Indian Astronomical Observatory, Hanle


IAO Sky Condition (Live):Day

IAO Sky Condition (Live):Nightsky

IAO Meteosat Image | Satellite Images

2m HCT Call for Proposals

HCT Schedule: 2018 Cycle1 (2018 January - April)

2018 Cycle1 Accepted Proposals

Information for Guest Observers

Guidelines for HCT time allocation and Data Policy

Important Notice For All Observers

  • 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: January 8, 2018