A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.

A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.

A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.

A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.

A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.

A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.

A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.

A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.

A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.

A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.

A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.

A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.

A natural object in any sky may be the subject of object astronomy.

Def. a natural object in the sky especially at night is called an astronomical object.