... Triton: Neptunes Largest Moon . 3.03.2007 . ... Lunar Transit from STEREO . ... So, looking toward the Sun, extreme ultraviolet cameras onboard STEREO B were able to record a stunning movie of a lunar transit (aka solar eclipse), as the Moon tracked across the solar disk. Solar Eclipse from the Moon . ... Stars, Dust and Nebula in NGC 2170 . ... When stars form, pandemonium reigns. ... APOD: 2007 February 24- X rays and the Eagle Nebula . ... APOD: 2007 February 23- Dust and the Helix Nebula . ...

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

... 2012 October 16 . A Spiral Nebula Surrounding Star R Sculptoris . Visualization Credit: ALMA Observatory ( ESO / NAOJ / NRAO ) . Explanation: What's happening around that star? An unusual spiral structure has been discovered around the Milky Way star R Sculptoris , a red giant star located about 1,500 light years away toward the constellation of the Sculptor ( Sculptoris ). ... A digital slice through this data showed the unexpected spiral structure . ... About APOD | ...

A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...

The discovery of two new satellites of Pluto N E r a w im a g e P1 Launch: January 2006 ! ... The "clean" distortion-corrected and median-combined images displayed above show some residuals from the incomplete rejection of the artifacts evident in the individual "raw" images (Figure 1): star trails, cosmic rays, diffraction spikes, saturation and bleeding of overexposed Pluto and Charon, and the WFC interchip gap (where the new satellites were hidden in 2 of the 4 dithered images on May 15). ...

In autumn 1994, two groups of astronomers announced that they had discovered Cepheid variable stars in a distant cluster of galaxies. ... As the term suggests, variable stars change in brightness over time. ... Variable stars are an ideal way to get high-school students doing real science, with real data, from the real sky. ... a sky chart to find the stars . ... Students can use the nearby stars to estimate the magnitude of Delta. ... Locate the star Delta in Cepheus and estimate its brightness . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Telescopes and Observatories . ... The majestic star-forming region in the Lagoon Nebula. The pale ring to the right is an internal reflection in the telescope.€а (Image credit: ESO/ VPHAS+/ V. Kalari and J. Vink (Armagh Observatory) . ... The 18 component images were further processed twice. ... Venu and his colleagues use images like this to identify individual young forming stars in the Lagoon Nebula and determine their ages. ...

... English astronomer and mathematician. ... American astronomer. ... Bond, William Cranch 1789-1859 . ... At the observatory, he studied Saturn and (with William Lassell ) discovered its moon Hyperion . ... Polish astronomer who advanced the heliocentric theory that the earth and other planets revolve around the Sun. ... Galileo Galilei 1564-1642 . ... Van Allen discovered the Earth's radiation belts, which now bear his name, with an instrument aboard the first successful American satellite, Explorer...

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs