Sun halo spotted over eastern Singapore

SINGAPORE - Many in eastern Singapore who looked skywards at close to noon on Tuesday (Sept 22)  were treated to the sight of a large halo that ringed the sun.

The sun halo was spotted at locations such as Tampines, Simei and Ubi at around 12.05pm. Photos of the brilliant, multi-hued halo quickly made their way across messaging groups.

The optical phenomenon, which is not uncommon, typically occurs when there are thin clouds so high in the sky that they are made of ice crystals rather than water droplets.

The crystals act as tiny prisms, reflecting and refracting light in such a way that a ring is seen around the sun.

Readers of The Straits Times have asked if it is possible to forecast when something like this would happen. A less distinct halo was seen about three weeks ago, near the Merlion.

The National Environment Agency said previously that it is difficult to forecast the precise location of these ice crystals in the atmosphere, which would determine where the halo can be sighted.

It also said that while it is safe to look at the halo itself with the naked eye, it is dangerous to look at the sun directly without proper protection.


The sun halo seen from Guillemard Road on Sept 22, 2020, at about 12.15pm. ST PHOTO: DESMOND WEE


The sun halo as seen from Simei at around 12.05pm on Sept 22,2020. ST PHOTO: BENJAMIN SEETOR


The sun halo as seen from Simei at around 12.05pm on Sept 22,2020. ST PHOTO: BENJAMIN SEETOR


The sun halo above Tampines Central Park at 12.14pm. ST PHOTO: LIM YAOHUI


Mr Daniel Ong taking a photo of the sun halo above Tampines Central Park on Sept 22, 2020. ST PHOTO: LIM YAOHUI


The sun halo as seen from Changi Airport around noon on Sept 22, 2020. ST PHOTO: ONG WEE JIN


The sun halo as seen from Changi Airport around noon on Sept 22, 2020. ST PHOTO: ONG WEE JIN


The sun halo as seen from Gardens by the Bay on Sept 22, 2020. PHOTO: GARDENS BY THE BAY


The sun halo as seen from Gardens by the Bay on Sept 22, 2020. PHOTO: GARDENS BY THE BAY


The sun halo as seen from Gardens by the Bay on Sept 22, 2020. PHOTO: GARDENS BY THE BAY


The sun halo as seen from the Tuas area on Sept 22, 2020. PHOTO: SUNNY LIM


The sun halo as seen from Midview City on Sept 22, 2020. PHOTO: CYNN


The sun halo as seen from Kelantan Lane on Sept 22, 2020. PHOTO: JACKSON OH


The sun halo as seen from Marine Parade on Sept 22, 2020. PHOTO: APOORVA BAJJ