🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.3

Radius: 14

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.78 AU - 1 AU

Year: 569 Days

Day: 5.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,503,981 km

• M1: 174,132 km (0.099 R)
• M2: 741,108 km (0.095 R)
• M3: 1,219,223 km (0.104 R)
• M4: 2,240,378 km (0.037 R)
• M5: 3,183,592 km (0.075 R)
• M6: 3,642,409 km (0.08 R)
• M7: 4,303,931 km (0.089 R)
• M8: 5,377,894 km (0.111 R)
• M9: 6,276,379 km (0.073 R)
• M10: 6,922,641 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.6

Radius: 11.9

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.17 AU - 1.73 AU

Year: 1184 Days

Day: 8.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,503,981 km

• M1: 148,999 km (0.081 R)
• M2: 589,565 km (0.089 R)
• M3: 1,545,047 km (0.063 R)
• M4: 1,982,471 km (0.062 R)
• M5: 2,562,013 km (0.115 R)
• M6: 3,140,807 km (0.072 R)
• M7: 3,680,556 km (0.091 R)
• M8: 4,742,701 km (0.057 R)
• M9: 5,119,538 km (0.082 R)
• M10: 7,095,876 km (0.092 R)
• M11: 8,349,356 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.2

Radius: 14.8

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.47 AU - 1.69 AU

Year: 1347 Days

Day: 12.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,503,981 km

• M1: 184,005 km (0.032 R)
• M2: 736,171 km (0.052 R)
• M3: 1,284,447 km (0.047 R)
• M4: 2,403,140 km (0.093 R)
• M5: 2,907,734 km (0.08 R)
• M6: 3,407,391 km (0.102 R)
• M7: 4,382,021 km (0.086 R)
• M8: 5,880,991 km (0.112 R)
• M9: 7,620,815 km (0.096 R)
• M10: 8,271,117 km (0.09 R)
• M11: 9,376,495 km (0.099 R)
• M12: 10,060,158 km (0.041 R)
• M13: 10,743,670 km (0.052 R)
• M14: 12,276,600 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.6

Radius: 11.4

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 2.5 AU - 3.28 AU

Year: 3332 Days

Day: 6.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,503,981 km

• M1: 143,764 km (0.083 R)
• M2: 729,439 km (0.045 R)
• M3: 1,167,911 km (0.052 R)
• M4: 1,856,809 km (0.068 R)
• M5: 2,316,224 km (0.12 R)
• M6: 3,807,565 km (0.028 R)
• M7: 4,371,699 km (0.119 R)
• M8: 4,892,000 km (0.045 R)
• M9: 5,860,347 km (0.081 R)
• M10: 9,651,905 km (0.102 R)
• M11: 10,168,466 km (0.049 R)
• M12: 11,430,923 km (0.099 R)
• M13: 14,623,641 km (0.103 R)
• M14: 15,358,914 km (0.113 R)
• M15: 19,598,967 km (0.092 R)
• M16: 20,492,964 km (0.04 R)
• M17: 22,777,024 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.8

Radius: 10.2

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.23 AU - 3.75 AU

Year: 4422 Days

Day: 11.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 36,503,981 km

• M1: 126,859 km (0.071 R)
• M2: 651,648 km (0.05 R)
• M3: 2,184,129 km (0.03 R)
• M4: 3,370,440 km (0.114 R)
• M5: 5,934,248 km (0.072 R)
• M6: 7,286,613 km (0.102 R)
• M7: 7,768,318 km (0.057 R)
• M8: 9,664,621 km (0.032 R)
• M9: 14,031,981 km (0.112 R)
• M10: 14,941,985 km (0.111 R)
• M11: 15,777,339 km (0.101 R)
• M12: 17,178,024 km (0.06 R)
• M13: 18,219,225 km (0.114 R)
• M14: 21,455,476 km (0.053 R)
• M15: 24,139,860 km (0.049 R)
• M16: 25,996,071 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.4

Radius: 14.4

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.9 AU - 4.18 AU

Year: 4517 Days

Day: 12.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,503,981 km

• M1: 179,368 km (0.083 R)
• M2: 704,307 km (0.085 R)
• M3: 1,513,033 km (0.037 R)
• M4: 2,412,864 km (0.047 R)
• M5: 3,477,702 km (0.094 R)
• M6: 4,810,170 km (0.052 R)
• M7: 6,719,488 km (0.095 R)
• M8: 7,790,309 km (0.05 R)
• M9: 10,490,850 km (0.054 R)
• M10: 11,931,029 km (0.111 R)
• M11: 13,552,071 km (0.066 R)
• M12: 14,360,797 km (0.093 R)
• M13: 17,857,348 km (0.111 R)
• M14: 20,180,603 km (0.114 R)
• M15: 25,098,932 km (0.096 R)
• M16: 25,826,277 km (0.054 R)
• M17: 27,238,481 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.3

Radius: 8.8

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 3.92 AU - 4.94 AU

Year: 6324 Days

Day: 10.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,503,981 km

• M1: 109,655 km (0.098 R)
• M2: 490,681 km (0.09 R)
• M3: 1,164,619 km (0.104 R)
• M4: 1,682,826 km (0.063 R)
• M5: 2,029,894 km (0.055 R)
• M6: 3,158,909 km (0.094 R)
• M7: 3,447,633 km (0.094 R)
• M8: 3,903,308 km (0.105 R)
• M9: 4,909,802 km (0.056 R)
• M10: 5,849,426 km (0.111 R)
• M11: 6,968,269 km (0.089 R)
• M12: 7,293,794 km (0.119 R)
• M13: 8,811,015 km (0.052 R)
• M14: 9,544,494 km (0.082 R)
• M15: 11,309,300 km (0.062 R)
• M16: 12,696,222 km (0.075 R)
• M17: 14,717,289 km (0.106 R)
• M18: 15,038,027 km (0.104 R)
• M19: 15,748,766 km (0.091 R)
• M20: 20,425,495 km (0.072 R)
• M21: 20,824,772 km (0.099 R)
• M22: 25,489,532 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.2

Radius: 9.4

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 4.16 AU - 6.82 AU

Year: 8725 Days

Day: 13 Hours

Environment

Temp: -229 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,503,981 km

• M1: 124,017 km (0.052 R)
• M2: 420,669 km (0.077 R)
• M3: 968,646 km (0.097 R)
• M4: 1,348,176 km (0.099 R)
• M5: 2,415,108 km (0.078 R)
• M6: 2,862,106 km (0.097 R)
• M7: 4,929,100 km (0.079 R)
• M8: 6,068,288 km (0.077 R)
• M9: 6,410,418 km (0.026 R)
• M10: 6,864,448 km (0.113 R)
• M11: 8,898,530 km (0.076 R)
• M12: 10,489,055 km (0.096 R)
• M13: 14,496,931 km (0.101 R)
• M14: 16,387,848 km (0.111 R)
• M15: 17,423,514 km (0.107 R)
• M16: 18,762,415 km (0.115 R)
• M17: 19,895,470 km (0.083 R)
• M18: 24,260,137 km (0.095 R)
• M19: 24,572,049 km (0.077 R)
• M20: 25,283,536 km (0.105 R)
• M21: 28,786,520 km (0.113 R)
• M22: 29,844,027 km (0.045 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.4

Radius: 10.8

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 4.59 AU - 6.49 AU

Year: 8844 Days

Day: 5.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 36,503,981 km

• M1: 134,339 km (0.117 R)
• M2: 529,128 km (0.091 R)
• M3: 1,009,935 km (0.104 R)
• M4: 1,488,499 km (0.028 R)
• M5: 1,825,543 km (0.081 R)
• M6: 2,842,659 km (0.098 R)
• M7: 3,466,931 km (0.12 R)
• M8: 3,854,240 km (0.107 R)
• M9: 6,453,353 km (0.06 R)
• M10: 7,010,605 km (0.047 R)
• M11: 7,499,341 km (0.119 R)
• M12: 7,871,990 km (0.103 R)
• M13: 8,951,937 km (0.104 R)
• M14: 12,594,196 km (0.104 R)
• M15: 13,073,358 km (0.112 R)
• M16: 13,664,419 km (0.114 R)
• M17: 14,480,027 km (0.099 R)
• M18: 18,990,403 km (0.097 R)
• M19: 20,791,262 km (0.116 R)
• M20: 21,191,436 km (0.101 R)
• M21: 22,423,075 km (0.065 R)
• M22: 23,341,905 km (0.049 R)
• M23: 25,405,758 km (0.029 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 167

Radius: 6.9

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 6.19 AU - 8.47 AU

Year: 13460 Days

Day: 20 Hours

Environment

Temp: -231 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 36,503,981 km

• M1: 85,869 km (0.095 R)
• M2: 432,787 km (0.084 R)
• M3: 661,671 km (0.084 R)
• M4: 920,027 km (0.106 R)
• M5: 1,202,617 km (0.049 R)
• M6: 2,052,782 km (0.087 R)
• M7: 3,209,323 km (0.048 R)
• M8: 4,063,228 km (0.068 R)
• M9: 4,556,602 km (0.055 R)
• M10: 4,916,684 km (0.067 R)
• M11: 5,176,984 km (0.07 R)
• M12: 5,477,077 km (0.089 R)
• M13: 6,046,297 km (0.1 R)
• M14: 7,228,270 km (0.116 R)
• M15: 7,991,518 km (0.113 R)
• M16: 9,192,041 km (0.093 R)
• M17: 9,767,544 km (0.113 R)
• M18: 12,101,570 km (0.075 R)
• M19: 18,662,035 km (0.11 R)
• M20: 19,154,661 km (0.116 R)
• M21: 29,473,623 km (0.078 R)
• M22: 31,805,405 km (0.118 R)
• M23: 34,572,517 km (0.095 R)
• M24: 36,285,861 km (0.075 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 433 - 15,051 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit