Basic Astronomical Statistics For Any Date/Time
Within the 600-Year Period From 1600 to 2200
Date/Time Y M D
Time Zone
UT
Latitude
,
Longitude (Neg = West)
Elevation
m
NOTE:
For accurate local sunrise and sunset times, the local coordinates and time zone must be set correctly.
Double-Click Inside Text Area to Select ALL Text
BASIC ASTRONOMICAL STATISTICS Local Date/Time 2025 Sep 18 Thu 08:40:58 LT JD Number 2460937 LT Local Time Zone Offset UT-04:00:00 TZ Universal Date/Time 2025 Sep 18 Thu 12:40:58 UT JD Number 2460937 UT NASA Delta T Estimate +00:01:15 dT Dynamical Date/Time 2025 Sep 18 Thu 12:42:13 TT JD Number 2460937 TT Latitude and Longitude +42.676458333333 , -76.823011111111 ±Deg Min Seconds.sssss +042 40 35.25000 , -076 49 22.84000 Elevation in meters 145 m Time Variable T +0.25713974858672 Julian centuries from JD2000.0 TT Time Variable t +0.02571397485867 Julian millennia from JD2000.0 TT Working Julian Date TT 2460937.02931713 TT ______________________________________________________________________________ Local Sunrise and Sunset Times For Date Local Date: 2025 Sep 18 Thu in Time Zone UT-04:00 Location: Latitude, Longitude +42.676458333333, -76.823011111111 2025 Sep 18 Thu Sunrise: 06:51 2025 Sep 18 Thu Sunset: 19:10 ______________________________________________________________________________ Obliquity of the Ecliptic Mean +23° 26' 09.411" = +23.4359476367° True +23° 26' 18.890" = +23.4385805936° ______________________________________________________________________________ Local Sidereal Time at Longitude -76.823011111111° (W) in Time Zone UT-04:00 Mean 07h 25m 40.982s = 07.4280506809 h = 111.4207602129° True 07h 25m 41.224s = 07.4281177708 h = 111.4217665624° ______________________________________________________________________________ Greenwich Sidereal Time Mean 12h 32m 58.505s = 12.5495847549 h = 188.2437713239° True 12h 32m 58.747s = 12.5496518449 h = 188.2447776734° ______________________________________________________________________________ Nutations (IAU 2000B Series) In Obliquity +0.0026329569° = +09.479" In Longitude +0.0010968542° = +03.949" In RA +0.0010063495° = +03.623" = +00.242s = +0.0000670900 h ______________________________________________________________________________ Latitudes of the +Arctic and -Antarctic Circles ± 66.5614194064 = ± 66° 33' 41.110" ______________________________________________________________________________
Jay Tanner - 2025 - v1.00