The crater Tycho is
very prominent and the ray like pattern emerges from this
crater and can be distinguished with the unaided eye on
full moon days clearly.
Here is the area of Tyco crater the centre south of
the moon in this pic I took with a 6 inch Dobosonian
Newtonian reflector with a digital eyepiece,
I took pic s and videos, extracted frames from
videos and stacked about 700 frames to get his image. You
can see the Tycho (85 km) little towards the left of
the crater has a spot like protrusion, and it does not
show a ray like pattern like seen with the unaided eye.
Here, there is a bigger crater Longomotanus (145 km) right
Tycho, to the left of it is crater Wilhelm (107 km).
A larger crater is seen in the bottom centre Clavius (225
km), it is prominent and there are two craters –
Crater Rutherford and crater Porter which are on the ridge
of the crater Calvius on opposite sides. Inside the crater
Calvius you can see four craters spiraling down
decreasing in size, they are Clavius D, C, N, J, and
JA. This area of the moon is crater ridden with a lot of
stacked with RegiStax, 6 inch Dobsonian Newtonian
reflector - Video taken with digital eyepiece.
Photographed with a digital eyepiece Imaging Sensor:
1/4 Inch 1.3 Megapixel CMOS, Pixel Size 2.8μm x 2.8μm,
Sensitivity: 1.0 V/Lux-sec, Spectrum response 400nm -
1000nm about 180 frames e
xtracted and stacked. Diameter of Primary Mirror: 153mm,
Focal Length: 1200mm, Resolving Power: 0.74, Focal ratio:
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