... Club By-laws . ... Other Club Activities . ... Public Nights . ... Dr. James Green, NASA, Director Planetary Science will be our esteemed speaker on Tuesday, April 12, 2016 at 7:30 PM in Peyton Hall on the Princeton University campus. ... Our astronomers setup telescopes for public use at Communiversity in Princeton, Super Science Saturday at the NJ State Museum in Trenton and at various public events around Mercer County. ... Amateur Astronomers Association of Princeton, Inc., ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2001 October 3 . The Planetary Nebula Show . Credit: Courtesy Adam Block ( KPNO Visitor Program ), NOAO , NSF . ... In order, their catalog designations are NGC 1535 , NGC 3242 (Ghost of Jupiter), NGC 6543 (Cat's Eye), NGC 7009 (Saturn Nebula), NGC 2438 , NGC 6772 , Abell 39 , NGC 7139 , NGC 6781 , and M97 (Owl Nebula). ... About APOD | ...

Voyager 2 image of Neptune showing the Great Dark Spot and associated bright clouds and a bright Scooter to the lower left. ... Central Latitude/Longitude (deg): N/A . ... Instrument: Narrow Angle Vidicon Camera . ... Instrument Field of View (deg): .424 x .424 . ... Illumination Incidence Angle (deg): N/A . Phase Angle (deg): N/A . ... Surface Emission Angle (deg): N/A . ... NASA Image ID number: P-34632 . ... Code 633, NASA Goddard Space Flight Center . Greenbelt, MD 20771, USA . ...

... Ten different planetary nebula images are presented, each registered on the central star. In order, their catalog designations are NGC 1535 , NGC 3242 (Ghost of Jupiter), NGC 6543 (Cat's Eye), NGC 7009 (Saturn Nebula), NGC 2438 , NGC 6772 , Abell 39 , NGC 7139 , NGC 6781 , and M97 (Owl Nebula). ... Publications with keywords: planetary nebula - NGC 1535 - NGC 3242 - NGC 6543 - NGC 7009 - NGC 2438 - NGC 6772 - Abell 39 - NGC 7139 - NGC 6781 - M 97 . ... Ring Nebula Drawn . ... The Cats Eye Nebula . ...

... The awsome spectacle of a brilliant comet, with its long ghostly tail streaming behind it, is a rare event. ... Only one other comet, Comet Halley, was seen so far from the Sun, giving scientists an opportunity to watch it as it slowly warmed up and sprouted a tail. ... Comets are the Rip Van Winkles of the solar system -- mini-worlds that have changed little during their 4.5-billion-year nap far from the Sun. ... Observing Comets . ... Once, comets inhabited the entire solar system. ...

There is often dust associated with ionized regions. Compact HII regions usually have associated dust from a molecular cloud in which the massive star is being "born". ... For such stars the dust is not produced by the star, and a variety of dust features are observed. The planetary nebulae also usually have associated dust from the previous stage of evolution where they were either carbon stars or M-type giants. ... The feature near 11.5 microns in the IC 418 spectrum may be due to SiC dust. ...

Meteors are more than just pretty lights in the sky. Since the majority of meteor-producing meteoroids originate from comets, they contain invaluable information about these objects not otherwise obtainable. ... One such possibility is the planet Mars. ... Taking into account the slower average speed of incoming material at the heliocentric distance of Mars from the Sun, a meteoroid of the same mass entering the martian atmosphere at 30km/sec would produce a meteor +0.5 mag fainter than at Earth. ...

... This 10 min exposure shows star trails clearlтАж . Sidebar Left . ... Title: This 10 min exposure shows star trails clearly defining the south celestial pole just left of centre. Description: The Large and Small Magellanic Clouds are on the left and the Milky Way from Crux through Centaurus are on the right. ... This 10 min exposure shows star trails clearly defining the south celestial pole just left of centre. ...

... Science Users Information > Data Handling and Products > Data Reduction FAQ > Some OmegaCAM detectors show an odd central stripe in the bias and master bias images. ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... ESO HST Image Galleries . ... ESO Data Access Policy . ... Two OmegaCAM detectors (ESO_CCD_#68 and #90) show a centrally elevated structure in their bias frames. ... The image showing the central feature in the bias of the detector ESO_CCD_#68 (left panel). ...

The first series of images refers to NGC 1672, a barred spiral. We present a gray scale V-band image to show the overall morphology, followed by an intensity map in H-alpha which shows how the H II regions are distributed, followed by the velocity map. ... Different colors refer to different velocities as the galaxy is rotating. ... The following image is an H-alpha intensity map of the spiral galaxy NGC 1292. ... This next image is an H-alpha intensity map of the spiral galaxy NGC 1406. ...

The picture above was made with this demo POV file and this shower valve object POV file . This object is loosely based (visual, no measurments) on the SigmaTherm thermastatic shower valve by Sigma Faucets. It consists of a temperature adjustment, and two valves for controlling a tub filler and showerhead (for example). ... The valve lies on the Z=0 plane, and extends out in the positive Z direction, by 2.86 units to the central knob. ... The back plate of this valve is 8 units in diameter. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Stars . ... Space Flight . ... Monthly Sky Notes . ... By admin October 1, 2010 Posted in: Stars . A sky of blazing stars (Image Credit: NASA/ESA) . Imagine that once the Sun sets, rather than a dark sky sprinkled with a few thousand dim stars, we had a sky blazing with ten thousand or so stars blazing brighter than Venus. ... Planets orbiting stars in the NGC 3603 Young Cluster would experience just such a sky. ...

Next: ASSIGN/GRAPHIC and COPY/GRAPHIC Up: General Commands Previous: General Commands . SET/GRAPHIC plays an important role in the plot package. This command gives the user control over the plot size, line types ( LTYPE ) љ , line thickness ( LWIDTH ) љ , symbol type ( STYPE ) љ and size ( SSIZE ) љ , etc. In Table the various options that can be set with the SET/GRAPH command are listed, together with the default settings. ... When STYPE=0 a line will be drawn corresponding to LTYPE . ...

... Tonight's Sky . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The Real Reality Show: Would aliens be anything like us? ... The Real Reality Show: All about the Drake Equation . ... The Real Reality Show . ... The Real Reality Show: Matter and Energy . ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

General Forum Message . ... Post . ... Angular Speeds Of Meteor Showers . ... Post Message | ... Does anyone know of some place online where I can find the average or typical angular speeds for given meteor showers (at least the major ones), preferably in degrees per second, or at least in descriptive terms, such as "fast" or "slow"? ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

HIGHLIGHTS Astronomy highlights First obser vations of SNR 1987A at 12 mm (page 19) One of the principal scientific justifications for the 12-mm upg rade on the Compact Ar ray was to obtain higher resolution imag es of continuum sources, in particular for the radio remnant of the supernova SN 1987A. In October 2001, the first 12-mm image of SN 1987A was obtained using three Compact Ar ray antennas equipped with interim 12-mm receivers. ...

Proposal Identification No.: A2769 Date Received: 2012-Aug-30 15:06:14 Technical Page Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Galactic 80 Hours 1 hour True HI column density of five ma jor giant molecular clouds We showed in Lee et al. that the HI surface density of the atomic envelope associated with the Perseus molecular cloud is relatively constant. ...

... During the analysis of the surveys carried out on RATAN-600, it was found that almost one fifth of the detected sources shows significant radio flux variations. ... We used the data from "Cold" radio surveys carried out with RATAN-600 in 1980-1994 to search for radio sources with significant flux variability. ... On possibility of detection of variable sources using the data of Cold surveys carried out on RATAN-600. ... Detection of Variable Sources Using the Data of "Cold" Surveys. ...

This example shows a difference between CSS's table model for HTML and for other document formats. The first, HTML, example is defined by HTML to be illegal, as it would lead to overlapping cells if HTML's rules for layout are followed. ... The diagram depicts how the two examples, the HTML one and the almost identical non-HTML one, might be rendered. ... The rendering of the non-HTML example is on the right, it follows the CSS rules and thus has no overlapping cells. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Sun coming thru clouds forms beams of light (in dust in air?) ... Why does it look like that when the rays are supposed to be parallel and the sun 93M miles away? ... The rays really do appear to diverge: they are close together near the Sun, then spread out overhead. ... The rays as a set are parallel, but each ray is a little bit fan-shaped. ... 2008 Phil Plait. ...