Crater J Herschel

Lunar Crater J Herschel

Crater J Herschel
Crater J Herschel

It is morning across the 165 km wide irregular floor of this walled plain
crater. J Herschel is a pre-Nectarian crater and in the observing light is well lit across its rubbly, slightly convex floor. This crater is a survivor of the Imbrium basin formation. The southern well defined outer rim to the south (to the left in the sketch) has its rampart buried under the lavas of Mare Frigoris. Along the south wall at the west end is crater Horrebow (26 km) which can be seen superimposed upon Horrebow A (25 km.). To the right and closer to the terminator and limb are craters Anaximander (70 km.) and Carpenter (61 km.) both of their rims are illuminated and only part of the floor of the former can be seen.

Sketching:
For this sketch I used: black Strathmore 400 Artagain paper, white and black Conte’ pastel pencils and a blending stump.
Telescope: 10 inch f/ 5.7 Dobsonian and 9 mm eyepiece 161X

Date: 05-3-2012 02:10 – 03:30 UT
Temperature: 21° C (70° F)
Partly cloudy, calm
Seeing: Antoniadi III
Colongitude: 53 °
Lunation: 11.8 days
Illumination: 86.6 %
Altitude of Moon about 41°

Very favorable libration for this crater

Frank McCabe


2 thoughts on “Lunar Crater J Herschel”

  1. Great work Frank!! you are the Master with this thechnics,this is one of my favourite crater.i hope to sent my last sketches but…i sent recently without success to asod…..
    Ciao,Giorgio.

  2. Hi Giorgio,

    Thank you.
    I am sure your sketch will come up soon.
    There are more submissions these days and they are all great to see.
    I look forward to your next post here.

    Frank 🙂

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