... 6.10.2013 . ... October 2013 . ... 2013 2014 . ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ... Publications with keywords: Perseus cluster - active galaxy - magnetic field - X-ray - radio - multiwavelength . Publications with words: Perseus cluster - active galaxy - magnetic field - X-ray - radio - multiwavelength . ... Nearby Spiral Galaxy NGC 4945 . Plasma Jets from Radio Galaxy Hercules A . Spiral Galaxy NGC 5033 . ...

... 2013 October 6 . Hubble Remix: Active Galaxy NGC 1275 . Image Credit: Data - Hubble Legacy Archive , ESA , NASA ; Processing - Al Kelly . Explanation: Active galaxy NGC 1275 is the central, dominant member of the large and relatively nearby Perseus Cluster of Galaxies . ... NGC 1275 accretes matter as entire galaxies fall into it, ultimately feeding a supermassive black hole at the galaxy's core. ... Note: How to find APOD Alternative Mirror Sites . ... About APOD | ...

... Sun images . ... Active areas . October : 2014 . ... The following regions with sunspots can be now observed on the Sun's surface . Group number . ... Group length (in degrees) . ... Alpha . ... Coordinates and other characteristics of active regions are issued for October 09, 2014 00:31 UT The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates and other characteristics of active regions are issued for October 09, 2014 00:31 UT . ...

... STScI-PRC98-28 HUBBLE SERVES UP A GALAXY What may first appear as a sunny side up egg is actually NASA Hubble Space Telescope's face-on snapshot of the small spiral galaxy NGC 7742. But NGC 7742 is not a run-of-the-mill spiral galaxy. In fact, this spiral is known to be a Seyfert 2 active galaxy, a type of galaxy that is probably powered by a black hole residing in its core. ... The lumpy, thick ring around this core is an area of active starbirth. ...

... Artist's concepts of two ATLAST designs . ... ATLAST: Characterizing Habitable Worlds (Postman et al. ... Science drivers and requirements for an Advanced Technology Large Aperture Space Telescope (ATLAST):Implications for technology development and synergies with other future facilities (Postman et al.) ... A 16-m ATLAST Mission Design (Lillie et al.) ... Conceptual Design for a 16-m Segmented UVOIR Space Telescope (Korechoff et al.) ... Science with an 8-m to 16-m ATLAS Telescope (Postman et al.) ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... Science . ... Science Users Information > Science Publications > Science Announcements > Clustering Measurements of Active Galactic Nuclei . ... Observing Facilities . ... ESO Data . ... Galaxies and active galactic nuclei (AGN) are not randomly distributed in the Universe. ... This ESO workshop, which will be the first ever dedicated workshop on AGN clustering, aims to summarise our current understanding of AGN clustering and how the community should prepare for upcoming data sets and challenges. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Orientation and Evolutionary Effects in Active Galactic Nuclei . ... In this invited review, I present observational results of Active Galactic Nuclei that my colleagues and I have recently obtained. ...

... We have measured radio flux densities of BL Lacertae ( B2200+420 ) with the RATAN-600 radio telescope at 4.8, 7.9, 11.2 and 21.7 GHz during 6 October - 20 November, 2012 to study the detected ( ATel #4557, #4565, and #4568 ) flare. ... On 12 November flux density had notably risen to 8.30 +/- 0.19 Jy at 7.7 GHz, to 9.86 +/- 0.09 Jy at 11.2 GHz and to 11.70 +/- 0.3 Jy at 21.7 GHz. ... The spectral index changed from -0.08 +/- 0.02 to +0.23 +/- 0.02 at 11.2-21.7 GHz for October to November flux points...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil La com†иte Chury toujours active . ... Cette photo prise le 1 er mars 2016, †а seulement 26,7 km de distance, met en †йvidence un beau jet de mati†иre qui s'†йchappe en bordure des r†йgions Imhotep et Bes, sur le lobe de l'h†йmisph†иre Sud de la com†иte. ... Etat du ciel ...