🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.9

Radius: 8.8

Gravity: 8.57 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.6 AU - 0.66 AU

Year: 339 Days

Day: 7.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,743,570 km

• M1: 109,506 km (0.117 R)
• M2: 464,501 km (0.104 R)
• M3: 742,903 km (0.05 R)
• M4: 1,077,553 km (0.062 R)
• M5: 1,526,048 km (0.068 R)
• M6: 2,031,539 km (0.119 R)
• M7: 2,380,850 km (0.098 R)
• M8: 2,838,769 km (0.085 R)
• M9: 3,168,932 km (0.048 R)
• M10: 3,524,526 km (0.061 R)
• M11: 4,057,244 km (0.097 R)
• M12: 4,726,545 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.5

Radius: 9.9

Gravity: 8.71 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.58 AU - 0.72 AU

Year: 355 Days

Day: 13.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 61,743,570 km

• M1: 123,119 km (0.111 R)
• M2: 441,613 km (0.07 R)
• M3: 800,648 km (0.117 R)
• M4: 1,306,737 km (0.12 R)
• M5: 1,883,437 km (0.044 R)
• M6: 2,432,761 km (0.1 R)
• M7: 2,988,816 km (0.093 R)
• M8: 3,877,128 km (0.074 R)
• M9: 4,205,047 km (0.107 R)
• M10: 5,526,893 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.3

Radius: 12.9

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.65 AU - 0.93 AU

Year: 476 Days

Day: 14.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,743,570 km

• M1: 160,369 km (0.063 R)
• M2: 609,013 km (0.076 R)
• M3: 1,021,155 km (0.038 R)
• M4: 1,789,789 km (0.037 R)
• M5: 2,290,343 km (0.046 R)
• M6: 2,951,117 km (0.094 R)
• M7: 3,736,207 km (0.031 R)
• M8: 4,702,908 km (0.112 R)
• M9: 5,338,550 km (0.097 R)
• M10: 6,012,338 km (0.077 R)
• M11: 6,466,667 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.3

Radius: 13.2

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.71 AU - 0.89 AU

Year: 485 Days

Day: 7.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,743,570 km

• M1: 164,258 km (0.1 R)
• M2: 588,817 km (0.087 R)
• M3: 1,343,688 km (0.087 R)
• M4: 1,760,318 km (0.12 R)
• M5: 2,355,568 km (0.1 R)
• M6: 3,289,657 km (0.116 R)
• M7: 4,004,137 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.6

Radius: 9.5

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.96 AU - 1.22 AU

Year: 772 Days

Day: 6.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,743,570 km

• M1: 118,182 km (0.088 R)
• M2: 493,224 km (0.109 R)
• M3: 1,149,660 km (0.112 R)
• M4: 1,464,114 km (0.114 R)
• M5: 1,845,589 km (0.107 R)
• M6: 2,162,288 km (0.105 R)
• M7: 2,461,184 km (0.1 R)
• M8: 3,273,501 km (0.073 R)
• M9: 3,613,686 km (0.111 R)
• M10: 4,083,723 km (0.067 R)
• M11: 4,495,416 km (0.057 R)
• M12: 5,762,061 km (0.05 R)
• M13: 6,158,496 km (0.09 R)
• M14: 7,620,964 km (0.055 R)
• M15: 8,546,526 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.2

Radius: 12

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.15 AU - 2.93 AU

Year: 2746 Days

Day: 8.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 56.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,743,570 km

• M1: 149,299 km (0.081 R)
• M2: 718,070 km (0.098 R)
• M3: 1,255,874 km (0.078 R)
• M4: 1,949,111 km (0.04 R)
• M5: 3,515,849 km (0.087 R)
• M6: 4,786,982 km (0.11 R)
• M7: 6,054,226 km (0.059 R)
• M8: 9,138,635 km (0.062 R)
• M9: 12,456,865 km (0.093 R)
• M10: 13,586,927 km (0.059 R)
• M11: 16,761,544 km (0.057 R)
• M12: 18,301,355 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 59.6

Radius: 7.4

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 5.95 AU - 7.93 AU

Year: 12400 Days

Day: 23 Hours

Environment

Temp: -222 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,743,570 km

• M1: 95,144 km (0.095 R)
• M2: 669,450 km (0.053 R)
• M3: 1,112,410 km (0.105 R)
• M4: 1,369,718 km (0.071 R)
• M5: 2,229,756 km (0.056 R)
• M6: 2,930,323 km (0.087 R)
• M7: 3,506,424 km (0.047 R)
• M8: 4,808,225 km (0.097 R)
• M9: 6,375,113 km (0.062 R)
• M10: 8,833,455 km (0.109 R)
• M11: 10,029,191 km (0.051 R)
• M12: 11,593,237 km (0.108 R)
• M13: 14,158,242 km (0.118 R)
• M14: 14,827,842 km (0.075 R)
• M15: 16,064,268 km (0.099 R)
• M16: 16,849,657 km (0.039 R)
• M17: 20,507,475 km (0.066 R)
• M18: 22,938,590 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 312.6

Radius: 7.6

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 9.88 AU - 10.24 AU

Year: 21642 Days

Day: 17 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,743,570 km

• M1: 126,111 km (0.026 R)
• M2: 460,013 km (0.048 R)
• M3: 1,190,649 km (0.099 R)
• M4: 2,538,975 km (0.12 R)
• M5: 3,117,021 km (0.115 R)
• M6: 4,437,372 km (0.037 R)
• M7: 5,939,933 km (0.069 R)
• M8: 7,259,087 km (0.089 R)
• M9: 7,940,206 km (0.096 R)
• M10: 8,613,696 km (0.065 R)
• M11: 13,146,212 km (0.117 R)
• M12: 14,929,867 km (0.097 R)
• M13: 17,024,836 km (0.057 R)
• M14: 18,886,432 km (0.059 R)
• M15: 20,434,920 km (0.105 R)
• M16: 33,345,066 km (0.081 R)
• M17: 40,690,621 km (0.048 R)
• M18: 48,413,611 km (0.097 R)
• M19: 59,912,601 km (0.083 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 326 - 16,515 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit