🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.1

Radius: 8.7

Gravity: 9.59 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.65 AU - 0.97 AU

Year: 486 Days

Day: 11.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,105,179 km

• M1: 108,159 km (0.104 R)
• M2: 448,494 km (0.118 R)
• M3: 772,823 km (0.095 R)
• M4: 1,133,054 km (0.033 R)
• M5: 1,490,892 km (0.102 R)
• M6: 1,858,155 km (0.074 R)
• M7: 2,129,974 km (0.104 R)
• M8: 3,240,589 km (0.085 R)
• M9: 3,637,921 km (0.117 R)
• M10: 4,151,640 km (0.1 R)
• M11: 5,701,474 km (0.067 R)
• M12: 6,509,901 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210

Radius: 14.4

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.71 AU - 0.93 AU

Year: 495 Days

Day: 7.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 81,105,179 km

• M1: 179,368 km (0.061 R)
• M2: 776,862 km (0.104 R)
• M3: 1,419,235 km (0.089 R)
• M4: 1,914,105 km (0.086 R)
• M5: 2,433,060 km (0.119 R)
• M6: 3,307,609 km (0.079 R)
• M7: 3,773,457 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.4

Radius: 14.4

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.8 AU - 0.98 AU

Year: 560 Days

Day: 5.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 81,105,179 km

• M1: 179,069 km (0.097 R)
• M2: 706,252 km (0.079 R)
• M3: 1,459,028 km (0.11 R)
• M4: 1,963,921 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.5

Radius: 12.5

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.15 AU - 1.63 AU

Year: 1093 Days

Day: 9.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,105,179 km

• M1: 159,023 km (0.07 R)
• M2: 638,334 km (0.103 R)
• M3: 1,323,343 km (0.079 R)
• M4: 2,175,452 km (0.106 R)
• M5: 2,757,089 km (0.085 R)
• M6: 3,205,134 km (0.059 R)
• M7: 3,595,884 km (0.114 R)
• M8: 4,205,795 km (0.071 R)
• M9: 5,300,851 km (0.034 R)
• M10: 5,999,174 km (0.068 R)
• M11: 6,400,096 km (0.086 R)
• M12: 6,900,800 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218

Radius: 11.6

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.34 AU - 1.66 AU

Year: 1225 Days

Day: 13.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,105,179 km

• M1: 144,212 km (0.101 R)
• M2: 523,443 km (0.049 R)
• M3: 886,218 km (0.034 R)
• M4: 1,317,957 km (0.106 R)
• M5: 2,465,223 km (0.089 R)
• M6: 3,190,623 km (0.116 R)
• M7: 3,624,457 km (0.045 R)
• M8: 4,595,946 km (0.056 R)
• M9: 6,177,943 km (0.105 R)
• M10: 6,645,437 km (0.1 R)
• M11: 7,720,896 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.7

Radius: 13.9

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.66 AU - 2.1 AU

Year: 1719 Days

Day: 6.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,105,179 km

• M1: 172,935 km (0.079 R)
• M2: 657,333 km (0.036 R)
• M3: 1,129,314 km (0.086 R)
• M4: 1,617,602 km (0.119 R)
• M5: 2,283,761 km (0.034 R)
• M6: 2,722,232 km (0.08 R)
• M7: 3,706,586 km (0.099 R)
• M8: 4,430,042 km (0.117 R)
• M9: 5,183,267 km (0.095 R)
• M10: 6,399,049 km (0.116 R)
• M11: 7,126,543 km (0.043 R)
• M12: 9,675,841 km (0.095 R)
• M13: 11,156,112 km (0.041 R)
• M14: 13,371,656 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 505.5

Radius: 10.5

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 3.89 AU - 4.21 AU

Year: 5435 Days

Day: 12.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 81,105,179 km

• M1: 130,599 km (0.066 R)
• M2: 512,822 km (0.108 R)
• M3: 1,089,372 km (0.09 R)
• M4: 1,585,139 km (0.074 R)
• M5: 1,954,795 km (0.074 R)
• M6: 2,543,613 km (0.103 R)
• M7: 3,169,530 km (0.089 R)
• M8: 4,454,576 km (0.081 R)
• M9: 4,856,545 km (0.07 R)
• M10: 5,420,978 km (0.073 R)
• M11: 5,879,944 km (0.039 R)
• M12: 7,175,462 km (0.09 R)
• M13: 7,694,118 km (0.076 R)
• M14: 8,053,601 km (0.114 R)
• M15: 8,845,423 km (0.095 R)
• M16: 9,688,108 km (0.11 R)
• M17: 13,037,903 km (0.104 R)
• M18: 13,601,887 km (0.107 R)
• M19: 15,223,379 km (0.074 R)
• M20: 20,036,241 km (0.068 R)
• M21: 20,649,742 km (0.077 R)
• M22: 21,065,774 km (0.048 R)
• M23: 24,674,673 km (0.119 R)
• M24: 25,856,945 km (0.058 R)
• M25: 28,676,266 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.2

Radius: 8.6

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 5.41 AU - 5.73 AU

Year: 8766 Days

Day: 6.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,105,179 km

• M1: 108,309 km (0.115 R)
• M2: 419,772 km (0.089 R)
• M3: 727,794 km (0.093 R)
• M4: 1,364,333 km (0.096 R)
• M5: 1,675,496 km (0.109 R)
• M6: 2,005,958 km (0.105 R)
• M7: 2,411,667 km (0.108 R)
• M8: 2,907,584 km (0.073 R)
• M9: 6,037,770 km (0.034 R)
• M10: 6,405,781 km (0.093 R)
• M11: 9,538,510 km (0.116 R)
• M12: 10,038,466 km (0.109 R)
• M13: 12,070,454 km (0.097 R)
• M14: 14,470,303 km (0.116 R)
• M15: 15,074,678 km (0.074 R)
• M16: 19,454,904 km (0.116 R)
• M17: 22,005,548 km (0.112 R)
• M18: 25,004,835 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 796

Radius: 6.1

Gravity: 21.39 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 8.22 AU - 10.86 AU

Year: 19650 Days

Day: 20.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 81,105,179 km

• M1: 84,074 km (0.072 R)
• M2: 292,613 km (0.115 R)
• M3: 484,847 km (0.098 R)
• M4: 999,763 km (0.12 R)
• M5: 1,529,040 km (0.1 R)
• M6: 1,791,135 km (0.055 R)
• M7: 3,207,678 km (0.092 R)
• M8: 3,669,486 km (0.078 R)
• M9: 4,409,696 km (0.103 R)
• M10: 5,092,910 km (0.109 R)
• M11: 9,597,451 km (0.105 R)
• M12: 11,309,898 km (0.062 R)
• M13: 12,581,779 km (0.079 R)
• M14: 13,872,061 km (0.114 R)
• M15: 14,321,154 km (0.093 R)
• M16: 14,857,163 km (0.098 R)
• M17: 19,544,214 km (0.091 R)
• M18: 21,072,954 km (0.095 R)
• M19: 24,582,969 km (0.062 R)
• M20: 25,129,899 km (0.101 R)
• M21: 25,797,106 km (0.067 R)
• M22: 30,927,415 km (0.113 R)
• M23: 31,308,890 km (0.09 R)
• M24: 35,993,248 km (0.118 R)
• M25: 40,363,001 km (0.108 R)
• M26: 41,124,006 km (0.075 R)
• M27: 42,831,965 km (0.073 R)
• M28: 50,137,427 km (0.069 R)
• M29: 53,533,448 km (0.058 R)
• M30: 58,812,608 km (0.093 R)
• M31: 61,177,600 km (0.097 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 571.5

Radius: 3.1

Gravity: 59.47 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 10.93 AU - 10.93 AU

Year: 24097 Days

Day: 23.4 Hours

Environment

Temp: -246 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 81,105,179 km

• M1: 38,895 km (0.077 R)
• M2: 519,254 km (0.069 R)
• M3: 821,891 km (0.109 R)
• M4: 949,647 km (0.087 R)
• M5: 1,230,742 km (0.114 R)
• M6: 1,799,064 km (0.045 R)
• M7: 2,119,652 km (0.094 R)
• M8: 2,719,988 km (0.073 R)
• M9: 3,281,280 km (0.106 R)
• M10: 4,417,027 km (0.102 R)
• M11: 5,916,895 km (0.111 R)
• M12: 7,725,234 km (0.061 R)
• M13: 9,060,096 km (0.08 R)
• M14: 9,870,916 km (0.073 R)
• M15: 10,171,907 km (0.076 R)
• M16: 13,306,581 km (0.073 R)
• M17: 14,351,522 km (0.055 R)
• M18: 21,091,056 km (0.104 R)
• M19: 22,611,120 km (0.104 R)
• M20: 30,045,087 km (0.097 R)
• M21: 31,834,726 km (0.025 R)
• M22: 33,424,353 km (0.104 R)
• M23: 35,484,615 km (0.093 R)
• M24: 42,170,443 km (0.057 R)
• M25: 42,485,646 km (0.065 R)
• M26: 45,890,643 km (0.085 R)
• M27: 48,431,114 km (0.039 R)
• M28: 48,950,218 km (0.105 R)
• M29: 54,160,862 km (0.117 R)
• M30: 72,887,673 km (0.108 R)
• M31: 73,569,091 km (0.078 R)
• M32: 75,639,227 km (0.071 R)
• M33: 79,654,733 km (0.066 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 161 - 18,814 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit