SkyDiary
Image Credit: NASA/Bill Ingalls

Find out what’s up in the night sky:
Upcoming astoronomical events, interesting observations, packed with everything a stargazer needs to know.

Observations are described for the NORTHERN hemisphere and can be made by naked eye, small binoculars or by small telescope.

November 2018

Phases of the Moon

New Moon:November 07
First Quarter:November 15
Full Moon:November 23
Last Quarter:November 30

Venus

Venus rises in the morning and becomes the "morning star", very bright (around -4 mag). You can observe it by naked eye after November 15 when it will be quite high on the sout-eastern sky around 5 a.m. local time.

Mars Observation: Great perihelic opposition 2018

The diameter of Mars' disk is now only about 10 arc-seconds. To see some details on its surface (the south polar cap, dark albedo features), you will need a large telescope (the diameter of 20cm at least) and large magnification (around 200x -300x). Additionally, you will need also a very good seeing (i.e., a small air turbulence), because high magnifications can not be used in bad seeing (wind, large gradient of temperature, etc). There is a summer on the southern hemisphere and a winter on the northern hemisphere on Mars now. The south polar cap diminishes rapidly and becomes very difficult to observe. This is also a period of possible dust storms that can arise on the southern hemisphere (e.g., in Hellas) and spread over the whole globe.

Article by (C) G. Okša