🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.4

Radius: 14.8

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.55 AU - 0.61 AU

Year: 305 Days

Day: 10.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,792,993 km

• M1: 184,005 km (0.035 R)
• M2: 662,120 km (0.08 R)
• M3: 1,485,357 km (0.085 R)
• M4: 2,015,083 km (0.119 R)
• M5: 2,743,625 km (0.083 R)
• M6: 3,312,994 km (0.083 R)
• M7: 3,914,677 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.5

Radius: 9.3

Gravity: 9.87 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.65 AU - 0.75 AU

Year: 404 Days

Day: 5.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,792,993 km

• M1: 115,639 km (0.032 R)
• M2: 440,117 km (0.036 R)
• M3: 787,184 km (0.115 R)
• M4: 1,118,094 km (0.04 R)
• M5: 1,461,721 km (0.074 R)
• M6: 1,884,185 km (0.108 R)
• M7: 2,511,150 km (0.097 R)
• M8: 2,868,390 km (0.08 R)
• M9: 3,389,738 km (0.115 R)
• M10: 3,762,835 km (0.083 R)
• M11: 4,108,257 km (0.102 R)
• M12: 5,065,683 km (0.093 R)
• M13: 5,776,572 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.4

Radius: 13.3

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.93 AU - 1.21 AU

Year: 764 Days

Day: 9.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,792,993 km

• M1: 166,652 km (0.082 R)
• M2: 696,677 km (0.12 R)
• M3: 1,166,564 km (0.067 R)
• M4: 2,114,865 km (0.039 R)
• M5: 2,684,983 km (0.103 R)
• M6: 4,321,882 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.9

Radius: 9

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.09 AU - 2.97 AU

Year: 2778 Days

Day: 13.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,792,993 km

• M1: 311,164 km (0.08 R)
• M2: 1,151,156 km (0.119 R)
• M3: 1,631,514 km (0.058 R)
• M4: 2,018,823 km (0.118 R)
• M5: 2,952,314 km (0.118 R)
• M6: 3,315,538 km (0.117 R)
• M7: 4,027,474 km (0.066 R)
• M8: 4,512,620 km (0.091 R)
• M9: 7,104,253 km (0.074 R)
• M10: 9,935,692 km (0.1 R)
• M11: 11,940,154 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332

Radius: 12.6

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.48 AU - 4.08 AU

Year: 4100 Days

Day: 6.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 68,792,993 km

• M1: 156,629 km (0.071 R)
• M2: 675,434 km (0.086 R)
• M3: 1,071,570 km (0.054 R)
• M4: 1,516,623 km (0.101 R)
• M5: 2,257,282 km (0.098 R)
• M6: 2,924,788 km (0.12 R)
• M7: 3,798,140 km (0.077 R)
• M8: 4,285,680 km (0.091 R)
• M9: 6,005,607 km (0.107 R)
• M10: 7,414,220 km (0.095 R)
• M11: 8,514,064 km (0.093 R)
• M12: 9,353,906 km (0.12 R)
• M13: 10,597,962 km (0.089 R)
• M14: 12,077,634 km (0.084 R)
• M15: 12,688,891 km (0.098 R)
• M16: 14,307,540 km (0.104 R)
• M17: 14,745,114 km (0.028 R)
• M18: 16,007,870 km (0.115 R)
• M19: 18,346,683 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19

Radius: 12.5

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3.15 AU - 4.17 AU

Year: 4833 Days

Day: 9.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,792,993 km

• M1: 163,211 km (0.038 R)
• M2: 629,657 km (0.109 R)
• M3: 1,299,706 km (0.114 R)
• M4: 2,566,800 km (0.057 R)
• M5: 3,206,032 km (0.086 R)
• M6: 5,032,323 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 487.5

Radius: 5.1

Gravity: 18.74 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 5.78 AU - 7.38 AU

Year: 11651 Days

Day: 18.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,792,993 km

• M1: 63,429 km (0.101 R)
• M2: 546,930 km (0.048 R)
• M3: 1,643,333 km (0.118 R)
• M4: 1,890,618 km (0.076 R)
• M5: 2,721,933 km (0.074 R)
• M6: 3,069,300 km (0.102 R)
• M7: 4,579,789 km (0.114 R)
• M8: 5,907,770 km (0.111 R)
• M9: 6,526,955 km (0.085 R)
• M10: 7,473,311 km (0.095 R)
• M11: 7,936,317 km (0.093 R)
• M12: 9,344,033 km (0.096 R)
• M13: 11,178,252 km (0.052 R)
• M14: 12,702,206 km (0.116 R)
• M15: 14,616,610 km (0.065 R)
• M16: 18,776,029 km (0.048 R)
• M17: 24,200,597 km (0.105 R)
• M18: 24,382,359 km (0.071 R)
• M19: 27,316,571 km (0.083 R)
• M20: 27,910,475 km (0.12 R)
• M21: 29,639,826 km (0.073 R)
• M22: 31,982,080 km (0.091 R)
• M23: 34,330,318 km (0.118 R)
• M24: 35,254,384 km (0.034 R)
• M25: 41,538,093 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 515.1

Radius: 7

Gravity: 10.51 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 7.05 AU - 7.83 AU

Year: 14008 Days

Day: 22.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 68,792,993 km

• M1: 118,182 km (0.071 R)
• M2: 563,386 km (0.072 R)
• M3: 868,864 km (0.068 R)
• M4: 1,112,410 km (0.093 R)
• M5: 1,429,557 km (0.102 R)
• M6: 1,648,120 km (0.087 R)
• M7: 2,172,161 km (0.089 R)
• M8: 2,693,061 km (0.049 R)
• M9: 3,124,052 km (0.086 R)
• M10: 3,419,359 km (0.103 R)
• M11: 4,479,559 km (0.104 R)
• M12: 4,920,573 km (0.12 R)
• M13: 5,779,714 km (0.094 R)
• M14: 7,572,195 km (0.11 R)
• M15: 8,290,415 km (0.104 R)
• M16: 10,498,779 km (0.082 R)
• M17: 14,842,951 km (0.063 R)
• M18: 15,608,443 km (0.109 R)
• M19: 16,842,925 km (0.081 R)
• M20: 17,907,164 km (0.087 R)
• M21: 18,219,375 km (0.041 R)
• M22: 21,631,852 km (0.096 R)
• M23: 22,254,179 km (0.108 R)
• M24: 22,524,503 km (0.109 R)
• M25: 26,846,983 km (0.117 R)
• M26: 28,934,023 km (0.106 R)
• M27: 30,347,125 km (0.082 R)
• M28: 33,075,790 km (0.039 R)
• M29: 36,711,168 km (0.083 R)
• M30: 38,495,272 km (0.118 R)
• M31: 39,540,363 km (0.076 R)
• M32: 41,960,707 km (0.069 R)
• M33: 51,522,404 km (0.05 R)
• M34: 53,272,101 km (0.08 R)
• M35: 53,918,065 km (0.047 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 60

Radius: 5

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 7.37 AU - 9.09 AU

Year: 16297 Days

Day: 20 Hours

Environment

Temp: -240 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,792,993 km

• M1: 62,233 km (0.093 R)
• M2: 484,248 km (0.091 R)
• M3: 856,448 km (0.09 R)
• M4: 1,072,018 km (0.069 R)
• M5: 1,469,350 km (0.069 R)
• M6: 1,973,346 km (0.111 R)
• M7: 2,149,572 km (0.112 R)
• M8: 2,534,038 km (0.055 R)
• M9: 2,963,085 km (0.077 R)
• M10: 3,155,617 km (0.062 R)
• M11: 3,502,086 km (0.084 R)
• M12: 4,294,805 km (0.088 R)
• M13: 4,643,219 km (0.093 R)
• M14: 4,929,998 km (0.103 R)
• M15: 8,253,464 km (0.11 R)
• M16: 9,353,008 km (0.09 R)
• M17: 9,642,480 km (0.098 R)
• M18: 12,572,355 km (0.102 R)
• M19: 15,124,046 km (0.089 R)
• M20: 16,282,232 km (0.116 R)
• M21: 22,820,407 km (0.07 R)
• M22: 23,119,154 km (0.101 R)
• M23: 23,496,440 km (0.113 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 756.9

Radius: 6.8

Gravity: 16.37 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 7.98 AU - 8.52 AU

Year: 16357 Days

Day: 20.1 Hours

Environment

Temp: -243 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 68,792,993 km

• M1: 84,523 km (0.054 R)
• M2: 311,912 km (0.108 R)
• M3: 563,386 km (0.074 R)
• M4: 846,574 km (0.116 R)
• M5: 1,132,605 km (0.114 R)
• M6: 1,497,923 km (0.041 R)
• M7: 1,777,671 km (0.102 R)
• M8: 2,465,074 km (0.12 R)
• M9: 3,210,819 km (0.12 R)
• M10: 3,564,917 km (0.109 R)
• M11: 4,005,483 km (0.097 R)
• M12: 4,287,026 km (0.037 R)
• M13: 5,779,265 km (0.115 R)
• M14: 9,252,479 km (0.038 R)
• M15: 11,453,662 km (0.108 R)
• M16: 11,894,078 km (0.094 R)
• M17: 12,345,863 km (0.089 R)
• M18: 12,609,006 km (0.118 R)
• M19: 15,988,871 km (0.095 R)
• M20: 24,365,604 km (0.098 R)
• M21: 25,836,899 km (0.059 R)
• M22: 29,654,487 km (0.108 R)
• M23: 31,208,509 km (0.072 R)
• M24: 39,371,168 km (0.098 R)
• M25: 40,085,497 km (0.098 R)
• M26: 41,246,227 km (0.09 R)
• M27: 42,429,247 km (0.086 R)
• M28: 44,553,687 km (0.117 R)
• M29: 44,862,905 km (0.07 R)
• M30: 45,798,939 km (0.052 R)
• M31: 57,884,353 km (0.114 R)
• M32: 66,349,049 km (0.075 R)
• M33: 66,954,472 km (0.082 R)
• M34: 68,176,537 km (0.069 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 457 - 17,542 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit