A tad off topic....?
To all, Hmmm, hope I don't incur too much wrath over another moon question but I heard the other day that Feb 1865 is the only month in recorded history not to have a full moon (and hence be the only month in which a moon dial could not be used on its day of greatest accuracy - there; I got back on topic!!). It seems odd - is it to be believed do you think? Patrick
Re: A tad off topic....?
> Jim Cobb wroteThe following are the years from 1800 to 2100 in which February has no full moon. This is taken from Meeus's book. 180919152018 184719342037 186619612067 188519992094< Wonderful - that sounds like a most interesting book. Your reply got me interested to see what else I could find and I found the Moon Calendar web page (it's intended for schools and isn't desperately accurate !) but it seems to work well enough to demonstrate the correctness of the above - well, the ones I have checked anyway: Whilst it's good to use to check dates it's a bit tedious to use to find the dates in the first place though. http://www.ameritech.net/users/paulcarlisle/MoonCalendar.html Thanks again and to all who have commented Patrick
Re: A tad off topic....?
This can't be true since February 1999 also didn't have a full moon. In addition since both the calander and the lunar cycle are periodic there must be repetition at some point. Previous Message: <>
Re: A tad off topic....?
Jean Meeus's book "Mathematical Astronomy Morsels" http://www.amazon.com/exec/obidos/ASIN/0943396514/o/qid=921164695/sr=2-1/002-5697572-2293064 lists months over a period of about two hundred years which are missing a lunar phase. I believe it lists 1961 as the previous year (before this one) without a February Full moon; it lists several others. I don't have this book handy right now. I'll send more info later... If you have the book, it's in the chapter titled something like "months with five lunar phases." I believe it's the last chapter of the first section of the book. Jim --- -- | Jim Cobb | 540 Arapeen Dr. #100 | [EMAIL PROTECTED] | | Parametric| Salt Lake City, UT | (801)-588-4632 | | Technology Corp. | 84108-1202 | Fax (801)-588-4650 | --- -- Always go to other people's funerals, otherwise they won't come to yours. -- Yogi Berra > This can't be true since February 1999 also didn't have a full moon. In > addition since both the calander and the lunar cycle are periodic there must > be repetition at some point. > > Previous Message: > < > Hmmm, hope I don't incur too much wrath over another moon question but I > heard the other day that Feb 1865 is the only month in recorded history not > to have a full moon (and hence be the only month in which a moon dial could > not be used on its day of greatest accuracy - there; I got back on > topic!!). > > It seems odd - is it to be believed do you think?>>
Re: A tad off topic....?
The following are the years from 1800 to 2100 in which February has no full moon. This is taken from Meeus's book. 180919152018 184719342037 186619612067 188519992094 Jim --- -- | Jim Cobb | 540 Arapeen Dr. #100 | [EMAIL PROTECTED] | | Parametric| Salt Lake City, UT | (801)-588-4632 | | Technology Corp. | 84108-1202 | Fax (801)-588-4650 | --- -- All history is but a romance, unless it is studied as an example. -- George Croly > Jean Meeus's book "Mathematical Astronomy Morsels" > > http://www.amazon.com/exec/obidos/ASIN/0943396514/o/qid=921164695/sr=2-1/002- 5697572-2293064 > > lists months over a period of about two hundred years which are > missing a lunar phase. I believe it lists 1961 as the previous year > (before this one) without a February Full moon; it lists several > others. I don't have this book handy right now. I'll send more info > later... If you have the book, it's in the chapter titled something > like "months with five lunar phases." I believe it's the last chapter > of the first section of the book. > > Jim
Fwd: Re: A tad off topic....?
Not quite true. Last month Australia had a full moon at about 2am on Feb 1. In Europe it was still January. >From: Jim_Cobb <[EMAIL PROTECTED]> >Reply-To: Jim Cobb <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >CC: sundial@rrz.uni-koeln.de >Subject: Re: A tad off topic? >Date: Fri, 12 Mar 1999 08:44:47 -0700 > >The following are the years from 1800 to 2100 in which February has no >full moon. This is taken from Meeus's book. > > 180919152018 > 184719342037 > 186619612067 > 188519992094 > >Jim > --- -- >| Jim Cobb | 540 Arapeen Dr. #100 | [EMAIL PROTECTED] | >| Parametric| Salt Lake City, UT | (801)-588-4632 | >| Technology Corp. | 84108-1202 | Fax (801)-588-4650 | > --- -- >All history is but a romance, unless it is studied as an example. > -- George Croly > >> Jean Meeus's book "Mathematical Astronomy Morsels" >> >> http://www.amazon.com/exec/obidos/ASIN/0943396514/o/qid=921164695/sr=2-1/002- >5697572-2293064 >> >> lists months over a period of about two hundred years which are >> missing a lunar phase. I believe it lists 1961 as the previous year >> (before this one) without a February Full moon; it lists several >> others. I don't have this book handy right now. I'll send more info >> later... If you have the book, it's in the chapter titled something >> like "months with five lunar phases." I believe it's the last chapter >> of the first section of the book. >> >> Jim > Get Your Private, Free Email at http://www.hotmail.com
Re: Fwd: Re: A tad off topic....?
"Mark Wrigley" <[EMAIL PROTECTED]> wrote: > Not quite true. > Last month Australia had a full moon at about 2am on Feb 1. > In Europe it was still January. Quite so. Meeus (careful calculator that he is) explicitly notes his use of UT (and the dependence of such a calculation on the time zone). The fault is mine for not propagating that bit of information. Jim --- -- | Jim Cobb | 540 Arapeen Dr. #100 | [EMAIL PROTECTED] | | Parametric| Salt Lake City, UT | (801)-588-4632 | | Technology Corp. | 84108-1202 | Fax (801)-588-4650 | --- -- "Your weapons are no match for ours! People of Mars, surrender!" "Um, this isn't Mars. This is Earth." "Earth? Earth-with-nuclear- weapons Earth?" "Yes." [long pause] "Friend!" -- James Nicoll
