🌌 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: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.1

Radius: 12.6

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.55 AU - 0.59 AU

Year: 287 Days

Day: 7.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 78,967,913 km

• M1: 156,629 km (0.055 R)
• M2: 617,540 km (0.055 R)
• M3: 1,015,470 km (0.11 R)
• M4: 1,629,869 km (0.112 R)
• M5: 2,348,986 km (0.067 R)
• M6: 2,885,145 km (0.109 R)
• M7: 3,340,072 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.7

Radius: 10.4

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.54 AU - 0.84 AU

Year: 382 Days

Day: 13.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,967,913 km

• M1: 129,402 km (0.088 R)
• M2: 462,856 km (0.091 R)
• M3: 787,782 km (0.065 R)
• M4: 1,246,599 km (0.082 R)
• M5: 1,774,829 km (0.088 R)
• M6: 2,163,484 km (0.049 R)
• M7: 2,707,273 km (0.032 R)
• M8: 3,115,226 km (0.105 R)
• M9: 3,528,116 km (0.093 R)
• M10: 4,095,541 km (0.105 R)
• M11: 5,333,314 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.1

Radius: 12.4

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.79 AU - 0.87 AU

Year: 504 Days

Day: 14.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 78,967,913 km

• M1: 154,983 km (0.042 R)
• M2: 612,454 km (0.055 R)
• M3: 1,172,399 km (0.053 R)
• M4: 1,565,691 km (0.093 R)
• M5: 2,681,542 km (0.094 R)
• M6: 4,436,175 km (0.085 R)
• M7: 4,918,030 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170

Radius: 11.1

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.85 AU - 0.97 AU

Year: 579 Days

Day: 10 Hours

Environment

Temp: -180 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 78,967,913 km

• M1: 138,079 km (0.101 R)
• M2: 487,839 km (0.062 R)
• M3: 934,538 km (0.092 R)
• M4: 1,294,321 km (0.116 R)
• M5: 1,810,134 km (0.116 R)
• M6: 2,164,083 km (0.064 R)
• M7: 3,035,341 km (0.077 R)
• M8: 3,507,472 km (0.068 R)
• M9: 4,455,324 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.5

Radius: 9.2

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.88 AU - 1.12 AU

Year: 667 Days

Day: 14.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 78,967,913 km

• M1: 115,190 km (0.087 R)
• M2: 813,962 km (0.108 R)
• M3: 1,629,869 km (0.115 R)
• M4: 2,370,079 km (0.097 R)
• M5: 3,446,137 km (0.104 R)
• M6: 4,133,090 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.4

Radius: 11.9

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.85 AU - 1.85 AU

Year: 1678 Days

Day: 7.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 78,967,913 km

• M1: 147,952 km (0.1 R)
• M2: 566,078 km (0.053 R)
• M3: 1,075,160 km (0.096 R)
• M4: 1,452,895 km (0.103 R)
• M5: 2,844,304 km (0.055 R)
• M6: 3,361,015 km (0.047 R)
• M7: 5,813,373 km (0.103 R)
• M8: 6,403,088 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.1

Radius: 10

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.12 AU - 2.26 AU

Year: 2161 Days

Day: 12.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 78,967,913 km

• M1: 124,316 km (0.083 R)
• M2: 545,883 km (0.058 R)
• M3: 894,745 km (0.097 R)
• M4: 1,323,642 km (0.072 R)
• M5: 2,014,335 km (0.081 R)
• M6: 3,824,021 km (0.108 R)
• M7: 4,298,396 km (0.029 R)
• M8: 4,733,127 km (0.066 R)
• M9: 5,602,889 km (0.071 R)
• M10: 6,053,029 km (0.107 R)
• M11: 6,454,400 km (0.106 R)
• M12: 7,389,836 km (0.11 R)
• M13: 7,793,899 km (0.078 R)
• M14: 8,646,308 km (0.113 R)
• M15: 8,974,077 km (0.096 R)
• M16: 9,372,157 km (0.095 R)
• M17: 10,137,949 km (0.107 R)
• M18: 10,502,668 km (0.115 R)
• M19: 11,364,202 km (0.098 R)
• M20: 12,235,011 km (0.117 R)
• M21: 12,724,944 km (0.082 R)

Asteroid Belt

Center: 3.64 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.6

Radius: 9.3

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 5.06 AU - 5.1 AU

Year: 7635 Days

Day: 8.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 62.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,967,913 km

• M1: 116,537 km (0.115 R)
• M2: 458,218 km (0.116 R)
• M3: 826,678 km (0.043 R)
• M4: 1,405,173 km (0.106 R)
• M5: 1,727,107 km (0.103 R)
• M6: 2,625,443 km (0.083 R)
• M7: 3,852,444 km (0.117 R)
• M8: 4,825,130 km (0.096 R)
• M9: 5,863,040 km (0.113 R)
• M10: 8,336,940 km (0.119 R)
• M11: 9,161,074 km (0.104 R)
• M12: 9,655,944 km (0.074 R)
• M13: 11,911,730 km (0.084 R)
• M14: 12,204,194 km (0.096 R)
• M15: 15,341,411 km (0.072 R)
• M16: 19,311,888 km (0.098 R)
• M17: 20,680,858 km (0.088 R)
• M18: 22,481,718 km (0.112 R)
• M19: 23,458,442 km (0.07 R)
• M20: 24,228,722 km (0.069 R)
• M21: 26,146,267 km (0.062 R)
• M22: 27,734,398 km (0.044 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 527.5

Radius: 4.4

Gravity: 27.25 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 10.72 AU - 11.14 AU

Year: 24097 Days

Day: 15.5 Hours

Environment

Temp: -243 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 78,967,913 km

• M1: 54,753 km (0.106 R)
• M2: 275,858 km (0.068 R)
• M3: 442,361 km (0.106 R)
• M4: 1,052,870 km (0.112 R)
• M5: 1,215,184 km (0.106 R)
• M6: 1,378,694 km (0.065 R)
• M7: 1,862,344 km (0.114 R)
• M8: 2,916,410 km (0.101 R)
• M9: 3,525,872 km (0.095 R)
• M10: 3,675,470 km (0.093 R)
• M11: 3,955,517 km (0.092 R)
• M12: 4,488,235 km (0.058 R)
• M13: 5,029,780 km (0.107 R)
• M14: 7,293,794 km (0.119 R)
• M15: 9,567,981 km (0.034 R)
• M16: 9,800,904 km (0.11 R)
• M17: 10,097,557 km (0.089 R)
• M18: 10,278,271 km (0.094 R)
• M19: 12,206,588 km (0.066 R)
• M20: 13,112,403 km (0.109 R)
• M21: 16,179,608 km (0.088 R)
• M22: 18,590,228 km (0.087 R)
• M23: 18,953,153 km (0.11 R)
• M24: 20,548,016 km (0.079 R)
• M25: 24,540,633 km (0.088 R)
• M26: 24,758,298 km (0.108 R)
• M27: 26,318,005 km (0.047 R)
• M28: 27,942,040 km (0.117 R)
• M29: 28,179,452 km (0.098 R)
• M30: 30,126,767 km (0.059 R)
• M31: 30,753,283 km (0.057 R)
• M32: 32,553,544 km (0.107 R)
• M33: 36,503,975 km (0.073 R)
• M34: 42,616,843 km (0.094 R)
• M35: 43,089,123 km (0.116 R)
• M36: 45,667,293 km (0.059 R)
• M37: 46,161,864 km (0.104 R)
• M38: 46,826,826 km (0.054 R)
• M39: 48,346,441 km (0.056 R)
• M40: 58,546,623 km (0.119 R)
• M41: 66,861,871 km (0.09 R)
• M42: 68,355,905 km (0.04 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: 482 - 18,784 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit