Just a few days ago was the vernal, or spring equinox. On that day in March, of course, the night is exactly as long as the day. Six months from now is the autumn equinox, when, once again, the night ...

ABSTRACT.During 2006 CH Cyg declined steadily from V = 7.3V=7.3 to 9.4, which is close to the faintest recorded minimum of 11.0 achieved after its outburst in the 1980s. We present light and color ...

SPECIAL ISSUE NO. 109. Coordinated Sustainable Development in Coastal Areas: Environment and Economy (FALL 2020), pp. 8-12 (5 pages) Published By: Coastal Education & Research Foundation, Inc. The ...

A translation is a movement of the graph either horizontally parallel to the \(x\)-axis or vertically parallel to the \(y\)-axis. The graph of \(f(x) = x^2\) is the same as the graph of \(y = x^2\).

A translation is a movement of the graph either horizontally parallel to the \(x\)-axis or vertically parallel to the \(y\)-axis. The graph of \(y = f(x)\) where \(f(x) = x^2\) is the same as the ...