| ☰ Menu | Sun and Moon |
|
|
In addition, photographers make use of the special cases of twilight when the sky illuminates the surroundings either blue or orange/reddish golden, named the Blue or the Golden hour, respectively. See figure below for day period definitions as a function of solar elevation angle.
The twilight hours are spectacular on Svalbard due to the open arctic landscape with snow covered mountain tops illuminated by the Sun at low elevation angles. The latter is especially captured by the famous Norwegian painter Kåre Tveter. It is known to Svalbard Indians as "Tveter lys".
Note that our most sensitive cameras are turned OFF if the solar elevation becomes higher than -10 degrees to protect the detectors.
- The solar and lunar altitude angle as a function of UT time.
- The UT time (T1 and T2) the sun crosses the -10 degree altitude angle.
- The current minimum and maximum solar altitude with UT time.
- The current moon phase.
- The current minimum and maximum lunar altitude with UT time.
- The solar azimuth (fixed) and lunar azimuth (variable).
During winter, local time is UT+1 hour.
Note that Dawn and Dusk correspond to 8 deg. depression angle and all times are given in UTC (Coordinated Universial Time).
These tables are very useful for planning future optical campaigns.
Current Season: 2022/2023