Here is a few ideas on planets and suns
SUNS
SINGLE
STANDARD ONE SUN STAR SYSTEM
BINARY
TWO STAR SYSTEM
TRINARY
THREE STAR SYSTEM
QUADRINARY
FOUR STAR SYSTEM
STAR TYPE
CLASS O
COMPOSITION IONIZED ATOM'S,ESPECIALLY HELIUM
COLOUR DARK BLUE
TEMPERATURE 28,000-50,000*K
CLASS B
COMPOSITION NEUTRAL HELIUM,SOME HYDROGEN
COLOUR BLUE
TEMPERATURE 10,000-28,000*K
CLASS A
COMPOSITION STRONG HYDROGEN,SOME IONIZED METALS
COLOUR LIGHT BLUE
TEMPERATURE 7,000-10,000*K
CLASS F
COMPOSITION HYDROGEN&IONIZED METALS,CALCIUM&IRON
COLOUR WHITE
TEMPERATURE 6,000-7,500*K
CLASS G
COMPOSITION IONIZED CALCIUM,BOTH NEUTRAL&IONIZED METALS/
COLOUR YELLOW
TEMPERATURE 5,000-6,000*K
CLASS K
COMPOSITION NEUTRAL METALS
COLOUR ORANGE
TEMPERATURE 3,000-5,000*K
CLASS M
COMPOSITION IONIZED ATOMS,ESPECIALLY HELIUM
COLOUR RED
TEMPERATURE 2,000-3,000*K
PLANETS
CLASS A
TYPE GEOTHERMAL
AGE 0-2 BILLION YEARS
DIAMETER 1,000-10,000KM
SURFACE PARTIALLY MOLTEN
ATMOSPHERE PRIMARITY HYDROGEN COMPOUNDS
EVOLUTION COOLS TO C CLASS
LIFEFORM NONE
SURFACE 2 MOLTEN
CLASS B
TYPE GEOMORTEUS
AGE 0-10 BILLION YEARS
DIAMETER 1,000-10,000 KM
SURFACE PARTIALLY MOLTEN,HIGH SURFACE TEMP
ATMOSPHERE EXTREMELY TENUOUS,FEW CHEMICALLY GAES
EVOLUTION NONE
LIFEFORM NONE
SURFACE 2 BARREN
CLASS C
TYPE GEOINACTIVE
AGE 2-10 BILLION YEARS
DIAMETER 1,000-10,000 KM
SURFACE LOW SURFACE TEMPERATURE
ATMOSPHERE FROZEN
EVOLUTION NONE
LIFEFORM NONE
SURFACE 2 ICY
CLASS D
TYPE ASTEROID/MOON
AGE 2-10 BILLION YEARS
DIAMETER 100-1,000 KM
SURFACE BARREN&CRATERED
ATMOSPHERE NONE POR VERY TENUOUS
EVOLUTION NONE
LIFEFORM NONE
SURFACE 2 ROCKY
CLASS E
TYPE GEOPLASTIC
AGE 0-2 BILLION YEARS
DIAMETER 10,000-15,000 KM
SURFACE MOLTEN,HIGH SURFACE TEMPERATURE
ATMOSPHERE HYDROGEN COMPOUNDS&REACTIVE GASES
EVOLUTION COOLS TO BECOME A F CLASS
LIFEFORM CARBON CYCLE {EXCALBIAN}
SURFACE 2 MOLTEN
CLASS F
TYPE GEOMETALLIC
AGE 1-3 BILLION YEARS
DIAMETER 10,000-15,000 KM
SURFACE VOLCANIC ERUPTION DUE TO MOLTEN CORE
ATMOSPHERE HYDROGEN COMPOUNDS
EVOLUTION COOL TO A G CLASS
LIFEFORM SILICON{HORTA}
SURFACE 2 TOXIC
CLASS G
TYPE GEOCRYSTALLINE
AGE 3-4 BILLION YEARS
DIAMETER 10,00-15,000 KM
SURFACE STILL CRYSTALLIZING
ATMOSPHERE CARBON DIOXIDE,SOME TOXIC GASES
EVOLUTION COOLS TO BECOME K,L,M.N,O,P
LIFEFORM PRIMATIVE SINGLE CELL ORGANISMS
SURFACE 2 TOXIC
CLASS H
TYPE DESERT
AGE 4-10 BILLION YEARS
DIAMETER 8,000-15,000 KM
SURFACE HOT&ARID, LITTLE OR NO SURFACE WATER
ATMOSPHERE MAY CONTAIN HEAVY GASES&METAL VAPOR
EVOLUTION NONE
LIFEFORM RADIATION-RESISTANT PLANTS,ANIMAL LIFE
SURFACE 2 DESERT
CLASS J
TYPE GAS GIANT
AGE 2-10 BILLION
DIAMETER 50,000-140,000 KM
SURFACE TENUOUS, COMPRISED POF GASEOUS HYDROGEN&HYDROGEN COMPOUNDS; RADIATES SOME HEAT
ATMOSPHERE ZONE MAY VARY IN TEMPERATURE,PRESSURE&COMPOSITION
EVOLUTION NONE
LIFEFORM HYDROCARBON BASED{JOVIAN}
SURFACE 2 GAS
CLASS K
TYPE ADAPTABLE
AGE 4-10 BILLION YEARS
DIAMETER 5,000-10,000 KM
SURFACE BARREN, LITTLE OR NO SUFACE WATER
ATMOSPHERE THIN, MOSTLY CARBON DIOXIDE
EVOLUTION NONE
LIFEFORM PRIMATIVE SINGLE CELL ORGANISMS
SURFACE 2 BARREN
CLASS L
TYPE MARGINAL
AGE 4-10 BILLIOM YEARS
DIAMETER 10,000-15,000 KM
SURFACE ROCKY&BARREN,LITTLE SURFACE WATER
ATMOSPHERE OXYGEN/ARGON,HIGH CONCENTRATION OF CARBON DIOXIDE
EVOLUTION NONE
LIFEFORM LIMITED TO PLANT LIFE
SURFACE 2 ROCKY&BARREN
CLASS M
TYPE TERRESTRIAL
AGE 3-10 BILLION YEARS
DIAMETER 10,000-15,000 KM
SURFACE SURFACE WATER ABUNDANT EXTENSIVE VEGETATION
ATMOSPHERE NITROGEN, OXYGEN, TRACE ELEMENTS
EVOLUTION NONE
LIFEFORM EXTENSIVE VEGETATION, ANIMAL LIFE HUMANOIDS
SURFACE 2 TERRAIN
CLASS N
TYPE REDUCING
AGE 3-10 BILLION
DIAMETER 10,000-15,000 KM
SURFACE HIGH SURFACE TEMPERATURE DUE TO GREENHOUSE EFFECT; WATER EXISTS ONLY AS VAPOUR
ATMOSPHERE EXTREMELY DENSE, CARBON DIOXIDE&SULFIDES
EVOLUTION NONE
LIFEFORM UNKNOWN
SURFACE 2 TOXIC
CLASS O
TYPE PELAGIC
AGE 3-10 BILLION YEARS
DIAMETER 10,000-15,000 KM
SURFACE LIQUID WATER COVES 80% OR MORE OF SURFACE AREA
ATMOSPHERE NITROGEN,OXYGEN, TRACE ELEMENTS
EVOLUTION NONE
LIFEFORM AQUATIC VEGETATION, ANIMAL LIFE
SURFACE 2 OCEAN
CLASS P
TYPE GLACIATED
AGE 3-10 BILLION YEARS
DIAMETER 10,000-15,000 KM
SURFACE ICE COVERS 80% OR MORE OF SURFACE AREA
ATMOSPHERE NITROGEN, OXYGEN, TRACE ELEMENTS
EVOLUTION NONE
LIFEFORM HARDY VEGETATION, ANIMAL LIFE
SURFACE 2 ICE
CLASS Q
TYPE VARIABLE
AGE 2-10 BILLION YEARS
DIAMETER 4,000-15,000 KM
SURFACE RANGES FROM MOLTEN TO WATER AND/OR CARBON DIOXIDE ICE, DUE TO ECCENTRIC ORBIT OR VARIABLE OUTPUT OF STAR
ATMOSPHERE RANGES FROM TENUOUS TO VERY DENSE
EVOLUTION NONE
LIFEFORM NONE
SURFACE 2 UNKNOWN
CLASS R
TYPE ROGUE
AGE 2-10 BILLION YEARS
DIAMETER 4,000-15,000 KM
SURFACE MAY BE TEMPERATE DUE TO GEOTHERMAL VENTING
ATMOSPHERE PRIMARILY VOLCANIC OUTGASSING
EVOLUTION NONE
LIFEFORM NON-PHOTOSYNTHETIC PLANTS,ANIMAL LIFE
SURFACE 2 UNKNOWN
CLASS S-T
TYPE ULTRA GIANT
AGE 2-10 BILLION YEARS
DIAMETER 10-50 MILLION KM{CLASS S}
50-120 MILLION KM{CLASS T}
SURFACE TENUOUS, COMPOSED OF GASEOUS HYDROGEN AND HYDROGEN COMPOUNDS; RADIATES CONSIDERABLE HEAT
ATMOSPHERE ZONES VARY IN TEMPERATURE, PRESSURE AND COMPOSITION; WATER MAY STILL BE PRESENT
EVOLUTION NONE
LIFEFORM UNKNOWN
SURFACE 2 GAS
CLASS Y
TYPE DEMON
AGE 2-10 BILLIOM YEARS
DIAMETER 10,000-50,000 KM
SURFACE TEMPERATURE CAN EXCEED 500*K
ATMOSPHERE TURBULENT, SATURATED WITH TOXIC CHEMICALS AND THERMIONIC RADIATION
EVOLUTION NONE
LIFEFORM MIMETIC
SURFACE 2 TOXIC