Biblical Calendar 2011-2012 (A.M. 6151)
Month: 13. Adar II, Year: 2011.
SUN MON TUE
WED THR FRI
SAB
1 3/6 2 3/ 7 3 3/ 8 4 3/
9 5 3/10 6 3/11 7 3/12
8 3/13 9 3/14 10 3/15 11 3/16 12 3/17 13 3/18 14 3/19
15 3/20* 16 3/21
17 3/22 18 3/23 19 3/24 20 3/25 21 3/26
22 3/27 23 3/28 24 3/29 25 3/30 26 3/31 27
4/ 1 28 4/ 2
29 4/ 3 30 4/4
Spring Equinox, 3/20* beginning of year, 3/20/2011. An Adar II has been determined after correction of computer program outputs: See techinical details.
Month: 1. Aviv (Nisan), Year: 2011
SUN MON TUE
WED THR FRI
SAB
1 4/ 5 2 4/ 6 3 4/ 7 4 4/ 8 5 4/ 9
6 4/10 7 4/11 8 4/12 9 4/13 10 4/14 11 4/15 12 4/16
13 4/17 14 4/18 15 4/19
16 4/20 17 4/21 18 4/22 19
4/23 1sab
20 4/24 21 4/25
22 4/26 23 4/27 24 4/28 25 4/29 26 4/30 2sab
27 5/ 1 28 5/ 2 29 5/ 3 30 5/ 4
15 4/19: *Aviv/Nisan 15th, annual Shabbat (rest day) of Passover, also 1st day of unleavened bread, sunset April 18 to sunset April 19. Agrees with Rabbinic and Sighted Moon.
21 4/25: Last annual Sabbath of unleavened bread April 24, sunset to Apirl 25. Agrees with Rabbinic and Sighted Moon
19 4/23: First of the sabbaths (second first sabbath, resurrection anniversary date).
Arthur Spier, "The Comprehensive Hebrew Calendar" page 247, 2011, shows that the Rabbinically calcualted Passover also falls in exactly the same dates this year.
Month: 2. Ziv (Iyyar), Year: 2011
SUN MON TUE
WED THR FRI
SAB
1 5/ 5 2 5/ 6 3 5/ 7 3rd sab
4 5/ 8 5 5/ 9 6 5/10 7 5/11 8 5/12 9 5/13
10 5/14 4th sab
11 5/15 12 5/16 13 5/17 14 5/18 15 5/19 16 5/20 17 5/21
5th sab
18 5/22 19 5/23 20 5/24 21 5/25 22 5/26 23
5/27 24 5/28 6th sab
25 5/29 26 5/30 27 5/31 28 6/ 1 29 6/ 2 30 6/ 3
18 5/22: Lag Baomer,
sighted moon same as Rabbinic.
Month: 3. Sivan, Year: 2011
SUN MON TUE
WED THR FRI
SAB
1 6/ 4 7th sab
2 6/ 5 3 6/ 6 4 6/ 7 5 6/ 8
6 6/ 9 7 6/10 8 6/11
9 6/12 10 6/13 11 6/14 12 6/15 13 6/16 14 6/17 15 6/18
16 6/19 17 6/20 18 6/21 19 6/22 20 6/23 21 6/24 22 6/25
23 6/26 24 6/27 25 6/28 26 6/29 27 6/30 28 7/ 1 29 7/ 2
1 6/ 4: The 7th Sabbath (cf. Lev. 23:15-16). "in the time after the seventh Sabbath counting a 50th day" (Lev. 23:16).
5 6/ 8: Shavuot falls on Sivan 5, which is June 7 sunset to June 8 sunet. In the Rabbinic calendar it falls on the 6th of Sivan, but here on the 5th since we are going by the sighted moon. Either way, Shavuot falls on the same week day (confirmed in Aruthr Spier).
Month: 4.
Shoshanna (lily), Year: 2011
SUN MON TUE
WED THR FRI
SAB
1 7/ 3 2 7/ 4 3 7/ 5 4 7/ 6 5 7/ 7 6 7/ 8
7 7/ 9
8 7/10 9 7/11 10 7/12 11 7/13 12 7/14 13 7/15 14 7/16
15 7/17 16 7/18 17 7/19 18 7/20 19 7/21 20
7/22 21 7/23
22 7/24 23 7/25 24 7/26 25 7/27 26 7/28 27 7/29 28 7/30
29 7/31 30 8/ 1
17 7/19: fast day
Month: 5. Av, Year: 2011
SUN MON TUE
WED THR FRI
SAB
1 8/ 2 2 8/ 3 3 8/ 4 4 8/ 5 5 8/ 6
6 8/ 7 7 8/ 8 8 8/ 9 9 8/10
10 8/11 11 8/12 12 8/13
13 8/14 14 8/15 15 8/16 16 8/17 17 8/18 18 8/19 19 8/20
20 8/21 21 8/22 22 8/23 23 8/24 24 8/25 25 8/26 26 8/27
27 8/28 28 8/29 29 8/30
9 8/10: The fast of Av will be a day early in the Rabbinic Calendar.
Month: 6.
Elul, Year: 2011
SUN MON TUE
WED THR FRI
SAB
1 8/31 2 9/ 1 3 9/ 2 4 9/ 3
5 9/ 4 6 9/ 5 7 9/ 6 8 9/ 7 9 9/ 8 10 9/ 9 11 9/10
12 9/11 13 9/12 14 9/13 15 9/14 16 9/15 17 9/16 18 9/17
19 9/18 20 9/19 21 9/20 22 9/21 23 9/22 24 9/23 25 9/24
26 9/25 27 9/26 28 9/27 29 9/28 30 9/29
Month: 7. Ethanim (Tishri), Year: 2011
SUN MON TUE
WED THR FRI
SAB
1 9/30 2 10/ 1
3 10/ 2 4 10/ 3 5 10/ 4 6 10/ 5 7 10/ 6 8
10/ 7 9 10/ 8
10 10/ 9 11 10/10 12 10/11 13 10/12 14 10/13
15 10/14 16 10/15
17 10/16 18 10/17 19 10/18 20 10/19 21 10/20 22
10/21 23 10/22
24 10/23 25 10/24 26 10/25 27 10/26 28 10/27 29 10/28
1 9/30: Yom Teruah, Trumpets,sunset 9/29 to sunset 9/30.
10 10/9: Yom Kippurim, sunset 10/8 to sunset 10/9
15 10/14: First day of Sukkot, Tabernacles, sunset 10/13 to 10/14
22 10/21: Last Great Day, 10/20 sunset to 10/21 sunset.
The Rabbinic Calendar shows all the dates one day early this year for this month. If they correctly follow Orthodox rules and observe two days for each day, then they will have the correct day on the second day of observance. This might be a little difficult in the case of Yom Kippur! But believe it or not, Arthur Spier shows Yom Kippur on the weekly Sabbath 10/8 (pg. 248, 2011).
Month: 8.
Bul, Year: 2011
SUN MON TUE
WED THR FRI
SAB
1 10/29
2 10/30 3 10/31 4 11/ 1 5 11/ 2 6 11/ 3 7
11/ 4 8 11/ 5
9 11/ 6 10 11/ 7 11 11/ 8 12 11/ 9 13 11/10 14 11/11 15 11/12
16 11/13 17 11/14 18 11/15 19 11/16 20 11/17 21 11/18 22 11/19
23 11/20 24 11/21 25 11/22 26 11/23 27 11/24 28 11/25 29 11/26
Month: 9. Kislev, Year: 2011
SUN MON TUE
WED THR FRI
SAB
1 11/27 2 11/28 3 11/29 4 11/30 5 12/ 1 6
12/ 2 7 12/ 3
8 12/ 4 9 12/ 5 10 12/ 6 11 12/ 7 12 12/ 8 13 12/ 9 14 12/10
15 12/11 16 12/12 17 12/13 18 12/14 19 12/15 20 12/16 21 12/17
22 12/18 23 12/19 24 12/20 25 12/21 26 12/22 27 12/23
28 12/24
29 12/25 30 12/26
25 12/21: First day Hanukah, sighted calendar same as Rabbinic Calendar time time around.
Month: 10.
Tebeth, Year: 2011/2012
SUN MON TUE
WED THR FRI
SAB
AMBpr
1 12/27 2 12/28 3 12/29 4 12/30 5 12/31
6 1/ 1 7 1/ 2 8 1/ 3 9 1/ 4 10 1/ 5 11 1/ 6 12 1/ 7
13 1/ 8 14 1/ 9 15 1/10 16 1/11 17 1/12 18 1/13 19 1/14
20 1/15 21 1/16 22 1/17 23 1/18 24 1/19 25 1/20 26 1/21
27 1/22 28 1/23 29 1/24
1 12/27: 7th and 8th days of Hanukah.
AMBpr: new moon could be day earlier.
Month: 11. Shebat, Year: 2012
SUN MON TUE
WED THR FRI
SAB
1 1/25 2 1/26 3 1/27 4 1/28
5 1/29 6 1/30 7 1/31 8 2/ 1 9 2/ 2 10 2/ 3 11 2/ 4
12 2/ 5 13 2/ 6 14 2/ 7 15 2/ 8 16 2/ 9 17 2/10 18 2/11
19 2/12 20 2/13 21 2/14 22 2/15 23 2/16 24 2/17 25 2/18
26 2/19 27 2/20 28 2/21 29 2/22 30 2/23
Month: 12.
Adar, Year: 2012
SUN MON TUE
WED THR FRI
SAB
1 2/24 2 2/25
3 2/26 4 2/27 5 2/28 6 2/29 7 3/ 1 8 3/ 2
9 3/ 3
10 3/ 4 11 3/ 5 12 3/ 6 13 3/ 7 14 3/ 8 15
3/ 9 16 3/10
17 3/11 18 3/12 19 3/13 20 3/14 21 3/15 22 3/16 23 3/17
24 3/18 25 3/19 26 3/20 27 3/21 28 3/22 29 3/23
14 3/ 8: Purim, Sighted and Rabbinic are the same.
Month: 1.
AVIV (Nisan) , Year: 2012
SUN MON TUE
WED THR FRI
SAB
1 3/24
2 3/25 3 3/26 4 3/27 5 3/28 6 3/29 7 3/30
8 3/31
9 4/ 1 10 4/ 2 11 4/ 3 12 4/ 4 13 4/ 5 14 4/ 6 15
4/ 7
16 4/ 8 17 4/ 9 18 4/10 19 4/11 20 4/12
21 4/13 22 4/14
1st sab
23 4/15 24 4/16 25 4/17 26 4/18 27 4/19 28 4/20 29 4/21
2nd sab
30 4/22
15 4/ 7: Sighted moon agrees exactly with Rabbinic Calendar here for 1st day of Unleavened Bread.
21 4/13: 7th day of ULB (sunset 4/12 to sunset 4/13). Agrees with Rabbinic Calendar and Sighted Moon calendar.
22 4/14: First of the Sabbaths, Resurrection Anniversary.
_______________________________
Comments: The above month was published at the tail end of last years calendar as Aviv. Now I have to issue a correction, as I failed to read the following line in the moon program, and the result will shift passover a whole month as this year is an extreme case of conditions, details to follow:
1. AVIV (Nisan) AL: 19.2 AV: 19.1 AN: 6.3 D: 12.8 PR: 0.0 AMBpr
1. AVIV (Nisan) AL: 19.2 AV: 19.1 AN: 6.3 D: 12.8 PR: <7
[I just discovered the reason "why" I failed to read the AMBpr. The program is so close to the borderline that it gives variant results on different runs of the program. This is indeed a rare bug in a borderline year! The first time last winter, the program must have come up without the AMBpr flag.]
The flag AMBpr means sighting of moon on the previous day was ambiguous. In the past we have waited for witnesses to report from Israel whether they saw the new moon before publishing dates based on the error ranges. However, avid interest in early sightings of the new moon has created a flood of new data that is skewed toward earlier sightings compared to ancient data that the program was first set up on. The reason for this is not hard to find. When the eyewitness' can use a computer program to tell them WHERE to look, and then first spot the crescent in binoculars, and then take their eye away from the optical aids and glimpse the new moon, it is obvious that the sucess rate of seeing the new moon earlier will go way up.
In this case, it is of huge importance whether the moon appears on March 6th or March 5th. The AMBpr refers to the 5th. The reason for this is that the month almost exactly straddles the equinox (March 20 after sunset). If March 6th were correct then Passover would be after the equinox. If March 5th were correct, then Passover would be before the equinox, and we'd have to declare the month Adar II. In the past AMBpr was disproved by observations, but last winter one of the AMBpr dates was confirmed by witnesss in Israel. It wasn't a critical month, but it was enough to joggle my mind to start double checking these early sighting possibilities.
The AMBpr date has to be verified in another computer program. For this we used John Walker's "Home Planet" (http://www.fourmilab.ch/homeplanet/). My Son downloaded the latest version. So running the calculations for March 5 at sunset, for Jerusalem Israel, yielded AL = 9.93 degrees, and a very steep ecliptic. What this means is that with the modern track record of eyewitness that sighting the moon on March 5 after sunset is almost virtually assured. Raw data: Sun: Alt = -2.047 deg. Azm = 84.186 deg; Moon: Alt = 7.216 deg. Azm = 87.777 deg. Time was adjusted till the sunset shadow fell over Israel. AL is determined from Alt and Azm by finding differences squaring, adding, and taking square root, i.e. finding the hypotenuse which give the degree distance between sun and moon.
So, the error, on my part, was an honest mistake! So onward to when Aviv (Nisan) will really occur this year:
The astronomical data on this page was generated by the new moon program written by Daniel Gregg in 'C' using public domain JPL code modules produced by Steve Moshier. The program is available for download here:
New Moon Program. (watch for the ambiguity flags).