Ege University Observatory Application ve Research Center

Information Screen

Latitude (φ): 38° 24' 16" N

Longitude (λ): 27° 10' 03" E

Note: The Earth-Sun distance is given in "Astronomical Units (AU)". The average Earth-Sun distance is defined by the International Astronomical Union (IAU) as 149597870.700 km (IAU 2012, proposal titled B2). In the position calculations, the starting point of the azimuth value is assumed to be north, and the direction of increase is clockwise (towards the east). Time information is shown in Turkiye Region Time (TBZ=GMT+3). All quantities calculated on this page based on location are calculated for the location of the Ege University Observatory Application and Research Center telescopes. If a calculation is desired for another location and date, it is recommended to visit the page that opens when the "Time and Location Calculations" button on the main page is clicked. The semi-analytical planetary theory VSOP87 (Bretagnon and Francou, 1988, A&A, 202, 309) was adopted for position calculations. The equations used in the calculations are taken from the second edition of Jean Meeus's book "Astronomical Algorithms"*.

* Meeus, J. “Astronomical Algorithms”. Second edition 1998, Willmann-Bell, Inc.,Richmond, Virginia, USA.

Time Data

Date:

Local Time:

JD:

Local Sidereal Time:

Solar Data

α_☉ (h:m:s):

δ_☉ (d:m:s):

Azimuth:

Altitude:

Sunrise:

Noon:

Sunset:

Astronomical Twilight Starts:

Astronomik Twilight Ends:

Earth-Sun Distance:

Perihelion:

Aphelion:

Lunar Data

α_☾ (h:m:s):

δ_☾ (d:m:s):

Azimuth:

Altitude:

Age and Phase of the Moon:

Moonrise:

Meridian Passing:

Moonset:

Earth-Moon Distance:

Perigee:

Apogee:

Season Start Dates

Beginning of Spring:

Beginning of Summer:

Beginning of Autumn:

Beginning of Winter: