Indian Institute of Astrophysics भारतीय खगोलभौतिकी संस्थान

The official page of the Indian Institute of Astrophysics (IIA), located in Koramangala, Bengaluru. A 1.3 m telescope named after Prof. J. C.

The Indian Institute of Astrophysics traces its origin to William Petrie, an enlightened officer of the East India Company, who in 1786 began observations of the meridian transit of stars from Madras, mainly for maritime purposes. This in a short period of ten years, blossomed into the Madras Observatory. The Madras Observatory, especially under the leadership of N.R. Pogson, made tremendous progr

ess, diversifying its focus to the astronomical studies of planets, asteroids, the sun, solar eclipses and variable stars. Teams from the Observatory were among the first to observe the Helium line at the solar eclipse in 1868, visible from Guntur in South India. Around the end of the 19th century, the Madras Observatory was shifted to Kodaikanal. The Kodaikanal Observatory became famous in
its own right with pioneering contributions such
as the Evershed Effect discovered in 1909. The
work at Kodaikanal continues without any break
even today and the observatory holds an archive of spectroheliograms which are recorded daily. In 1971, the organization became an autonomous academic institution devoted to astronomy, astrophysics and allied topics, under the directorship of Professor M.K.Vainu Bappu. It is now a premier Institute in the country specialized in Astrophysics and it is fully funded by the Department of Science and Technology, Government of India. Several new major facilities have been added
during the last four and half decades. They include: the 2.34 m Vainu Bappu Telescope (VBT) at Kavalur, the 2-m Himalayan Chandra Telescope (HCT) at Hanle and the Radio Heliograph at Gauribidanur. Recent initiatives at Hanle include: commissioning of a High Altitude Gamma Ray (HAGAR) telescope array and setting up of a Major Atmospheric Cerenkov Experiment (MACE) telescope by BARC jointly with TIFR and IIA. Bhattacharyya was installed at Kavalur and commissioned in 2014. The Ultra-Violet Imaging Telescope (UVIT) system, developed by the Institute jointly with national laboratories, was calibrated in a specially established facility, the M.G.K.Menon Laboratory, at the Institute’s campus in Hosakote. The system is
integrated on to the ASTROSAT satellite which is put into the orbit by ISRO on 28 September, 2015.

भारतीय ताराभौतिकी संस्थान देश का एक प्रमुख संस्थान है, जो खगोल ताराभौतिकी एवं संबंधित भौतिकी में शोधकार्य को समर्पित है। इसका उद्गम मद्रास (चेन्नै) में 1786 में स्थापित की गई एक निजी वेधशाला से जुड़ा है, जो वर्ष 1792 में नुंगम्बाकम में मद्रास वेधशाला के रूप में कार्यशील हुई। वर्ष 1899 में इस वेधशाला को कोडैकनाल में स्थानांतरित किया गया। 1971 में कोडैकनाल वेधशाला ने एक स्वायत्त संस्था भारतीय ताराभौतिकी संस्थान का रूप ले लिया। संस्थान का मुख्यालय कोरमंगला, बेंगलूर में अपने नए परिसर में वर्ष 1975 में स्थानांतरित हो गया। विज्ञान एवं प्रौद्योगिकी विभाग के अवलंब से संचालित यह संस्थान आज देश में खगोल एवं भौतिकी में शोध एवं शिक्षा का एक प्रमुख केन्द्र बन गया है। संस्थान की प्रमुख प्रेक्षण सुविधायें कोडैकनाल, कावलूर, गौरीबिदनूर एवं हान्ले में स्थापित हैं।
एक शताब्दी से भी अधिक समय से कोडैकनाल वेधशाला प्रेक्षणात्मक सौर एवं वायुमंडलीय भौतिकी में सक्रियता का मुख्य केन्द्र रही है। कावलूर स्थित वेणुबप्पू वेधशाला 1960 के दशक से रात्रिकालीन खगोल की मुख्य प्रकाशिक वेधशाला रही है। यहां अनेक दूरदर्शी कार्यशील हैं जिनमें प्रमुख हैं - 2.34 मीटर वेणुबप्पू दूरदर्शी। गौरीबिदनूर रेडियो वेधशाला में एक डेकामीटर तरंग रेडियो दूरदर्शी विन्यास एवं रेडियो होलियोग्राफ स्थापित है।
दक्षिण पूर्व लद्दाख के हान्ले नामक स्थान में स्थापित की गई नई उच्च उत्तुंग भारतीय खगोल वेधशाला ने संस्थान की रात्रिकालीन खगोल संबंधी सुविधाओं में वृद्धि की है। यहां वर्ष 2001 से 2 मीटर व्यास का हिमालयन चंद्रा दूरदर्शी कार्यरत है। सात इकाइयों वाला एक उत्तुंग गामा किरण दूरदर्शी भी हान्ले में हाल ही में स्थापित किया गया है।
बेंगलूर परिसर में एक विशाल पुस्तकालय, संगणक केन्द्र, भौतिकी एवं इलेक्ट्रॉनिकी प्रयोगशालायें, प्रकाशिकी तथा यांत्रिक कार्यशालायें विद्यमान हैं जो संस्थान के सक्रिय उपकरण विकास कार्यक्रम को ठोस अवलंब देती है।

Venus-Jupiter conjunction on 9 June 2026

06/06/2026

On 9th June 2026 evening, the planets Venus and Jupiter will appear very close to each other, just 1.5 degrees apart, in the western skies!

Check out the video for more info and our 3 challenges!

https://www.youtube.com/shorts/M2EPRckt4tg

Department of Science and Technology, Government of India
Asi Poec ASI POEC
Annapurni Subramaniam
Cosmos Mysuru

Venus-Jupiter conjunction on 9 June 2026 On 9th June 2026, we can witness the planets Venus and Jupiter appe...

05/06/2026

It is time for the 4th HDSR Star Party!

Mark your calendars from 7 - 12 September 2026 to experience the pristine night skies of Hanle.

Applications out soon. Watch this space for more information.

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Welcome to Ladakh Astro Week 2026 - by Dawa Dolkar of Indian Astronomical Observatory, IIA (Ladakhi)

19/05/2026

Dawa Dolkar Yangdol of Indian Astronomical Observatory, Hanle, IIA welcomes everyone to the Ladakh Astro Week 2026, to be held from 20-26 May (in Ladakhi)

https://youtube.com/watch?v=7vRa-FixWuw

Department of Science and Technology, Government of India
Annapurni Subramaniam
Dorje Angchuk
Ladakh Tourism

Welcome to Ladakh Astro Week 2026 - by Dawa Dolkar of Indian Astronomical Observatory, IIA (Ladakhi) Ladakh Astro Week 2026 will be held during 20-26 May. Dawa Dolkar o...

Welcome to Ladakh Astro Week 2026 - by Tsewang Yangdol of Indian Astronomical Observatory, IIA

19/05/2026

Tsewang Yangdol of Indian Astronomical Observatory, Hanle, IIA welcomes everyone to the Ladakh Astro Week 2026, to be held from 20-26 May!

https://youtube.com/watch?v=-XEAg2jwA68

Department of Science and Technology, Government of India
Annapurni Subramaniam
Ladakh Tourism
Dorje Angchuk

Welcome to Ladakh Astro Week 2026 - by Tsewang Yangdol of Indian Astronomical Observatory, IIA Ladakh Astro Week 2026 will be held during 20-26 May. Tsewang Yangd...

Director, IIA welcomes everyone to the Ladakh Astro Week 2026

19/05/2026

Director, IIA, Prof Annapurni Subramaniam welcomes everyone to the Ladakh Astro Week 2026, to be held from 20-26 May!

https://youtube.com/watch?v=mJ8PapS0rGk

Department of Science and Technology, Government of India
Annapurni Subramaniam
Ladakh Tourism
Dorje Angchuk

Director, IIA welcomes everyone to the Ladakh Astro Week 2026 Ladakh Astro Week 2026 will be held during 20-26 May. Prof. Annapu...

Photos from Indian Institute of Astrophysics भारतीय खगोलभौतिकी संस्थान's post

18/05/2026

We invite everyone from or visiting to Ladakh Astro Week from 20-26 May!

Daily events at Leh and 1-day events at Kurbathang, Lamayuru, Padum, Nubra, Drass & Hanle.

Speakers from across India will give public talks on astronomy in English & Ladakhi too!

👉 Office of Asst Director Tourism, Leh (20-26 May)
👉 Lamayuru Monastery, Sham (21 May)
👉 Sand Dunes Hunder, Nubra (22 May)
👉 Tourist Bungalow, Padum Zanskar (23 May)
👉 Purig Guest House, Kurbathang, Kargil (24 May)
👉 Tourist Bungalow, Drass (25 May)
👉 Punguk Community Hall, Hanle (26 May)

Free entry, all are welcome!

Department of Science and Technology, Government of India
Dr Jitendra Singh
Ladakh Tourism
Dorje Angchuk
Annapurni Subramaniam

06/05/2026

Deadline Extended till 11 May 2026!!

.. for applying to the Indian Institute of Astrophysics Ph.D. Program for August 2026.

Website: https://iiap.res.in/phd_2026/

04/05/2026

*Indian Institute of Astrophysics invites applications for Postdoctoral Fellowships!*

🗓️ Deadline: 2 June 2026
🔗 Website: https://www.iiap.res.in/post_doc/?q=Home

Department of Science and Technology, Government of India

Submit your astrophotographs for exhibits at ASI 2026 and LAF 2026

04/05/2026

Call for submissions: Astrophotography Exhibition at Ladakh Astronomy Festival (20-26 May)

Submission Form and Guidelines: https://forms.gle/kSuVE3n37zqkx4GTA

Department of Science and Technology, Government of India
Dr Jitendra Singh
Annapurni Subramaniam
Dorje Angchuk
Ladakh Tourism

Submit your astrophotographs for exhibits at ASI 2026 and LAF 2026 The Annual Meeting of the Astronomical Society of India (ASI) will be held at IIT Guwahati between 15-19 May 2026. This is being organised by IITG in collaboration with the ASI. As a part of the ASI meeting, astrophotography exhibitions will be organised at the Guwahati Planetarium and the Guwahati....

01/05/2026

Reminder: Deadline for applying to the Indian Institute of Astrophysics Ph.D. Program for August 2026 is 5 May!

Website: https://www.iiap.res.in/phd_2026/

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2nd Block Koramangala, Sarjapura Road
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Indian Institute of Astrophysics भारतीय खगोलभौतिकी संस्थान

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