🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.56 AU - 0.66 AU

Year: 303 Days

Day: 36.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 1.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,731,495 km

• M1: 152,889 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.5

Radius: 12.9

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.71 AU - 0.83 AU

Year: 430 Days

Day: 14.8 Hours

Environment

Temp: -143 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,731,495 km

• M1: 160,519 km (0.104 R)
• M2: 582,983 km (0.078 R)
• M3: 1,020,557 km (0.031 R)
• M4: 1,456,784 km (0.042 R)
• M5: 2,220,332 km (0.067 R)
• M6: 2,725,972 km (0.12 R)
• M7: 3,284,421 km (0.064 R)
• M8: 3,746,080 km (0.09 R)
• M9: 4,832,610 km (0.111 R)
• M10: 5,586,284 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515.4

Radius: 11

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.08 AU - 1.22 AU

Year: 784 Days

Day: 13 Hours

Environment

Temp: -175 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,731,495 km

• M1: 136,882 km (0.075 R)
• M2: 499,956 km (0.107 R)
• M3: 842,685 km (0.095 R)
• M4: 1,692,251 km (0.051 R)
• M5: 2,455,799 km (0.12 R)
• M6: 2,817,825 km (0.06 R)
• M7: 3,651,235 km (0.063 R)
• M8: 4,592,954 km (0.048 R)
• M9: 5,235,028 km (0.097 R)
• M10: 5,745,755 km (0.107 R)
• M11: 6,189,911 km (0.099 R)
• M12: 6,594,573 km (0.111 R)
• M13: 7,367,994 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.8

Radius: 9.9

Gravity: 8.55 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.23 AU - 1.71 AU

Year: 1133 Days

Day: 5.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,731,495 km

• M1: 123,119 km (0.072 R)
• M2: 431,291 km (0.102 R)
• M3: 924,066 km (0.07 R)
• M4: 1,478,476 km (0.081 R)
• M5: 1,983,518 km (0.059 R)
• M6: 3,023,672 km (0.113 R)
• M7: 3,728,577 km (0.102 R)
• M8: 4,539,099 km (0.049 R)
• M9: 4,996,270 km (0.083 R)
• M10: 5,421,277 km (0.102 R)
• M11: 5,914,352 km (0.098 R)
• M12: 6,228,956 km (0.1 R)
• M13: 6,578,417 km (0.056 R)
• M14: 7,679,906 km (0.068 R)
• M15: 9,046,632 km (0.118 R)
• M16: 9,959,628 km (0.053 R)
• M17: 10,341,551 km (0.057 R)
• M18: 10,700,287 km (0.086 R)
• M19: 11,067,250 km (0.112 R)
• M20: 11,616,125 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.4

Radius: 14.2

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.41 AU - 1.83 AU

Year: 1311 Days

Day: 6.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,731,495 km

• M1: 176,675 km (0.081 R)
• M2: 734,675 km (0.1 R)
• M3: 1,340,397 km (0.095 R)
• M4: 1,810,583 km (0.095 R)
• M5: 2,392,818 km (0.116 R)
• M6: 3,409,934 km (0.115 R)
• M7: 3,907,796 km (0.092 R)
• M8: 4,491,227 km (0.045 R)
• M9: 6,795,184 km (0.071 R)
• M10: 7,563,070 km (0.094 R)
• M11: 8,388,102 km (0.074 R)
• M12: 9,272,525 km (0.087 R)
• M13: 10,781,967 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.6

Radius: 10.1

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 2.94 AU - 3.02 AU

Year: 3271 Days

Day: 6.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 50,731,495 km

• M1: 125,662 km (0.073 R)
• M2: 493,972 km (0.093 R)
• M3: 1,045,988 km (0.113 R)
• M4: 1,634,656 km (0.064 R)
• M5: 2,836,824 km (0.054 R)
• M6: 3,213,811 km (0.101 R)
• M7: 3,965,241 km (0.089 R)
• M8: 4,415,980 km (0.099 R)
• M9: 4,997,167 km (0.069 R)
• M10: 5,550,081 km (0.098 R)
• M11: 6,032,385 km (0.03 R)
• M12: 6,898,407 km (0.093 R)
• M13: 7,235,899 km (0.094 R)
• M14: 7,746,627 km (0.117 R)
• M15: 8,315,398 km (0.11 R)
• M16: 8,911,994 km (0.086 R)
• M17: 9,725,956 km (0.036 R)
• M18: 11,716,206 km (0.1 R)
• M19: 13,389,009 km (0.098 R)
• M20: 14,406,425 km (0.116 R)
• M21: 15,010,351 km (0.096 R)
• M22: 16,539,989 km (0.11 R)
• M23: 19,235,593 km (0.12 R)
• M24: 19,783,271 km (0.112 R)
• M25: 20,216,507 km (0.039 R)
• M26: 20,655,876 km (0.064 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 876.4

Radius: 6.3

Gravity: 22.08 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 5.55 AU - 6.69 AU

Year: 9626 Days

Day: 24.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 152.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 50,731,495 km

• M1: 78,389 km (0.085 R)
• M2: 278,102 km (0.093 R)
• M3: 805,136 km (0.098 R)
• M4: 1,031,627 km (0.099 R)
• M5: 1,432,400 km (0.11 R)
• M6: 1,999,824 km (0.116 R)
• M7: 2,287,501 km (0.116 R)
• M8: 2,521,323 km (0.11 R)
• M9: 2,879,759 km (0.081 R)
• M10: 4,105,564 km (0.118 R)
• M11: 6,640,649 km (0.115 R)
• M12: 12,326,565 km (0.067 R)
• M13: 13,481,611 km (0.097 R)
• M14: 15,865,153 km (0.086 R)
• M15: 16,359,275 km (0.076 R)
• M16: 17,378,037 km (0.105 R)
• M17: 23,839,617 km (0.112 R)
• M18: 24,768,919 km (0.107 R)
• M19: 31,516,232 km (0.114 R)
• M20: 31,737,936 km (0.11 R)
• M21: 34,362,182 km (0.114 R)
• M22: 35,069,930 km (0.078 R)
• M23: 35,787,251 km (0.053 R)
• M24: 36,149,577 km (0.083 R)
• M25: 40,690,322 km (0.071 R)
• M26: 46,451,186 km (0.065 R)
• M27: 47,026,689 km (0.102 R)
• M28: 48,045,151 km (0.06 R)
• M29: 50,731,480 km (0.119 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 229 - 17,327 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit