Stargazers across Brunei Darussalam were treated to a spectacular celestial display as the waning crescent Moon passed directly in front of Jupiter in a rare astronomical event known as a lunar occultation.
The phenomenon offered observers a rare opportunity to witness the solar system’s largest planet gradually disappear behind the Moon’s edge.
According to the Astronomical Society of Brunei Darussalam (PABD), the phenomenon occurs when the Earth, the Moon, and Jupiter align in a straight line in space. Observers tracking the event witnessed the precise stages of the lunar occultation, starting with Jupiter’s close approach as it neared the bright lunar limb at dawn.
This was followed by the ingress (entry), where the 38 per cent illuminated waning crescent Moon caused the giant planet to completely disappear behind its edge.
After being obscured for several minutes, the event concluded with the egress (exit), as Jupiter slowly reappeared on the other side of the Moon. Brunei Darussalam was positioned within the specific global viewing path, which also crossed Australia, Indonesia, India, and Malaysia.
The exact timing of the event varied slightly depending on the district. In Bandar Seri Begawan, the occultation lasted roughly 17.5 minutes, with Jupiter disappearing at 6.13am and reappearing at 6.30am. In Tutong, the event began at 6.10am and concluded at 6.33am.
Although the phenomenon occurred during daylight hours, Jupiter’s bright magnitude of -2.0 and its high position in the sky allowed it to be observed using binoculars and telescopes. Stargazers began tracking the approach during predawn hours, observing Jupiter as a bright star situated closely beneath the Moon.
The morning’s alignment is considered a rare astronomical event for local observers. The last visible lunar occultation of Jupiter in Brunei took place over a decade ago on August 6, 2016, and the next opportunity to witness this phenomenon from the Sultanate will not occur until April 12, 2038.
Local astrophotographers and members of the PABD documented the entire sequence from multiple locations across Brunei Darussalam. – James Kon
Courtesy of Borneo Bulletin