Next year, Sirius makes its first morning appearance about July 25th. This year its last appearance in the western sky after is about June 10th

@@JeffreyHuntil Thank you

Earthshine is from sunlight reflecting from Earth's daytime side. During a lunar eclipse, the moon is on the unlit side, although red and orange sunlight are bent through Earth's atmosphere to gently light up the eclipsed moon.

@@JeffreyHuntil actually a lunar eclipse occurs during a full phase, not when the moons on its unlit side

@@Ilikebritishluxurycars Of course, the question was about earthshine. There's quite a bit of moonshine at the Full phase, an effect similar to earthshine.

Why should he say fake information in the video about the celestial sphere?

@@eMBO_Gaming like earth is a warp speed traveling water ball???gtfoh

@@unarammer2003 Nope, the fact that the Earth is what you just caricaturally described is the reason why the celestial coordinates are possible in the first place.

@@eMBO_Gaming sun worshippers disgust me...take your talmud and use it for toilet paper like I do,put it to some good use...

@@unarammer2003 If your mental capacity is so retarded, that after hearing that the Sun is the centre of the solar system the first thought that comes to your brain is to fucking worship it, it's not the problem of the reality, but rather your brain. When solar eclipse happens, do you also run away terrified, that satan ate it?

It gets coverage everywhere

Glad it was helpful!

Glad it was helpful!

Theoretically, yes; At least two issues (1) The celestial equatorial system's longitude is measured in hours and minutes, rather than degrees. 1 hour of right ascension is 15 degrees. (2) The celestial system is measured eastward from the vernal equinox, coordinates 0h, 0 degrees. The terrestrial coordinate system is measured eastward and westward from the 0 degree prime meridian. (others) Further the starting points 0h, 0 degrees on the sky does not match up with the 0,0 on the earth constantly. So knowing the date and time is essential for that conversion. Latitude is easy to determine -- look straight up during any time of the night. Any star that is there indicates your latitude. Look up the star's declination. That's your latitude.

@@JeffreyHuntil thanks for your reply. I also found handy the "azimuth grid" of Stellarium app. The center of this grid is the vertical from earth to sky.

@@oliverargires Also note that the equatorial grid as well as the ecliptic grid are in stellarium as well. The equatorial grid is the system that your original question referenced. The azimuth grid references the direction and height above the horizon to the celestial object. The alt/az system is time and date dependent. The equatorial coordinates are essentially constant over time (although subject to precession), but for our purposes here unchanging. Thanks for your questions! -jlh

@@JeffreyHuntil you're right, thanks!

do your saying as a navel officer , it is just NOW you understand but back then as Navel Officer you didn’t know much and you handled weapons of mass destruction.

@@ashzole sure as a “navel” officer he was probably belly surfing with a handheld gps which are used to navigate these days instead of navigating by the stars (which by itself is very cool though)

hey alcatraz cleopatra, you know how to navigate by the stars ? Ever see a compass or a been inside a sextent looking for your little dipper?

@@Truthwelltoldtr lol

Yes, it precesses with a period of about 18k years

Before we take these points further, please read Alan Hirschfeld's Parallax: The Race to Measure the Cosmos.

L.A. yes I'd also like to know as I just got a new telescope. let me know if you found out how please

The polar chart shows the sky from 30 degrees N to 90 degrees -- the north celestial pole. The circles on the chart at 10 degrees apart, starting with 30 degrees as the outside circle. The point at the center is 90 degrees -- the celestial pole. Thanks for your question seeking clarification.

Have no idea what that means, but yes that was round about the time gender bending BS came full swing