* Astronomy

Title: A ~50,000 solar mass black hole in the nucleus of RGG 118 Author: Vivienne Baldassare, Amy Reines, Elena Gallo, Jenny Greene Scaling relations between black hole (BH) masses and their host galaxy properties have been studied extensively over the last two decades, and point towards co-evol...

Title: The GJ 436 System: Directly Determined Astrophysical Parameters of an M-Dwarf and Implications for the Transiting Hot Neptune Authors: Kaspar von Braun (1,11), Tabetha S. Boyajian (2,3), Stephen R. Kane (1,11), Leslie Hebb (9), Gerard T. van Belle (4), Chris Farrington (6), David R. Ciar...

Title: Evolution of a ring around the Pluto-Charon binary Author: B. C. Bromley, S. J. Kenyon We consider the formation of satellites around the Pluto-Charon binary. An early collision between the two partners likely produced the binary and a narrow ring of debris, out of which arose the moons -- St...

Title: X-raying the coronae of HD 155555 Author: S. Lalitha, K.P. Singh, S.A. Drake, V. Kashyap We present an analysis of the high-resolution Chandra observation of the multiple system, HD 155555 (an RS CVn type binary system, HD 155555 AB, and its spatially resolved low-mass companion HD 155555 C...

Title: HIP10680/HIP10679: a visual binary in the beta Pictoris Association with the fastest rotating member Author: Sergio Messina, Veli-Pekka Hentunen, Roberto Zambelli We present the results of a multi-filter photometric monitoring of the wide binary HIP10680/HIP10679. We found both com...

NGC 188 is an open cluster in the constellation Cepheus. It was discovered by John Herschel in 1825. Unlike most open clusters that drift apart after a few million years because of the gravitational interaction of our galaxy, NGC 188 lies far above the plane of the galaxy and is one of the most ancient o...

White-light image of new sunspot 12378 on the eastern limb.

Meteoriteshttp://astronomy.activeboard.com/t62773165/viksdalen-meteorite/

Comet C/2015 M1 (PANSTARRS) makes its closest approach to the Earth (1.153 AU) in the constellation Sagittarius on the 26th June 2015. EphemerisDate UT R.A. (J2000) Decl. Delta r El. Ph. Mag 2015 06 25 000000 19 24 38.5 -25 32 10 1.154 2.148 163.5 7.7 20.1 2015 06 26 000000 19 23 22.5 -26 16 37 1.154 2.15...

Comet P/2007 C1 (Christensen) makes its closest approach to the Earth (1.421 AU) on the 3rd April 2014 EphemerisDate TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2014 04 01 13 45 25.7 -03 01 57 1.4223 2.3978 163.7 6.7 19.6 2014 04 02 13 44 40.4 -03 00 38 1.4218 2.4006 164.8 6.3 19.6 2014 04 03 13 43 54.4 -0...

The 110 - 240 metre wide asteroid 2015 MG116 will make a close pass (23.7 LD, 0.0609 AU) travelling at 18.15 km/second, to the Earth-Moon system on the 4th July 2015 @ 17:36 UT ±00:01. See more The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).

The 58 - 130 metre wide asteroid 2015 MQ116 made a close pass (35.1 LD, 0.0902 AU) travelling at 8.16 km/second, to the Earth-Moon system on the 26th June 2015 @ 23:29 UT ±00:07. See more The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).

A new image from the Spitzer Space Telescope reveals hundreds of young stars. The new infrared image of the reflection nebula NGC 1333, located about 1,000 light-years from Earth in the constellation Perseus, reveals dozens of stars like the Sun but much younger. "These newborn...

Hubble View: Wolf-Rayet Stars, Intense and Short-Lived This NASA/European Space Agency (ESA) Hubble Space Telescope picture shows a galaxy named SBS 1415+437 (also called SDSS CGB 12067.1), located about 45 million light-years from Earth. SBS 1415+437 is a Wolf-Rayet galaxy, a type of star-bu...

A new sunspot has appeared on the eastern limb