🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.2

Radius: 9.2

Gravity: 11.68 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.67 AU - 0.73 AU

Year: 378 Days

Day: 6 Hours

Environment

Temp: -136 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,617,793 km

• M1: 114,442 km (0.108 R)
• M2: 420,220 km (0.105 R)
• M3: 732,132 km (0.066 R)
• M4: 1,073,066 km (0.073 R)
• M5: 1,466,807 km (0.081 R)
• M6: 1,766,302 km (0.051 R)
• M7: 3,320,026 km (0.066 R)
• M8: 3,675,919 km (0.094 R)
• M9: 4,464,748 km (0.03 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.5

Radius: 9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.73 AU - 1.07 AU

Year: 551 Days

Day: 5.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,617,793 km

• M1: 111,899 km (0.073 R)
• M2: 392,844 km (0.116 R)
• M3: 874,699 km (0.033 R)
• M4: 1,159,832 km (0.09 R)
• M5: 1,610,421 km (0.1 R)
• M6: 1,986,510 km (0.078 R)
• M7: 2,467,766 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.1

Radius: 10.9

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.05 AU - 1.49 AU

Year: 924 Days

Day: 5.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 69,617,793 km

• M1: 170,093 km (0.062 R)
• M2: 891,603 km (0.054 R)
• M3: 1,468,602 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.7

Radius: 13.3

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.13 AU - 1.83 AU

Year: 1163 Days

Day: 7.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,617,793 km

• M1: 165,455 km (0.117 R)
• M2: 583,282 km (0.094 R)
• M3: 1,106,575 km (0.066 R)
• M4: 1,588,879 km (0.026 R)
• M5: 2,168,870 km (0.079 R)
• M6: 3,151,878 km (0.088 R)
• M7: 3,926,196 km (0.118 R)
• M8: 4,652,793 km (0.09 R)
• M9: 5,219,619 km (0.086 R)
• M10: 5,920,485 km (0.118 R)
• M11: 6,421,937 km (0.092 R)
• M12: 7,303,966 km (0.098 R)
• M13: 7,962,945 km (0.083 R)
• M14: 8,718,863 km (0.076 R)
• M15: 10,537,375 km (0.085 R)
• M16: 11,870,890 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.2

Radius: 11.1

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.94 AU - 2.62 AU

Year: 2223 Days

Day: 9.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 69,617,793 km

• M1: 138,976 km (0.099 R)
• M2: 513,869 km (0.094 R)
• M3: 907,610 km (0.072 R)
• M4: 1,509,742 km (0.072 R)
• M5: 2,013,139 km (0.083 R)
• M6: 2,418,100 km (0.1 R)
• M7: 3,001,532 km (0.111 R)
• M8: 3,361,015 km (0.117 R)
• M9: 4,247,532 km (0.067 R)
• M10: 4,724,450 km (0.098 R)
• M11: 7,256,394 km (0.11 R)
• M12: 7,909,389 km (0.11 R)
• M13: 8,408,747 km (0.119 R)
• M14: 8,962,109 km (0.094 R)
• M15: 9,643,976 km (0.074 R)
• M16: 10,769,102 km (0.08 R)
• M17: 11,939,256 km (0.113 R)
• M18: 13,105,970 km (0.053 R)
• M19: 15,233,252 km (0.115 R)
• M20: 16,756,308 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 346

Radius: 5.4

Gravity: 11.87 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 5.33 AU - 7.77 AU

Year: 10824 Days

Day: 24.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 69,617,793 km

• M1: 67,169 km (0.11 R)
• M2: 588,518 km (0.065 R)
• M3: 939,624 km (0.04 R)
• M4: 1,252,433 km (0.085 R)
• M5: 1,459,028 km (0.117 R)
• M6: 2,151,965 km (0.043 R)
• M7: 2,600,011 km (0.109 R)
• M8: 2,836,076 km (0.079 R)
• M9: 3,328,702 km (0.045 R)
• M10: 3,926,795 km (0.119 R)
• M11: 4,345,669 km (0.117 R)
• M12: 4,736,119 km (0.069 R)
• M13: 5,781,509 km (0.117 R)
• M14: 5,980,773 km (0.077 R)
• M15: 6,606,541 km (0.113 R)
• M16: 7,865,258 km (0.117 R)
• M17: 10,160,687 km (0.113 R)
• M18: 11,669,831 km (0.058 R)
• M19: 13,612,209 km (0.058 R)
• M20: 15,187,625 km (0.087 R)
• M21: 15,567,753 km (0.109 R)
• M22: 16,479,402 km (0.059 R)
• M23: 16,813,305 km (0.117 R)
• M24: 19,427,079 km (0.08 R)
• M25: 22,299,507 km (0.101 R)
• M26: 24,135,073 km (0.106 R)
• M27: 28,389,188 km (0.088 R)
• M28: 28,580,524 km (0.117 R)
• M29: 33,329,358 km (0.108 R)
• M30: 39,523,159 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 406.7

Radius: 3.9

Gravity: 26.74 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 7.55 AU - 9.15 AU

Year: 15579 Days

Day: 17.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 69,617,793 km

• M1: 65,524 km (0.066 R)
• M2: 242,199 km (0.071 R)
• M3: 698,024 km (0.114 R)
• M4: 1,523,654 km (0.109 R)
• M5: 1,771,538 km (0.033 R)
• M6: 2,678,849 km (0.072 R)
• M7: 3,641,811 km (0.079 R)
• M8: 4,200,858 km (0.114 R)
• M9: 6,068,138 km (0.107 R)
• M10: 6,373,468 km (0.101 R)
• M11: 6,529,947 km (0.087 R)
• M12: 7,523,427 km (0.085 R)
• M13: 9,245,896 km (0.055 R)
• M14: 9,804,644 km (0.06 R)
• M15: 12,630,847 km (0.037 R)
• M16: 20,407,094 km (0.059 R)
• M17: 21,439,170 km (0.074 R)
• M18: 23,051,685 km (0.062 R)
• M19: 26,115,001 km (0.074 R)
• M20: 27,536,630 km (0.086 R)
• M21: 29,547,075 km (0.094 R)
• M22: 30,422,223 km (0.116 R)
• M23: 32,453,912 km (0.114 R)
• M24: 34,574,461 km (0.08 R)
• M25: 35,791,440 km (0.037 R)
• M26: 37,415,774 km (0.071 R)
• M27: 37,925,454 km (0.116 R)
• M28: 38,828,277 km (0.109 R)
• M29: 44,121,798 km (0.119 R)
• M30: 44,263,616 km (0.04 R)
• M31: 46,279,597 km (0.069 R)
• M32: 46,719,415 km (0.107 R)
• M33: 50,030,315 km (0.071 R)
• M34: 50,804,035 km (0.102 R)
• M35: 52,058,563 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 802.6

Radius: 7.5

Gravity: 14.27 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 8.11 AU - 9.01 AU

Year: 16171 Days

Day: 18.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 69,617,793 km

• M1: 93,349 km (0.1 R)
• M2: 417,079 km (0.111 R)
• M3: 1,054,366 km (0.103 R)
• M4: 1,570,927 km (0.043 R)
• M5: 3,074,087 km (0.08 R)
• M6: 3,730,373 km (0.109 R)
• M7: 4,677,626 km (0.111 R)
• M8: 5,430,403 km (0.117 R)
• M9: 10,919,747 km (0.109 R)
• M10: 17,810,973 km (0.053 R)
• M11: 19,900,107 km (0.118 R)
• M12: 20,816,993 km (0.113 R)
• M13: 23,231,951 km (0.06 R)
• M14: 28,152,225 km (0.118 R)
• M15: 31,464,023 km (0.029 R)
• M16: 31,709,961 km (0.108 R)
• M17: 38,567,229 km (0.092 R)
• M18: 39,846,440 km (0.091 R)
• M19: 46,191,783 km (0.08 R)
• M20: 47,149,958 km (0.092 R)
• M21: 58,952,033 km (0.057 R)
• M22: 59,890,311 km (0.096 R)
• M23: 69,409,373 km (0.03 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 160 - 19,479 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit