🌌 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: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612.6

Radius: 8.4

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.44 AU - 0.68 AU

Year: 295 Days

Day: 12.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 19,258,178 km

• M1: 104,719 km (0.11 R)
• M2: 411,843 km (0.082 R)
• M3: 796,758 km (0.06 R)
• M4: 1,095,056 km (0.109 R)
• M5: 1,397,843 km (0.118 R)
• M6: 2,137,305 km (0.083 R)
• M7: 3,045,065 km (0.113 R)
• M8: 3,313,144 km (0.115 R)
• M9: 3,699,107 km (0.074 R)
• M10: 4,366,163 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.5

Radius: 10.1

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.88 AU - 0.92 AU

Year: 600 Days

Day: 11.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 19,258,178 km

• M1: 125,662 km (0.088 R)
• M2: 472,580 km (0.106 R)
• M3: 847,322 km (0.097 R)
• M4: 1,165,517 km (0.06 R)
• M5: 1,747,902 km (0.086 R)
• M6: 2,066,395 km (0.058 R)
• M7: 2,484,372 km (0.064 R)
• M8: 3,254,202 km (0.095 R)
• M9: 3,595,884 km (0.092 R)
• M10: 4,219,109 km (0.064 R)
• M11: 5,043,991 km (0.119 R)
• M12: 5,807,389 km (0.051 R)
• M13: 6,409,521 km (0.089 R)
• M14: 6,806,703 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.4

Radius: 10.4

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.83 AU - 0.97 AU

Year: 600 Days

Day: 8.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 19,258,178 km

• M1: 129,402 km (0.11 R)
• M2: 486,492 km (0.054 R)
• M3: 983,008 km (0.074 R)
• M4: 1,318,556 km (0.079 R)
• M5: 1,676,843 km (0.103 R)
• M6: 2,378,606 km (0.083 R)
• M7: 2,769,805 km (0.109 R)
• M8: 3,179,254 km (0.037 R)
• M9: 3,522,431 km (0.115 R)
• M10: 4,561,688 km (0.097 R)
• M11: 5,169,803 km (0.064 R)
• M12: 6,211,603 km (0.097 R)
• M13: 6,568,095 km (0.07 R)
• M14: 7,171,273 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.6

Radius: 12.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.41 AU - 2.21 AU

Year: 1712 Days

Day: 8.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 19,258,178 km

• M1: 154,834 km (0.055 R)
• M2: 585,676 km (0.074 R)
• M3: 1,036,713 km (0.106 R)
• M4: 1,601,296 km (0.097 R)
• M5: 2,179,791 km (0.118 R)
• M6: 2,609,735 km (0.058 R)
• M7: 3,174,766 km (0.085 R)
• M8: 3,895,529 km (0.118 R)
• M9: 4,619,582 km (0.046 R)
• M10: 5,450,598 km (0.106 R)
• M11: 5,882,039 km (0.117 R)
• M12: 6,378,704 km (0.119 R)
• M13: 6,948,372 km (0.064 R)
• M14: 7,817,386 km (0.087 R)
• M15: 8,291,013 km (0.096 R)
• M16: 8,731,130 km (0.112 R)
• M17: 9,159,429 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.9

Radius: 9.7

Gravity: 8.84 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.84 AU - 2.06 AU

Year: 1914 Days

Day: 12.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 19,258,178 km

• M1: 121,922 km (0.104 R)
• M2: 460,013 km (0.1 R)
• M3: 920,625 km (0.077 R)
• M4: 1,232,686 km (0.086 R)
• M5: 1,772,884 km (0.12 R)
• M6: 2,305,453 km (0.077 R)
• M7: 3,130,186 km (0.108 R)
• M8: 3,619,520 km (0.094 R)
• M9: 3,986,334 km (0.076 R)
• M10: 5,929,910 km (0.101 R)
• M11: 6,259,175 km (0.112 R)
• M12: 7,611,689 km (0.11 R)
• M13: 9,453,239 km (0.101 R)
• M14: 9,868,373 km (0.083 R)
• M15: 10,187,765 km (0.11 R)
• M16: 11,691,822 km (0.1 R)
• M17: 12,292,307 km (0.057 R)
• M18: 12,955,325 km (0.091 R)
• M19: 13,338,595 km (0.106 R)
• M20: 15,944,739 km (0.116 R)
• M21: 16,335,938 km (0.026 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.5

Radius: 11.5

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.79 AU - 2.23 AU

Year: 2003 Days

Day: 11.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 19,258,178 km

• M1: 143,165 km (0.1 R)
• M2: 720,613 km (0.069 R)
• M3: 1,233,285 km (0.058 R)
• M4: 3,124,202 km (0.104 R)
• M5: 4,024,931 km (0.068 R)
• M6: 4,536,406 km (0.102 R)
• M7: 5,260,310 km (0.06 R)
• M8: 6,122,742 km (0.113 R)
• M9: 7,076,877 km (0.111 R)
• M10: 7,626,499 km (0.113 R)
• M11: 8,282,037 km (0.062 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.5

Radius: 10.8

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 3.18 AU - 3.22 AU

Year: 4024 Days

Day: 14.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 19,258,178 km

• M1: 134,339 km (0.056 R)
• M2: 576,999 km (0.113 R)
• M3: 1,354,908 km (0.081 R)
• M4: 1,990,549 km (0.101 R)
• M5: 2,327,743 km (0.042 R)
• M6: 3,695,516 km (0.116 R)
• M7: 4,146,255 km (0.09 R)
• M8: 4,610,307 km (0.119 R)
• M9: 5,965,365 km (0.096 R)
• M10: 7,190,272 km (0.089 R)
• M11: 7,994,959 km (0.117 R)
• M12: 8,858,737 km (0.098 R)
• M13: 9,518,314 km (0.101 R)
• M14: 10,249,698 km (0.077 R)
• M15: 10,771,346 km (0.037 R)
• M16: 11,868,048 km (0.095 R)
• M17: 12,398,672 km (0.036 R)
• M18: 13,318,100 km (0.088 R)
• M19: 13,842,889 km (0.054 R)
• M20: 14,480,775 km (0.102 R)
• M21: 17,625,023 km (0.083 R)
• M22: 19,752,454 km (0.082 R)
• M23: 20,185,241 km (0.03 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.7

Radius: 9.7

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.68 AU - 4.44 AU

Year: 4722 Days

Day: 12.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 19,258,178 km

• M1: 120,725 km (0.071 R)
• M2: 602,879 km (0.091 R)
• M3: 1,605,634 km (0.065 R)
• M4: 2,150,469 km (0.08 R)
• M5: 2,539,573 km (0.105 R)
• M6: 3,388,691 km (0.066 R)
• M7: 7,655,671 km (0.088 R)
• M8: 9,409,108 km (0.066 R)
• M9: 10,379,549 km (0.051 R)
• M10: 13,784,546 km (0.044 R)
• M11: 15,183,735 km (0.064 R)
• M12: 19,121,301 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 23.4

Radius: 5.4

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 7.22 AU - 7.32 AU

Year: 13779 Days

Day: 16.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 19,258,178 km

• M1: 72,256 km (0.113 R)
• M2: 497,563 km (0.049 R)
• M3: 756,816 km (0.081 R)
• M4: 1,047,185 km (0.105 R)
• M5: 5,559,506 km (0.038 R)
• M6: 8,002,588 km (0.054 R)
• M7: 10,648,526 km (0.086 R)
• M8: 15,404,242 km (0.103 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 291 - 15,775 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit