🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.1

Radius: 9.4

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.55 AU - 0.55 AU

Year: 282 Days

Day: 7.7 Hours

Environment

Temp: -141 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 62,027,599 km

• M1: 116,986 km (0.109 R)
• M2: 423,212 km (0.118 R)
• M3: 823,686 km (0.079 R)
• M4: 1,222,215 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.6

Radius: 11

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.51 AU - 0.73 AU

Year: 337 Days

Day: 11 Hours

Environment

Temp: -155 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,027,599 km

• M1: 137,181 km (0.063 R)
• M2: 523,892 km (0.08 R)
• M3: 952,340 km (0.112 R)
• M4: 1,331,571 km (0.119 R)
• M5: 1,779,467 km (0.064 R)
• M6: 2,562,612 km (0.088 R)
• M7: 2,965,628 km (0.097 R)
• M8: 3,368,794 km (0.09 R)
• M9: 3,774,205 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.4

Radius: 9.7

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.84 AU - 1.08 AU

Year: 649 Days

Day: 11.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 62,027,599 km

• M1: 120,725 km (0.025 R)
• M2: 460,911 km (0.102 R)
• M3: 1,359,994 km (0.081 R)
• M4: 2,352,576 km (0.117 R)
• M5: 3,068,252 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.6

Radius: 10.4

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.04 AU - 1.32 AU

Year: 885 Days

Day: 5.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,027,599 km

• M1: 129,402 km (0.044 R)
• M2: 460,163 km (0.038 R)
• M3: 788,231 km (0.108 R)
• M4: 1,242,560 km (0.092 R)
• M5: 1,730,249 km (0.07 R)
• M6: 2,363,646 km (0.107 R)
• M7: 2,920,001 km (0.075 R)
• M8: 3,302,373 km (0.092 R)
• M9: 4,706,199 km (0.099 R)
• M10: 5,456,732 km (0.112 R)
• M11: 5,782,406 km (0.045 R)
• M12: 6,993,102 km (0.118 R)
• M13: 8,165,949 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.3

Radius: 8.1

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.62 AU - 2.16 AU

Year: 1794 Days

Day: 11.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 142.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,027,599 km

• M1: 100,979 km (0.107 R)
• M2: 454,179 km (0.039 R)
• M3: 818,600 km (0.118 R)
• M4: 1,086,978 km (0.078 R)
• M5: 1,390,213 km (0.067 R)
• M6: 2,159,744 km (0.11 R)
• M7: 2,580,713 km (0.114 R)
• M8: 3,128,091 km (0.107 R)
• M9: 3,413,973 km (0.066 R)
• M10: 3,733,963 km (0.11 R)
• M11: 4,144,160 km (0.092 R)
• M12: 4,622,275 km (0.038 R)
• M13: 4,894,693 km (0.09 R)
• M14: 5,429,206 km (0.111 R)
• M15: 6,469,510 km (0.096 R)
• M16: 7,424,692 km (0.105 R)
• M17: 7,991,219 km (0.042 R)
• M18: 9,332,962 km (0.088 R)
• M19: 10,317,915 km (0.116 R)
• M20: 11,300,474 km (0.064 R)
• M21: 12,123,262 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.1

Radius: 12.1

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.55 AU - 2.63 AU

Year: 2877 Days

Day: 7.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,027,599 km

• M1: 150,495 km (0.029 R)
• M2: 984,354 km (0.094 R)
• M3: 1,547,889 km (0.109 R)
• M4: 1,931,458 km (0.115 R)
• M5: 2,355,867 km (0.041 R)
• M6: 2,937,354 km (0.112 R)
• M7: 3,442,546 km (0.116 R)
• M8: 4,444,254 km (0.113 R)
• M9: 7,580,573 km (0.114 R)
• M10: 8,853,352 km (0.06 R)
• M11: 10,199,433 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.8

Radius: 8.2

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 4.3 AU - 5.88 AU

Year: 7927 Days

Day: 13.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,027,599 km

• M1: 102,175 km (0.06 R)
• M2: 407,505 km (0.071 R)
• M3: 787,034 km (0.046 R)
• M4: 1,091,616 km (0.059 R)
• M5: 1,849,778 km (0.041 R)
• M6: 2,501,276 km (0.035 R)
• M7: 2,776,088 km (0.11 R)
• M8: 3,088,149 km (0.086 R)
• M9: 3,744,136 km (0.092 R)
• M10: 5,159,631 km (0.098 R)
• M11: 5,556,813 km (0.086 R)
• M12: 6,054,824 km (0.036 R)
• M13: 9,432,894 km (0.095 R)
• M14: 17,861,387 km (0.079 R)
• M15: 19,651,475 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 952.5

Radius: 5.8

Gravity: 28.31 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 6.75 AU - 7.03 AU

Year: 12484 Days

Day: 23.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,027,599 km

• M1: 78,988 km (0.117 R)
• M2: 510,578 km (0.083 R)
• M3: 1,040,154 km (0.098 R)
• M4: 1,446,761 km (0.1 R)
• M5: 1,882,390 km (0.083 R)
• M6: 2,594,177 km (0.107 R)
• M7: 6,463,526 km (0.116 R)
• M8: 7,956,812 km (0.076 R)
• M9: 8,833,904 km (0.082 R)
• M10: 10,436,247 km (0.117 R)
• M11: 16,161,656 km (0.104 R)
• M12: 18,789,642 km (0.109 R)
• M13: 21,597,295 km (0.039 R)
• M14: 23,390,076 km (0.05 R)
• M15: 24,074,935 km (0.091 R)
• M16: 26,314,265 km (0.038 R)
• M17: 27,592,430 km (0.091 R)
• M18: 33,734,918 km (0.073 R)
• M19: 42,726,349 km (0.032 R)
• M20: 47,533,826 km (0.112 R)
• M21: 49,425,790 km (0.082 R)
• M22: 50,714,576 km (0.118 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 245 - 12,260 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit