CONTACT FAQS FACEBOOK TWITTER GOOGLE YOUTUBE BASICS SOLAR SYSTEM PLANETS CONSTELLATIONS STARS FACTS TOP 10 LISTS ENTERTAINMENT REVIEWS BOOK REVIEWS OBSERVING TELESCOPES TELESCOPE NEWS TICKER HUMAN BROADCASTS REACHED EVENTS STAR CONSTELLATION ANTLIA CRATER PUPPIS PYXIS SEARCH THE NIGHT LARGEST CONSTELLATION HYDRA PETER WATER THE CREATURE NAME HUGE BODY SLITHERING 100 DEGREES COVERING OF THE NIGHT THE 88 GRAND STATUS THE CONSTELLATIONS TAKING ALMOST SEVEN HOURS RISE HYDRA BOASTS JUST ONE ORANGE GIANT REPRESENTING THE HEART LOCATION LOOK NORTHERN HEMISPHERE BELOW CANCER POINT LYING CENTAURUS TAIL BORDERS NUMBER CANIS MINOR SEXTANS HERCULES FAMILY BELONGS TO FAMILY GROUP CONSISTING OF CORONA AUSTRALIS OPHIUCHUS TRIANGULUM VULPECULA MYTHOLOGY THE HYDRA CREATURE HERCULES SENT BATTLE THE GIANT SNAKE PROVED FORMIDABLE TASK THE GREEK ONCE HEADS CUT GROW GODDESS HERA ALREADY GIANT ATTACK THE EVER ENLISTED THE HELP BURN DECAPITATED NECK STUMP PREVENT KING EURYSTHEUS TWELVE LABORS LABOR FIFTH AUGEAN STABLES LEGENDARY STRONGMAN PUNISHMENT METEOR SHOWERS LESS THAN ALPHA RUNS JANUARY 15TH 30TH THE PEAK FEWER METEORS HOUR THE OTHER SHOWER SIGMA DECEMBER 5TH PEAKING YIELDS THE ACTUAL SHAPE MADE UP ASTERISM ONLY 17 FIRST MAGNITUDE MAGNITUDE CONFIRMED ALPHARD LIGHT YEARS AWAY LUMINOUS TRANSLATES SOLITARY THREE TIMES THE MASS OF THE SUN TIMES MILLION YEARS CLASSIFICATION OF ALPHA HYDRAE ALSO KNOWN AS COR HYDRAE THE HEART OF THE SERPENT TYCHO BRAHE FAMOUS DANISH BETA HYDRAE SYSTEMS PRINCIPAL COMPONENT THE SYSTEM CHEMICALLY CLASS B STRONG MAGNETIC FIELD CLASSIFIED CANUM VENATICORUM TYPE VARIABLE THE COMBINED APPARENT VISUAL MAGNITUDE VALUE PERIOD GAMMA HYDRAE YELLOW GIANT STAR LIGHT YEARS ZETA HYDRAE BRIGHTNESS DISTANCE HD 122430 THE ONLY PLANET VISIBLE OPTICAL SEEING CONDITIONS THE PLANET ORBITING THE STAR ORBITAL PERIOD PARENT EARTH NAKED EYE VISIBILITY LUMINOSITY COOL RED SIZE OF EARTH DEEP SKY OBJECTS MESSIER 48 NGC 2548 DISCOVERED CHARLES MESSIER OPEN CLUSTER BINOCULARS GOOD THE CLUSTER MESSIER 68 NGC 4590 GLOBULAR MESSIER TARGET APERTURES THE BEST VIEW BEAUTIFUL GALAXY CLUSTER GALAXY CLUSTERS BRIGHT SPAN TEN MILLION ELLIPTICAL GALAXIES GALAXIES THE MILKY WAY CLUSTER OF GALAXIES PROPORTION DARK MATTER MILLION LIGHT YEARS AWAY SUPERCLUSTER FALL IN NORMA SOUTHERN PINWHEEL GALAXY NGC 5236 FRENCH ASTRONOMER NICOLAS LOUIS DE LACAILLE VISIT THE CAPE OF GOOD HOPE BARRED SPIRAL GALAXIES EASY BINOCULAR BEARS STRONG THE PINWHEEL GALAXY URSA SUPERNOVA EXPLOSIONS IDENTIFIED THE LAST GHOST OF JUPITER CALDWELL WILLIAM HERSCHEL PLANETARY NEBULA EDITION THE GENERAL THE EYE THE GHOST PLANETARY NEBULA AMATEUR MODEST LONG AGO CLYDE TOMBAUGH DETERMINE NATURE GLOBULAR CLUSTERS BILLION YEARS OF 10 RELATED ASTRONOMY INTERESTING POLARIS NORTH CELESTIAL POLE WHITE SUPERGIANT AWAY URSA MINOR APPARENT MAGNITUDE THE NIGHT SKY TABLE INFORMATION DETAILS SMALLER MODERN DIMINUTIVE STATURE PROCYON THE EIGHTH STAR IN THE NIGHT POPULAR BIZARRE PARADOXES TIME TRAVEL EXPLAINED BETELGEUSE BLACK HOLES GEMINIDS METEOR SHOWER SPACE WARS POTENTIAL CONFLICT AREA THE 21ST CENTURY SPACE INDUSTRY SPACE DEBRIS DANGER FUTURE MISSIONS OFFICIALLY STAR NAMES SELECT CATEGORY ASTRONOMY HISTORY GENERAL ARCHIVES MONTH COPYRIGHT TREK