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Highest and biggest observatory of Thailand available now in Chiangmai

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By January ,22nd Her Royal Highness Princess Maha Chakri Sirindhorn came to preside over the official opening ceremony of National Observatory at Doi Intanon, Amphur Jom Thong, Chingmai Province.

The Thai National Observatory is the main facility of the National Astronomical Research Institute of Thailand, located at Km. 44 on the highest mountain (Doi Inthanon) in the Province of Chiang Mai, which is also renowned for the superb climate and tourist attraction. At 2,457 meters above the mean sea level, the observatory has superb seeing conditions suitable for advanced research in Astronomy and Astrophysics. TNO is set to become one of Asia’s most advanced facilities in optical astronomy.

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The Observatory houses a 2.4-meter reflecting telescope with an alt-azimuth drive system and a Ritchey-Chretien optical system.. The drive system has been synchronized with automatic control of the dome structure. The telescope is manufactured at EOST in Tucson, Arizona, USA. The 2.5 m diameter primary mirror has been fabricated and undergone fine polishing at LZOS facility in Russia. The observatory will therefore play a significant role in supporting cutting edge research and international collaboration.



Optical Telescopes and Detectors Available

1. A 2.4–meter Ritchey-Chretien alt-alzimuth drive reflectingTelescope

2. A 0.5-meter Schmidt-Cassegrain Robotic Telescope

3. A 2kx2k CCD Photometer with BVRI filter system

4. A research-grade 4kx4k CCD Photometer with BVRI filter system

5. A high Resolution Echelle Spectrograph


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Regional Observatories for the Public

In addition to the main National Observatory at Doi Inthanon, NARIT has been committed to establish 5 more regional observatories scattered through the five geographical zones of the country. These observatories, though modest in scale comparing to the main National Observatory, will allow the public in the areas and nearby districts to gain better access to information in astronomy and space technology. Consequently, this will strengthen the infrastructure of the nation’s capacity in astronomy and space technology and will contribute to capacity building in education and even research in the field in the long run. It is speculated that through these regional observatories, collaboration and cooperation between the well established in big cities and the rural ones will substantialize.

The five regional observatories will be set up in Nakorn Ratchasima, Khon Kaen, Chachoengsao, Pitsanuloke and Songkhla, representing the lower north eastern, the upper north eastern, the eastern, the lower northern and the southern parts of Thailand respectively. Each of the so-mentioned observatory is equipped with a 0.5 meter telescope, a CCD camera, a spectrograph. Most of them are expected to operate in their full form not later than 2015.

The already existing observatory in the North, Sirindhorn Observatory, became a network of NARIT  in early 2009.

**Noted : My friends experienced this place and he complained  no observatory officer available there to provide knowledge and service to public. Just only 2 security guards standing by at the gate only for his last visit in Febuary 2013.  The only thing they want is Official request letter for visiting from the authorities.

NARIT Observatory Network throughout the country



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