... 2004 December 13 . Announcing Comet Machholz . ... Comet C/2004 Q2 (Machholz) is currently best visible in Earth's Southern Hemisphere where some observers report it brighter than magnitude 5. ... Pictured above , Comet Machholz was captured in early December already sporting a bright surrounding coma , a white oblong dust tail fading off toward the bottom, and a long wispy ion tail toward the right with a kink near the end. ... About APOD | ... NASA Official: Jay Norris. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

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 . ...

... Take a few moments to take in all of the wonderful details captured in this new photo of some baby stars in a glowing cloud of gas. ... Here, the gas cloud hasn t been photographed because there are dark clouds called Bok Globules blocking the view. ... This invisibility cloak, though, has a weakness: It fails when astronomers look at the Bok Globules using a special type of telescope that detects infrared light. ... And infrared light can also travel through the dust inside Bok Globules. ...

... 13.12.2004 . ... Comet C/2004 Q2 (Machholz) is currently best visible in Earth's Southern Hemisphere where some observers report it brighter than magnitude 5. ... Pictured above , Comet Machholz was captured in early December already sporting a bright surrounding coma , a white oblong dust tail fading off toward the bottom, and a long wispy ion tail toward the right with a kink near the end. ... Publications with keywords: comet - Comet Machholz . Publications with words: comet - Comet Machholz . ...

The C component of Comet Schwassmann-Wachmann 3 . imaged by Apostolos Christou of Armagh Observatory on 4th April, 2006. ... About one month after its discovery the comet reached its closest point to the Earth (5.73 million miles). ... Current calculations indicate that the main component of the comet, designated SW3C, may reach maximum brightness around May 15th when its distance from the Sun and Earth will be about 93 million miles and 7.5 million miles, respectively. ...