Next: FIT/ROMAFOT Up: The Interactive Path Previous: FIND/ROMAFOT . ... To examine the catalogue table created by the command FIND/ROMAFOT one should use the command ``M'' followed by the sequential position of the object. ... A subframe with the selected star at the center is presented to the user. ... During the examination of the objects passed by FIND/ROMAFOT it often happens that several stars are asked to fit together in the same window and some of these are in the catalogue table. ...

... Analysis of in-orbit data closely follow the CSL data analysis. Stars with known astrometric positions are matched with their image centroids. ... The measured position, the expected position and the offset between the measured and expected positions are calculated and written into a file. ... select catalogued positions for different observations/pointings (e.g. positions of objects in photometric sequence) . ... The new distortion map was generated from in-flight observations of the G153 field. ...

... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > I see unexpected boxy emission-like features in my REDL spectra - where do they come from? ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... The pipeline by default interpolates across the bad columns in the REDL CCD when it creates the master bias, but does not so when it processes the science data. This inconsistency can create boxy emission-like features as seen in the figure below. ...

... Laboratory and theoretical modelling of the UV bump on the interstellar extinction curve is a very popular topic in dusty investigations. ... feature is illustrated by Fig. 10 where the profiles were calculated using the model of graphite spheres. Figure 10: Normalized extinction efficiencies for graphite spheres. ... The lower panel shows the summary extinction of two graphite spheres with radii and (from upper panel) taken in equal proportions. ...

... These are ``quirks'' rather than ``bugs''. Below is a list of quirks. When loading a file and ``Reset Intensity Upon File Load'' is disabled, the intensity range of the previous image will be used. ... When moving between two images (such as when blinking, or when loading a new image), the display system attempts to retain the old image parameters (i.e. zoom box). What is retained are the corners of the zoom box measured in image pixel co-ordinates, not world co-ordinates. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2015 May 4 . An Unexpected Aurora over Norway . ... Explanation: Sometimes the sky lights up unexpectedly. ... Therefore, the astrophotographer began packing up to go. His brother began searching for a missing lens cap. ... Follow APOD on: Facebook , Google Plus , or Twitter . ... NASA Official: Phillip Newman Specific rights apply . ...

HST MOSES Electrical Power Subsystem Natalie Seftas September 30, 2002 INSTRUMENT OR SUBSYSTEM: SA3 Drive Mechanism Performance REQUIREMENT: J10.4.14.1.1 "Verify that SA3 Drive Mechanism is performin g nominally and that the sensed positions are within +/- 3.5 degrees of the commanded position when operating within the range of 0 to 130 degrees and +/- 5.0 degrees if operating outside this range. ... DESCRIPTION OF RESULTS : HST power performance has exceeded BOL predictions. ...

Blackholes2 Forum Message . ... Post . ... Shifts Are As Would Be Expected. ... Post Message | ... Red and blue shifts can be caused by velocities also. ... The expectd result would be a red or blue shift proportional to the aparent distance an object is from the observer. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Tonight's Sky . ... Observing . ... Bob Berman . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Dave's Universe . ... Bob Berman's Strange Universe . Bob Berman's strange universe: Expect a surprise . ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

Next: Coordinate Systems Up: IRAF/PROS Previous: Other Types of Files . A few new features and enhancements to the standard IRAF system have been introduced with the PROS software: . ... Default compound extensions are used by the PROS tasks when no extension is given for the output file name. Most PROS tasks allow the output file name to be defaulted, with the convention that the output file name will be composed of the input `root' name, plus the default extension specific to the task. ...