|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
What time of the year is the moon closest to the Earth??
Now that the distance between the earth and the moon has been measured
with great precision. Could anyone tell me what time of the year is the moon closest to the Earth?? Thank you. Don Hamilton |
#2
|
|||
|
|||
What time of the year is the moon closest to the Earth??
Dear dlham:
wrote: Now that the distance between the earth and the moon has been measured with great precision. Could anyone tell me what time of the year is the moon closest to the Earth?? http://www.fourmilab.ch/earthview/moon_ap_per.html QUOTE The combined effects of orbital eccentricity and the Sun's tides result in a substantial difference in the apparent size and brightness of the Moon at perigee and apogee. Extreme values for perigee and apogee distance occur when perigee or apogee passage occurs close to new or full Moon, and long-term extremes are in the months near to Earth's perihelion passage (closest approach to the Sun, when the Sun's tidal effects are strongest) in the first few days of January. END QUOTE David A. Smith |
#3
|
|||
|
|||
What time of the year is the moon closest to the Earth??
dlzc wrote:
Dear dlham: wrote: Now that the distance between the earth and the moon has been measured with great precision. Could anyone tell me what time of the year is the moon closest to the Earth?? http://www.fourmilab.ch/earthview/moon_ap_per.html QUOTE The combined effects of orbital eccentricity and the Sun's tides result in a substantial difference in the apparent size and brightness of the Moon at perigee and apogee. Extreme values for perigee and apogee distance occur when perigee or apogee passage occurs close to new or full Moon, and long-term extremes are in the months near to Earth's perihelion passage (closest approach to the Sun, when the Sun's tidal effects are strongest) in the first few days of January. END QUOTE David A. Smith Thanks Dave http://www.fourmilab.ch/images/peri_apo/ This article states that "the moon is at perigee relative to the earth when earth is at apogee relative to the sun and the moon is at apogee relative to the earth when the earth is at perigee relative to the sun." Can anyone tell me if there is a logical explanation why this "coincidence" occurs?? Why the moon is closest to the earth when the earth is farthest from the sun and visa versa?? Don Hamilton |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
The MOON tonite Weds 11/9 - Closest I have ever seen it ... | KeepYourEyesOnTheSkies | Misc | 0 | November 10th 05 06:52 AM |
Hubble Image: Mars Kicks Up The Dust As It Makes Closest Approach To Earth | [email protected] | News | 0 | November 3rd 05 06:28 PM |
MARS KICKS UP THE DUST AS IT MAKES CLOSEST APPROACH TO EARTH (STScI-PRC05-35-Heritage) | INBOX ASTRONOMY: NEWS ALERT | Astronomy Misc | 0 | November 3rd 05 03:18 PM |
MARS KICKS UP THE DUST AS IT MAKES CLOSEST APPROACH TO EARTH (STScI-PRC05-34-Heritage) | INBOX ASTRONOMY: NEWS ALERT | Amateur Astronomy | 0 | November 3rd 05 03:17 PM |
Rosetta performs ESA's closest-ever Earth fly-by | Jacques van Oene | News | 0 | March 5th 05 01:01 PM |