🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.5

Radius: 9.8

Gravity: 9.83 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.62 AU - 0.98 AU

Year: 462 Days

Day: 9.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 145.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,510,145 km

• M1: 121,922 km (0.048 R)
• M2: 436,676 km (0.101 R)
• M3: 787,184 km (0.102 R)
• M4: 1,160,879 km (0.056 R)
• M5: 1,507,647 km (0.104 R)
• M6: 1,915,601 km (0.118 R)
• M7: 2,426,328 km (0.062 R)
• M8: 3,025,767 km (0.026 R)
• M9: 3,869,349 km (0.056 R)
• M10: 4,324,276 km (0.118 R)
• M11: 4,673,138 km (0.08 R)
• M12: 5,057,006 km (0.083 R)
• M13: 5,998,725 km (0.099 R)
• M14: 6,768,406 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.9

Radius: 14.1

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.72 AU - 1.1 AU

Year: 561 Days

Day: 10.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,510,145 km

• M1: 175,628 km (0.08 R)
• M2: 653,593 km (0.103 R)
• M3: 1,183,618 km (0.106 R)
• M4: 1,698,085 km (0.093 R)
• M5: 2,284,958 km (0.078 R)
• M6: 2,733,751 km (0.066 R)
• M7: 3,444,341 km (0.033 R)
• M8: 4,847,869 km (0.072 R)
• M9: 5,392,405 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56

Radius: 11.2

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.86 AU - 1.1 AU

Year: 626 Days

Day: 10.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 68,510,145 km

• M1: 140,323 km (0.108 R)
• M2: 794,514 km (0.077 R)
• M3: 1,778,270 km (0.111 R)
• M4: 2,302,461 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.7

Radius: 9.1

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.67 AU - 1.81 AU

Year: 1482 Days

Day: 8.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 77.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,510,145 km

• M1: 113,246 km (0.076 R)
• M2: 416,181 km (0.107 R)
• M3: 887,564 km (0.097 R)
• M4: 1,220,719 km (0.094 R)
• M5: 2,581,461 km (0.094 R)
• M6: 3,651,834 km (0.11 R)
• M7: 5,187,157 km (0.086 R)
• M8: 5,989,899 km (0.113 R)
• M9: 7,112,332 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.3

Radius: 13.1

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.71 AU - 3.77 AU

Year: 3766 Days

Day: 5.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,510,145 km

• M1: 162,912 km (0.071 R)
• M2: 585,077 km (0.044 R)
• M3: 1,250,339 km (0.114 R)
• M4: 1,680,433 km (0.059 R)
• M5: 2,197,593 km (0.071 R)
• M6: 2,788,504 km (0.104 R)
• M7: 3,446,436 km (0.117 R)
• M8: 4,513,069 km (0.066 R)
• M9: 4,953,933 km (0.101 R)
• M10: 6,004,709 km (0.101 R)
• M11: 6,627,036 km (0.056 R)
• M12: 7,869,147 km (0.099 R)
• M13: 8,791,568 km (0.036 R)
• M14: 12,663,011 km (0.117 R)
• M15: 13,169,101 km (0.04 R)
• M16: 14,668,370 km (0.051 R)
• M17: 15,852,288 km (0.082 R)
• M18: 16,877,482 km (0.089 R)
• M19: 17,604,079 km (0.12 R)
• M20: 19,060,115 km (0.106 R)
• M21: 19,971,316 km (0.103 R)
• M22: 20,975,267 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.3

Radius: 13.2

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 4.43 AU - 4.63 AU

Year: 6225 Days

Day: 7.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,510,145 km

• M1: 164,109 km (0.107 R)
• M2: 683,363 km (0.063 R)
• M3: 1,380,489 km (0.056 R)
• M4: 1,803,851 km (0.1 R)
• M5: 2,330,884 km (0.091 R)
• M6: 2,941,842 km (0.053 R)
• M7: 3,427,586 km (0.09 R)
• M8: 4,341,480 km (0.046 R)
• M9: 4,895,590 km (0.118 R)
• M10: 5,553,522 km (0.091 R)
• M11: 7,114,725 km (0.101 R)
• M12: 7,924,050 km (0.107 R)
• M13: 9,151,201 km (0.111 R)
• M14: 13,752,682 km (0.038 R)
• M15: 14,453,548 km (0.07 R)
• M16: 15,810,101 km (0.092 R)
• M17: 16,399,667 km (0.071 R)
• M18: 17,874,702 km (0.097 R)
• M19: 19,303,062 km (0.111 R)
• M20: 22,312,522 km (0.097 R)
• M21: 22,905,080 km (0.104 R)
• M22: 26,683,623 km (0.097 R)
• M23: 27,859,611 km (0.053 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.1

Radius: 10.7

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.6 AU - 6.4 AU

Year: 8328 Days

Day: 7.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 68,510,145 km

• M1: 133,142 km (0.071 R)
• M2: 542,891 km (0.095 R)
• M3: 1,010,833 km (0.118 R)
• M4: 1,602,941 km (0.104 R)
• M5: 2,254,141 km (0.069 R)
• M6: 3,457,955 km (0.064 R)
• M7: 7,233,207 km (0.103 R)
• M8: 8,168,792 km (0.103 R)
• M9: 9,137,288 km (0.11 R)
• M10: 10,180,733 km (0.107 R)
• M11: 10,528,997 km (0.051 R)
• M12: 11,783,525 km (0.031 R)
• M13: 13,311,219 km (0.083 R)
• M14: 13,909,161 km (0.117 R)
• M15: 14,276,574 km (0.111 R)
• M16: 14,776,380 km (0.097 R)
• M17: 15,287,855 km (0.059 R)
• M18: 16,077,283 km (0.091 R)
• M19: 16,824,525 km (0.114 R)
• M20: 21,803,142 km (0.047 R)
• M21: 29,355,141 km (0.08 R)
• M22: 29,960,414 km (0.117 R)
• M23: 30,676,988 km (0.073 R)
• M24: 31,195,794 km (0.063 R)
• M25: 35,788,149 km (0.07 R)
• M26: 36,132,374 km (0.116 R)
• M27: 42,843,484 km (0.096 R)
• M28: 43,361,691 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 253.5

Radius: 3.8

Gravity: 17.56 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 7.37 AU - 8.23 AU

Year: 14066 Days

Day: 23.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 68,510,145 km

• M1: 47,273 km (0.053 R)
• M2: 181,612 km (0.096 R)
• M3: 419,024 km (0.12 R)
• M4: 545,434 km (0.095 R)
• M5: 1,035,816 km (0.084 R)
• M6: 1,177,784 km (0.079 R)
• M7: 1,474,586 km (0.112 R)
• M8: 1,850,376 km (0.106 R)
• M9: 2,268,801 km (0.109 R)
• M10: 3,109,392 km (0.086 R)
• M11: 3,799,038 km (0.118 R)
• M12: 4,442,458 km (0.088 R)
• M13: 4,585,175 km (0.049 R)
• M14: 5,062,392 km (0.072 R)
• M15: 5,344,982 km (0.113 R)
• M16: 8,642,568 km (0.066 R)
• M17: 8,910,199 km (0.053 R)
• M18: 9,322,042 km (0.12 R)
• M19: 10,134,358 km (0.086 R)
• M20: 11,254,248 km (0.049 R)
• M21: 12,968,490 km (0.099 R)
• M22: 13,857,251 km (0.047 R)
• M23: 15,040,420 km (0.077 R)
• M24: 19,595,526 km (0.114 R)
• M25: 19,902,650 km (0.113 R)
• M26: 24,367,399 km (0.04 R)
• M27: 26,084,483 km (0.103 R)
• M28: 27,591,682 km (0.104 R)
• M29: 27,880,705 km (0.107 R)
• M30: 29,858,688 km (0.113 R)
• M31: 30,469,795 km (0.101 R)
• M32: 33,432,431 km (0.088 R)
• M33: 34,870,964 km (0.045 R)
• M34: 36,234,848 km (0.097 R)
• M35: 36,697,405 km (0.034 R)
• M36: 42,174,183 km (0.086 R)
• M37: 42,943,266 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 689.8

Radius: 3.3

Gravity: 63.34 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.66 AU - 10.06 AU

Year: 17028 Days

Day: 17.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 87.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 68,510,145 km

• M1: 41,439 km (0.095 R)
• M2: 237,113 km (0.12 R)
• M3: 348,563 km (0.061 R)
• M4: 453,880 km (0.108 R)
• M5: 1,060,350 km (0.116 R)
• M6: 1,659,639 km (0.072 R)
• M7: 3,104,305 km (0.119 R)
• M8: 3,887,749 km (0.099 R)
• M9: 4,102,572 km (0.098 R)
• M10: 4,228,833 km (0.109 R)
• M11: 4,555,854 km (0.068 R)
• M12: 4,934,785 km (0.027 R)
• M13: 5,833,868 km (0.063 R)
• M14: 7,104,403 km (0.092 R)
• M15: 7,332,689 km (0.102 R)
• M16: 10,062,402 km (0.044 R)
• M17: 13,678,481 km (0.077 R)
• M18: 14,103,190 km (0.079 R)
• M19: 14,318,760 km (0.11 R)
• M20: 19,105,892 km (0.111 R)
• M21: 24,546,916 km (0.091 R)
• M22: 24,650,588 km (0.063 R)
• M23: 25,810,569 km (0.091 R)
• M24: 29,158,121 km (0.114 R)
• M25: 31,912,367 km (0.052 R)
• M26: 32,159,653 km (0.118 R)
• M27: 35,493,142 km (0.071 R)
• M28: 37,792,760 km (0.057 R)
• M29: 45,752,863 km (0.088 R)
• M30: 46,383,418 km (0.097 R)
• M31: 48,799,424 km (0.107 R)
• M32: 48,963,383 km (0.065 R)
• M33: 52,664,734 km (0.096 R)
• M34: 55,649,361 km (0.09 R)
• M35: 61,187,773 km (0.038 R)
• M36: 63,893,550 km (0.071 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 261 - 15,003 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit