October 22, 2017

Astro-Challenge: Scouting Out the Lunar Straight Wall.

The waxing gibbous Moon with the Mare Nubium/Rupes Recta region circled. (Photo by Author)

An interesting lunar feature comes into view this week, right around 1st Quarter phase. Located in the Mare Nubium just before the start of the Lunar Highlands sits a feature known as the Lunar Straight Wall. 120 kilometers long and about 400 meters high, this scarp is hard to miss as a long shadow slice along the surface of the Moon. Visible in even small telescopes at moderate magnification, the Lunar Straight Wall is generally visible within 24 hours of 1st Quarter, which occurs this week at 04:56 AM EDT/ 08:56 AM GMT. [Read more...]

25.05.11: Catching Moon Shadows.

Two each shadows on the Jovian cloud tops. (Photo by Author).

This morning, the astro-news turns towards our very own personal exploits at the eyepiece. Thatís why we all blog in the end, right? To keep a sort of diary of our experience in this magnificent universe and so forth? I awoke at 5 AM EDT to begin gear load-out and setup. This is what folks who donít have an observatory typically do; an hour or so of lugging, prepping, and aligning only to find out that clouds are rolling in or the batteries are dying, or the scope is fogging up, or a million other things that send us headed back indoors. [Read more...]