IWLOP #020 – Metius & Fabricus

These two prominent craters are nearly equal in size and structure with deep walls.

Location: 40.3 S 43.3 E     Origin: Impact      Size: 88 km, 78 km      Rukl: 68       Type: Simple crater (CS)

Objects: Metius, Metius B, Fabricus, Brenner, Brenner A
Others Identified: Brenner E, Janssen, Lockyer, Steinheil, Vallis Rheita, Watt 

Observation 1:
Location: Home

Date: 2021-05-15
Time: 9:28 PM ADT
Equipment: 10" Meade SCT, 4.7 mm eyepiece
Magnification: x530
Seeing: Excellent (5)
Transparency: Very Good (4)

R1: Metius B was located on the NE floor of Metius. Fabricus had me questioning why there was a darkness on the floor, like a large rille or rima encircling 3 of the 4 sides of the floor.

C1: Brennar looks like a small flame or leaf. Brennar A impacted on its SE rim and could also see E on its NE rim.

Observation 2:
Location: Home
Date: 2021-05-16
Time: 9:28 PM ADT
Equipment: 10" Meade SCT, 4.7 mm eyepiece + x2 Barlow
Magnification: x1060
Seeing: not recorded
Transparency: not recorded

Had a much clearer view of Fabricus.

NOTE: Discovered in Rukl 68 there are 2 central ridges that create shadows on 2 sides of the crater. The 3rd side is steep near the crater floor and casts another portion of dark shadow. With this magnification, there was clearer definition of the rises on the crater floor as shown in Rukl.

 

 

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