From what Month to what Month are these constellation visible?

when can you see these constellations (month wise) from Oxford, UK, Earth

Lyra

Cygnus

Hercules

thank youFrom what Month to what Month are these constellation visible?You can see all those constellations throughout the year since at your latitude, they are practically circumpolar. You just have to figure out what time of the night is best for you to view them.From what Month to what Month are these constellation visible?First you should understand that all these constellations are initially visible in the east in the early morning before dawn. Each month these constellations rise (and set) 2 hours earlier than the previous month. So a constellation like Lyra will be first visible in the east before dawn in February or March and will be last visible in the west after sunset in November.

Since you live in the Northern Hemisphere, the further north in declination the constellations are, the longer they are visible throughout the year. Far north constellations like Ursa Major and Cassiopeia are always above the horizon at your latitude on any clear night.

Download Stellarium to figure out the rest.
http://www.stellarium.orgFrom what Month to what Month are these constellation visible?They are all visible just now from Oxford ...i have been observing a few nice objects in them just the last few nights...
Cygnus and lyra are high in the sky at midnight. Their bright stars are easy to spot.
(it depends on you location - latitude on the planet)...

This Planetarium Software will tell you exactly where they are in the sky
http://www.stellarium.org/

Hercules
http://en.wikipedia.org/wiki/Hercules_%2鈥?/a>