The first coordinate, 65 e, is the right ascension, which is measured in hours, minutes, and seconds. It represents the angle between the vernal equinox (the point in the sky where the Sun crosses the celestial equator on its way north) and the object's position, as measured along the celestial equator.
The second coordinate, 45 e, is the declination, which is measured in degrees, minutes, and seconds. It represents the angle between the celestial equator and the object's position, as measured along a line perpendicular to the celestial equator.
In this case, 65 e 45 e represents a location in the sky that is 65 hours, 45 minutes, and 0 seconds east of the vernal equinox and 45 degrees, 0 minutes, and 0 seconds north of the celestial equator.
To visualize this location, you can imagine standing on Earth and looking up at the sky. The vernal equinox is the point on the horizon where the Sun rises on the first day of spring. If you were to move 65 hours, 45 minutes, and 0 seconds east along the horizon from the vernal equinox, you would be facing a point in the sky that is 65 e. Then, if you were to move 45 degrees, 0 minutes, and 0 seconds up from the horizon along a line perpendicular to the horizon, you would be looking at the location in the sky that is 45 e.