IWLOP #002 – Eastern Basin Group
A number of small maria and a sinus in the region between Crisium and Fecunditatis. These features can be observed either during the waxing crescent phase, or the waning gibbous phase just after Full Moon. In addition, most basins can be seen whenever in sunlight.
Location: 1.0 N 69-58 E Origin: Volcanic Size: Various Rukl: 38 Type: Mare-Basin, Sinus
Objects: Mare Undarum, Mare Spumans, Sinus Successus, Condorcet, Firmicus, Apollonius
Others Identified: Neper
Location: Home
Date: 2019-03-20
Time: 10:16 PM ADT
Equipment: 6" Dobsonian, 15 mm Plösl
Magnification: x80
Seeing: Very Good (4)
Transparency: Good (3)
R1: Mare Undarum ("Sea of Waves"), a wishbone-shaped area with two main sections, was seen in the libration. Sketched the area in IWLOP L2: Mare Marginus (see below).
R2: Mare Spumans ("Foaming Sea") is easily located south of Mare Undarum.
R3: Sinus Successus ("Bay of Success") is located adjacent to Mare Spumans.
C1: Condorcet is above Mare Spumans. Firmicus is adjacent to Mare Undarum. Apollonius located half way between Firmicus and Sinus Successus.
NOTE: Initially, I thought Sinus Successus was Mare Fecunditatis until I looked more closely at the shape and identified it using the S&T Moon Map.
