>Betelgeuse grand minimum is not that grand
For a few months from now Betelgeuse (Alpha Orion) dim so much, that it looks as bright as the stars in the Orion belt. This is not so disturbing and does not mean that cataclysmic events are happening with it. This brightness lost is mostly in the visual spectrum. The star is still shining as the brightest one in the constellation, when looked into the inferred spectrum. Below is comparison of the Orion constellation seen in visible and inferred light. In visible Rigel (Beta Orion) seems to be the brightest star. However in Inferred, Betelgeuse outshines it quite a lot.
We all hope that this star will explode in near future, so we will have some nice target for shots and research. For our luck it is just far enough not to cause any troubles :)
Orion in Infrared:
Betelgeuse spectrum. White is infrared, Orange is Halpha.
To check the polar alignment of your telescope look trough the polar scope. When turning the Ra axis the polar star should move in the exact circle in the eyepiece without any deviation.
Removing the DSLR build in IR-cut filter will give you at least 50% more sensitivity for hydrogen alpha emissions of the nebulas. Also the camera will be more light sensitive at dark allowing you to shoot more faint objects.
We can check what is like to process day shot with similar to astrophotography techniques. It is cloudy in Bulgaria for the next week or so and I took shots of the nearby mountain trough the fog with 200mm lens.
Most of the modern LED backlight screens including Laptops, TV and smart phones use PAM technique for Pulse-amplitude modulation. This means that they switch on and off state very rapidly.
Having a video background gives you a lot of expression and dynamics to your site.
There a few ways to put your video as a background of your page layout.