Join Photoblog!
pixel
« 
pixel
«  
  »
pixel
S M T W T F S
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
 »
pixel

Waxing Crescent

2009.03.31
pixel
.
pixel
A waxing crescent moon–sometimes called a “young moon”–is always seen in the west after sunset. At this moon phase, the Earth, moon and sun are located nearly on a line in space. If they were more precisely on a line, as they are at new moon, we wouldn’t see the moon. The moon would travel across the sky during the day, lost in the sun’s glare. Instead, a waxing crescent moon is seen one day to several days after new moon. It rises one hour to several hours behind the sun and follows the sun across the sky during the day. When the sun sets, and the sky darkens, the moon pops into view in the western sky.

Because the waxing crescent moon is nearly on a line with the Earth and sun, the “day side” is facing mostly away from us. We see only a slender fraction of the day side: a crescent moon. Each evening, because the moon is moving eastward in orbit around Earth, the moon appears farther from the sunset glare. Each evening, as the moon’s orbital motion carries it away from the Earth/sun line, we see more of the moon’s day side. Thus the crescent in the west after sunset appears to wax, or grow fatter each evening.

Note that a crescent moon has nothing to do with Earth’s shadow on the moon. The only time Earth’s shadow can fall on the moon is at full moon, during a lunar eclipse. There IS a shadow on a crescent moon, but it’s the moon’s OWN shadow. Night on the moon happens on the part of the moon submerged in the moon’s own shadow. Likewise, night on Earth happens on the part of Earth submerged in Earth’s own shadow.

You sometimes see a pale glow on the darkened portion (night side) of a crescent moon. This glow is due to light reflected from Earth’s day side. It’s called “earthshine.”

41 Comments
gonia it looks wonderfull on your picture!bravo Tom!
gonia · 2009-03-31: 02:12
busybee36 Your moon shots are really getting good now! And all that luna information too!
busybee36 · 2009-03-31: 02:41
slowpete great post
slowpete · 2009-03-31: 03:21
JumiElla Awesome shot, Tom! Thanks for the introduction to subject.
JumiElla · 2009-03-31: 04:09
koraikilian wow! that's fantastic! now time to post your photos of the other planets too... :)
koraikilian · 2009-03-31: 04:39
agnes65 Fantastic capture Tom!!! And interesting information too :)
agnes65 · 2009-03-31: 04:58
finbarr Stunning shot !!!!! great post !!
finbarr · 2009-03-31: 05:07
jet28 I never knew that - thanks :-) Great shot!
jet28 · 2009-03-31: 05:11
dontblink Cool shot and information!
dontblink · 2009-03-31: 08:23
wfrnk Awesome! :-)
wfrnk · 2009-03-31: 08:49
lookagain That's just beautiful - a lot of interesting information, too!
lookagain · 2009-03-31: 09:41
jennye fantastic shot!!
and thanks for the info!
jennye · 2009-03-31: 10:08
leocheung An informative post with a fantastic picture.
leocheung · 2009-03-31: 10:38
tbranscum Hey, thanks for the lesson. I will never remember all of that, so I hope that there won't be a pop quiz! lol Great photo!
tbranscum · 2009-03-31: 10:56
DancingDolphin Good work... someday I will successfully capture the moon!
DancingDolphin · 2009-03-31: 12:06
onlymehdi amazing
onlymehdi · 2009-03-31: 12:20
LAZYWASP Simply amazing.....
LAZYWASP · 2009-03-31: 13:11
Wodzimierz It's fantastic! Amazing moon..
Wodzimierz · 2009-03-31: 13:50
onlyricky hmm!
Thanks for the information :)
Wonderful moon ;P
onlyricky · 2009-03-31: 14:03
rontwo Just a word: WOW!
rontwo · 2009-03-31: 17:43
dreadwear Stunning photo!
dreadwear · 2009-03-31: 18:47
Unchained Wow, a lesson of astronomy.. and a picture like from NASA. Well done!
Unchained · 2009-03-31: 20:03
miclaud Amazing!!! I like it!
miclaud · 2009-03-31: 20:26
NellyBly Awesome is the word from me!
NellyBly · 2009-03-31: 22:29
????? EXCELLENT!!!!!
????? · 2009-04-01: 00:53
camilleauteuil oops - the texte is a bit too long for me ... :-(
but the crescent is beautiful !
camilleauteuil · 2009-04-01: 03:25
Nellinka Just perfect.. =)
Nellinka · 2009-04-01: 10:14
sachiko I seem to be in the quiet outer space when I enlarge a photograph.
sachiko · 2009-04-01: 10:19
Nesta amazing shot! I never get such good pictures of the moon...
and interesting story too ^^
Nesta · 2009-04-01: 11:27
Arie Lovely moon shot
Arie · 2009-04-01: 11:53
kretz added to my fav!
kretz · 2009-04-01: 12:50
brad and Deedo Great shot and info, Tom!
brad and Deedo · 2009-04-01: 17:38
????? Great shot!
????? · 2009-04-01: 18:39
luvnug interesting! that's an amazing photo! :)
luvnug · 2009-04-01: 22:09
Flowerstone Stunning capture Tom!!! I like it!
Flowerstone · 2009-04-02: 05:27
lmrus Great post!
lmrus · 2009-04-02: 08:39
skakanka Awesome shot!!!
skakanka · 2009-04-02: 13:34
TIM927 Brilliant!
TIM927 · 2009-04-06: 12:29
Sonic7 Wow .... what an amazing shot.
Sonic7 · 2009-04-06: 17:45
Hollydead your moon photos are always amazing :)
Hollydead · 2009-04-12: 15:20
????? excellent!
????? · 2009-04-28: 04:39
Bold Text
Italic Text
UnderLine Text
URL Link
pixel

Name
URL
pixel


Views: 1049
Category: The Sky!
pixel
Tagged: moon
« 
pixel
 »
pixel