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 Jul 17 Thu 04:31:19 LT JD Number 2460874 LT Local Time Zone Offset UT-04:00:00 TZ Universal Date/Time 2025 Jul 17 Thu 08:31:19 UT JD Number 2460874 UT NASA Delta T Estimate +00:01:15 dT Dynamical Date/Time 2025 Jul 17 Thu 08:32:34 TT JD Number 2460874 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 +0.25541015603203 Julian centuries from JD2000.0 TT Time Variable t +0.02554101560320 Julian millennia from JD2000.0 TT Working Julian Date TT 2460873.85594907 TT ______________________________________________________________________________ Local Sunrise and Sunset Times For Date Local Date: 2025 Jul 17 Thu in Time Zone UT-04:00 Location: Latitude, Longitude +42.676458333333, -76.823011111111 2025 Jul 17 Thu Sunrise: 05:45 2025 Jul 17 Thu Sunset: 20:41 ______________________________________________________________________________ Obliquity of the Ecliptic Mean +23° 26' 09.492" = +23.4359701257° True +23° 26' 18.239" = +23.4383997524° ______________________________________________________________________________ Local Sidereal Time at Longitude -76.823011111111° (W) in Time Zone UT-04:00 Mean 23h 06m 57.983s = 23.1161062940 h = 346.7415944105° True 23h 06m 58.189s = 23.1161637078 h = 346.7424556163° ______________________________________________________________________________ Greenwich Sidereal Time Mean 04h 14m 15.505s = 04.2376403681 h = 63.5646055215° True 04h 14m 15.712s = 04.2376977818 h = 63.5654667273° ______________________________________________________________________________ Nutations (IAU 2000B Series) In Obliquity +0.0024296266° = +08.747" In Longitude +0.0009386560° = +03.379" In RA +0.0008612058° = +03.100" = +00.207s = +0.0000574137 h ______________________________________________________________________________ Latitudes of the +Arctic and -Antarctic Circles ± 66.5616002476 = ± 66° 33' 41.761" ______________________________________________________________________________
Jay Tanner - 2025 - v1.00