🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.7

Radius: 10

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.56 AU - 0.6 AU

Year: 295 Days

Day: 14.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,798,464 km

• M1: 124,316 km (0.111 R)
• M2: 439,519 km (0.115 R)
• M3: 813,214 km (0.12 R)
• M4: 1,164,470 km (0.119 R)
• M5: 1,636,601 km (0.118 R)
• M6: 1,962,275 km (0.107 R)
• M7: 2,481,230 km (0.041 R)
• M8: 3,127,194 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.9

Radius: 11.1

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.6 AU - 1 AU

Year: 477 Days

Day: 7.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,798,464 km

• M1: 138,228 km (0.116 R)
• M2: 513,420 km (0.107 R)
• M3: 1,086,829 km (0.065 R)
• M4: 1,552,377 km (0.038 R)
• M5: 1,929,513 km (0.117 R)
• M6: 2,293,784 km (0.083 R)
• M7: 2,735,397 km (0.025 R)
• M8: 3,304,617 km (0.09 R)
• M9: 3,765,827 km (0.08 R)
• M10: 5,006,143 km (0.101 R)
• M11: 5,842,844 km (0.094 R)
• M12: 6,239,428 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.6

Radius: 13.4

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.7 AU - 1.1 AU

Year: 569 Days

Day: 6.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,798,464 km

• M1: 167,101 km (0.036 R)
• M2: 698,622 km (0.108 R)
• M3: 1,198,279 km (0.115 R)
• M4: 1,731,745 km (0.059 R)
• M5: 2,250,850 km (0.12 R)
• M6: 2,699,494 km (0.064 R)
• M7: 3,596,183 km (0.095 R)
• M8: 5,405,719 km (0.07 R)
• M9: 6,628,981 km (0.041 R)
• M10: 7,096,175 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.8

Radius: 9

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.91 AU - 1.07 AU

Year: 657 Days

Day: 13.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 81,798,464 km

• M1: 112,049 km (0.119 R)
• M2: 506,389 km (0.102 R)
• M3: 1,142,030 km (0.103 R)
• M4: 1,815,370 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.3

Radius: 11.4

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.2 AU - 1.22 AU

Year: 888 Days

Day: 14.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,798,464 km

• M1: 143,764 km (0.104 R)
• M2: 518,805 km (0.12 R)
• M3: 885,171 km (0.113 R)
• M4: 1,309,580 km (0.12 R)
• M5: 1,781,411 km (0.111 R)
• M6: 2,167,075 km (0.103 R)
• M7: 2,791,047 km (0.096 R)
• M8: 3,378,668 km (0.107 R)
• M9: 4,191,284 km (0.097 R)
• M10: 4,628,708 km (0.086 R)
• M11: 6,833,481 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.3

Radius: 8.1

Gravity: 7 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.24 AU - 1.44 AU

Year: 1034 Days

Day: 12.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,798,464 km

• M1: 108,758 km (0.092 R)
• M2: 432,338 km (0.087 R)
• M3: 787,932 km (0.048 R)
• M4: 1,062,294 km (0.117 R)
• M5: 1,680,882 km (0.112 R)
• M6: 2,065,947 km (0.12 R)
• M7: 2,343,899 km (0.105 R)
• M8: 2,646,835 km (0.076 R)
• M9: 2,912,970 km (0.091 R)
• M10: 3,210,370 km (0.038 R)
• M11: 4,782,494 km (0.074 R)
• M12: 5,197,928 km (0.118 R)
• M13: 5,637,446 km (0.087 R)
• M14: 6,438,992 km (0.11 R)
• M15: 6,811,191 km (0.097 R)
• M16: 7,082,562 km (0.057 R)
• M17: 8,165,501 km (0.099 R)
• M18: 8,549,818 km (0.059 R)
• M19: 9,081,040 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.2

Radius: 12.7

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.57 AU - 2.09 AU

Year: 1651 Days

Day: 14.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,798,464 km

• M1: 158,275 km (0.067 R)
• M2: 695,032 km (0.111 R)
• M3: 1,374,505 km (0.105 R)
• M4: 1,822,102 km (0.108 R)
• M5: 2,221,678 km (0.057 R)
• M6: 2,735,547 km (0.056 R)
• M7: 3,312,396 km (0.076 R)
• M8: 4,151,640 km (0.06 R)
• M9: 5,235,626 km (0.073 R)
• M10: 6,178,242 km (0.081 R)
• M11: 7,312,344 km (0.064 R)
• M12: 7,843,117 km (0.075 R)
• M13: 9,139,981 km (0.113 R)
• M14: 9,789,834 km (0.114 R)
• M15: 13,803,695 km (0.114 R)
• M16: 14,572,777 km (0.076 R)

Asteroid Belt

Center: 6.17 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 661.3

Radius: 6.6

Gravity: 15.18 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 9.38 AU - 11.62 AU

Year: 22689 Days

Day: 22.5 Hours

Environment

Temp: -244 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 81,798,464 km

• M1: 82,129 km (0.106 R)
• M2: 542,891 km (0.113 R)
• M3: 928,704 km (0.085 R)
• M4: 1,156,242 km (0.11 R)
• M5: 1,602,792 km (0.084 R)
• M6: 2,054,577 km (0.115 R)
• M7: 4,530,721 km (0.114 R)
• M8: 6,136,355 km (0.074 R)
• M9: 7,234,553 km (0.099 R)
• M10: 7,528,513 km (0.109 R)
• M11: 8,950,889 km (0.099 R)
• M12: 10,668,722 km (0.111 R)
• M13: 12,110,546 km (0.101 R)
• M14: 12,316,692 km (0.116 R)
• M15: 16,610,151 km (0.111 R)
• M16: 17,732,883 km (0.106 R)
• M17: 22,111,612 km (0.102 R)
• M18: 23,897,063 km (0.08 R)
• M19: 25,102,224 km (0.11 R)
• M20: 26,232,435 km (0.044 R)
• M21: 27,871,280 km (0.06 R)
• M22: 28,231,063 km (0.067 R)
• M23: 34,832,667 km (0.044 R)
• M24: 39,762,516 km (0.11 R)
• M25: 40,371,379 km (0.111 R)
• M26: 41,296,492 km (0.052 R)
• M27: 43,348,825 km (0.098 R)
• M28: 45,800,435 km (0.065 R)
• M29: 46,134,188 km (0.094 R)
• M30: 48,343,001 km (0.12 R)
• M31: 58,666,002 km (0.04 R)
• M32: 59,059,594 km (0.048 R)
• M33: 60,451,153 km (0.116 R)
• M34: 68,171,301 km (0.055 R)
• M35: 77,938,546 km (0.087 R)
• M36: 78,652,726 km (0.118 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 241 - 16,881 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit