Aryabhatta Research Institute of Observational Sciences (ARIES) had set up a 1.3 m telescope at Devasthal, Nainital, India in the year 2010. Country’s largest roll-off roof was indigenously designed, fabricated and installed on top of a building (17 × 8 m) for housing 1.3 m telescope. Telescope was supplied by M/s DFM Engineering Inc., USA to ARIES and was installed in the building with unique roll-off roof to protect it from external environment. Roll-off roof was designed and fabricated considering various parameters and available manpower and resources at ARIES. This paper presents mechanical development work, simple but distinct design approach and innovative selection of materials to economically manufacture roll-off roof of large size (8 × 8 × 4 m) at hilly remote site of Devasthal situated in Central Himalayan region. All operations in the roof viz. opening of shutters and rolling of roof were motorized to facilitate observers during night observations.
[1]
Wahab Uddin,et al.
Seeing and microthermal measurements near Devasthal top
,
2001
.
[2]
Michael H. Williamson,et al.
Control of the TSU 2-m automatic telescope
,
2004,
SPIE Astronomical Telescopes + Instrumentation.
[3]
C. S. Stalin,et al.
Microthermal measurements of surface layer seeing at Devasthal site
,
1999
.
[4]
Linda Lopez,et al.
A Roll-off Roof Observatory in New Boston, New Hampshire, USA
,
1996
.
[5]
Dennis Allen.
A Practical Roll-off Roof Observatory in Michigan, USA
,
1996
.
[6]
B. Kumar,et al.
The new 130-cm optical telescope at Devasthal, Nainital
,
2011
.