IWLOP #089 - Timocharis

Prominent crater located near the middle of Mare Imbrium.

Location: 29.0 N 13.0 W    Origin: Impact    Size: 34 km    Rukl: 21     Type: Complex Crater (CC)

Objects: Timorcharis, Feuillée, Beer, Heinrich, Dorsum Higazy, Dorsum Grabeau, Landsteiner
Others Identified: Archimedes, Bancroft, MacMillan, Montes Archimedes, Wallace

Observation 1:
Location: Home

Date: 2021-04-20
Time: 9:47 PM ADT
Equipment: 10" Meade SCT
Eyepiece: Explore Scientific 4.7mm with 82° FOV with x2 Barlow

Magnification: x1060
Seeing: Good (3) 
Transparency: Very Good (4)

R1: Floor of Timocharis was completely in shadow during this session; couldn't see any of the floor.
R2: Feuillée, Beer and Heinrich were easily located. Feuillée and Beer were located on the west side of Montes Archimedes; both were small and round. Heinrich in the southwest was even smaller.

C1: Dorsum Higazy seemed to begin near Heinrich and curve around Timocharis until it approached Dorsum Grabeau.
C2: Landsteiner was NW of the lower part of Dorsum Grabeau.

 

Observation 2:
Location: Home

Date: 2021-06-20
Time: 10:28 PM ADT
Equipment: 10" Meade SCT
Eyepiece: Explore Scientific 4.7mm with 82° FOV

Magnification: x530
Seeing: Very Good (4) 
Transparency: Excellent (5)
Temp: 20º C
SQM: 18.34

R1: Ejecta field around the crater but most of spray appeared to head towards Archimedes, almost reaching Feuillée and Beer. Only the east rim created a shadow on the east wall. While the actual floor was small, walls were thick and the west wall was ridged. The crater floor was completely visible, perhaps the dark point/shadow was evidence of a central peak.

 

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