- 2sine² (wt) - ỉ sin 2(wt)] 
θ&#039;(0,t) = θ&#039;(0,t)(x) + θ&#039;(0,t)(y); θ&#039;(0,t)(x) = θ&#039;(0,0)[ 1- 2sine² (wt)]  
θ&#039;(0,t)(x) – θ&#039;(0,0) = - 2θ&#039;(0,0)sine²(wt) = - 2θ&#039;(0,0)(v/c)²  v/c=sine wt; c=light speed

Δ θ&#039; = [θ&#039;(0, t) - θ&#039;(0, 0)] = -4π {[√ (1-ε) ²]/T (1-ε) ²} (v/c) ²} radians/second
{(180/π=degrees) x (36526=century) 

Δ θ&#039; = [-720x36526/ T (days)] {[√ (1-ε) ²]/ (1-ε) ²}(v/c) = 1.04°/century

This is the T-Rex equation that is going to demolished Einstein&#039;s space-jail of time
  
The circumference of an ellipse: 2πa (1 - ε²/4 + 3/16(ε²)²---) ≈ 2πa (1-ε²/4); R =a (1-ε²/4)
 v (m) = √ [GM²/ (m + M) a (1-ε²/4)] ≈ √ [GM/a (1-ε²/4)]; m&lt;&lt;M; Solar system    

 v = v (center of mass); v is the sum of orbital/rotational velocities = v(cm) for DI Her
Let m = mass of primary; M = mass of secondary

v (m) = primary speed; v(M) = secondary speed = √[Gm²/(m+M)a(1-ε²/4)]
v (cm) = [m v(m) + M v(M)]/(m + M)   All rights reserved. joenahhas1958@yahoo.com</description>
		<content:encoded><![CDATA[<p>Einstein&#8217;s Nemesis: DI Her Eclipsing Binary Stars Solution<br />
The problem that the 100,000 PHD Einsteinists could not solve  </p>
<p>This is the solution to the &#8220;Quarter of a century&#8221; Smithsonian-NASA Posted motion puzzle that Einstein and the 100,000 space-time physicists including 109 years of Nobel prize winner physics and physicists and 400 years of astronomy and Astrophysicists could not solve and solved here and dedicated to Drs Edward Guinan and Frank Maloney<br />
Of Villanova University Pennsylvania who posted this motion puzzle and started the search collections of stars with motion that can not be explained by any published physics<br />
For 350 years Physicists Astrophysicists and Mathematicians and all others including Newton and Kepler themselves missed the time-dependent Newton&#8217;s equation and time dependent Kepler&#8217;s equation that accounts for Quantum &#8211; relativistic effects and it explains these effects as visual effects. Here it is  </p>
<p>Universal- Mechanics</p>
<p>All there is in the Universe is objects of mass m moving in space (x, y, z) at a location<br />
r = r (x, y, z). The state of any object in the Universe can be expressed as the product </p>
<p>S = m r; State = mass x location</p>
<p>P = d S/d t = m (d r/dt) + (dm/dt) r = Total moment </p>
<p>  = change of location + change of mass</p>
<p>  = m v + m&#8217; r; v = velocity = d r/d t; m&#8217; = mass change rate</p>
<p>F = d P/d t = d²S/dt² = Force = m (d²r/dt²) +2(dm/d t) (d r/d t) + (d²m/dt²) r</p>
<p>   = m γ + 2m&#8217;v +m&#8221;r; γ = acceleration; m&#8221; = mass acceleration rate</p>
<p>In polar coordinates system</p>
<p>r = r r(1) ;v = r&#8217; r(1)  + r θ&#8217; θ(1) ; γ = (r&#8221; &#8211; rθ&#8217;²)r(1) + (2r&#8217;θ&#8217; + rθ&#8221;)θ(1)</p>
<p>F = m[(r"-rθ'²)r(1) + (2r'θ' + rθ")θ(1)] + 2m&#8217;[r'r(1) + rθ'θ(1)] + (m&#8221;r) r(1)</p>
<p>F = [d²(m r)/dt² - (m r)θ'²]r(1) + (1/mr)[d(m²r²θ')/d t]θ(1) = [-GmM/r²]r(1)</p>
<p>d² (m r)/dt² &#8211; (m r) θ&#8217;² = -GmM/r²; d (m²r²θ&#8217;)/d t = 0</p>
<p>Let m =constant: M=constant</p>
<p>d²r/dt² &#8211;  r θ&#8217;²=-GM/r²  &#8212;&#8212; I</p>
<p> d(r²θ&#8217;)/d t = 0   &#8212;&#8212;&#8212;&#8212;&#8212;&#8211;II</p>
<p>r²θ&#8217;=h = constant &#8212;&#8212;&#8212;&#8212;&#8211; II<br />
                                                 r = 1/u; r&#8217; = -u&#8217;/u² = &#8211; r²u&#8217; = &#8211; r²θ&#8217;(d u/d θ) = -h (d u/d θ)<br />
d (r²θ&#8217;)/d t = 2rr&#8217;θ&#8217; + r²θ&#8221; = 0        r&#8221; = &#8211; h d/d t (du/d θ) = &#8211; h θ&#8217;(d²u/d θ²) = &#8211; (h²/r²)(d²u/dθ²)<br />
                                                                  [- (h²/r²) (d²u/dθ²)] &#8211; r [(h/r²)²] = -GM/r²<br />
2(r&#8217;/r) = &#8211; (θ&#8221;/θ&#8217;) = 2[λ + ỉ ω (t)]                              &#8211; h²u² (d²u/dθ²) &#8211; h²u³ = -GMu²<br />
                                                                                                d²u/dθ² + u = GM/h²<br />
 r(θ, t) = r (θ, 0) Exp [λ + ỉ ω (t)]    u(θ,0) = GM/h² + Acosθ; r (θ, 0) = 1/(GM/h² + Acosθ)<br />
                                                         r ( θ, 0) = h²/GM/[1 + (Ah²/Gm)cosθ]<br />
r(θ,0) = a(1-ε²)/(1+εcosθ)               ; h²/GM = a(1-ε²); ε = Ah²/GM                </p>
<p> r(0,t)= Exp[λ(r) + ỉ ω (r)]t; Exp = Exponential</p>
<p>r = r(θ , t)=r(θ,0)r(0,t)=[a(1-ε²)/(1+εcosθ)]{Exp[λ(r) + ì ω(r)]t} Nahhas&#8217; Solution</p>
<p>If λ(r) ≈ 0; then:    </p>
<p>r (θ, t) = [(1-ε²)/(1+εcosθ)]{Exp[ỉ ω(r)t]</p>
<p>θ&#8217;(r,  t) = θ&#8217;[r(θ,0), 0]  Exp{-2ỉ[ω(r)t]} </p>
<p>h = 2π a b/T; b=a√ (1-ε²); a = mean distance value; ε = eccentricity<br />
h = 2πa²√ (1-ε²); r (0, 0) = a (1-ε)</p>
<p>θ&#8217; (0,0) = h/r²(0,0) =  2π[√(1-ε²)]/T(1-ε)²<br />
θ&#8217; (0,t) = θ&#8217;(0,0)Exp(-2ỉwt)={2π[√(1-ε²)]/T(1-ε)²} Exp (-2iwt)</p>
<p>θ&#8217;(0,t) = θ&#8217;(0,0) [cosine 2(wt) - ỉ sine 2(wt)] = θ&#8217;(0,0) [1- 2sine² (wt) - ỉ sin 2(wt)]<br />
θ&#8217;(0,t) = θ&#8217;(0,t)(x) + θ&#8217;(0,t)(y); θ&#8217;(0,t)(x) = θ&#8217;(0,0)[ 1- 2sine² (wt)]<br />
θ&#8217;(0,t)(x) – θ&#8217;(0,0) = &#8211; 2θ&#8217;(0,0)sine²(wt) = &#8211; 2θ&#8217;(0,0)(v/c)²  v/c=sine wt; c=light speed</p>
<p>Δ θ&#8217; = [θ'(0, t) - θ'(0, 0)] = -4π {[√ (1-ε) ²]/T (1-ε) ²} (v/c) ²} radians/second<br />
{(180/π=degrees) x (36526=century) </p>
<p>Δ θ&#8217; = [-720x36526/ T (days)] {[√ (1-ε) ²]/ (1-ε) ²}(v/c) = 1.04°/century</p>
<p>This is the T-Rex equation that is going to demolished Einstein&#8217;s space-jail of time</p>
<p>The circumference of an ellipse: 2πa (1 &#8211; ε²/4 + 3/16(ε²)²&#8212;) ≈ 2πa (1-ε²/4); R =a (1-ε²/4)<br />
 v (m) = √ [GM²/ (m + M) a (1-ε²/4)] ≈ √ [GM/a (1-ε²/4)]; m< <M; Solar system    </p>
<p> v = v (center of mass); v is the sum of orbital/rotational velocities = v(cm) for DI Her<br />
Let m = mass of primary; M = mass of secondary</p>
<p>v (m) = primary speed; v(M) = secondary speed = √[Gm²/(m+M)a(1-ε²/4)]<br />
v (cm) = [m v(m) + M v(M)]/(m + M)   All rights reserved. <a href="mailto:joenahhas1958@yahoo.com">joenahhas1958@yahoo.com</p>
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		<title>By: joe nahhas</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/comment-page-2/#comment-151441</link>
		<dc:creator>joe nahhas</dc:creator>
		<pubDate>Mon, 26 Jan 2009 13:50:24 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/#comment-151441</guid>
		<description>Kepler (demolish) Vs Einstein&#039;s 

Areal velocity is constant: r² θ&#039; =h         Kepler&#039;s Law
 h = 2π a b/T; b=a√ (1-ε²); a = mean distance value; ε = eccentricity
r² θ&#039;= h = S² w&#039;
Replace r with S = r exp (ỉ wt); h = [r² Exp (2iwt)] w&#039;
w&#039; = (h/r²) exp [-2(i wt)] 
w&#039;= (h/r²) [cosine 2(wt) - ỉ sine 2(wt)] = (h/r²) [1- 2sine² (wt) - ỉ sin 2(wt)] 
w&#039; =  w&#039;(x) + ỉ w&#039;(y) ;  w&#039;(x) = (h/r²) [ 1- 2sine² (wt)]  
 w&#039;(x) – (h/r²) = - 2(h/r²)sine²(wt) = - 2(h/r²)(v/c)²  v/c=sine wt
(h/ r²)(Perihelion/Periastron)= [2πa.a√ (1-ε²)]/Ta² (1-ε) ²= [2π√ (1-ε²)]/T (1-ε) ²

 Δ w&#039; = (d w/d t – h/r²] = -4π {[√ (1-ε²)]/T (1-ε) ²} (v/c) ² radian per second
Δ w&#039; = (- 4π /T) {[√ (1-ε²)]/ (1-ε) ²} (v/c) ² radians 
Δ w&#039; = (-720/T) {[√ (1-ε²)]/ (1-ε) ²} (v/c) ² degrees; Multiplication by 180/π 
Δ w&#039; = (-720x36526/T) {[√ (1-ε²)]/(1-ε)²} (v/c)² degrees/100 years  
Δ w” = (-720x3600/T) {[√ (1-ε²)]/ (1-ε) ²} (v/c) ² seconds of arc by 3600

Δ w&quot; = (-720x36526x3600/T) {[√ (1-ε²]/(1-ε)²} (v/c)² seconds of arc per century
This Kepler&#039;s Equation solves all the problems Einstein and all physicists could not solve

The circumference of an ellipse: 2πa (1 - ε²/4 + 3/16(ε²)²- --.) ≈ 2πa (1-ε²/4); R =a (1-ε²/4) v=√ [G m M / (m + M) a (1-ε²/4)] ≈ √ [GM/a (1-ε²/4)]; m&lt;&lt;M; Solar system    
 Advance of Perihelion of mercury.

G=6.673x10^-11; M=2x10^30kg; m=.32x10^24kg
 ε = 0.206; T=88days; c = 299792.458 km/sec; a = 58.2km/sec
Calculations yields:
 v =48.14km/sec; [√ (1- ε²)] (1-ε) ² = 1.552 
Δ w”= (-720x36526x3600/88) x (1.552) (48.14/299792)²=43.0”/century

Conclusions: The 43&quot; seconds of arc of advance of perihelion of Planet Mercury (General relativity) is given by Kepler&#039;s equation better than all of Published papers of Einstein. Kepler&#039;s Equation can solve Einstein&#039;s nemesis DI Her Binary stars motion and all the other dozens of stars motions posted for past 40 years on NASA website SAO/NASA as unsolved by any physics 

Anyone dare to prove me wrong?</description>
		<content:encoded><![CDATA[<p>Kepler (demolish) Vs Einstein&#8217;s </p>
<p>Areal velocity is constant: r² θ&#8217; =h         Kepler&#8217;s Law<br />
 h = 2π a b/T; b=a√ (1-ε²); a = mean distance value; ε = eccentricity<br />
r² θ&#8217;= h = S² w&#8217;<br />
Replace r with S = r exp (ỉ wt); h = [r² Exp (2iwt)] w&#8217;<br />
w&#8217; = (h/r²) exp [-2(i wt)]<br />
w&#8217;= (h/r²) [cosine 2(wt) - ỉ sine 2(wt)] = (h/r²) [1- 2sine² (wt) - ỉ sin 2(wt)]<br />
w&#8217; =  w&#8217;(x) + ỉ w&#8217;(y) ;  w&#8217;(x) = (h/r²) [ 1- 2sine² (wt)]<br />
 w&#8217;(x) – (h/r²) = &#8211; 2(h/r²)sine²(wt) = &#8211; 2(h/r²)(v/c)²  v/c=sine wt<br />
(h/ r²)(Perihelion/Periastron)= [2πa.a√ (1-ε²)]/Ta² (1-ε) ²= [2π√ (1-ε²)]/T (1-ε) ²</p>
<p> Δ w&#8217; = (d w/d t – h/r²] = -4π {[√ (1-ε²)]/T (1-ε) ²} (v/c) ² radian per second<br />
Δ w&#8217; = (- 4π /T) {[√ (1-ε²)]/ (1-ε) ²} (v/c) ² radians<br />
Δ w&#8217; = (-720/T) {[√ (1-ε²)]/ (1-ε) ²} (v/c) ² degrees; Multiplication by 180/π<br />
Δ w&#8217; = (-720&#215;36526/T) {[√ (1-ε²)]/(1-ε)²} (v/c)² degrees/100 years<br />
Δ w” = (-720&#215;3600/T) {[√ (1-ε²)]/ (1-ε) ²} (v/c) ² seconds of arc by 3600</p>
<p>Δ w&#8221; = (-720&#215;36526x3600/T) {[√ (1-ε²]/(1-ε)²} (v/c)² seconds of arc per century<br />
This Kepler&#8217;s Equation solves all the problems Einstein and all physicists could not solve</p>
<p>The circumference of an ellipse: 2πa (1 &#8211; ε²/4 + 3/16(ε²)²- &#8211;.) ≈ 2πa (1-ε²/4); R =a (1-ε²/4) v=√ [G m M / (m + M) a (1-ε²/4)] ≈ √ [GM/a (1-ε²/4)]; m<<M; Solar system<br />
 Advance of Perihelion of mercury.</p>
<p>G=6.673&#215;10^-11; M=2&#215;10^30kg; m=.32&#215;10^24kg<br />
 ε = 0.206; T=88days; c = 299792.458 km/sec; a = 58.2km/sec<br />
Calculations yields:<br />
 v =48.14km/sec; [√ (1- ε²)] (1-ε) ² = 1.552<br />
Δ w”= (-720&#215;36526x3600/88) x (1.552) (48.14/299792)²=43.0”/century</p>
<p>Conclusions: The 43&#8243; seconds of arc of advance of perihelion of Planet Mercury (General relativity) is given by Kepler&#8217;s equation better than all of Published papers of Einstein. Kepler&#8217;s Equation can solve Einstein&#8217;s nemesis DI Her Binary stars motion and all the other dozens of stars motions posted for past 40 years on NASA website SAO/NASA as unsolved by any physics </p>
<p>Anyone dare to prove me wrong?</p>
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	</item>
	<item>
		<title>By: Solar eclipse. Kinda. &#124; Bad Astronomy &#124; Discover Magazine</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/comment-page-2/#comment-151295</link>
		<dc:creator>Solar eclipse. Kinda. &#124; Bad Astronomy &#124; Discover Magazine</dc:creator>
		<pubDate>Sun, 25 Jan 2009 21:32:49 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/#comment-151295</guid>
		<description>[...] away, so it doesn&#8217;t cover the Sun completely. In this case, the eclipse is happening near perihelion, when the Earth is closest to the Sun, so we&#8217;re maximizing the effect: the Moon looks small [...]</description>
		<content:encoded><![CDATA[<p>[...] away, so it doesn&#8217;t cover the Sun completely. In this case, the eclipse is happening near perihelion, when the Earth is closest to the Sun, so we&#8217;re maximizing the effect: the Moon looks small [...]</p>
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	<item>
		<title>By: Back to Work&#8230;and Happy Belated Perihelion &#171; Science Chicago - LIFE&#8217;S A LAB!</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/comment-page-1/#comment-145949</link>
		<dc:creator>Back to Work&#8230;and Happy Belated Perihelion &#171; Science Chicago - LIFE&#8217;S A LAB!</dc:creator>
		<pubDate>Tue, 06 Jan 2009 21:42:07 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/#comment-145949</guid>
		<description>[...] I totally forgot that yesterday was the Perihelion, which is the day of the year when the Earth is closest to the Sun (peri meaning [...]</description>
		<content:encoded><![CDATA[<p>[...] I totally forgot that yesterday was the Perihelion, which is the day of the year when the Earth is closest to the Sun (peri meaning [...]</p>
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	<item>
		<title>By: DaveS</title>
		<link>http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/comment-page-1/#comment-145871</link>
		<dc:creator>DaveS</dc:creator>
		<pubDate>Tue, 06 Jan 2009 18:25:18 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/badastronomy/2009/01/04/does-this-perihelion-make-my-sun-look-fat/#comment-145871</guid>
		<description>Guys, during the Apollo missions, I seem to remember the NASA talking heads referring to &quot;perilune&quot;.</description>
		<content:encoded><![CDATA[<p>Guys, during the Apollo missions, I seem to remember the NASA talking heads referring to &#8220;perilune&#8221;.</p>
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