🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.1

Radius: 11.1

Gravity: 7.91 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.58 AU - 0.66 AU

Year: 331 Days

Day: 6.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,794,750 km

• M1: 138,079 km (0.11 R)
• M2: 565,929 km (0.077 R)
• M3: 1,228,647 km (0.097 R)
• M4: 1,675,197 km (0.079 R)
• M5: 2,053,380 km (0.113 R)
• M6: 2,923,442 km (0.12 R)
• M7: 3,316,286 km (0.073 R)
• M8: 4,049,914 km (0.091 R)
• M9: 4,441,710 km (0.03 R)
• M10: 5,177,134 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.6

Radius: 11.1

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.63 AU - 0.73 AU

Year: 380 Days

Day: 8.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,794,750 km

• M1: 138,228 km (0.063 R)
• M2: 483,351 km (0.079 R)
• M3: 1,075,609 km (0.077 R)
• M4: 1,638,097 km (0.105 R)
• M5: 2,000,124 km (0.032 R)
• M6: 2,570,690 km (0.105 R)
• M7: 3,033,695 km (0.108 R)
• M8: 3,380,463 km (0.044 R)
• M9: 3,938,164 km (0.076 R)
• M10: 4,611,953 km (0.108 R)
• M11: 5,087,973 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382

Radius: 14.3

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.08 AU - 1.3 AU

Year: 880 Days

Day: 9.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,794,750 km

• M1: 179,517 km (0.057 R)
• M2: 669,899 km (0.041 R)
• M3: 1,190,051 km (0.113 R)
• M4: 1,785,151 km (0.06 R)
• M5: 2,421,840 km (0.111 R)
• M6: 2,955,306 km (0.106 R)
• M7: 4,263,240 km (0.058 R)
• M8: 5,502,958 km (0.077 R)
• M9: 6,844,851 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349

Radius: 14.2

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.11 AU - 1.61 AU

Year: 1076 Days

Day: 9.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,794,750 km

• M1: 176,675 km (0.116 R)
• M2: 707,299 km (0.104 R)
• M3: 1,282,054 km (0.116 R)
• M4: 2,092,575 km (0.111 R)
• M5: 3,012,004 km (0.059 R)
• M6: 3,669,935 km (0.046 R)
• M7: 4,768,582 km (0.084 R)
• M8: 5,385,972 km (0.063 R)
• M9: 7,244,576 km (0.081 R)
• M10: 8,233,867 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391

Radius: 10.5

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.46 AU - 2.18 AU

Year: 1665 Days

Day: 11.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,794,750 km

• M1: 130,599 km (0.098 R)
• M2: 632,350 km (0.032 R)
• M3: 1,018,911 km (0.096 R)
• M4: 1,374,505 km (0.057 R)
• M5: 1,747,154 km (0.114 R)
• M6: 3,051,049 km (0.063 R)
• M7: 3,600,073 km (0.091 R)
• M8: 4,041,386 km (0.098 R)
• M9: 4,761,700 km (0.097 R)
• M10: 5,586,732 km (0.088 R)
• M11: 6,180,187 km (0.089 R)
• M12: 6,527,853 km (0.04 R)
• M13: 9,892,907 km (0.057 R)
• M14: 10,434,451 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449

Radius: 10.6

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.02 AU - 2.08 AU

Year: 1991 Days

Day: 13.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,794,750 km

• M1: 133,740 km (0.104 R)
• M2: 464,352 km (0.097 R)
• M3: 838,496 km (0.092 R)
• M4: 1,677,441 km (0.075 R)
• M5: 2,458,940 km (0.085 R)
• M6: 4,672,091 km (0.107 R)
• M7: 5,784,950 km (0.075 R)
• M8: 6,208,760 km (0.035 R)
• M9: 10,013,333 km (0.104 R)
• M10: 10,521,966 km (0.105 R)
• M11: 13,087,271 km (0.113 R)
• M12: 13,861,140 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.9

Radius: 14.2

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.25 AU - 2.47 AU

Year: 2459 Days

Day: 6.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,794,750 km

• M1: 176,525 km (0.09 R)
• M2: 671,994 km (0.094 R)
• M3: 1,126,023 km (0.075 R)
• M4: 2,010,595 km (0.09 R)
• M5: 2,458,192 km (0.1 R)
• M6: 3,621,914 km (0.104 R)
• M7: 4,294,057 km (0.116 R)
• M8: 5,365,776 km (0.052 R)
• M9: 7,539,433 km (0.07 R)
• M10: 8,063,325 km (0.055 R)
• M11: 8,752,373 km (0.101 R)
• M12: 9,905,473 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.3

Radius: 8.2

Gravity: 13.51 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.59 AU - 4.61 AU

Year: 5631 Days

Day: 9.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 45,794,750 km

• M1: 102,475 km (0.091 R)
• M2: 397,033 km (0.077 R)
• M3: 822,489 km (0.086 R)
• M4: 1,148,164 km (0.082 R)
• M5: 1,886,429 km (0.069 R)
• M6: 2,161,240 km (0.083 R)
• M7: 2,988,666 km (0.081 R)
• M8: 4,263,091 km (0.119 R)
• M9: 8,471,428 km (0.112 R)
• M10: 9,183,664 km (0.066 R)
• M11: 11,360,462 km (0.1 R)
• M12: 11,864,607 km (0.118 R)
• M13: 12,489,029 km (0.05 R)
• M14: 13,916,940 km (0.082 R)
• M15: 18,572,426 km (0.12 R)
• M16: 19,130,725 km (0.078 R)
• M17: 20,280,834 km (0.061 R)
• M18: 21,705,604 km (0.028 R)
• M19: 22,481,718 km (0.028 R)
• M20: 24,836,986 km (0.057 R)
• M21: 26,030,927 km (0.065 R)
• M22: 26,906,823 km (0.066 R)
• M23: 29,747,088 km (0.117 R)
• M24: 32,278,433 km (0.081 R)
• M25: 33,596,391 km (0.063 R)
• M26: 34,844,486 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 426

Radius: 3.9

Gravity: 28.01 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 6.01 AU - 7.45 AU

Year: 11842 Days

Day: 16.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 96.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 45,794,750 km

• M1: 48,769 km (0.055 R)
• M2: 319,691 km (0.064 R)
• M3: 466,147 km (0.031 R)
• M4: 590,762 km (0.09 R)
• M5: 890,257 km (0.111 R)
• M6: 1,085,333 km (0.097 R)
• M7: 1,604,437 km (0.096 R)
• M8: 2,272,990 km (0.099 R)
• M9: 2,699,942 km (0.096 R)
• M10: 2,846,548 km (0.056 R)
• M11: 4,244,989 km (0.072 R)
• M12: 4,677,776 km (0.109 R)
• M13: 4,982,207 km (0.12 R)
• M14: 5,299,804 km (0.066 R)
• M15: 6,260,671 km (0.105 R)
• M16: 7,453,864 km (0.085 R)
• M17: 8,431,486 km (0.064 R)
• M18: 9,113,353 km (0.051 R)
• M19: 10,330,182 km (0.073 R)
• M20: 11,378,564 km (0.049 R)
• M21: 12,153,331 km (0.1 R)
• M22: 12,903,714 km (0.098 R)
• M23: 17,052,212 km (0.036 R)
• M24: 19,193,706 km (0.109 R)
• M25: 32,189,572 km (0.058 R)
• M26: 34,863,634 km (0.093 R)
• M27: 35,670,565 km (0.104 R)
• M28: 43,368,722 km (0.042 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 12,186 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit