Revision as of 21:41, 17 May 2021 (view source) rosettacode>Lscrd (→‎{{header\|Nim}}) ← Older edit		Revision as of 22:05, 17 May 2021 (view source) rosettacode>Gerard Schildberger m (elided a right parenthesis.) Newer edit →
Line 13: :*   Show the air mass for zenith angles '''0''' to '''90''' in steps of '''5''' degrees for an observer at sea level. :*   Do the same for the SOFIA infrared telescope, which has a cruising altitude of 13,700 meters   (about 8.3 miles), ::     flying in a specially retrofitted Boeing 747 about four flights a week). <br><br>

Air mass (view source)