🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.8

Radius: 14.5

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.65 AU - 0.71 AU

Year: 387 Days

Day: 12.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,665,032 km

• M1: 180,265 km (0.071 R)
• M2: 739,761 km (0.051 R)
• M3: 1,205,011 km (0.119 R)
• M4: 1,868,627 km (0.087 R)
• M5: 2,424,084 km (0.115 R)
• M6: 2,990,162 km (0.038 R)
• M7: 3,488,622 km (0.117 R)
• M8: 4,091,651 km (0.116 R)
• M9: 4,575,750 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.2

Radius: 9.8

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.62 AU - 0.74 AU

Year: 387 Days

Day: 5.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,665,032 km

• M1: 121,922 km (0.098 R)
• M2: 449,093 km (0.059 R)
• M3: 956,978 km (0.094 R)
• M4: 1,410,409 km (0.105 R)
• M5: 1,909,916 km (0.114 R)
• M6: 2,366,788 km (0.115 R)
• M7: 2,985,226 km (0.039 R)
• M8: 3,441,499 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.3

Radius: 12.1

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.22 AU - 1.92 AU

Year: 1358 Days

Day: 12.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,665,032 km

• M1: 150,495 km (0.119 R)
• M2: 555,457 km (0.103 R)
• M3: 1,097,300 km (0.083 R)
• M4: 1,662,930 km (0.087 R)
• M5: 2,066,545 km (0.083 R)
• M6: 2,488,411 km (0.099 R)
• M7: 3,230,865 km (0.053 R)
• M8: 3,740,844 km (0.068 R)
• M9: 4,735,371 km (0.119 R)
• M10: 5,315,063 km (0.088 R)
• M11: 6,050,785 km (0.101 R)
• M12: 6,853,378 km (0.059 R)
• M13: 7,243,230 km (0.097 R)
• M14: 9,040,199 km (0.043 R)
• M15: 9,630,064 km (0.062 R)
• M16: 10,120,296 km (0.093 R)
• M17: 10,788,849 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.3

Radius: 10.8

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.83 AU - 2.09 AU

Year: 1894 Days

Day: 6 Hours

Environment

Temp: -200 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 65,665,032 km

• M1: 135,685 km (0.102 R)
• M2: 612,603 km (0.099 R)
• M3: 957,426 km (0.112 R)
• M4: 1,374,954 km (0.11 R)
• M5: 3,739,797 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.7

Radius: 10.6

Gravity: 7.7 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.68 AU - 3.4 AU

Year: 3659 Days

Day: 14.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,665,032 km

• M1: 139,724 km (0.093 R)
• M2: 781,649 km (0.054 R)
• M3: 1,123,181 km (0.077 R)
• M4: 1,831,976 km (0.097 R)
• M5: 2,257,581 km (0.105 R)
• M6: 2,599,263 km (0.09 R)
• M7: 3,310,601 km (0.047 R)
• M8: 4,471,032 km (0.116 R)
• M9: 5,770,439 km (0.045 R)
• M10: 6,851,433 km (0.115 R)
• M11: 7,273,299 km (0.113 R)
• M12: 7,781,632 km (0.081 R)
• M13: 9,649,063 km (0.051 R)
• M14: 11,434,663 km (0.099 R)
• M15: 12,453,125 km (0.115 R)
• M16: 13,581,542 km (0.085 R)
• M17: 15,263,172 km (0.052 R)
• M18: 16,439,460 km (0.033 R)
• M19: 17,138,381 km (0.085 R)
• M20: 23,314,828 km (0.113 R)
• M21: 25,484,596 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.1

Radius: 11.9

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 5.1 AU - 5.12 AU

Year: 7973 Days

Day: 13.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,665,032 km

• M1: 148,551 km (0.038 R)
• M2: 731,833 km (0.05 R)
• M3: 1,288,337 km (0.087 R)
• M4: 1,989,203 km (0.092 R)
• M5: 2,493,049 km (0.066 R)
• M6: 3,197,954 km (0.098 R)
• M7: 3,630,142 km (0.093 R)
• M8: 4,291,365 km (0.086 R)
• M9: 5,390,011 km (0.1 R)
• M10: 10,508,054 km (0.099 R)
• M11: 12,893,990 km (0.117 R)
• M12: 14,934,056 km (0.049 R)
• M13: 20,330,351 km (0.109 R)
• M14: 20,819,835 km (0.08 R)
• M15: 28,004,721 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 405

Radius: 4.8

Gravity: 17.58 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 7.92 AU - 11.48 AU

Year: 20853 Days

Day: 19.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 65,665,032 km

• M1: 59,690 km (0.071 R)
• M2: 405,261 km (0.111 R)
• M3: 1,072,467 km (0.098 R)
• M4: 1,424,022 km (0.057 R)
• M5: 1,921,136 km (0.076 R)
• M6: 2,311,736 km (0.098 R)
• M7: 2,482,277 km (0.061 R)
• M8: 3,069,898 km (0.1 R)
• M9: 4,133,688 km (0.104 R)
• M10: 4,417,924 km (0.114 R)
• M11: 4,955,130 km (0.095 R)
• M12: 5,239,516 km (0.085 R)
• M13: 5,958,633 km (0.078 R)
• M14: 7,406,142 km (0.103 R)
• M15: 8,359,230 km (0.109 R)
• M16: 8,609,657 km (0.043 R)
• M17: 9,882,136 km (0.095 R)
• M18: 10,105,935 km (0.119 R)
• M19: 13,329,170 km (0.119 R)
• M20: 14,301,407 km (0.032 R)
• M21: 16,464,143 km (0.109 R)
• M22: 19,006,858 km (0.106 R)
• M23: 19,352,878 km (0.086 R)
• M24: 20,416,220 km (0.106 R)
• M25: 21,611,656 km (0.067 R)
• M26: 22,852,870 km (0.074 R)
• M27: 24,546,767 km (0.089 R)
• M28: 25,476,517 km (0.081 R)
• M29: 31,192,802 km (0.092 R)
• M30: 31,553,482 km (0.111 R)
• M31: 42,667,856 km (0.092 R)
• M32: 43,410,161 km (0.096 R)
• M33: 47,567,785 km (0.119 R)
• M34: 48,045,600 km (0.111 R)
• M35: 55,953,493 km (0.068 R)
• M36: 56,308,040 km (0.112 R)
• M37: 60,866,586 km (0.043 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 396 - 18,202 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit