🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.2

Radius: 13.3

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.74 AU - 0.96 AU

Year: 551 Days

Day: 14.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 89,315,950 km

• M1: 165,455 km (0.096 R)
• M2: 593,455 km (0.086 R)
• M3: 1,081,892 km (0.114 R)
• M4: 1,496,428 km (0.072 R)
• M5: 1,990,400 km (0.118 R)
• M6: 2,711,611 km (0.105 R)
• M7: 3,306,113 km (0.116 R)
• M8: 3,914,677 km (0.048 R)
• M9: 4,348,361 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.8

Radius: 13.7

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.81 AU - 1.13 AU

Year: 672 Days

Day: 13.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 89,315,950 km

• M1: 170,392 km (0.063 R)
• M2: 616,642 km (0.069 R)
• M3: 1,129,913 km (0.116 R)
• M4: 1,965,716 km (0.08 R)
• M5: 2,669,424 km (0.079 R)
• M6: 3,195,261 km (0.094 R)
• M7: 4,017,451 km (0.115 R)
• M8: 4,485,991 km (0.106 R)
• M9: 5,454,488 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.7

Radius: 8.7

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.89 AU - 1.11 AU

Year: 703 Days

Day: 7.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 89,315,950 km

• M1: 108,458 km (0.081 R)
• M2: 386,262 km (0.064 R)
• M3: 696,827 km (0.098 R)
• M4: 980,165 km (0.109 R)
• M5: 1,362,089 km (0.06 R)
• M6: 1,745,358 km (0.075 R)
• M7: 2,037,074 km (0.116 R)
• M8: 2,460,436 km (0.084 R)
• M9: 2,862,854 km (0.036 R)
• M10: 3,284,122 km (0.075 R)
• M11: 3,613,836 km (0.091 R)
• M12: 4,280,743 km (0.082 R)
• M13: 5,642,233 km (0.07 R)
• M14: 6,383,341 km (0.029 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.9

Radius: 14.7

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.24 AU - 1.76 AU

Year: 1291 Days

Day: 12.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 89,315,950 km

• M1: 184,155 km (0.071 R)
• M2: 666,907 km (0.103 R)
• M3: 1,506,301 km (0.079 R)
• M4: 2,412,266 km (0.047 R)
• M5: 3,260,635 km (0.034 R)
• M6: 4,265,185 km (0.089 R)
• M7: 5,425,466 km (0.11 R)
• M8: 6,102,845 km (0.099 R)
• M9: 7,950,080 km (0.061 R)
• M10: 8,451,083 km (0.04 R)
• M11: 8,914,088 km (0.073 R)
• M12: 9,393,998 km (0.032 R)
• M13: 10,308,191 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.3

Radius: 8.8

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.21 AU - 1.83 AU

Year: 1317 Days

Day: 11.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 89,315,950 km

• M1: 109,506 km (0.051 R)
• M2: 455,825 km (0.043 R)
• M3: 828,922 km (0.102 R)
• M4: 1,818,213 km (0.09 R)
• M5: 4,278,350 km (0.072 R)
• M6: 4,684,358 km (0.035 R)
• M7: 5,656,146 km (0.115 R)
• M8: 7,308,305 km (0.074 R)
• M9: 7,709,526 km (0.081 R)
• M10: 8,205,144 km (0.059 R)
• M11: 8,973,927 km (0.119 R)
• M12: 9,759,915 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.6

Radius: 14.8

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.26 AU - 3.44 AU

Year: 3382 Days

Day: 12.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 89,315,950 km

• M1: 184,155 km (0.077 R)
• M2: 794,065 km (0.111 R)
• M3: 1,281,755 km (0.089 R)
• M4: 1,752,389 km (0.067 R)
• M5: 2,477,191 km (0.101 R)
• M6: 3,013,649 km (0.116 R)
• M7: 4,063,228 km (0.099 R)
• M8: 4,995,821 km (0.102 R)
• M9: 6,040,912 km (0.082 R)
• M10: 7,585,061 km (0.096 R)
• M11: 8,112,094 km (0.079 R)
• M12: 8,999,509 km (0.12 R)
• M13: 10,060,457 km (0.107 R)
• M14: 11,085,352 km (0.12 R)
• M15: 11,724,883 km (0.097 R)
• M16: 12,262,537 km (0.089 R)
• M17: 15,446,579 km (0.031 R)
• M18: 15,942,495 km (0.085 R)
• M19: 18,695,844 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717

Radius: 9.3

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.7 AU - 4.22 AU

Year: 4524 Days

Day: 14.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 89,315,950 km

• M1: 117,285 km (0.117 R)
• M2: 407,505 km (0.118 R)
• M3: 812,316 km (0.115 R)
• M4: 1,504,655 km (0.094 R)
• M5: 1,916,498 km (0.112 R)
• M6: 3,255,100 km (0.07 R)
• M7: 4,202,055 km (0.11 R)
• M8: 5,051,920 km (0.113 R)
• M9: 5,517,917 km (0.074 R)
• M10: 6,254,986 km (0.079 R)
• M11: 6,631,374 km (0.035 R)
• M12: 8,592,154 km (0.119 R)
• M13: 9,788,039 km (0.055 R)
• M14: 11,597,276 km (0.103 R)
• M15: 12,070,454 km (0.071 R)
• M16: 12,556,348 km (0.061 R)
• M17: 14,961,433 km (0.113 R)
• M18: 18,032,378 km (0.029 R)
• M19: 18,667,570 km (0.109 R)
• M20: 22,286,492 km (0.111 R)
• M21: 27,497,734 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 955.9

Radius: 8

Gravity: 14.94 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 8.55 AU - 11.03 AU

Year: 21532 Days

Day: 18.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 89,315,950 km

• M1: 106,514 km (0.05 R)
• M2: 500,255 km (0.107 R)
• M3: 925,712 km (0.067 R)
• M4: 1,332,767 km (0.031 R)
• M5: 1,596,359 km (0.065 R)
• M6: 3,050,450 km (0.096 R)
• M7: 3,668,289 km (0.108 R)
• M8: 5,809,334 km (0.041 R)
• M9: 6,384,388 km (0.04 R)
• M10: 9,600,743 km (0.12 R)
• M11: 11,184,834 km (0.108 R)
• M12: 11,726,528 km (0.104 R)
• M13: 12,571,756 km (0.093 R)
• M14: 13,532,773 km (0.077 R)
• M15: 15,683,542 km (0.067 R)
• M16: 16,884,064 km (0.104 R)
• M17: 21,985,501 km (0.053 R)
• M18: 26,336,256 km (0.062 R)
• M19: 30,049,724 km (0.077 R)
• M20: 30,700,774 km (0.096 R)
• M21: 33,957,370 km (0.083 R)
• M22: 37,888,503 km (0.119 R)
• M23: 38,495,422 km (0.066 R)
• M24: 38,801,349 km (0.118 R)
• M25: 47,864,886 km (0.053 R)
• M26: 48,396,258 km (0.093 R)
• M27: 59,254,969 km (0.09 R)
• M28: 64,705,717 km (0.105 R)
• M29: 66,009,312 km (0.068 R)
• M30: 69,119,153 km (0.072 R)
• M31: 72,325,335 km (0.042 R)
• M32: 79,032,555 km (0.071 R)
• M33: 79,526,826 km (0.076 R)
• M34: 81,273,382 km (0.053 R)
• M35: 85,101,741 km (0.11 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: 508 - 19,913 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit