Probably a stupid question? Is the southern cross star constellation only visible from the southern hemisphere

The sky doesn't suddenly change when you take one step across the equator. The constellations further to the north are generally known as "northern constellations", as for the southern ones also. From any point on Earth, half the sky is theoretically visible.



If you're on the equator you can see the entire night sky during the year, though those stars very close to the north and south celestial poles will be difficult to see so low to the horizon. You could see the North Star in theory, but you probably wouldn't in reality.



If you're 30 deg north, you can see all of the sky up to 30 deg from the Pole Star all year, because they never actually set below the horizon. They'll be high in the night sky at different times of the year, though. You can see the rest of the sky to 60 deg south at some part of the year at least. The further south they are, the less you see of them.



If you're 70 deg north (brrr...), you can see all of the sky up to 70 deg from the Pole Star all year, and the rest of the sky as far as 20 deg south at some part of the year.



If you're AT the North Pole (90 deg north), you can see all of the sky less than 90 deg from the Pole Star, in other words the whole northern sky, every night, but never anything south of the Celestial Equator.



It's the same for the south. From Sydney (34 deg south) I can see the Southern Cross and Pointers all year, because they're about 60 deg south (30 deg away from the South Celestial Pole, which is less than 34 deg). I have to be up in the middle of the night to see them in summer, though. The Great Bear I can see at night only in March- April, and I can only see its legs low near the northern horizon. The Big Dipper is never visible here, because it's more than 56 deg north (90 - 34 = 56).



So that's the long explanation. Short answer, the Southern Cross can be seen from southern Florida, low to the horizon, for a short time each northern summer.Probably a stupid question? Is the southern cross star constellation only visible from the southern hemisphereNo, it's visible for at least part of the year for people as north as 30 north. ie it has a declination of South 60 at Lat South 60 it would be directly overhead so subtract 90 and it would be on the horizon ergo - North 30 is the limit.Probably a stupid question? Is the southern cross star constellation only visible from the southern hemisphere
Yes it is a stupid Question, look how many bozo's answered tho. Frightening.Probably a stupid question? Is the southern cross star constellation only visible from the southern hemisphereIt is - at least if you're not too far north.Probably a stupid question? Is the southern cross star constellation only visible from the southern hemisphere
If you were exactly at the north pole (latitude = 90 N), you'd see only stars that are north of the celestial equator.



If you were at latitude 45 N, The highest part of the celestial equator in your sky would be 45 degrees above the southern horizon. You could therefore see stars with declinations as far south as 45 S (if only briefly as they pass the meridian).



The southernmost star of the Southern Cross has a declination of 63 S. This means that it should be visible from a latitude of 27 N.Probably a stupid question? Is the southern cross star constellation only visible from the southern hemisphereYes. The Northern and Southern Hemispheres each have their own sets of constellations.Probably a stupid question? Is the southern cross star constellation only visible from the southern hemisphere
The Southern Cross is visible from the northern hemisphere as long as you are not too far north of the equator.



Check the star maps on Heavens Above site for your location to see when it is visible.
Alpha Crucis is at declination -63 degrees, so the Southern Cross clears the horizon, even if only briefly, anywhere south of (90 - 63) = 27 degrees north.



I've observed it from Costa Rica at 10 degrees north.