Comments: Seeing was terrible during the evening.

[Add observation]

Observation 1
Feature(s)	GRS blue festoons white plumes
Filter(s)	l
Date	2023-12-10 19:15:00
Julian day	2460289.3020833335
System I	171.64903°
System II	29.029106°
System III	76.54244°
Illumination	99.6%
Phase angle	7.5°
Solar longitude	123.3°
Eq. diameter	46.89″
Derotation	6.0 min