... Tonight's Sky . ... Observing . ... 50 Weirdest Objects . ... solar system . ... Observing springtime deep-sky objects with a large telescope . ... Simulating Sedna . ... Now, S. Alan Stern of the Southwest Research Institute in Boulder, Colorado, says large bodies may have formed much farther out than previously thought and Sedna may be only the first of many such objects found in the solar system's hinterlands. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

IDL . Python IDL download calc_kcor.pro . K-corrections calculator in IDL. ... Python download calc_kcor.py . ... Available filter-colour combinations must be present in the ` coeff ` dictionary keys. @type filter_name: string @param filter_name: Name of the filter to calculate K-correction for, e.g. 'u', 'g', 'r' for some of the SDSS filters, or 'J2', 'H2', 'Ks2' for 2MASS filters (must be present in ` coeff ` dictionary) @type redshift : float @param redshift : ... Get the code . ...

. Authors . Problem . Method . Advises . Contact Analysis of an accuracy of CCD asteroid observations carried out by professional and amateur astronomers . An accuracy estimation of CCD asteroid observations contained in the Minor Planet Center Database and carried out in the years 1999 - 2006 is realized. About 20 millions individual positions of the Numbered and Unnumbered Minor Planets were tested by means of calculations of (O-C) residuals to derive "mean error of a single observation" for more than 400

... 0.2 0.3 0.3 0.4 0.3 0.3 0.3 0.3 0.4 0.4 Defense--Military.. ... 0.8 0.9 0.8 1.0 1.8 2.3 2.4 2.2 2.4 2.5 Energy.. ... 0.8 -0.5 0.1 0.4 1.8 2.0 2.1 0.4 1.2 1.3 Interior.. ... 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.3 General Services Administration.. 0.4 0.4 0.4 0.5 0.4 0.4 0.3 0.3 0.3 0.3 National Aeronautics and Space Administration.. ... 0.1 0.1 0.2 0.2 0.4 Social Security Administration (Off-budget).. ... 6.0 1.3 -0.8 0.7 0.5 0.8 1.1 1.0 0.8 0.6 Other Independent Agencies (Off-budget).. ...