[8] Variation from Astronomical New Moon to Full Moon; Variation from New Crescent to Full Moon

Someone may imagine that since the day immediately following the moment of the full moon could be known by the method described above, perhaps the day of the conjunction could be known from the day of the full moon.

This conjecture is now discussed.

On the bottom of page 6 of Parker 1950, he wrote, “The necessary time for full moon varies from 13.73 to 15.80 days after conjunction.” This is a swing of 2.07 days, which is about 49 hours 41 minutes. This shows that the conjunction (i. e., astronomical new moon) does not have to be exactly opposite the full moon.

By examining a few cases near these extremes in the 20th century we may compare the day of the lunar month based upon whether one considers the first day of the lunar month to be the day on which the conjunction occurs or the day on which the new crescent is seen. Let us consider three cases in which the computation for visibility of the new crescent is made from
Jerusalem, and the boundary for a new day is computed as sunset.

For those who wish to check with other software, I am considering the latitude of Jerusalem to be 31.80 N and the longitude of Jerusalem to be 35.22 E, which are the coordinates I have seen for an official weather station of Jerusalem.

The abbreviation UT stands for “universal time”, and is intended to refer to the time zone based upon Greenwich, England.

Case 1: Conjunction on July 7, 1967 at 17:01 UT and sunset 16:48 UT The full moon occurred on July 21, 1967 at 14:39 UT. The time from conjunction to full moon is 13.90 days (a little over the minimum of 13.73).

Note that the conjunction occurred shortly after sunset, close to the beginning of a new day. For a month that is considered to begin on the day of the conjunction, the full moon occurs on the 14th day of the month in this example. On the evening that ends July 9, 1967 the new crescent will be theoretically visible. For a month that is considered to begin on the day beginning with
the new crescent, the full moon occurs on the 12th day of the month.

Case 2: Conjunction on December 12, 1966 at 3:15 UT and sunset 14:35 UT The full moon occurred on December 27, 1966 at 17:45 UT. The time from conjunction to full moon is 15.60 days (a little under the maximum of 15.80 days). For a month that is considered to begin on the day of the conjunction, the full moon occurs on the 15th day of the month in this example.

On the evening that ends December 13, 1966 the new crescent will be theoretically visible. For a month that is considered to begin on the day beginning with the new crescent, the full moon occurs on the 13th day of the month.

Case 3: Conjunction on September 26, 1973 at 13:54 UT and sunset 15:32 UT The full moon occurred on October 12, 1973 at 3:11 UT. Note that the conjunction occurred shortly before sunset, close to the end of a new day.

The time from conjunction to full moon is 15.55 days (a little under the maximum of 15.80 days). For a month that is considered to begin on the day of the conjunction, the full moon occurs on the 17th day of the month in this example!!

On the evening that ends September 28, 1973 the new crescent will be theoretically visible. For a month that is considered to begin on the day beginning with the new crescent, the full moon occurs on the 14th day of the month.

Conclusion from these Examples

In these examples, for a conjunction month, the full moon occurs from the 14th to the 17th day of the month. The 17th is very rare.
In these examples, for a new crescent month, the full moon occurs from the 12th to the 14th day of the month. In the most extreme case for a new crescent month, the full moon can occur on the 16th day of the month, but this is very rare. Typically the full moon occurs on the 13th, 14th, and 15th for the new crescent month.


6 comments

1.  sdtrysdt15 (17 May, 2012 - 20:58) says:

linjianxuan20120518 Trademark registration is an

Coach Store Online

process and every company

Louis Vuitton Outlet

the registration so that it can safeguard

Coach Purse Outlet

products. Trademark search is an

Coach Purses Outlet

part of the trademark registration. Every state has

Coach Store Online Outlet

laws whereas some laws come under the central government. Trademark is a complicated

Coach Outlet Stores

of law in which filing a trademark registration application with the patent and

Louis Vuitton Handbags

office (PTO) is a straightforward process that can be accomplished without the help of a

Louis Vuitton

new company registration.A step-by-step instruction is provided by the PTO and may even offer electronic filling

Coach Outlet Store Online

. When filing a trademark application, internal consistency is

Coach Purses

important. According to the industry experts, anyone who uses a

Coach Outlet Store

in commerce automatically has common law trademark rights. It is important to monitor

Coach Purse

trademark against the third party infringers, so that you don't lose your rights irrespective of

Coach Outlet

.Trademark gives you important rights. Therefore, it is essential for

Louis Vuitton Purses

business or brand owner to get the trademark name when starting to run own business. Trademark

Louis Vuitton Outlet

in India can be easily availed at affordable prices. While going for a trademark registration in India, it is important for everyone to make sure to

Coach Outlet Online

the requirements of distinctiveness contained in section 9 of the trade and

Coach Handbags

marks act, 1958 as this plays a vital role for trademark registration in areas

Coach Outlet Handbags

Delhi/NCR, Mumbai, or Bangalore. As far as trademark name is concerned,

Coach Outlet Store Online

is a crucial step for any entrepreneur and makes sure that your products, services, brand

Coach Bags

and logos are protected and unique. Following the below given steps can help you register

Coach Online Outlet Store

own trademark name:Make sure you need a trademark, visit the patent and trademark office in

Coach Store Online

state to get the information on trademarks, patents and copywriting of intellectual property.Hire a lawyer to obtain a registered trademark. A lawyer can better help you and take

Annatto handicraft

to the next level because you can not trademark a name that is a common word. Trademark litigation is also one of the most popular terms associated with trademark. In general, litigation means fighting a case in the court of law. It often takes place when a person, organization, body or entity feels that his right has been

Beads handicraft

. The different types of litigation include civil, criminal, labour, tax, excise and so on. Among all of these, the popular is trademark litigation. Before filing a trademark, it is advised to search it because the search clarifies the availability of a mark. In case, if a mark is not available, it is recommended to stop proceeding with the filing. On the other hand, if the owner is still interested in the mark, then it has to be filed with considerable modifications and uniqueness. All of the above, if none of the circumstances are taken into consideration at the time of filing a trademark, then there is a possibility of objection or opposition by the owner of the similar mark and this can ultimately give rise to trademark litigation online company incorporation

2.  wetwe (12 April, 2012 - 23:43) says:

Coach Outlet shop, you can purchase the much less pricey instructor Bags. Dark and whitened will often be the classical colors, but dark bright fits is specifically classical. Instead stylish instructor dark bright Bags is optimistic to permit you are pleased. It is characterized developing utilization of the essential and fashion. They are right to sustain on any occasion. The thorough stitching produces the instructor Bags start looking really coordinating and natural. Right here you can choose any instructor Bags you like. Welcome and please get satisfaction apart away from your buying time!

Louis Vuitton Outlet bags are "fashion and wealthy urban style, and at a comparable time, is something of the Bohemian flavor". Can place the chain and shoulder straps are affordable as hand bag, go to different dinner is not rude; Also can use lengthy aglet as inclined shoulder bag, it appears such as the wind will most in all likelihood be on holiday some strong; nonetheless can use aureate brass chain back again on his shoulders, style and elegant. The whole bag within of a broad assortment of take advantage of the golden brass fittings, as well as a Louis Vuitton script carved metal time signature card, appears considerably tactile. Let a person or female should admire it.

Gucci Online products could possibly be the world brand, numerous individuals know Gucci this brand, but seldom individuals realize that Gucci brand determine qualifications and social background. Its companies such as fashion, leather-based goods, shoes, watches, tie, silk scarves, perfume, home products and puppy supplies, and Gucci brand determine all along famed with high-grade, luxurious, sex appeal is well-known within world, with "of the identity and fortune indicative" brand determine image will make abundant brownstone usage favorite, has usually been business sectors personage all along.

Nicola’s Brides. Lauren Milligan.12 April 2012. RICHARD NICOLL has created a collection of bridal dresses for Top shop. The dresses, which all feature Nicole’s signature sculptural shapes and feminine fabrics, will be available from this June - although images are yet to be released. Although the collection hasn't yet been photographed, we hear it's intended as a "modern alternative to meringue culture". The offering isn't Nicolle’s first foray into bridal design, however. He has created dresses for two friends recently - both of which he shared on his blog.

3.  qiongqiong (23 March, 2012 - 21:23) says:

Coach Outlet Discount Coach Purses Coach Factory Outlet Coach Outle Online Coach Handbags Outlet Coach Factory Online Coach Shoes On Sale Coach Factory Outlet Online Nike Yeezy Cheap Puma Shoes Nike Dunk Coach Handbags Outlet Supra Footwear Cheap Pradas Air Max 2012 Coach Factory Coach Factory Online


That spot is termed as Coach Outlet. The bigger finish outlets that promote Coach Outlet Online at entire price send their Discount Coach Purses purses to the Coach Factory Outlet. If you are interested to have a Coach Outle Online at a cost-effective price there's just one Coach Handbags Outlet which can provide you coach goods at Coach Factory Online. To be able to make a superior Coach Shoes On Sale, they've got to ship their Coach Factory Outlet Online on into a Nike Yeezy in an effort to Cheap Puma Shoes a lot more ground house for Nike Dunk. Just after the first Coach Handbags Outlet started, they later grew the Supra Footwear and opened, Do you like them? The usefulness of the Cheap Pradas would not take away the Air Max 2012 along with breathtaking Coach Factory involving these kind of popular artist accessories. A Coach Outlet Online focus aspect and discount coach handbags only the proper Coach Factory Online make sure coach purses are notable for this artist genuine ones potentially they are.

5.  Michaelle (25 January, 2012 - 10:25) says:

 I always thought that universal time (day) lasts for 24 hours and the Earth day lasts for 23 hours 54 minutes and 4.1 seconds :) Before I found this Online writing service I used to write an articles on Astronomy by my own. That time I thought that the universal time is a time which is calculated according to moon and its' position in comparisom with stars. :)  

6.  talk (21 February, 2012 - 23:39) says:

A good blog always comes-up with new and exciting information and while reading I have feel that this blog is really have all those quality that qualify a blog to be a good one Testking 640-802 Testking VCP-410 Testking 642-902 Testking 350-001 Testking 642-813 Testking 70-680