🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 251.3

Radius: 9.7

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.74 AU - 1.16 AU

Year: 628 Days

Day: 12.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,339,219 km

• M1: 120,725 km (0.064 R)
• M2: 486,043 km (0.075 R)
• M3: 827,875 km (0.072 R)
• M4: 1,220,419 km (0.051 R)
• M5: 1,693,597 km (0.094 R)
• M6: 2,025,854 km (0.058 R)
• M7: 2,330,136 km (0.089 R)
• M8: 2,645,788 km (0.093 R)
• M9: 3,611,293 km (0.033 R)
• M10: 4,275,358 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.6

Radius: 10.7

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.47 AU - 1.59 AU

Year: 1284 Days

Day: 11 Hours

Environment

Temp: -197 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,339,219 km

• M1: 133,142 km (0.03 R)
• M2: 482,902 km (0.11 R)
• M3: 962,214 km (0.096 R)
• M4: 1,560,605 km (0.075 R)
• M5: 2,254,141 km (0.104 R)
• M6: 2,958,896 km (0.099 R)
• M7: 4,539,547 km (0.074 R)
• M8: 4,921,471 km (0.092 R)
• M9: 5,577,308 km (0.069 R)
• M10: 6,016,078 km (0.108 R)
• M11: 6,741,927 km (0.064 R)
• M12: 7,113,528 km (0.109 R)
• M13: 7,498,892 km (0.114 R)
• M14: 9,272,226 km (0.101 R)
• M15: 9,639,488 km (0.053 R)
• M16: 10,240,722 km (0.118 R)
• M17: 11,172,119 km (0.097 R)
• M18: 12,159,016 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.7

Radius: 9.8

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.64 AU - 2.66 AU

Year: 2138 Days

Day: 13.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,339,219 km

• M1: 140,622 km (0.116 R)
• M2: 686,205 km (0.053 R)
• M3: 1,014,722 km (0.119 R)
• M4: 1,324,839 km (0.071 R)
• M5: 1,680,134 km (0.089 R)
• M6: 2,496,938 km (0.042 R)
• M7: 2,915,962 km (0.082 R)
• M8: 3,226,228 km (0.055 R)
• M9: 3,624,457 km (0.1 R)
• M10: 3,966,438 km (0.103 R)
• M11: 4,443,506 km (0.084 R)
• M12: 5,061,943 km (0.107 R)
• M13: 5,579,253 km (0.066 R)
• M14: 7,027,809 km (0.088 R)
• M15: 8,772,718 km (0.113 R)
• M16: 9,713,390 km (0.087 R)
• M17: 11,392,476 km (0.104 R)
• M18: 13,057,800 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.3

Radius: 12.8

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.17 AU - 3.01 AU

Year: 2827 Days

Day: 12.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,339,219 km

• M1: 159,172 km (0.076 R)
• M2: 667,356 km (0.086 R)
• M3: 2,179,192 km (0.071 R)
• M4: 2,762,025 km (0.055 R)
• M5: 3,201,694 km (0.073 R)
• M6: 4,243,643 km (0.062 R)
• M7: 4,961,713 km (0.08 R)
• M8: 5,453,441 km (0.082 R)
• M9: 6,380,050 km (0.105 R)
• M10: 7,323,863 km (0.109 R)
• M11: 7,933,474 km (0.04 R)
• M12: 8,482,798 km (0.108 R)
• M13: 9,522,204 km (0.032 R)
• M14: 10,107,879 km (0.078 R)
• M15: 11,775,148 km (0.091 R)
• M16: 14,363,490 km (0.076 R)
• M17: 15,413,517 km (0.09 R)
• M18: 16,029,262 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.8

Radius: 14.3

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.74 AU - 2.86 AU

Year: 3178 Days

Day: 10.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,339,219 km

• M1: 177,872 km (0.069 R)
• M2: 702,661 km (0.106 R)
• M3: 1,161,777 km (0.079 R)
• M4: 2,186,074 km (0.108 R)
• M5: 2,631,875 km (0.113 R)
• M6: 3,207,229 km (0.068 R)
• M7: 4,064,724 km (0.105 R)
• M8: 5,141,529 km (0.116 R)
• M9: 6,209,060 km (0.031 R)
• M10: 6,941,042 km (0.088 R)
• M11: 8,277,699 km (0.116 R)
• M12: 9,272,076 km (0.086 R)
• M13: 10,229,802 km (0.107 R)
• M14: 10,733,049 km (0.078 R)
• M15: 11,212,061 km (0.118 R)
• M16: 14,442,029 km (0.115 R)
• M17: 15,985,131 km (0.028 R)
• M18: 17,199,118 km (0.07 R)
• M19: 18,417,143 km (0.106 R)
• M20: 19,989,716 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.6

Radius: 13.5

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 3.48 AU - 3.74 AU

Year: 4652 Days

Day: 5.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,339,219 km

• M1: 175,478 km (0.068 R)
• M2: 761,154 km (0.118 R)
• M3: 1,196,633 km (0.09 R)
• M4: 2,133,415 km (0.089 R)
• M5: 2,842,360 km (0.073 R)
• M6: 3,768,670 km (0.051 R)
• M7: 4,220,156 km (0.072 R)
• M8: 6,688,371 km (0.073 R)
• M9: 8,248,677 km (0.106 R)
• M10: 9,094,503 km (0.054 R)
• M11: 11,004,569 km (0.101 R)
• M12: 13,791,577 km (0.064 R)
• M13: 14,325,043 km (0.088 R)
• M14: 15,661,999 km (0.096 R)
• M15: 20,171,926 km (0.119 R)
• M16: 22,138,091 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.5

Radius: 12.2

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 3.98 AU - 4.08 AU

Year: 5487 Days

Day: 7.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,339,219 km

• M1: 153,787 km (0.11 R)
• M2: 610,060 km (0.118 R)
• M3: 1,497,624 km (0.101 R)
• M4: 3,025,467 km (0.111 R)
• M5: 3,539,635 km (0.098 R)
• M6: 4,518,604 km (0.082 R)
• M7: 5,166,213 km (0.112 R)
• M8: 6,145,481 km (0.062 R)
• M9: 7,210,318 km (0.104 R)
• M10: 7,841,023 km (0.107 R)
• M11: 10,083,944 km (0.107 R)
• M12: 10,605,891 km (0.095 R)
• M13: 12,675,577 km (0.035 R)
• M14: 13,387,065 km (0.07 R)
• M15: 14,613,767 km (0.12 R)
• M16: 15,113,723 km (0.12 R)
• M17: 17,351,707 km (0.068 R)
• M18: 18,939,390 km (0.058 R)
• M19: 19,534,041 km (0.119 R)
• M20: 20,277,692 km (0.063 R)
• M21: 26,184,564 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.2

Radius: 8.3

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.48 AU - 4.72 AU

Year: 5631 Days

Day: 8.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,339,219 km

• M1: 103,223 km (0.058 R)
• M2: 509,530 km (0.088 R)
• M3: 1,576,612 km (0.08 R)
• M4: 2,119,503 km (0.035 R)
• M5: 2,498,434 km (0.115 R)
• M6: 2,868,988 km (0.098 R)
• M7: 5,686,365 km (0.081 R)
• M8: 6,269,497 km (0.093 R)
• M9: 7,486,775 km (0.104 R)
• M10: 8,332,452 km (0.117 R)
• M11: 14,260,417 km (0.087 R)
• M12: 15,335,278 km (0.1 R)
• M13: 21,392,795 km (0.048 R)
• M14: 21,948,102 km (0.111 R)
• M15: 24,042,173 km (0.117 R)
• M16: 24,416,168 km (0.095 R)
• M17: 26,662,679 km (0.12 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.2

Radius: 9.3

Gravity: 9.37 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 4.82 AU - 5.3 AU

Year: 7720 Days

Day: 5.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 27,339,219 km

• M1: 115,789 km (0.115 R)
• M2: 445,951 km (0.076 R)
• M3: 1,142,479 km (0.068 R)
• M4: 1,549,236 km (0.067 R)
• M5: 1,924,128 km (0.079 R)
• M6: 2,658,803 km (0.12 R)
• M7: 3,545,619 km (0.107 R)
• M8: 4,256,658 km (0.056 R)
• M9: 5,182,369 km (0.104 R)
• M10: 6,063,202 km (0.097 R)
• M11: 7,627,098 km (0.119 R)
• M12: 8,203,498 km (0.092 R)
• M13: 9,304,988 km (0.04 R)
• M14: 9,963,368 km (0.106 R)
• M15: 10,353,369 km (0.045 R)
• M16: 11,584,859 km (0.098 R)
• M17: 12,070,903 km (0.112 R)
• M18: 13,849,920 km (0.086 R)
• M19: 14,274,629 km (0.047 R)
• M20: 18,063,644 km (0.1 R)
• M21: 19,995,700 km (0.067 R)
• M22: 22,808,888 km (0.077 R)
• M23: 27,175,650 km (0.082 R)
• M24: 28,421,501 km (0.041 R)
• M25: 35,226,559 km (0.108 R)
• M26: 35,564,500 km (0.084 R)
• M27: 39,668,867 km (0.119 R)
• M28: 41,771,914 km (0.105 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.7

Radius: 9.1

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 5.05 AU - 5.51 AU

Year: 8229 Days

Day: 12.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 27,339,219 km

• M1: 114,742 km (0.032 R)
• M2: 411,095 km (0.091 R)
• M3: 1,030,580 km (0.106 R)
• M4: 1,503,459 km (0.057 R)
• M5: 2,101,551 km (0.101 R)
• M6: 3,985,736 km (0.079 R)
• M7: 4,843,381 km (0.068 R)
• M8: 5,761,912 km (0.095 R)
• M9: 7,555,740 km (0.102 R)
• M10: 8,749,680 km (0.092 R)
• M11: 9,135,194 km (0.076 R)
• M12: 9,451,743 km (0.042 R)
• M13: 10,064,945 km (0.084 R)
• M14: 11,553,294 km (0.055 R)
• M15: 14,797,623 km (0.104 R)
• M16: 17,070,463 km (0.11 R)
• M17: 18,352,517 km (0.033 R)
• M18: 21,452,335 km (0.074 R)
• M19: 22,225,307 km (0.099 R)
• M20: 22,582,696 km (0.109 R)
• M21: 23,975,901 km (0.046 R)
• M22: 24,884,858 km (0.084 R)
• M23: 26,530,584 km (0.059 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: 355 - 11,247 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit