DE405 Lunar Ephemeris Calculator Spanning the 600-Year Period From 1600 to 2200 on the Modern Gregorian Calendar PHP Program by Jay Tanner - Based on the NASA/JPL DE405 Ephemeris Model
Calendar Date Year / Month / Day	Time hh:mm:ss	Date/Time Mode LT | UT | TT	Local Time Zone Offset From UT ±hh:mm (Neg/Pos  =  West/East)
			Local Time (LT) =  UT
Default Location:  America/New_York - Your Local Latitude, Lonitude and Time Zone May be Different
Geographic Location Used For Local Topocentric Computations			89.8335 deg
Latitude Deg.ddd or DMS (Neg=S)	Longitude Deg.ddd or DMS (Neg=W)	Sea-Level Elevation meters
QUICK DE405 LUNAR EPHEMERIS STATISTICS ---------------------------- DATE/TIME/MODE/ZONE/LOCATION Date = 2025 Aug 31 Sun Time = 02:03:18 LT Time Zone = UT-04:00 Delta T = +00:01:15 Latitude = +42.6764593 deg N = +42° 40' 35.25" Longitude = -76.8230111 deg W = -76° 49' 22.84" = -05h 07m 17.52s Elevation = +0.0 m JD TT = 2460918.75315973 = Working Julian Date on TT scale Phase Angle = 89.8335 deg Visual Phase = First quarter moon Horizon Altitude = -31.847° BELOW local horizon - Descending in W Direction Azimuth = 260.845° = W (N=0, E=90, S=180, W=270) ====================================================================== TIME LT LOCAL BASIC EVENTS SCHEDULE FOR DATE -------- ------------------------------------ 02:25:06 First Quarter Moon = Phase 90° 06:31 Sunrise 15:12 Moonrise - First quarter moon 19:43 Sunset 23:33 Moonset ====================================================================== GEOCENTRIC LUNAR COORDINATES AND DISTANCE Right Ascension = 16h 20m 56.828s = 16.3491189 h = 245.2367835° Declination = -26° 45' 05.67" = -26.751575° Distance = 250359.071 mi = 402913.869 km Angular Diameter = 29' 39.57" = 29.65949' = 1779.57" = 0.4943249° Eq. Horiz. Parallax = 54' 25.32" = 0.9070320° = 54.42192' = 3265.32" Local Hour Angle = +07h 15m 01.07s = +7.2502967 h = +108.7544510° ----------------------------- TOPOCENTRIC LUNAR COORDINATES Right Ascension = 16h 18m 07.583s = 16.3021063 h = 244.5315945° Declination = -27° 11' 44.48" = -27.195689° Radial Velocity = -84.95 km/h = -52.79 mi/h = Approaching Earth Orbital Velocity = 3491.56 km/h = 2169.56 mi/h AUGUST 2025 - Lunar Quarter Phases, Apogees and Perigees For Time Zone UT-04:00 Applied NASA Delta T = +00:01:15 Date and Time LT Lunar Event --------------------- ----------------------------------- 2025 Aug 01 Fri 08:41 First Quarter Moon = Phase 90 2025 Aug 01 Fri 16:36 Apogee 251134.22 mi = 404161.35 km 2025 Aug 09 Sat 03:55 Full Moon = Phase 180 2025 Aug 14 Thu 13:59 Perigee 229465.10 mi = 369288.28 km 2025 Aug 16 Sat 01:12 Last Quarter Moon = Phase 270 2025 Aug 23 Sat 02:06 New Moon = Phase 0/360 2025 Aug 29 Fri 11:34 Apogee 251374.34 mi = 404547.78 km 2025 Aug 31 Sun 02:25 First Quarter Moon = Phase 90 There are two first quarter moons in August of 2025 LT. There are also two lunar apogees in August of 2025 LT.
EXTENDED DE405 LUNAR EPHEMERIS STATISTICS AND HOURLY TABLE Time Mode = LT Time Zone = UT-04:00 ---------------------------------------------------------- CALENDAR DATE TIME JULIAN DATE JD NUMBER --------------- ----------- ---------------- ----------- 2025 Aug 31 Sun 02:03:18 LT 2460918.58562500 2460919 LT -04:00:00 TZ -0.16666667 2025 Aug 31 Sun 06:03:18 UT 2460918.75229167 2460919 UT +00:01:15 dT +0.00086806 2025 Aug 31 Sun 06:04:33 TT 2460918.75315973 2460919 TT JD TT = 2460918.75315973 = Working Julian Date on TT scale Latitude = +42.6764593 deg N = +42° 40' 35.25" Longitude = -76.8230111 deg W = -76° 49' 22.84" = -05h 07m 17.52s Elevation = +0.0 m ----------- EARTH GEOID ρ × sin(φ') = +0.6743577407 ρ × cos(φ') = +0.7363265249 ---------------------- APPARENT SIDEREAL TIME Greenwich 04h 43m 15.42s = 4.7209497 h = 70.8142453 deg Local 23h 35m 57.90s = 23.5994156 h = 353.9912342 deg ================================================================= LUNAR POSITION, DISTANCE, PHASE AND LOCAL SUN/MOON RISE/SET TIMES Date = 2025 Aug 31 Sun Time = 02:03:18 LT Time Zone = UT-04:00 Delta T = +00:01:15 JD TT = 2460918.75315973 GEOGRAPHIC LOCATION Latitude = +42.6764593 deg N = +42° 40' 35.25" Longitude = -76.8230111 deg W = -76° 49' 22.84" = -05h 07m 17.52s Elevation = +0.0 m GEOCENTRIC LUNAR COORDINATES Right Ascension = 16h 20m 56.828s = 16.3491189 h = 245.2367835° Declination = -26° 45' 05.67" = -26.751575° Distance = 250359.071 mi = 402913.869 km Phase Angle = 89.83354° Visual Phase = First quarter moon Angular Diameter = 29' 39.57" = 29.65949' = 1779.57" = 0.4943249° Eq. Horiz. Parallax = 54' 25.32" = 0.9070320° = 54.42192' = 3265.32" Radial Velocity = -84.95 km/h = -52.79 mi/h = Approaching Earth Orbital Velocity = 3491.56 km/h = 2169.56 mi/h TOPOCENTRIC LUNAR COORDINATES Right Ascension = 16h 18m 07.583s = 16.3021063 h = 244.5315945° Declination = -27° 11' 44.48" = -27.195689° Horizon Altitude = -31.847° BELOW local horizon - Descending in W Direction Azimuth = 260.845° = W (N=0, E=90, S=180, W=270) Local Hour Angle = +07h 15m 01.07s = +7.2502967 h = +108.7544510° Light Time = 1.3169 sec = 1-way surface-to-surface = 2.6339 sec = 2-way surface-to-surface -------- ------------------------------------------------ TIME LT LOCAL EVENTS SCHEDULE FOR DATE 02:25:06 First Quarter Moon = Phase 90° 06:31 Sunrise 15:12 Moonrise - First quarter moon 19:43 Sunset 23:33 Moonset ----------------------------------------------------------------- HOURLY GEOCENTRIC LUNAR COORDINATES, DISTANCE AND PHASE EPHEMERIS DATE = 2025 Aug 31 Sun LT TZ = UT-04:00 = Time Zone Offset From UT (Neg/Pos = West/East) dT = +00:01:15 = NASA Delta T estimate Table Origin for 00:00:00 LT of date = 2460918.66753473 TT LT hh RA Hrs Decl Deg Dist Km Dist Mi Phase Deg -- ---------- ---------- ---------- ---------- --------- -3 16.1659349 -26.264580 403315.397 250608.569 87.5209 -2 16.2020207 -26.365006 403240.406 250561.972 87.9780 -1 16.2381821 -26.463430 403163.220 250514.011 88.4352 00 16.2744186 -26.559839 403083.843 250464.688 88.8927 01 16.3107300 -26.654219 403002.281 250414.008 89.3504 02 16.3471156 -26.746556 402918.538 250361.972 89.8084 03 16.3835750 -26.836839 402832.621 250308.586 90.2665 04 16.4201078 -26.925053 402744.533 250253.851 90.7249 05 16.4567134 -27.011186 402654.282 250197.771 91.1835 06 16.4933911 -27.095224 402561.875 250140.352 91.6423 07 16.5301406 -27.177154 402467.316 250081.596 92.1014 08 16.5669612 -27.256965 402370.614 250021.508 92.5607 09 16.6038520 -27.334643 402271.776 249960.093 93.0203 10 16.6408126 -27.410175 402170.809 249897.355 93.4802 11 16.6778423 -27.483550 402067.721 249833.299 93.9403 12 16.7149402 -27.554754 401962.521 249767.931 94.4007 13 16.7521057 -27.623775 401855.216 249701.255 94.8614 14 16.7893379 -27.690602 401745.816 249633.277 95.3223 15 16.8266361 -27.755221 401634.330 249564.002 95.7836 16 16.8639994 -27.817622 401520.766 249493.437 96.2451 17 16.9014270 -27.877792 401405.136 249421.588 96.7069 18 16.9389179 -27.935720 401287.449 249348.461 97.1691 19 16.9764713 -27.991394 401167.714 249274.061 97.6315 20 17.0140862 -28.044804 401045.944 249198.396 98.0943 21 17.0517616 -28.095937 400922.150 249121.474 98.5574 22 17.0894966 -28.144783 400796.341 249043.300 99.0208 23 17.1272902 -28.191331 400668.530 248963.882 99.4845 24 17.1651412 -28.235570 400538.729 248883.228 99.9486 25 17.2030487 -28.277489 400406.950 248801.344 100.4131 26 17.2410115 -28.317079 400273.206 248718.239 100.8778 27 17.2790285 -28.354329 400137.510 248633.922 101.3430 28 17.3170986 -28.389229 399999.874 248548.399 101.8084 ======================================================================
DE405 Lunar Ephemeris Calculator - v3.0 - A PHP Astronomy Program by Jay Tanner Revised: 2023 March 06 at 07:54:25 PM Monday