Is it true that we see the center of the milky-way for only half of the year? I'm not an astronomer, please excuse my non-formal language.
Since we are located in one of the arms of the Milky way, the center of the galaxy should be in one direction from our location, while in the other direction, we stare into the &quot;other side&quot;.
So at nights as we are in the orbit area that is between the sun and the center of the galaxy we are able to see the center (the &quot;milky-way&quot;), while when in the other side of the orbit, at nights, we are not able to see it.
Does this mean we only see the milky way (meaning the milky-way's famous pattern) half of the year?
In the below diagram, the small circle is our year-orbit around our sun. Red dot is the earth location on day 0 of the year and the green dot is the earth location on day 180th of the year.
I know that as we are orbiting our sun, it also orbits the galaxy, but since it is so slow, it is negligible for this questions.

Is this reasonable?
I mean, if we look at the sky, we will see the center of the galaxy only during half of the year?
No, although there are times when it can't be seen, it isn't true that it is visible for 183 days of the year.
The general question could be &quot;If I take an arbitrary location on the sky (say a randomly chosen star) will it be visible for half the year?  The answer is &quot;it depends on the star!&quot; Polaris and many other stars are circumpolar for Northern hemisphere observers and are visible every night,  contrariwise, Polaris is never visible for Southern Hemisphere observers.
Now, the galactic centre happens to be located in Sagittarius, so co-incidentally is quite close to the plane of the solar system.  This means that for about two months of the year, the sun is too close to make observations easy, certainly in visible light from the Earth's surface.  At other times it will be visible, perhaps briefly.  Sagittarius and the galactic centre are also quite a few degrees South of the equator, so it is more easily visible from the southern hemisphere.
At 50 degrees North, The galactic centre sets at twilight at the start of October and doesn't rise until dawn at the middle of February,  between February and October (about 7½ months) the galactic centre is above the horizon at some point during the night. (The exact number of days depends on your definition of &quot;dawn&quot; and &quot;above the horizon&quot;) More southerly observers will see the galactic centre for longer. 50 degrees South, the galactic centre is above the horizon at some time during the night between January and November.  In Antarctica, the galactic centre is circumpolar, and so is above the horizon every night. But as the summer sun in Antarctica doesn't set, there are days when you can't &quot;see&quot; it. The optimum location would be 30 degrees South (or in space)