Indian Astronomical Observatory, Hanle


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IAO Sky Condition (Live):Nightsky

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2m HCT Call for Proposals

HCT Schedule: 2019 Cycle1 (2019 January - April)

Information for Guest Observers

Guidelines for HCT time allocation and Data Policy

Important Notice For All Observers

  • HCT Annual Maintenance is scheduled during 2019 August 08 - August 23. The telescope will not be available for observations during this period.

  • To ensure the safety of components, the telescope will not be operated when the ambient temperature is below -20 deg C.
    The dome shall also be closed at this temperature limit.

  • The high resolution spectrograph (HESP) is now available for use. Please use the revised proposal form that includes HESP requirements.


    Indian Astronomical Observatory
    Indian Institute of Astrophysics
    Post Box No. 100, Leh-Ladakh 194 101 INDIA
    Tel : 91 (01982) 252195, 253104

    Last updated on: March 25, 2019