🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.3

Radius: 10.2

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.97 AU - 1.11 AU

Year: 732 Days

Day: 13.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,020,945 km

• M1: 126,859 km (0.045 R)
• M2: 548,127 km (0.113 R)
• M3: 1,270,086 km (0.048 R)
• M4: 1,592,769 km (0.04 R)
• M5: 2,349,883 km (0.096 R)
• M6: 2,777,434 km (0.106 R)
• M7: 3,419,658 km (0.036 R)
• M8: 4,261,146 km (0.064 R)
• M9: 5,425,466 km (0.102 R)
• M10: 5,875,905 km (0.081 R)
• M11: 6,196,194 km (0.108 R)
• M12: 6,934,161 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.8

Radius: 12.5

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.15 AU - 1.65 AU

Year: 1143 Days

Day: 6.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 28,020,945 km

• M1: 155,432 km (0.104 R)
• M2: 743,950 km (0.11 R)
• M3: 1,376,001 km (0.071 R)
• M4: 2,454,303 km (0.042 R)
• M5: 2,987,170 km (0.078 R)
• M6: 3,381,061 km (0.071 R)
• M7: 3,882,813 km (0.091 R)
• M8: 4,596,993 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.1

Radius: 10.7

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 4.77 AU - 4.91 AU

Year: 7350 Days

Day: 12 Hours

Environment

Temp: -216 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 28,020,945 km

• M1: 133,142 km (0.059 R)
• M2: 496,964 km (0.11 R)
• M3: 1,111,662 km (0.077 R)
• M4: 1,675,945 km (0.082 R)
• M5: 2,304,705 km (0.099 R)
• M6: 3,446,885 km (0.084 R)
• M7: 4,031,812 km (0.067 R)
• M8: 4,627,212 km (0.111 R)
• M9: 5,250,885 km (0.11 R)
• M10: 5,739,023 km (0.03 R)
• M11: 6,562,111 km (0.105 R)
• M12: 7,651,781 km (0.057 R)
• M13: 8,483,546 km (0.099 R)
• M14: 12,211,674 km (0.105 R)
• M15: 13,180,470 km (0.119 R)
• M16: 14,669,118 km (0.106 R)
• M17: 15,331,538 km (0.067 R)
• M18: 16,716,216 km (0.066 R)
• M19: 18,389,019 km (0.095 R)
• M20: 19,516,538 km (0.113 R)
• M21: 21,986,549 km (0.087 R)
• M22: 24,995,859 km (0.104 R)
• M23: 25,767,485 km (0.119 R)
• M24: 31,322,653 km (0.114 R)
• M25: 35,870,129 km (0.089 R)

Planet 4 - Ice Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 82.4

Radius: 7.7

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 5.88 AU - 5.96 AU

Year: 9942 Days

Day: 17.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,020,945 km

• M1: 95,743 km (0.047 R)
• M2: 594,652 km (0.063 R)
• M3: 994,227 km (0.102 R)
• M4: 2,014,784 km (0.117 R)
• M5: 2,532,991 km (0.114 R)
• M6: 4,108,855 km (0.072 R)
• M7: 5,115,798 km (0.073 R)
• M8: 6,307,495 km (0.114 R)
• M9: 18,079,052 km (0.116 R)
• M10: 20,670,835 km (0.11 R)
• M11: 21,125,763 km (0.113 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117.2

Radius: 5.1

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 4.54 AU - 7.44 AU

Year: 10119 Days

Day: 17.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 28,020,945 km

• M1: 66,421 km (0.087 R)
• M2: 255,812 km (0.054 R)
• M3: 948,451 km (0.089 R)
• M4: 1,311,824 km (0.103 R)
• M5: 1,497,175 km (0.092 R)
• M6: 3,979,752 km (0.09 R)
• M7: 4,230,179 km (0.028 R)
• M8: 6,596,069 km (0.111 R)
• M9: 6,882,400 km (0.06 R)
• M10: 11,442,442 km (0.114 R)
• M11: 20,427,440 km (0.055 R)
• M12: 22,716,437 km (0.115 R)
• M13: 25,247,782 km (0.073 R)
• M14: 25,479,659 km (0.058 R)
• M15: 26,184,265 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 121.1

Radius: 7.7

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 5.63 AU - 6.75 AU

Year: 10630 Days

Day: 22.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 28,020,945 km

• M1: 95,743 km (0.071 R)
• M2: 385,065 km (0.07 R)
• M3: 633,248 km (0.044 R)
• M4: 1,117,646 km (0.089 R)
• M5: 1,764,956 km (0.088 R)
• M6: 2,149,871 km (0.069 R)
• M7: 3,544,722 km (0.109 R)
• M8: 4,895,590 km (0.045 R)
• M9: 5,978,081 km (0.076 R)
• M10: 7,012,101 km (0.076 R)
• M11: 8,015,155 km (0.058 R)
• M12: 10,737,387 km (0.095 R)
• M13: 11,876,725 km (0.114 R)
• M14: 12,745,439 km (0.077 R)
• M15: 15,157,256 km (0.112 R)
• M16: 17,245,343 km (0.084 R)
• M17: 17,795,864 km (0.061 R)
• M18: 18,932,059 km (0.077 R)
• M19: 19,517,885 km (0.055 R)
• M20: 21,418,077 km (0.113 R)
• M21: 26,378,742 km (0.078 R)
• M22: 26,783,105 km (0.101 R)
• M23: 27,027,698 km (0.089 R)
• M24: 27,604,098 km (0.08 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 271 - 20,027 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit