China's first international dark sky community, Xichong Community, in the southern Chinese metropolis of Shenzhen, is a reminder of the joys of a charming starry night.

Mei Lin, a researcher who has been working at the Shenzhen Astronomical Observatory since its construction 15 years ago, is the mastermind behind the dark sky community in Xichong, which centers around the observatory.

Xichong Community has unique conditions for tourism and observing stars. However, urban development, artificial light used at the beach, outdoor advertising billboards and fishing lights have worsened the light pollution in the area. The number of stars that are visible has been reduced compared to that when the observatory was established, he said.

The increase in light pollution has inhibited scientific research and popular science work in the observatory.

In April 2021, Mei proposed building the dark sky community, aiming to protect wildlife habitats by reducing light pollution, while satisfying the well-being of local neighborhoods.

"In terms of human beings, light pollution has a great impact on our physical and mental health. Secondly, it will also affect our sight. Just like we will feel stinging when we look at bright blue and white light," said Mei.

Mei's proposal was supported by Shenzhen Dapeng New District. The local authorities have issued lighting management measures and channeled funds to rectify municipal and commercial lighting.

Over a single year, lighting facilities in the community were upgraded, and environmental standards for the dark sky community were formulated.

In April this year, the Xichong Community was certified as an International Dark Sky Community, the first of its kind in China.

The recognition by the International Dark-Sky Association marks an important milestone in Shenzhen's efforts to achieve equilibrium between urban development and dark sky protection.

"Astronomical observation and astronomical related business are my job. When observing the sky with binoculars, I don't want to be bothered by light pollution. So I began to have this idea. Some parents just want to show their children the stars and support my proposal. Dealing with light pollution has gradually developed into a common request of the public. Later, many authorities including the urban management bureau and the ecological environment bureau showed support to us, and suddenly, it became a joint goal for the public society and the local government," Mei said.