* Astronomy

ATel 9923: Spectroscopic Classification of SN 2016jfu as a Young Type IIP Supernova

ATel 9919: Spectroscopic Classification of SN 2016jdw as a Type Ib Supernova

Title: A Spitzer Space Telescope Atlas of omega Centauri: The Stellar Population, Mass Loss, and the Intracluster Medium Authors: Martha L. Boyer (1), Iain McDonald (2), Jacco Th. van Loon (2), Charles E. Woodward (1), Robert D. Gehrz (1), A. Evans (2), A. K. Dupree (3) ((1) Department of Astronomy...

ATel 9917: Spectroscopic Classification of SN 2016jdj as a Type Ia Supernova

To make up for the slowing down of the Earth's rotation, an extra second will be added to 2005. The “leap second" is the first in seven years and reflects the variation in the Earth's rotation. For the first time since 1998, the International Earth Rotation and Reference Systems Service (IERS[/...

NGC 2598 (also known as MCG 4-20-65, PGC 23855 and UGC 4443) is a magnitude +13.6 inclined barred spiral galaxy located 212 million light-years away in the constellation Cancer. The galaxy is located near to the double star NGC 2597. The galaxy was discovered by German astronomer Albert Marth using...

The Hessle (H5) meteorite fell in Uppsala, Sweden, on the 1st January, 1869. A total mass of 20 kg was recovered. 59° 51'N, 17° 40'E

The Bielokrynitschie (H4) meteorite fell in Khmel'nitskiy, Ukraine, on the 1St January, 1887. A total mass of 1900 g was recovered. 50° 8'N, 27° 10'E

The December Phi Cassiopeiids are a recently-discovered early December meteor shower that radiates from Cassiopeia. Phi Cassiopeiids are very slow, with an entry velocity of approximately 16.7 kilometers per second. The shower's parent body is a Jupiter family comet, though its specific iden...

Scientists using the Rossi X-ray Timing Explorer have found a star orbiting a medium-sized black hole - a theorised "in-between" category of black hole that has eluded confirmation for more than a decade. With the discovery of the star and its orbital period, scientists are now one step away fr...

Title: NGC 2419: a large and extreme second generation in a currently undisturbed cluster Authors: M. Di Criscienzo, F. D'Antona, A. P. Milone, P. Ventura, V. Caloi, R. Carini, D'Ercole, E. Vesperini, G.Piotto We analyse complementary HST and SUBARU data for the globular cluster NGC 2419. We make...

Title: Status report of the Tokyo axion helioscope experiment Authors: Y. Inoue, M. Minowa, Y. Akimoto, R. Ota, T. Mizumoto, A. Yamamoto We have searched for solar axions with a detector which consists of a 4T x 2.3m superconducting magnet, PIN-photodiode X-ray detectors, and an altazimu...

Title: Whiting 1: the youngest globular cluster associated with the Sgr dSph Authors: Giovanni Carraro (Padova), Robert Zinn (Yale), Christian Moni Bidin (UChile) Recently, Carraro (2005) drew attention to the remarkable star cluster Whiting 1 by showing that it lies about 40 kpc from the Sun an...

ATel 9914: ASASSN-16pj: Discovery of A Probable Supernova in GALEXASC J232303.16-361420.6

Oceans' deepest depth re-measured US scientists have mapped the deepest part of the world's oceans in greater detail than ever before. The Mariana Trench in the western Pacific runs for about 2,500km and extends down to 10,994m. This measurement for the deepest point - known as Challenger Deep - is...