Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Lunar Age

  • Please log in to reply
3 replies to this topic

#1 Oscar56

Oscar56

    Apollo

  • *****
  • topic starter
  • Posts: 1,284
  • Joined: 25 Jan 2013
  • Loc: Okanagan, BC

Posted 03 September 2020 - 09:02 AM

There are a number of resources, including Charles Woods Lunar 100, that refer to lunar age in days. But what is Day 1?  Is the full moon Day 15 as one resource indicates?



#2 TOMDEY

TOMDEY

    Cosmos

  • *****
  • Posts: 7,670
  • Joined: 10 Feb 2014
  • Loc: Springwater, NY

Posted 03 September 2020 - 09:43 AM

Estimates are all over the place. Some astronomers say the moon is 4.53 billion years old, other scholars say 6-10 thousand years... but less than a month seems really short! Even Einstein wondered if the moon might just disappear if unobserved... a consequence of quantum reality.   Tom

Attached Thumbnails

  • 08.1 einstein moon quote.jpg

  • flt158 likes this

#3 beggarly

beggarly

    Viking 1

  • -----
  • Posts: 869
  • Joined: 12 Jun 2015
  • Loc: Belgium

Posted 03 September 2020 - 10:12 AM

https://www.ngc7000....oelix/index.htm

 

Geocentric ephemeris of the Moon (Coelix Apex).
Times are given in summer time zone A.

Date        Hour    R. A. (2000.0) Decl. (2000.0) Const. Dist. E.    Age       Magn.  Diam.  Illum. Elong.
yyyy mm dd  hh:mm   geocentric     geocentric              km       days         mV     "      %      °

2020 08 19  04:42   10h 0m 20s     +16° 50,3'     Leo    367383   0d 0h 01m    -8,2   1951   0,1    0,7° E   NM
2020 08 20  04:42   10h 57m 3s     +11° 58,4'     Leo    364784   1d 0h 01m    -8,7   1965   1,7    14,2° E
2020 08 21  04:42   11h 52m 10s    +6° 21,9'      Vir    363594   2d 0h 01m    -9,3   1972   6,0    27,9° E
2020 08 22  04:42   12h 46m 7s     +0° 23,4'      Vir    363800   3d 0h 01m    -9,8   1971   12,8   41,6° E
2020 08 23  04:42   13h 39m 40s    -5° 34,3'      Vir    365246   4d 0h 01m    -10,3  1963   21,6   55,1° E
2020 08 24  04:42   14h 33m 35s    -11° 9,8'      Lib    367685   5d 0h 01m    -10,7  1950   31,8   68,5° E
2020 08 25  04:42   15h 28m 33s    -16° 3,6'      Lib    370827   6d 0h 01m    -11,1  1933   42,8   81,5° E  FQ
2020 08 26  04:42   16h 24m 55s    -19° 58,7'     Oph    374396   7d 0h 01m    -11,3  1915   53,9   94,3° E
2020 08 27  04:42   17h 22m 34s    -22° 41,9'     Oph    378164   8d 0h 01m    -11,6  1896   64,6   106,9° E
2020 08 28  04:42   18h 20m 48s    -24° 4,6'      Sgr    381966   9d 0h 01m    -11,8  1877   74,5   119,2° E
2020 08 29  04:42   19h 18m 37s    -24° 4,3'      Sgr    385698   10d 0h 01m   -12,0  1859   83,0   131,3° E
2020 08 30  04:42   20h 14m 51s    -22° 45,3'     Cap    389299   11d 0h 01m   -12,2  1842   90,0   143,2° E
2020 08 31  04:42   21h 8m 40s     -20° 17,3'     Cap    392731   12d 0h 01m   -12,3  1826   95,2   155,0° E
2020 09 01  04:42   21h 59m 42s    -16° 53,4'     Aqr    395951   13d 0h 01m   -12,4  1811   98,5   166,6° E
2020 09 02  04:42   22h 48m 2s     -12° 47,7'     Aqr    398897   14d 0h 01m   -12,5  1797   99,8   178,1° E  FM
2020 09 03  04:42   23h 34m 5s     -8° 14,0'      Aqr    401473   15d 0h 01m   -12,4  1786   99,1   170,6° W
2020 09 04  04:42   0h 18m 31s     -3° 24,5'      Psc    403552   16d 0h 01m   -12,3  1777   96,6   159,3° W
2020 09 05  04:42   1h 2m 3s       +1° 29,7'      Cet    404980   17d 0h 01m   -12,1  1770   92,4   148,2° W
2020 09 06  04:42   1h 45m 27s     +6° 18,9'      Psc    405595   18d 0h 01m   -12,0  1768   86,6   137,2° W
2020 09 07  04:42   2h 29m 32s     +10° 53,9'     Ari    405242   19d 0h 01m   -11,8  1769   79,5   126,2° W
2020 09 08  04:42   3h 15m 1s      +15° 5,3'      Ari    403801   20d 0h 01m   -11,6  1775   71,4   115,2° W
2020 09 09  04:42   4h 2m 37s      +18° 43,3'     Tau    401207   21d 0h 01m   -11,4  1787   62,3   104,1° W 
2020 09 10  04:42   4h 52m 48s     +21° 36,7'     Tau    397473   22d 0h 01m   -11,2  1804   52,6   92,8° W    LQ
2020 09 11  04:42   5h 45m 48s     +23° 33,6'     Tau    392708   23d 0h 01m   -10,9  1826   42,6   81,3° W
2020 09 12  04:42   6h 41m 24s     +24° 22,0'     Gem    387126   24d 0h 01m   -10,7  1852   32,6   69,5° W
2020 09 13  04:42   7h 38m 56s     +23° 51,9'     Gem    381056   25d 0h 01m   -10,3  1881   23,1   57,3° W
2020 09 14  04:42   8h 37m 22s     +21° 57,9'     Cnc    374920   26d 0h 01m   -9,9   1912   14,5   44,6° W
2020 09 15  04:42   9h 35m 40s     +18° 41,3'     Leo    369210   27d 0h 01m   -9,5   1942   7,5    31,5° W
2020 09 16  04:42   10h 33m 4s     +14° 11,3'     Leo    364425   28d 0h 01m   -8,9   1967   2,6    18,0° W
2020 09 17  04:42   11h 29m 21s    +8° 44,0'      Leo    361011   29d 0h 01m   -8,3   1986   0,3    4,1° W    NM
2020 09 18  04:42   12h 24m 45s    +2° 41,0'      Vir    359275   0d 15h 42m   -8,5   1996   0,9    9,9° E
2020 09 19  04:42   13h 19m 48s    -3° 32,9'      Vir    359339   1d 15h 42m   -9,2   1995   4,4    23,9° E
2020 09 20  04:42   14h 15m 14s    -9° 32,6'      Vir    361115   2d 15h 42m   -9,7   1985   10,6   37,8° E
2020 09 21  04:42   15h 11m 37s    -14° 53,9'     Lib    364334   3d 15h 42m   -10,2  1968   18,9   51,4° E
2020 09 22  04:42   16h 9m 17s     -19° 16,2'     Sco    368614   4d 15h 42m   -10,6  1945   28,7   64,6° E


Edited by beggarly, 03 September 2020 - 10:24 AM.

  • flt158 likes this

#4 Oscar56

Oscar56

    Apollo

  • *****
  • topic starter
  • Posts: 1,284
  • Joined: 25 Jan 2013
  • Loc: Okanagan, BC

Posted 03 September 2020 - 12:41 PM

Thanks Beggarly.  That’s what I was looking for. 




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics