Basic Lunar Events Synopsis Calculator

Basic 600-Year Lunar Events Synopsis Calculator
For Any Year/Month in the Range From 1600 to 2200 on the Standard Gregorian Calendar

Calendar Date (1600 to 2200)
Year and Month

Time Zone Offset
Neg | Pos = West | East
UT

NASA ΔT
Polynomial Estimate

BASIC LUNAR EVENTS SYNOPSIS For November of 2019 LT (Local Zone Time) Local Time Zone Offset = UT+00:00 = Same as UT/GMT THE BASIC LUNAR EVENTS ARE: The Lunar Phases : New Moons, First Quarter, Last Quarter and Full Moons Lunar Perigees : Minimum orbital distance Lunar Apogees : Maximum orbital distance Lunar Eclipses : Penumbral, partial and total eclipses max-points Local Time Zone Offset = UT+00:00 = Same as UT/GMT Julian_Date_TT Calendar_Date Time_GMT Lunar_Event ---------------- ------------------------ ----------------------------------- 2458791.93349356 2019 Nov 04 Mon 10:23:02 First Quarter Moon 2458794.85907017 2019 Nov 07 Thu 08:35:52 Lunar Apogee at 405057.885 km 2458800.06635716 2019 Nov 12 Tue 13:34:21 Full Moon 2458807.38339354 2019 Nov 19 Tue 21:10:53 Last Quarter Moon 2458810.82087004 2019 Nov 23 Sat 07:40:51 Lunar Perigee at 366716.233 km 2458814.12968178 2019 Nov 26 Tue 15:05:33 New Moon ============================================================================== SOME SPECIAL NOTES Geocentric coordinates are for the true equator, ecliptic and equinox of the date. These are the raw geocentric sky coordinates or the values tabulated in the astronomical almanacs prior to any local topocentric corrections. The lunar phase images slightly vary in size because they are scaled according to the geocentric lunar distance at the time of the event relative to the mean distance of 384402 km (238856 mi) = 100.000 percent. Meaning of apparent lunar size percentages: 100.000 % mean = Apparent size of Moon at mean distance of 384402 km. 102.814 % mean = Moon appears 2.814 percent larger than at mean distance. 96.523 % mean = Moon appears 96.523 percent of its size at mean distance. This program uses a cookie with the name: PHPSL_Lunar_Events_Synopsis_Settings The cookie remembers the interface settings between calls for up to 30 days. If you navigate to another page or shut down the browser and return later, the previous settings will be recalled from the cookie unless the cookie was deleted. If the cookie is idle for 30 days or more, then it will be automatically expired. It is updated to current on each program call. ============================================================================== BELOW ARE THE EPHEMERIS STATISTICS FOR THE LUNAR EVENTS LISTED ABOVE IN LOCAL TIME ZONE OFFSET UT+00:00 = Same as UT/GMT

First Quarter Moon Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2458791.93266027 LT LOCAL DATE/TIME 2019 Nov 04 Mon 10:23:02 LT 2458792 +0.00000000 TZ Time Zone +00:00:00 TZ 2458791.93266027 UT Universal Time 2019 Nov 04 Mon 10:23:02 UT 2458792 +0.00083333 DT NASA Delta T +00:01:12 DT 2458791.93349360 TT Terrestrial Time 2019 Nov 04 Mon 10:24:14 TT 2458792 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 20h 59m 46.142s -19° 49' 53.48" 248477.665 mi 90.000° 29' 52.88" 20.9961505 h -19.831523° 399886.040 km 0.4980216° 314° 56' 32.13" 0.002673073 AU 314.942257° 1.334 s -----------------------------------------------------------------------------

N



First Quarter Moon
399886.040 km
248477.665 mi

Phase:  90.000°
Ang Diam: 29' 52.88"
Semidiam: 14' 56.44"
Size:  96.128 % mean

Lunar Apogee at 405057.885 km = 251691.301 mi Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2458794.85823687 LT LOCAL DATE/TIME 2019 Nov 07 Thu 08:35:52 LT 2458795 +0.00000000 TZ Time Zone +00:00:00 TZ 2458794.85823687 UT Universal Time 2019 Nov 07 Thu 08:35:52 UT 2458795 +0.00083333 DT NASA Delta T +00:01:12 DT 2458794.85907020 TT Terrestrial Time 2019 Nov 07 Thu 08:37:04 TT 2458795 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 23h 17m 44.463s -9° 37' 02.33" 251691.301 mi 121.890° 29' 29.99" 23.2956841 h -9.617314° 405057.885 km 0.4916628° 349° 26' 06.94" 0.002707645 AU 349.435261° 1.351 s ----------------------------------------------------------------------------- Phase appearance: Waxing gibbous moon.

N



Apogee
405057.885 km
251691.301 mi

Phase: 121.890°
Ang Diam: 29' 29.99"
Semidiam: 14' 44.99"
Size:  94.901 % mean

Full Moon Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2458800.06552387 LT LOCAL DATE/TIME 2019 Nov 12 Tue 13:34:21 LT 2458800 +0.00000000 TZ Time Zone +00:00:00 TZ 2458800.06552387 UT Universal Time 2019 Nov 12 Tue 13:34:21 UT 2458800 +0.00083333 DT NASA Delta T +00:01:12 DT 2458800.06635720 TT Terrestrial Time 2019 Nov 12 Tue 13:35:33 TT 2458800 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 03h 13m 58.439s +13° 57' 05.34" 244803.105 mi 180.000° 30' 19.79" 03.2328996 h +13.951484° 393972.409 km 0.5054970° 48° 29' 36.58" 0.002633543 AU 48.493494° 1.314 s -----------------------------------------------------------------------------

N



Full Moon
393972.409 km
244803.105 mi

Phase: 180.000°
Ang Diam: 30' 19.79"
Semidiam: 15' 09.89"
Size:  97.571 % mean

Last Quarter Moon Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2458807.38256017 LT LOCAL DATE/TIME 2019 Nov 19 Tue 21:10:53 LT 2458807 +0.00000000 TZ Time Zone +00:00:00 TZ 2458807.38256017 UT Universal Time 2019 Nov 19 Tue 21:10:53 UT 2458807 +0.00083333 DT NASA Delta T +00:01:12 DT 2458807.38339350 TT Terrestrial Time 2019 Nov 19 Tue 21:12:05 TT 2458807 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 10h 03m 13.280s +16° 02' 35.89" 230840.259 mi 269.999° 32' 09.86" 10.0536888 h +16.043304° 371501.386 km 0.5360731° 150° 48' 19.20" 0.002483333 AU 150.805332° 1.239 s -----------------------------------------------------------------------------

N



Last Quarter Moon
371501.386 km
230840.259 mi

Phase: 269.999°
Ang Diam: 32' 09.86"
Semidiam: 16' 04.93"
Size: 103.473 % mean

Lunar Perigee at 366716.233 km = 227866.903 mi Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2458810.82003667 LT LOCAL DATE/TIME 2019 Nov 23 Sat 07:40:51 LT 2458811 +0.00000000 TZ Time Zone +00:00:00 TZ 2458810.82003667 UT Universal Time 2019 Nov 23 Sat 07:40:51 UT 2458811 +0.00083333 DT NASA Delta T +00:01:12 DT 2458810.82087000 TT Terrestrial Time 2019 Nov 23 Sat 07:42:03 TT 2458811 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 13h 08m 44.720s -1° 45' 31.62" 227866.903 mi 315.815° 32' 35.05" 13.1457556 h -1.758783° 366716.233 km 0.5430681° 197° 11' 10.80" 0.002451347 AU 197.186334° 1.223 s ----------------------------------------------------------------------------- Phase appearance: Waning morning crescent moon.

N



Perigee
366716.233 km
227866.903 mi

Phase: 315.815°
Ang Diam: 32' 35.05"
Semidiam: 16' 17.52"
Size: 104.823 % mean

New Moon Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2458814.12884847 LT LOCAL DATE/TIME 2019 Nov 26 Tue 15:05:33 LT 2458814 +0.00000000 TZ Time Zone +00:00:00 TZ 2458814.12884847 UT Universal Time 2019 Nov 26 Tue 15:05:33 UT 2458814 +0.00083333 DT NASA Delta T +00:01:12 DT 2458814.12968180 TT Terrestrial Time 2019 Nov 26 Tue 15:06:45 TT 2458814 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 16h 10m 32.965s -18° 02' 59.18" 231701.486 mi 0.000° 32' 02.69" 16.1758235 h -18.049771° 372887.396 km 0.5340805° 242° 38' 14.47" 0.002492598 AU 242.637352° 1.244 s -----------------------------------------------------------------------------

N



New Moon
372887.396 km
231701.486 mi

Phase: 0.000°
Ang Diam: 32' 02.69"
Semidiam: 16' 01.34"
Size: 103.088 % mean

PROGRAM INFO:

BASIC 600-YEAR LUNAR EVENTS SYNOPSIS CALCULATOR FOR ANY MONTH

A PHP 7.x Astronomy Program by Jay Tanner - 2019
http://www.NeoProgrammics.com

This program simply gives a quick general synopsis of the dates and times of
all basic lunar events for any given month in the 600-year period from 1600
to 2200 on the Gregorian calendar.

THE BASIC LUNAR EVENTS ARE:
The Lunar Phases : New Moons, First Quarter, Last Quarter and Full Moons
Lunar Perigees   : Minimum orbital distance
Lunar Apogees    : Maximum orbital distance
Lunar Eclipses   : Penumbral, partial and total eclipses max-points

The computations are based on the NASA/JPL DE405 ephemeris model and the NASA
polynomial expressions for remote Delta T estimation, to the nearest second.

The lunar eclipse times are based on the Eclipse Predictions by Fred Espenak,
NASA GSFC Emeritus.

The basic events are computed for three time scales (LT, UT and TT).
TZ = Local Time Zone Offset From UT (Neg/Pos = West/East)
LT = Local Time in the given TZ
UT = Universal Time (UT1/GMT)
TT = Standard Astronomical Atomic-Based Time Scale (Ephemeris Time)

=====
NOTES

DT = NASA polynomial Delta T estimate, to the nearest second.
LT = UT + (TZ)
UT = LT − (TZ)
TT = UT + (DT)

If TZ = UT±00:00, then LT = Same as UT

The lunar phase images slightly vary in size because they are scaled according
to the geocentric lunar distance at the time of the event relative to the mean
distance of 384402 km (238856 mi) = 100.000 percent.

Meaning of apparent lunar size percentages:
100.000 % mean = Apparent size of Moon at mean distance of 384402 km.
104.296 % mean = Moon appears 4.296 percent larger than at mean distance.
 95.701 % mean = Moon appears 95.701 percent of its size at mean distance.

==============================================================================
REFERENCES:

NASA/JPL DEVELOPMENT (DExxx) EPHEMERIS MODELS
https://en.wikipedia.org/wiki/Jet_Propulsion_Laboratory_Development_Ephemeris
ftp://ssd.jpl.nasa.gov/pub/eph/planets/README.txt

ECLIPSES
https://eclipse.gsfc.nasa.gov/lunar.html

DELTA T ESTIMATION
https://eclipse.gsfc.nasa.gov/SEcat5/deltatpoly.html
https://eclipse.gsfc.nasa.gov/SEhelp/deltaT.html
https://eclipse.gsfc.nasa.gov/SEcat5/deltat.html

Program by Jay Tanner Revised: Tuesday, November 05, 2019 at 09:44 AM UTC