| the movement or path of the earth or a heavenly body turning on its axis |
| any of the nine large heavenly bodies revolving about the sun and shining by reflected light: a similar body revolving about a star other than the sun |
ingress (ˈɪŋɡrɛs) ![]() | |
| —n | |
| 1. | the act of going or coming in; an entering |
| 2. | a way in; entrance |
| 3. | the right or permission to enter |
| 4. | astronomy another name for immersion |
| [C15: from Latin ingressus, from ingredī to go in, from gradī to step, go] | |
| ingression | |
| —n | |
ingress
in astronomy, the apparent entrance of a smaller body upon the disk of a larger one as the smaller passes between the larger and the observer-e.g., the entrance of a satellite or its shadow on the disk of a planet. The term is also applied to the Moon's entrance into the Earth's shadow at the start of a lunar eclipse and to the Sun's entrance into a zodiacal constellation.
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