Astronomy Picture of the Day . Vela Supernova Remnant in Optical . ... 13.06.1996 . ... Today the Vela supernova remnant marks the position of a relatively close and recent explosion in our Galaxy. ... As gas flies away from the detonated star , it reacts with the interstellar medium , knocking away closely held electrons from even heavy elements . ... Publications with keywords: Vela - supernova remnant - supernova . Publications with words: Vela - supernova remnant - supernova . ...

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... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. June 13, 1996 . Vela Supernova Remnant in Optical . ... Today the Vela supernova remnant marks the position of a relatively close and recent explosion in our Galaxy . ... As gas flies away from the detonated star , it reacts with the interstellar medium , knocking away closely held electrons from even heavy elements . ... About APOD | ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Comet C/2011 L4 (PANSTARRS) on 2012 August 9th. ... A new comet, called C/2011 L4 (PANSTARRS), is expected to become visible for a few weeks from approximately 10th March in the western sky after sunset. The comet has come from the Oort cloud, which comprises a vast swarm of comets surrounding the solar system and extending more than halfway to the nearest star, that is more than two light years from the Sun. ...

The night sky brightness, together with number of clear nights, seeing, transparency, photometric stability and humidity, are some of the most important parameters that qualify a site for front-line ground--based astronomy. ... Night sky at ESO-Paranal (Chile). ... Night sky brightness data . ... UBVRI night sky brightness at ESO-Paranal during sunspot maximum (A 2003, PDF) . ... The Dancing Sky: six years of night sky observations at Cerro Paranal (Starlight 2007 conference proceedings, PDF) . ...

... They cover a period of 4 days in which the Supernova continues to rise in brightness (what astronomers call magntiude). ... First Image Taken on March 11 at 8:22 UT. Second Image Taken on March 12 at 8:52 UT. ... The supernova is the same brightness as in the previous image taken 2 hours ago . ... This image, taken 24 hours after the previous image, shows the supernova to be another 0.21mag (or about 25%) brighter. ... Hopefully the images do show that the brightness of the Supernova is changing. ...

... GOODS unites extremely deep observations from NASA's Great Observatories, Spitzer , Hubble , and Chandra , ESA's Herschel and XMM-Newton , and from the most powerful ground-based facilities, to survey the distant universe to the faintest flux limits across the electromagnetic spectrum. ... The space-based observations are complemented by ground-based imaging and spectroscopy, including extensive commitments of ESO and NOAO observing time. ... 2010-04-10: Deep VLA 1.4 GHz data for GOODS-North . ...

... ATNF Home . ... About ATNF overview . ... Parkes radio telescope . ... ATNF researchers have used the Australia Telescope Compact Array near Narrabri to image the radio remnant of SN 1987A at 12 mm wavelength (18.5 GHz) using all six antennas of the Compact Array to give a maximum baseline of 6km. ... Astronomers will compare this image with images of the supernova remnant obtained at optical wavelengths with the Hubble Space Telescope and X-ray wavelengths with the Chandra space X-ray observatory. ...