IWLOP #111 - Hortensius & Hortensius Domes
A fine sharp-rimmed crater (2860m deep) with a fascinating group of domes nearby. The domes are quite obvious under the right lighting conditions, but are elusive at other times.
Location: 7.0 N 28.0 W Origin: Impact and Volcanism Size: 14.6 km (Hortensius) and various domes Rukl: 30 Type: Simple Crater (CS) and Domes
Objects: Hortensius, Hortensius Domes, Mare Insularum ("Sea of Isles")
Others Identified: Copernicus, Milichius, T. Mayer, T. Mayer A
Location: Home
Date: 2021-06-20, 2 days after 1st Quarter
Time: 11:07 PM ADT
Equipment: 10” Meade SCT
Eyepiece: Explore Scientific 4.7mm with 82° FOV
Magnification: x530
Seeing: Excellent (5)
Transparency: Very Good (4)
Temperature: 18° C
 |
R1: Hortensius is circular; its floor was in shadow. The west wall was very bright. Could barely see the 5 domes; they were noticed because of the slight darkening on the shadow side. C1: Could not see the summit craters on the Hortensius Domes in this session. |