Friday, January 20, 2012

Do I need to learn the constellations by heart?

I can find the basics with ease (Orion, Taurus, Auriga, etc.) With a star chart I can find many more, but is it really nessicary to learn each by heart? To be able to find every constellation without the aid of a star chart?Do I need to learn the constellations by heart?I never took the time to memorize them, I just learned them through repeated exposure to them. Living at 45 degrees North, and rarely doing any traveling at all, there are several southern circumpolar constellations that I am not very familiar with.



I can not name all 88 off the top of my head, and very rarely has that limit in knowledge made my hobby less gratifying.Do I need to learn the constellations by heart?It is not necessary. You can always consult some Astronomy book listing them all.
It is better you learn constellations on the Ecliptic (Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, Pisces and also Orion, Auriga, Hydra, Pegasus, Cetus that lie close by) as this is the path through which Sun moves and others (including Moon) move with deviations of a few degrees. Then get familiar with the constellations of the Milkyway. Follow it up with what you can see of those constellations with the first 20 brightest stars (the 3 Cs - Canis Major, Carina, Centaurus; also Bootes, Lyra, Canis Minor, Eridanus, Aquila, Crux, Pisces Austrinus %26amp; Cygnus). Unfortunately we in Northern Hemisphere can't see a sizable chunk of southern constellations, with the 2nd, 4th and three more of the 20 brightest. Hercules %26amp; Ophiuchus that is located exactly on the other side of Orion with disjointed constellation: Serpens (Cauda to the right and Caput to the left if the Pole Star is at the back of your head) on either side.
Even then you wouldn't get familiar with faint but big constellations like Telescopium, Microscopium, Camelopardalis, Monoceros, without effort.Do I need to learn the constellations by heart?Learning constellations is just something that happens over time as you spend time under the stars. I've never consciously made any effort to learn any constellations, yet I probably know more than half of them, being weakest on those in the southern circumpolar regions, since I've spent relatively little time in the Southern Hemisphere. There are probably only a handful of northern constellations that I can't find, but I know enough of the others so that, with an atlas, I can locate these when I need to (notably Camelopardalis, Lacerta, Equuleus, and Sextans). I'm always a bit vague on the constellations south of Pegasus (Cetus, Aquarius, etc.)Do I need to learn the constellations by heart?
Eh, ..., It's not a bad idea but I never consciously memorized them. Just repeated exposure over and over again I got to know them. I will say though those who are able to not only able to memorize them but all the objects within as well as positions of the stars within each are the ones discovering comets, new nebulae, and asteroids.

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