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 June of 2020 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 ---------------- ------------------------ ----------------------------------- 2459003.65257461 2020 Jun 03 Wed 03:38:30 Lunar Perigee at 364365.674 km 2459006.30107147 2020 Jun 05 Fri 19:12:21 Full Moon 2459006.30988426 2020 Jun 05 Fri 19:25:02 Penumbral Lunar Eclipse Max-point 2459013.76724733 2020 Jun 13 Sat 06:23:38 Last Quarter Moon 2459015.54007203 2020 Jun 15 Mon 00:56:30 Lunar Apogee at 404595.165 km 2459021.77959129 2020 Jun 21 Sun 06:41:25 New Moon 2459028.84502970 2020 Jun 28 Sun 08:15:39 First Quarter Moon 2459030.59308760 2020 Jun 30 Tue 02:12:51 Lunar Perigee at 368958.000 km ============================================================================== 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. 101.036 % mean = Moon appears 1.036 percent larger than at mean distance. 97.589 % mean = Moon appears 97.589 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

Lunar Perigee at 364365.674 km = 226406.333 mi Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2459003.65174127 LT LOCAL DATE/TIME 2020 Jun 03 Wed 03:38:30 LT 2459004 +0.00000000 TZ Time Zone +00:00:00 TZ 2459003.65174127 UT Universal Time 2020 Jun 03 Wed 03:38:30 UT 2459004 +0.00083333 DT NASA Delta T +00:01:12 DT 2459003.65257460 TT Terrestrial Time 2020 Jun 03 Wed 03:39:42 TT 2459004 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 14h 24m 23.113s -9° 56' 35.97" 226406.333 mi 144.029° 32' 47.66" 14.4064203 h -9.943326° 364365.674 km 0.5465715° 216° 05' 46.70" 0.002435634 AU 216.096305° 1.215 s ----------------------------------------------------------------------------- Phase appearance: Waxing gibbous moon.

N



Perigee
364365.674 km
226406.333 mi

Phase: 144.029°
Ang Diam: 32' 47.66"
Semidiam: 16' 23.83"
Size: 105.499 % mean

Full Moon Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2459006.30023817 LT LOCAL DATE/TIME 2020 Jun 05 Fri 19:12:21 LT 2459006 +0.00000000 TZ Time Zone +00:00:00 TZ 2459006.30023817 UT Universal Time 2020 Jun 05 Fri 19:12:21 UT 2459006 +0.00083333 DT NASA Delta T +00:01:12 DT 2459006.30107150 TT Terrestrial Time 2020 Jun 05 Fri 19:13:33 TT 2459006 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 16h 57m 53.609s -21° 25' 40.40" 229289.333 mi 180.000° 32' 22.92" 16.9648914 h -21.427889° 369005.413 km 0.5396991° 254° 28' 24.14" 0.002466649 AU 254.473371° 1.231 s -----------------------------------------------------------------------------

N



Full Moon
369005.413 km
229289.333 mi

Phase: 180.000°
Ang Diam: 32' 22.92"
Semidiam: 16' 11.46"
Size: 104.172 % mean

Penumbral Lunar Eclipse Max-point Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2459006.30905097 LT LOCAL DATE/TIME 2020 Jun 05 Fri 19:25:02 LT 2459006 +0.00000000 TZ Time Zone +00:00:00 TZ 2459006.30905097 UT Universal Time 2020 Jun 05 Fri 19:25:02 UT 2459006 +0.00083333 DT NASA Delta T +00:01:12 DT 2459006.30988430 TT Terrestrial Time 2020 Jun 05 Fri 19:26:14 TT 2459006 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 16h 58m 25.549s -21° 27' 08.75" 229308.311 mi 180.117° 32' 22.76" 16.9737637 h -21.452430° 369035.955 km 0.5396544° 254° 36' 23.24" 0.002466853 AU 254.606455° 1.231 s ----------------------------------------------------------------------------- Phase appearance: Full Moon.

N

Phase: 180.117°
Ang Diam: 32' 22.76"
Semidiam: 16' 11.38"
Size: 104.164 % mean

Last Quarter Moon Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2459013.76641397 LT LOCAL DATE/TIME 2020 Jun 13 Sat 06:23:38 LT 2459014 +0.00000000 TZ Time Zone +00:00:00 TZ 2459013.76641397 UT Universal Time 2020 Jun 13 Sat 06:23:38 UT 2459014 +0.00083333 DT NASA Delta T +00:01:12 DT 2459013.76724730 TT Terrestrial Time 2020 Jun 13 Sat 06:24:50 TT 2459014 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 23h 41m 33.446s -7° 42' 37.83" 250174.559 mi 270.000° 29' 40.72" 23.6926239 h -7.710507° 402616.926 km 0.4946436° 355° 23' 21.69" 0.002691328 AU 355.389359° 1.343 s -----------------------------------------------------------------------------

N



Last Quarter Moon
402616.926 km
250174.559 mi

Phase: 270.000°
Ang Diam: 29' 40.72"
Semidiam: 14' 50.36"
Size:  95.476 % mean

Lunar Apogee at 404595.165 km = 251403.780 mi Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2459015.53923867 LT LOCAL DATE/TIME 2020 Jun 15 Mon 00:56:30 LT 2459016 +0.00000000 TZ Time Zone +00:00:00 TZ 2459015.53923867 UT Universal Time 2020 Jun 15 Mon 00:56:30 UT 2459016 +0.00083333 DT NASA Delta T +00:01:12 DT 2459015.54007200 TT Terrestrial Time 2020 Jun 15 Mon 00:57:42 TT 2459016 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 00h 58m 46.232s +0° 44' 24.44" 251403.780 mi 289.416° 29' 32.01" 00.9795090 h +0.740122° 404595.165 km 0.4922251° 14° 41' 33.49" 0.002704552 AU 14.692635° 1.350 s ----------------------------------------------------------------------------- Phase appearance: Waning morning crescent moon.

N



Apogee
404595.165 km
251403.780 mi

Phase: 289.416°
Ang Diam: 29' 32.01"
Semidiam: 14' 46.01"
Size:  95.009 % mean

New Moon Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2459021.77875797 LT LOCAL DATE/TIME 2020 Jun 21 Sun 06:41:25 LT 2459022 +0.00000000 TZ Time Zone +00:00:00 TZ 2459021.77875797 UT Universal Time 2020 Jun 21 Sun 06:41:25 UT 2459022 +0.00083333 DT NASA Delta T +00:01:12 DT 2459021.77959130 TT Terrestrial Time 2020 Jun 21 Sun 06:42:37 TT 2459022 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 06h 01m 33.335s +23° 33' 00.65" 241071.673 mi 0.000° 30' 47.96" 06.0259264 h +23.550180° 387967.251 km 0.5133214° 90° 23' 20.03" 0.002593401 AU 90.388896° 1.294 s -----------------------------------------------------------------------------

N



New Moon
387967.251 km
241071.673 mi

Phase:   0.000°
Ang Diam: 30' 47.96"
Semidiam: 15' 23.98"
Size:  99.081 % mean

First Quarter Moon Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2459028.84419637 LT LOCAL DATE/TIME 2020 Jun 28 Sun 08:15:39 LT 2459029 +0.00000000 TZ Time Zone +00:00:00 TZ 2459028.84419637 UT Universal Time 2020 Jun 28 Sun 08:15:39 UT 2459029 +0.00083333 DT NASA Delta T +00:01:12 DT 2459028.84502970 TT Terrestrial Time 2020 Jun 28 Sun 08:16:51 TT 2459029 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 12h 34m 19.357s +1° 59' 00.46" 229832.319 mi 90.000° 32' 18.33" 12.5720437 h +1.983460° 369879.264 km 0.5384240° 188° 34' 50.36" 0.002472490 AU 188.580656° 1.234 s -----------------------------------------------------------------------------

N



First Quarter Moon
369879.264 km
229832.319 mi

Phase:  90.000°
Ang Diam: 32' 18.33"
Semidiam: 16' 09.16"
Size: 103.926 % mean

Lunar Perigee at 368958.000 km = 229259.872 mi Julian_Date Time_Scale Calendar_Date Time JD_Number ------------------- ---------------- --------------- ------------ --------- 2459030.59225427 LT LOCAL DATE/TIME 2020 Jun 30 Tue 02:12:51 LT 2459031 +0.00000000 TZ Time Zone +00:00:00 TZ 2459030.59225427 UT Universal Time 2020 Jun 30 Tue 02:12:51 UT 2459031 +0.00083333 DT NASA Delta T +00:01:12 DT 2459030.59308760 TT Terrestrial Time 2020 Jun 30 Tue 02:14:03 TT 2459031 ----------------------------------------------------------------------------- Geocentric Distance Right_Ascension Declination Light_Time Phase_Ang Ang_Diam --------------- --------------- --------------- --------- ---------- 14h 05m 36.756s -8° 01' 00.64" 229259.872 mi 113.272° 32' 23.17" 14.0935432 h -8.016845° 368958.000 km 0.5397685° 211° 24' 11.33" 0.002466332 AU 211.403148° 1.231 s ----------------------------------------------------------------------------- Phase appearance: Waxing gibbous, just past first quarter moon.

N



Perigee
368958.000 km
229259.872 mi

Phase: 113.272°
Ang Diam: 32' 23.17"
Semidiam: 16' 11.58"
Size: 104.186 % mean

PROGRAM INFO:

BASIC 600-YEAR LUNAR EVENTS SYNOPSIS CALCULATOR FOR ANY MONTH

A PHP 7.x Astronomy Program by Jay Tanner - 2020
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.
102.557 % mean = Moon appears 2.557 percent larger than at mean distance.
 96.007 % mean = Moon appears 96.007 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: Thursday, January 01, 1970 at 12:00 AM UTC