Astrosat is India's first dedicated multi-wavelength space observatory. It was launched on a PSLV-XL on 28 September 2015.

Astrosat is a multi-wavelength astronomy mission on an IRS-class satellite into a near-Earth, equatorial orbit.

The five instruments on board cover the visible (320–530 nm), near UV (180–300 nm), far UV (130–180 nm), soft X-ray (0.3–8 keV and 2–10 keV) and hard X-ray (3–80 keV and 10–150 keV) regions of the electromagnetic spectrum.

Shot of CRAB PULSAR from astrosat

ASTROSAT, captures the rare phenomenon of a small, 6-billion-year-old "vampire" star "preying" on a bigger celestial body.

Scientists say the smaller star, also called a “blue straggler”, feeds off its companion star by sucking out its mass and energy, causing its eventual death.

The stars are part of a “cluster” called NGC 188 formed some 6 billion years ago, and are much older than the sun, which is believed to have come into existence nearly 4.5 billion years ago.

The study was recently published in Astrophysical Journal Letters by a team of scientists from IIA, Inter-University Centre of Astronomy and Astrophysics (IUCAA), Tata Institute of Fundamental Research (TIFR), Indian Space Research Organisation (ISRO) and the Canadian Space Agency (CSA).

This is the pic of crab nebula of a supernova remnant (exploded star) taken from Taurus constellation, located 6500 light years away as recorded by Astrosat

AstroSat has succeeded in measuring X-ray polarization of the Crab Nebula’s pulsar, producing data that might challenge scientists’ understanding of supernovae and their magnetic fields.

The results, published on 6 November 2017 in Nature Astronomy, came from a study of the pulsar’s X-ray emissions during its different rotation phases. Using AstroSat’s CZT Imager (CZTI), scientists found that X-rays were emitted an unexpected times, i.e., during the pulsar’s “off-pulse” period.

How is the one we have been seeing different..!

This picture shows newly formed star clusters in the dwarf galaxy Wolf-Lundmark-Melotte (WLM), imaged by the Ultra Violet Imaging Telescope on board the ASTROSAT.

The Witch's Broom or the Western Veil, is a part of a large Supernova Remnant called the Cygnus Loop or the Veil Nebula. Extending over 3 degrees in the sky (compared to the full moon which is 0.5 degrees), and located in the northern constellation of Cygnus, the entire Cygnus Loop is 75 light years in diameter, and around 1470 light years away. Though the nebula is one of the most beautiful and colorful objects in the sky, it is quite faint due to its large angular size and a big telescope in a dark sky is needed to fully appreciate it in all its glory.

Different parts of this object were discovered separately and given different names. The Witch's Broom, or NGC 6960 is a part of this gigantic Supernova Remnant. This remnant is the result of a very massive star exploding sometime between 3000 and 6000 B.C. The shock waves of this explosion, as they blast through the surrounding gas, produce emission in all bands of light, including radio, visible, ultra-violet and X-rays. Since the expanding shells are extremely thin and is almost transparent to background optical light, only the edges are bright enough to see. This is why we see fine filaments or ropes that resemble a broom.

The Near Ultra-Violet and Far Ultra-Violet images of the Witch's Broom captured by AstroSat's UVIT show emission from these delicate glowing filaments, primarily from ionized Silicon, Carbon, Iron and Helium. Astronomers are using this data to study the chemicals in this gas, and how they are heated by the shock of the explosion.

The AstroSat Picture is the ultra-violet images of NGC 40 using ASTROSAT. The pink-red part is the gas cloud NGC 40, also known as the Bow-Tie nebula, which is being illuminated by its central hot star. The new discovery is that of the halo region surrounding the nebula. It is observed to be glowing in diffuse, ultra-violet light and shown as golden here in this false-colour image.

The AstroSat Picture are the Near-UV (left) and Far-UV (right) images of the Globular Cluster NGC 1851, taken by UVIT on board the ASTROSAT. The FUV image shows only the hottest stars in the cluster.

Another pic from astrosat

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Good thread. India is succeeding despite it's huge population because it is a natural homogeneous union. who knows what could be happening if Pakistan is still part of the country? they will be fighting terrorism with their budget like the zoo.

Biafra g'enwe mmeri

Wow big up to India, it's only patriotism that can drive a nation forward. The universe is such a beautiful place can't wait for the space odyssey to begin

India is advancing their space technology.... What do we do here?




We contract it put!

This Picture is of the ultra-violet image of NGC 7252 or the 'Atoms for Peace' galaxy, using ASTROSAT. The two tails of gas and stars ripped out due to the merger of two galaxies can be seen in the image on the left (going upwards and also downwards and right). The central part, which hosts filaments and loops, is magnified and shown on the right.

An artist impression of the flare observed on our nearest exoplanet hosting neighbor-Proxima Centauri.

Zoom in shows the light curves of the flare observed by our team on Proxima Centauri with the Astrosat SXT in 0.3-3.0 keV (top panel), Chandra LETG zeroth order in 0.1-12.0 keV (middle panel) and HST FUV in 120-170nm (bottom panel) on 31 May 2017.

To learn more about the possibility of life on Proxima Centuari b, a team of scientists came together to observe the Proxima Centauri system using both space-based and ground-based telescopes.

On 31 May 2017, three space-based observatories –

India’s Astrosat,

NASA’s Chandra and

NASA’s and ESA’s Hubble Space Telescope,

along with a ground-based observatory High Accuracy Radial velocity Planet Searcher (HARPS),

participated in this exciting exercise and have detected a coronal explosion -- an unusually large release of plasma and magnetic field from a star – in Proxima Centauri.

SALT & ASTROSAT Observations of Magnetic Cataclysmic Variables

Seeing a galaxy in different lights

Picture Captured by Indian Mangalyaan, view of Mars on Sept. 28, 2014.

It shows active dust storms in the Red Planet's northern hemisphere and is the first full view of Mars from the probe

Picture taken by Indian mars orbiter mission MOM


Phobos, one of the two natural satellites of Mars silhouetted against the Martian surface captured by MOM.

MoM View of a Martian canyon

Region around Comas Sola crater was taken by Mars color camera of MOM

Martian clouds as seen by MoM orbiter

Spectacular 3D view of Arsia Mons, a huge volcano on Mars, taken by camera on India’s Mars Orbiter Mission (MOM).

Pital crater is an impact crater located in Ophir Planum region of Mars, which is located in the eastern part of Valles Marineris region. This image is taken by Mars Color Camera (MCC) on 23-04-2015 at a spatial resolution of ~42 m from an altitude of 808 km.


Valles Marineris is often called the "Grand Canyon of Mars." It spans about as wide as the entire United States.

Very nice.

Spectacular wind streaks observed by MOM on Mars

Martian (water vapour) clouds as seen by MOM around arsia mons , Mars.

Mars north pole view from MOM

Tyrrhenus Mons - the ancient martian volcano and its timeworn gullies view from MOM