Note, the Date of the Day without Shadow in Indonesia

The Meteorology, Climatology and Geophysics Agency (BMKG) released a date of forecasting the day without a shadow (culmination) that would occur in Indonesia during September to October 2018. "The culmination phenomenon occurred in Indonesian regions," said BMKG Indonesia Public Relations Head Hary Djatmiko when contacted. Republika.co.id, Sunday (23/9).

He explained that the culmination was a phenomenon when the sun was in the highest position in the sky. As a result, he said, the shadow of an upright object would appear to 'disappear'.

This phenomenon occurs due to the earth's equatorial plane or the plane of the earth's rotation is not exactly coinciding with the ecliptic plane of the earth's revolution. So that the position of the sun from the earth will continue to change throughout the year between 23.50 LU and 23.50 LS. "This is a pseudo-daily motion of the sun," he said.

This phenomenon, he said, only occurs twice a year, namely March and September. He added, although the phenomenon occurred in all regions of the country, the time of occurrence was different.

He said, the main culmination in Sulawesi 2018 is Manado on September 20 2018 at 11.34 WITA, then Gorontalo happens on September 22 2018 at 11:40 WITA, Palu on September 25 2018 at 11.52 WITA, then Mamuju on September 30 2018 at 11.54 WITA, Makassar on 6 October 2018 at 11.50 WITA, and Kendari on 3 October 2018 at 11.39 WITA.

While in Kalimantan, he said, namely in Pontianak occurred 23 September 2018 at 11:35 WIB, Palangkaraya on 29 September 2018 at 11:14 WIB, Banjarmasin 1 October 2018 at 12.11 WITA, Tanjung Selor September 17 2018 at 12.05 WITA, Samarinda September 24 2018 at 12.03 WITA.

Then the main culmination in Sumatra region is Banda Aceh 10 September 2018 at 12.36 WIB, Medan 15 September 2018 at 12.20 WIB, Pekanbaru September 22 12.07 WIB, Padang September 25 2018 at 12.10 WIB, Bengkulu October 3, 2018 at 12.00 WIB, Jambi September 27 2018 at 11.56 WIB, Palembang 1 October 2018 at 11.50 WIB, Bandar Lampung 7 October 2018 at 11.46 WIB, Pangkal Pinang September 28 2018 at 11.46 WIB.


Then the main culmination in Bali and Nusa Tenggara such as Denpasar on 15 October 2018 at 12.05 WITA, Mataram 15 October 2018 at 12.01 WITA, and Kupang 20 October 2018 at 11:30 WITA. Then the main culmination in Maluku and Papua is Sofifi on 21 September 2018 at 12.23 WIT, Ambon 2 October 2018 at 12:16 WIT, Manokwari September 25, 2018 at 11.55 WIT, Jayapura 30 September 2018 at 11.27 WIT.