TODAY, There's A Phenomenon of Days Without A Shadow, Here's the Time of the Occurrence

TRIBUNBATAM.id, BATAM -  These are the following of a complete schedule of the phenomenon of No Shadow Day in Indonesia.

The phenomenon of No Shadow Day is known have started since September and continues until this October.

Several capitals that have already received it this month include Palembang (1 October 2019), Banjarmasin (2 October 2019), Bengkulu, Ambon and Kendari (3 October 2019), Makassar (6 October 2019) and Bandar Lampung (7 October 2019).

Today, on October 9, 2019, the main culmination of a day without a shadow will occur in Central Jakarta at 11:40.05 WIB and Serang at 11.42.47 WIB. 

The schedule for the main culmination times in the next provincial capitals are:

Bandung on October 11, 2019 at 11.36.27 WIB

Semarang on 11 October 2019 at 11:25.06 WIB

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Surabaya on October 12, 2019 at 11:15.46 WIB

Yogyakarta on October 13, 2019 at 11.24.53 WIB

Denpasar on October 16, 2019 at 12.04.49 WITA

Mataram on October 16, 2019 at 12.01.16 WITA

Kupang on October 20, 2019 at 11.30.34 WITA

For the main culmination in other cities, you can look at the BMKG link. 

Amateur astronomer, Marufin Sudibyo, explained that a day without a shadow is a day for a particular place where an object that stands upright will lose its shadow when the Sun reaches its culmination point above (istiwa') or in transit conditions.

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Reporting from the BMKG press release, this phenomenon occurs because the equatorial field or rotation of the Earth is not a place to coincide with the ecliptic field or the revolution of the Earth.