Evaluation of Devasthal site for optical astronomical observations

Details Evaluation of Devasthal site for optical astronomical observations Evaluation of Devasthal site for optical astronomical observations

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26as..144..349s&link_type=abstract

Astronomy and Astrophysics Supplement, v.144, p.349-362

Astronomy and Astrophysics

Astrophysics

11

Site Testing, Atmospheric Effects

Scientific paper

Based on an extensive site survey conducted during 1980-1990 in the Shivalik Hills of the Central Himalayan range, a promising site Devasthal has been identified. The longitude and latitude of Devasthal Peak are 79degr 41' E and 29degr 23' N. It is situated at an altitude of 2540 m and about 50 km by road from Nainital towards East. The surroundings of Devasthal are thinly populated and it is logistically well suited for establishing modern optical observational facilities. The prevailing wind direction at Devasthal is NW. For a large fraction of the night time, variation in the ambient temperature was less than a degree and wind speed was less than 10 m/s. During spectroscopic nights (> 200 in a year) relative humidity is less than 80% for about 70% of the time. During 1997 and 1998 seeing measurements using differential image motion techniques have been carried out close to ground at two locations namely Site 1 and Site 2 in Devasthal. Our observations for Site 1 carried over 88 nights yield a median seeing value of 1\farcs 4. For Devasthal Site 2 observations carried over 37 nights yield a median seeing value of 1\farcs 1. Devasthal Site 2 has therefore been selected for locating a modern 3 m optical telescope.

Affiliated with

Also associated with

No associations

Rating

Evaluation of Devasthal site for optical astronomical observations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Evaluation of Devasthal site for optical astronomical observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evaluation of Devasthal site for optical astronomical observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1387287