IWLOP #014 – Vallis Rheita
A spectacular lunar valley that is the longest and widest visible from Earth.
Location: 42.0 S 51.0 E Origin: May have formed with Nectaris Basin Size: 500 km in length Rukl: 68 Type: Valley
Objects: Rheita, Vallis Rheita, Young & Young D, Mallet & Mallet A, Neander
Others Identified: Reimarus
This session was conducted as part of the lunar observing session - Lunar Session - April 15, 2021.
Observation 1:
Location: Home
Date: 2021-04-15
Time: 8:10 PM ADT
Equipment: 10" Meade SCT, 4.7 mm eyepiece
Magnification: x530
Transparency: Good (3)
Seeing: Very Good (4)
R1: Vallis Rheita appeared to run north-south, beginning as a thin strip near Reimarus, widening at Mallet and appeared almost like a ribcage as it went northward towards Rheita. Rheita's peak appeared elongated, i.e., linear not circular in appearance.
Observation 2:
Location: Home
Date: 2021-05-15
Time: 9:00 PM ADT
Equipment: 10" Meade SCT, 4.7 mm eyepiece
Magnification: x530
Transparency: Good (3)
Seeing: Very Good (4)
C1: Elongated crater NE of Rheita appeared to have a flat floor; the area in its NW appeared rugged/terraced.
C2: Craters Young, Young D, Mallet and Mallet A were found. Did not find Neander on April 15 nor in this evening's observations.
Observation 3:
Location: Home
Date: 2021-05-16
Other details not recorded
C2: Neander found during this evening of observing other lunar objects.
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