* Astronomy

NGC 1808 (also IRAS 05059-3734, MCG -6-12-5 and PGC 16779) is a magnitude +10.8 Seyfert galaxy located 46 million light-years away in the constellation Columba. NGC 1808 is probably a neighbour of, and gravitationally interacting with, NGC 1792. The galaxy was discovered by Scottish astronomer...

Title: The Northern wraps of the Sagittarius Stream as traced by Red Clump stars: distances, intrinsic widths and stellar densities Authors: M. Correnti, M. Bellazzini, R.A. Ibata, F.R. Ferraro, A. Varghese We trace the tidal Stream of the Sagittarius dwarf spheroidal galaxy (Sgr dSph) using Re...

Japan cancels failed $9bn Monju nuclear reactor Japan is a scrapping an experimental reactor which has worked for just 250 days of its 22-year lifespan and cost $9bn (£7.2bn). The Monju reactor, in western Japan's Fukui city, was designed to burn most of its own spent fuel, eliminating the need to de...

ATel 9888: Spectroscopic classification of Gaia16cdi (SN 2016iyf) as Type Ia supernova with SEDM

NOAA's GOES-S Satellite Undergoing Environmental Testing Following the successful launch of GOES-R, renamed GOES-16 upon reaching geostationary orbit, progress continues on development of the GOES-S spacecraft. The Geostationary Operational Environmental Satellite or GOES-S is now ful...

Launch Report of ERG "ARASE" by Epsilon-2 rocket Spoiler

Some of the coldest temperatures on Earth brought a rare cloud formation to the skies over Antarctica, scientists said Tuesday. The so-called nacreous clouds were situated high in the stratosphere, requiring temperatures less than minus 176 degrees Fahrenheit. A weather balloon measured temp...

ATel 9887: ASASSN-16oz: Discovery of A Probable Supernova in an Uncatalogued Galaxy

An interdisciplinary team of scientists thinks it has an answer to a long-standing mystery of why the permanent icecap on Mars' South Pole is offset from the pole itself. Simply put, it's colder and stormier in that hemisphere. But that is only part of the equation, scientists say, and new under...

POLAR NEUTRINO OBSERVATORY TAKES A BIG STEP FORWARD An international team of scientists and engineers has taken a major step toward completion of what will be the world's preeminent cosmic neutrino observatory, harnessing a sophisticated hot-water drill to build an observatory under t...

Title: A Quasar Discovered at redshift 6.6 from Pan-STARRS1 Author: Ji-Jia Tang, Tomotsugu Goto, Youichi Ohyama, Wen-Ping Chen, Fabian Walter, Bram Venemans, Kenneth C. Chambers, Eduardo Banados, Roberto Decarli, Xiaohui Fan, Emanuele Farina, Chiara Mazzucchelli, Nick Kaiser, Eugene A. Ma...

Title: An eccentric companion in the edge of the brown dwarf desert orbiting the 2.4 Msun giant star HIP67537 Author: M. I. Jones, R. Brahm, R. A. Wittenmyer, H. Drass, J. S. Jenkins, C. H. F. Melo, J. Vos, P. Rojo We report the discovery of a substellar companion around the giant star HIP67537. Based on...

Continuing spectroscopic observations (3500-8800A) of Nova Del 2013 with the Ondrejov Observatory and the ARAS group Nova Del 2013

Title: A 2 hour periodic variation in the low mass X-ray binary Ser X-1 Authors: R. Cornelisse, J. Casares, P.A. Charles, D. Steeghs Spectroscopy of the low mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ~2 hr periodic variability that is present in the three strongest e...

Title: A remarkable recurrent nova in M31 - The optical observations Author: M. J. Darnley (1), S. C. Williams (1), M. F. Bode (1), M. Henze (2), J.-U. Ness (2), A. W. Shafter (3), K. Hornoch (4), V. Votruba (4) ((1) Astrophysics Research Institute, Liverpool John Moores University, UK, (2) European...