Astrosat Picture of the Month #016

January 2019: The AstroSat Picture of the Month for January 2019 shows the 97 minute long orbit of AstroSat around the Earth. This orbit is roughly equatorial (top right), inclined at around 6 degrees to it (top left). This results in each orbit being slightly displaced from the previous one (bottom). Picture credit: Leo Jackson […]

Astrosat Picture of the Month #015

December 2018: The AstroSat Picture of the Month for December 2018 presents the Ultra Violet Imaging Telescope itself. A schematic of the design of the UVIT is shown on the top left, and a photograph of the two UVIT telescopes is in the top right. An image of the fully assembled UVIT, containing both telescopes […]

Astrosat Picture of the Month #014

November 2018: The AstroSat Picture of the Month for November 2018 presents false colour image of the Globular Cluster NGC 288 in the ultraviolet taken by UVIT. The near-UV emission the stars are in yellow and the far-UV emission is in white. It is clear that the UVIT image shows only the hot stars as […]

Astrosat Picture of the Month #013

September 2018: The AstroSat Picture of the Month for October 2018 presents the false-color ultraviolet images of NGC6302 (Butterfly Nebula) using ASTROSAT. On the left is a cartoon showing the full extent of the nebula with far-ultraviolet represented in blue. The picture on the right shows the zoomed-in view of the brightest part of the […]

Astrosat Picture of the Month #012

September 2018: The AstroSat Picture of the Month for September 2018 is a photograph of AstroSat itself. The top panel has two photographs of the fully assembled AstroSat. The bottom panel is an artists’s conception of the observatory in space. Can you identify each of the five telescopes in the top panel photographs? Pic Credit: […]

Astrosat Picture of the Month #011

August 2018: The AstroSat Picture of the Month for August 2018 is an X-ray image of the Tycho Supernova Remnant in the 0.8-2.0 nanometres (0.6-1.6 keV) range, made by the Soft X-ray Telescope on board AstroSat. The supernova remnant is roughly 8 arcminutes big (3.7 times smaller than the full moon in the sky) and […]

Astrosat Picture of the Month #010

July 2018: The AstroSat Picture of the Month for July 2018 is an image of the central part of the merging galaxy NGC 7252. This image has been obtained by dividing the NUV by the FUV image, pixel by pixel, indicating ‘ultraviolet colour’. The outer redder parts are where the stars older than 400 million […]

Astrosat Picture of the Month #009

June 2018: The AstroSat Picture of the Month for June 2018 is the ultraviolet image of the merging galaxy cluster Abell 2256, more than 800 million light years away. This cluster contains galaxies spread over a large area, and we have zoomed in on six of these galaxies to show you their ultraviolet images. The […]

Astrosat Picture of the Month #008

May 2018: The AstroSat Picture of the Month for May 2018 is the X-ray data from the Crab Nebula, using the ASTROSAT. The left panel shows the new result. One rotation period of the Crab Pulsar, of 33 milliseconds, is represented as the phase going from 0.0 to 1.0 and is repeated once more, from […]

Astrosat Picture of the Month #007

April 2018: The AstroSat Picture of the Month for April 2018 is the ultra-violet image of the Jellyfish Galaxy JO201, using ASTROSAT. This image shows hot young stars formed in the tentacles, visible to the left of the parent galaxy. These have been formed from the gas stripped from JO201 as it falls through the […]