The 'ring of fire' visible during Thursday's annular solar eclipse in Bunsur, a village in Riau's Siak district. (Antara Photo/FB Anggoro)

Ring of Fire


DECEMBER 26, 2019

Indonesians in Siak near Riau, Singkawang in West Kalimantan and Nias in North Sumatra were able to observe the full annular solar eclipse on Thursday. An annular solar eclipse happens when the Moon covers the Sun's center and a "ring of fire" shows up on the outer edges of the Moon. It occurs once every two years. The last annular solar eclipse in Indonesia happened on Feb. 26, 2017.

Thursday's annular solar eclipse was observable from 25 cities in western and central parts of Indonesia – from Sinabang in Aceh to Putussibau in West Kalimantan. Jakartans were only able to see a partial (70 percent) solar eclipse.

According to the Meteorology, Climatology and Geophysics Agency (BMKG), the annular solar eclipse was observed for the longest time in Selat Panjang, Riau, for a total of 3 minutes and 38.9 seconds. 

Visitors observe the phenomenon of a partial solar eclipse through a telescope at Planetarium, Taman Ismail Marzuki (TIM), Cikini, Central Jakarta, on Thursday (26/12). (Antara Photo/Galih Pradipta)
A woman observes the partial solar eclipse at the planetarium in Cikini, Central Jakarta. (Antara Photo/Galih Pradipta)
Residents see the sun using binoculars at Surabaya
Surabaya residents try to get a glimpse of the solar eclipse at the Al Akbar Mosque. (Antara Photo/Didik Suhartono)
Tourists see the annular solar eclipse using solar glasses in Batam, Riau Islands, Wednesday (26/12). (Antara Photo/M N Kanwa)
Tourists watch the annular solar eclipse in Batam, Riau Islands. (Antara Photo/M. N. Kanwa)
Residents see the phenomenon of annular solar eclipses in part using x-ray films, in Medan, North Sumatra on Thursday (26/12). (Antara Photo/Irsan Muyadi)
Using X-ray film to watch the solar eclipse in Medan, North Sumatra. (Antara Photo/Irsan Muyadi)
BMKG officers from Tangerang Class I Geophysics Station prepared equipment to observe annular solar eclipse in Anyer, Serang, Banten, on Thursday (26/12). (Antara Photo / Weli Ayu Rejeki)
BMKG officers set up an observation station in Anyer, Banten. (Antara Photo/Weli Ayu Rejeki)
Muslims perform the Kusuf Sunah Prayer at the Istiqlal Mosque, Central Jakarta, on Thursday (26/12). (Antara Photo/Hafidz Mubarak)
Muslims perform the 'Kusuf' (solar eclipse prayer) at the Istiqlal Mosque in Central Jakarta. (Antara Photo/Hafidz Mubarak)
Collage photo of a partial ring solar eclipse from Pekanbaru, Riau on Thursday (26/12). (Antara Photo / Rony Muharrman)
A photo collage of the partial annular solar eclipse seen from Pekanbaru, Riau. (Antara Photo/Rony Muharrman)