• The interplanetary vehicle will proceed along an ellipse .
• The apparent positions of stars move in small ellipses .
• The interplanetary vehicle will proceed along an ellipse .
• The apparent positions of stars move in small ellipses .
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012