Tag Info

Hot answers tagged

3

The Lunar Reconnaissance Orbiter is still up there. At a compact 2000kg, it's likely too small to see via earth based telescope. Mission Page I think the Chinese orbiter is back on earth now, but there may be others.


3

The answer to your simple question is that while a circular orbit could remain in the absence of any other gravitational fields, in reality you'll have an ellipse and it can be stable from the beginning, remember stable has a wide range of values. If you allow drag through tidal forces etc then the orbit will change, eg our Moon is slowly getting further ...


2

First of all *not to consider me a conspiracy theorist(, but isn't landing on the moon a questionable issue? Only to conspiracy theorists. To everyone else, no, it's not a questionable issue. My father in law helped send men to the Moon. I have worked with a number of people who sent men to the Moon. I was once called on the carpet in Gene Kranz's ...


2

How can a planet capture a moon? There are 178 moons in the Solar System, according to the NASA Planetary Fact Sheet, so it seems to be a common event. The following sections will show that moon capture is actually unlikely, but when a planet has one or more moons capture becomes easier. Initial Conditions Starting from the initial conditions, the planet ...


1

Does the Moon phase still affect the visibility of the Milky Way even if it is not above the horizon? No. The main culprit is the Sun. Lunar twilight is extremely weak. It essentially ends when the Moon goes below the horizon. See this answer at the physics stackexchange. One problem is that this is the wrong time of the year to be looking at the Milky ...


1

Moon Phase With the moon phase, it's going to be in Waning Gibbous on March 9th, so it will be reflecting a lot of light back to earth. Any light that interferes with the sky will make dimmer objects harder to see. The Moon's reflectivity figures taken from here: Fraction of the moon: 0.61371425766053 Illumination of the moon disk: 88 % ...


1

Often it helps to use colored filters that screw into the base of your eyepieces. They can increase the contrast of the details you are looking for. They are not very expensive and work quite well for this. You can also find used ones on many of the amateur astronomy sites that have a "classified" section. Different colors work better depending on the colors ...


1

Every scope has a minimum and maximum useful magnification (minimum on your scope is 18X and maximum is 152X - from specs on Telescope.com). Anything outside of those numbers will compromise your ability to see well through the scope. To figure out how best to make use of your scope within the restrictions of useful magnification, you need to start with how ...



Only top voted, non community-wiki answers of a minimum length are eligible