UAE Experts: Telescope Moon-Sighting on Feb 17 Could Pose Risks
UAE astronomers have raised alerts regarding the risks associated with moon-sighting on February 17. The day is significant as it coincides with a solar eclipse and marks the moon’s proximity to the sun. Observing the moon using telescopes or binoculars without appropriate solar filters can result in serious eye damage.
Risks of Telescope Moon-Sighting on February 17
The International Astronomy Centre (IAC), located in Abu Dhabi, emphasizes that direct observation of the sun through optical instruments can lead to temporary or permanent vision impairment. This warning aligns with the potential hazards presented by the solar eclipse on the same day, according to the IAC.
Angular Separation: A Dangerous Close Encounter
On February 17, observers in Riyadh will notice that the angular separation between the moon and sun will be just one degree at sunset. Khadijah Al Hariri, Operations Manager at Dubai Astronomy Group, affirmed that even though the solar eclipse occurs earlier, the moon’s close position to the sun remains problematic for sighting efforts.
- Angular Separation: The distance between the sun and moon’s centers will be about half a degree, increasing the risk.
- Dangers to Equipment: Any telescope aimed at the moon may inadvertently include the sun in its field of view.
- Health Risks: Observers could face serious consequences, including the risk of blindness.
Astronomically Impractical Observations
The IAC has stated that attempting to observe the crescent moon on February 17 is not only dangerous but also an impractical endeavor. Observers waiting for the sun to set will find that the moon’s lower edge may set shortly, leaving no crescent to sight.
Oman was the first GCC nation to announce Ramadan start dates, noting similar impracticalities. Other countries soon followed, declaring February 19 as the beginning of Ramadan.
Safety Advisory for the Public
The IAC issued its safety advisory to highlight the importance of adhering to safe observation practices. They caution against using telescopes, binoculars, or other optical devices lacking certified solar filters. Professional observatories utilize specialized equipment and adhere to stringent safety protocols.
While the IAC has raised awareness regarding these dangers, they clarified that they do not have the authority to declare the official start of lunar months. Their focus remains on promoting scientific understanding related to celestial observations.
