* Astronomy

Hubble Captures Brilliant Star Death in "Rotten Egg" Nebula The Calabash Nebula, pictured here which has the technical name OH 231.8+04.2 - is a spectacular example of the death of a low-mass star like the sun. This image taken by the NASA/ESA Hubble Space Telescope shows the star going through a rap...

Image of Sunspots 12632 and 12629 on the western limb captured with a 100mm f5 Helios refractor and Vesta pro webcam.

Solar Storm Forecast Spoiler

An astronaut, several geologists, and others are getting ready to troll for solar system rock samples. But they won't leave Earth to do it. Instead, they'll scan the ice fields of Antarctica for meteorites. Explorers collected the first meteorite from Antarctica almost a century ago. But the fi...

ATel 10040: Swift UV/X-ray non-detection of the recurrent nova M31N 2007-11f

Title: The Period Evolution of the Chemically Peculiar Star V473 Tau Author: Dogus Ozuyar, Ian R. Stevens In this paper, the period evolution of the rotating chemically peculiar star V473 Tau (A0Si, V = 7.26 mag) is investigated. Even though the star has been observed for more than fifty years, for t...

Title: HAT-P-67b: An Extremely Low Density Saturn Transiting an F-Subgiant Confirmed via Doppler Tomography Author: G. Zhou, G. A. Bakos, J. D. Hartman, D. W. Latham, G. Torres, W. Bhatti, K. Penev, L. Buchhave, G. Kovács, A. Bieryla, S. Quinn, H. Isaacson, B. J. Fulton, E. Falco, Z. Csubry, M. Ever...

Title: Jupiter - friend or foe? I: the asteroids Authors: J. Horner, B. W. Jones (The Open University, UK) The asteroids are the major source of potential impactors on the Earth today. It has long been assumed that the giant planet Jupiter acts as a shield, significantly lowering the impact rate on th...

ATel 10039: Spectroscopic Classification of SN 2017yi as a Type Ia Supernova

ATel 10037: MASTER: high amplitude (>6.8m) optical transient and new OT

World Wetlands Day occurs on February 2, every year. It marks the date of the signing of the Convention on Wetlands, called Ramsar Convention, on 2 February 1971, in the Iranian city of Ramsar on the shores of the Caspian Sea. Read more

The 11 - 26 metre wide asteroid 2017 BS32 will make a close pass (0.4 LD, 0.0011 AU) travelling at 11.57 km/second, to the Earth-Moon system on the 2nd February 2017 @ 20:22 UT ±00:06. See more The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).

ATel 10035: MASTER: bright optical transient

NGC 6357 (also War and Peace Nebula, Lobster Nebula, Sharpless 11, RCW 131, Gum 66 and ESO 392-SC10) is a magnitude +8.2 emission nebula located 8000 light-years away in the constellation Scorpius. The nebula includes the open cluster Pismis 24, which is home to some of the most massive stars known....

Title: Temporal resolution of a pre-maximum halt in a Classical Nova: V5589 Sgr observed with STEREO HI-1B Author: S. P. S. Eyres, D. Bewsher, Y. Hillman, D. L. Holdsworth, M. T. Rushton, D. Bresnehan, A. Evans, P. Mroz Classical novae show a rapid rise in optical brightness over a few hours. Until re...