Comments: Mak127/1500, ZWO ASI 224MC

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Observation 1
Feature(s)	GRS Ganymede
Filter(s)	N/A
Date	2023-09-17 20:59:00
Julian day	2460205.3743055556
System I	264.15°
System II	333.18°
System III	0.81°
Illumination	100.0%
Phase angle	7.800000190734863°
Solar longitude	116.5°
Eq. diameter	47.1″
Derotation	1.0 min