Why in the News?

Expert astro-photographers and astronomers have gathered at the Hanle Dark Sky Reserve from for the second Star Party.

Star Party and Its Details

The Star Party at the Hanle Dark Sky Reserve is a gathering of amateur astronomers and astro-photographers who travel to Hanle to observe and capture celestial phenomena.
It was hosted by the Indian Institute of Astrophysics (IIA) from and attended by over 45 astronomy enthusiasts from across India.
Participants brought their own telescopes and cameras to capture unique celestial events, including faint galaxies, the Zodiacal Light, and the rare sight of Venus casting a shadow.

The HDSR is a designated area in Changthang region of eastern Ladakh created to control man-made light pollution and protect the naturally dark night skies.
It spans approximately 1,073 square kilometers and is home to the Indian Astronomical Observatory, operated by the Indian Institute of Astrophysics (IIA).
Established to promote astronomy and astrophotography, it offers some of the darkest skies in India, ideal for astronomical research.
Hanley is also the home to second-highest optical telescope in the world, established in 2001 by IIA.

High Altitude: Hanle is situated at a high altitude, providing clearer skies with minimal atmospheric interference.
Minimal Light Pollution: The region has low light pollution, which makes it perfect for observing faint celestial objects.
Dry Climate: The dry weather in the region contributes to excellent visibility, reducing the impact of humidity on astronomical observations.

Astrophotography and Research: The dark skies allow for detailed observation of celestial phenomena and astrophotography, attracting enthusiasts and researchers.
Astro-Tourism: The reserve fosters astro-tourism, boosting the local economy by creating jobs for guides and supporting infrastructure.
Preservation of Night Skies: It plays a crucial role in preserving the natural darkness of the sky, curbing light pollution in the region.
International Attention: The reserve has attracted amateur and professional astronomers from across India and beyond, making it a hub for astronomical events.

PYQ:

[2018] Consider the following phenomena:

Which of the above is/are the prediction/predictions of Albert Einstein’s General Theory of Relativity, often discussed in media?

(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3