🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.6 AU - 0.66 AU

Year: 323 Days

Day: 37 Hours

Environment

Temp: -128 °C

Axial Tilt: 102.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,525,812 km

• M1: 149,897 km (0.046 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.5

Radius: 14.7

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.69 AU - 1.09 AU

Year: 542 Days

Day: 9 Hours

Environment

Temp: -156 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,525,812 km

• M1: 182,958 km (0.117 R)
• M2: 650,152 km (0.09 R)
• M3: 1,355,506 km (0.069 R)
• M4: 1,844,691 km (0.034 R)
• M5: 2,473,152 km (0.091 R)
• M6: 3,802,329 km (0.109 R)
• M7: 4,588,466 km (0.1 R)
• M8: 5,447,158 km (0.103 R)
• M9: 6,242,719 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.2

Radius: 8.9

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.98 AU - 1.14 AU

Year: 705 Days

Day: 7.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,525,812 km

• M1: 111,151 km (0.095 R)
• M2: 423,811 km (0.099 R)
• M3: 733,478 km (0.066 R)
• M4: 1,047,933 km (0.118 R)
• M5: 1,440,179 km (0.099 R)
• M6: 1,855,014 km (0.083 R)
• M7: 2,300,815 km (0.08 R)
• M8: 2,678,400 km (0.118 R)
• M9: 3,028,160 km (0.089 R)
• M10: 3,622,961 km (0.096 R)
• M11: 4,279,097 km (0.05 R)
• M12: 4,650,998 km (0.074 R)
• M13: 4,963,957 km (0.058 R)
• M14: 5,494,281 km (0.099 R)
• M15: 6,172,408 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.8

Radius: 10

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.02 AU - 2.1 AU

Year: 1909 Days

Day: 14.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,525,812 km

• M1: 502,798 km (0.111 R)
• M2: 1,307,186 km (0.111 R)
• M3: 1,900,043 km (0.091 R)
• M4: 2,663,740 km (0.083 R)
• M5: 3,254,053 km (0.052 R)
• M6: 3,796,944 km (0.097 R)
• M7: 4,256,209 km (0.111 R)
• M8: 4,809,721 km (0.065 R)
• M9: 5,600,495 km (0.101 R)
• M10: 6,288,795 km (0.063 R)
• M11: 10,311,332 km (0.111 R)
• M12: 10,670,517 km (0.111 R)
• M13: 11,310,497 km (0.093 R)
• M14: 11,622,558 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.6

Radius: 11.5

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 2.28 AU - 3.38 AU

Year: 3074 Days

Day: 13.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,525,812 km

• M1: 143,764 km (0.077 R)
• M2: 523,742 km (0.112 R)
• M3: 940,821 km (0.085 R)
• M4: 1,307,785 km (0.118 R)
• M5: 1,986,809 km (0.093 R)
• M6: 4,403,264 km (0.071 R)
• M7: 7,569,802 km (0.063 R)
• M8: 10,204,968 km (0.057 R)
• M9: 11,217,896 km (0.086 R)
• M10: 11,689,129 km (0.075 R)
• M11: 14,846,392 km (0.084 R)
• M12: 16,545,076 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.9

Radius: 14.1

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 3.17 AU - 4.65 AU

Year: 4992 Days

Day: 10.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 68,525,812 km

• M1: 175,329 km (0.093 R)
• M2: 623,075 km (0.099 R)
• M3: 1,082,789 km (0.111 R)
• M4: 1,630,467 km (0.102 R)
• M5: 2,131,470 km (0.101 R)
• M6: 2,630,379 km (0.101 R)
• M7: 4,620,480 km (0.105 R)
• M8: 5,583,741 km (0.111 R)
• M9: 6,479,981 km (0.109 R)
• M10: 7,048,752 km (0.106 R)
• M11: 7,614,382 km (0.103 R)
• M12: 8,134,085 km (0.111 R)
• M13: 9,751,088 km (0.098 R)
• M14: 10,819,068 km (0.085 R)
• M15: 11,816,287 km (0.101 R)
• M16: 12,873,794 km (0.096 R)
• M17: 14,718,934 km (0.052 R)
• M18: 15,883,404 km (0.061 R)
• M19: 16,611,048 km (0.064 R)
• M20: 18,727,260 km (0.094 R)
• M21: 20,234,458 km (0.056 R)
• M22: 21,234,819 km (0.098 R)
• M23: 22,267,942 km (0.113 R)
• M24: 26,149,109 km (0.115 R)
• M25: 26,738,226 km (0.108 R)
• M26: 29,725,994 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 800.5

Radius: 9.5

Gravity: 8.87 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 5.64 AU - 6.28 AU

Year: 9395 Days

Day: 13.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 68,525,812 km

• M1: 118,482 km (0.08 R)
• M2: 522,246 km (0.07 R)
• M3: 837,299 km (0.077 R)
• M4: 1,950,756 km (0.037 R)
• M5: 2,665,834 km (0.077 R)
• M6: 3,932,479 km (0.11 R)
• M7: 5,871,866 km (0.105 R)
• M8: 6,678,647 km (0.076 R)
• M9: 6,989,811 km (0.115 R)
• M10: 8,466,791 km (0.111 R)
• M11: 8,971,235 km (0.053 R)
• M12: 9,350,615 km (0.096 R)
• M13: 9,939,731 km (0.072 R)
• M14: 10,605,741 km (0.119 R)
• M15: 11,138,010 km (0.115 R)
• M16: 13,508,538 km (0.077 R)
• M17: 16,266,674 km (0.036 R)
• M18: 22,346,332 km (0.103 R)
• M19: 22,956,541 km (0.042 R)
• M20: 24,946,642 km (0.084 R)
• M21: 25,508,831 km (0.098 R)
• M22: 27,049,090 km (0.112 R)
• M23: 30,526,642 km (0.091 R)
• M24: 31,603,597 km (0.113 R)
• M25: 33,492,270 km (0.082 R)
• M26: 37,493,116 km (0.107 R)
• M27: 41,018,390 km (0.094 R)
• M28: 41,801,535 km (0.098 R)
• M29: 46,853,006 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 941.2

Radius: 3.6

Gravity: 72.62 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 7.47 AU - 8.51 AU

Year: 14583 Days

Day: 21.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 68,525,812 km

• M1: 138,378 km (0.091 R)
• M2: 734,974 km (0.092 R)
• M3: 1,167,013 km (0.114 R)
• M4: 2,483,474 km (0.115 R)
• M5: 2,596,421 km (0.08 R)
• M6: 2,808,251 km (0.034 R)
• M7: 3,108,494 km (0.042 R)
• M8: 3,266,470 km (0.08 R)
• M9: 3,485,481 km (0.078 R)
• M10: 3,983,343 km (0.053 R)
• M11: 7,109,340 km (0.085 R)
• M12: 7,524,025 km (0.067 R)
• M13: 9,398,636 km (0.1 R)
• M14: 9,673,746 km (0.116 R)
• M15: 12,461,802 km (0.118 R)
• M16: 13,475,477 km (0.108 R)
• M17: 13,614,603 km (0.044 R)
• M18: 19,465,525 km (0.079 R)
• M19: 23,333,079 km (0.114 R)
• M20: 29,987,791 km (0.09 R)
• M21: 35,503,015 km (0.11 R)
• M22: 35,635,559 km (0.114 R)
• M23: 37,803,083 km (0.104 R)
• M24: 42,398,281 km (0.045 R)
• M25: 47,351,915 km (0.1 R)
• M26: 50,468,338 km (0.074 R)
• M27: 51,820,403 km (0.071 R)
• M28: 52,677,599 km (0.107 R)
• M29: 67,707,248 km (0.096 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 536 - 12,049 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit