... A rough estimation is that in the United States there is one planetarium per 100,000 population, ranging in size from the Hayden Planetarium's 20-meter dome seating 430 people, to three-meter inflatable portable domes where children sit on the floor. ... Together dblo associates make a huge impact in the architecture, interior design and development arena in London. ... With the holidays around the corner what better way to spoil your family than with your very own private home cinema. ...

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

... Figure 3 shows several tails resulting from trap 2-637. ... The solid line shows a simple exponential decay, as described in our idealized model. It appears that the behavior of the bright traps has been relatively constant with time, and the simple exponential decay provides a fairly good fit to the data. ... What about the dark tails seen just above some of the traps? ... For example, the dark tail decay rate for trap 2-337 is only about 3% while the bright tail decay rate is 19%. ...

... My research interests include the compositions of extrasolar rocky objects and the fate of planetary systems around white dwarfs. ... This process often creates a hot dust disk very close to the white dwarf. Measuring the atmospheric compositions of externally-polluted white dwarfs can provide unique information about the composition of those extraterrestrial material. ... Circumstellar Environment around White Dwarfs . About 4% white dwarfs display excess infrared radiation from a dust disk. ...

... The input images are wlc , the wavelength calibration frame, and obj , the object. ... WRITE/OUT Copy test images -DELETE lndemo_*.* ... SAVE/LONG ses1 WRITE/OUT "Now calibrating another arc spectrum in GUESS mode" SET/LONG WLCMTD=GUESS GUESS=ses1 WLC=lndemo2 LINCAT=lndemo_thorium SET/LONG WIDTH=4 THRES=3. ... RADIUS=2 SKYFIT/LONG ext8 stdsky LOAD stdsky COMPUTE/IMAGE ext7 = ext8 - stdsky SET/LONG OBJECT = 199,203 EXTRACT/AVERAGE ext7 stda PLOT stda EXTRACT/LONG ext8 stde stdsky PLOT stde ! ...

This example shows how to add a few input widgets to a script and how to get data from them. This is a fairly artificial example in that one would normally just use the DIS Expose window for this purpose. ... import RO.Wdg import Tkinter import TUI .Inst.ExposeModel as ExposeModel from TUI .Inst.ExposeStatusWdg import ExposeStatusWdg class ScriptClass(object): Take a series of DIS darks with user input . def __init__(self, sr): Display exposure status and a few user input ...

... 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. ...

Next: ZGSC (Compressed GSC) and XSKYMAP . ... This is a preliminary report on an investigation of the quality and properties of plates digitized during creation of the Guide Star Catalog (GSC). The results will be vital for reclassifying GSC objects. ... Many objects are measured on more than one plate, and thus have multiple catalog entries. ... Among the shortcomings of the GSC are: biased magnitudes and incorrect classifications for certain objects, presence of artifact objects. ...

... The documentation on image display and communications support are highly recommended. ... Colourmap creation sample programme: X11 interface */ /*----------------------------------------------------------*/ #include <karma.h> #include <karma_kcmap.h> #include <karma_xc.h> #include <X11/Xlib.h> #include <X11/Xutil.h> #define DEFAULT_COLOURMAP_NAME "Greyscale1" #define MAX_COLOURS (unsigned int) 200 Kcolourmap setup_cmap (dpy, window) /* This routine will create a Kcolourmap object from an X11 display...