🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.4

Radius: 9.9

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.64 AU - 0.8 AU

Year: 422 Days

Day: 5.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,757,344 km

• M1: 123,119 km (0.113 R)
• M2: 575,204 km (0.103 R)
• M3: 1,087,726 km (0.049 R)
• M4: 1,444,816 km (0.044 R)
• M5: 1,865,485 km (0.099 R)
• M6: 2,286,304 km (0.056 R)
• M7: 2,882,901 km (0.12 R)
• M8: 3,401,856 km (0.103 R)
• M9: 3,764,930 km (0.07 R)
• M10: 4,512,620 km (0.078 R)
• M11: 4,952,288 km (0.096 R)
• M12: 5,517,319 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.6

Radius: 11.1

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.82 AU - 0.96 AU

Year: 580 Days

Day: 9.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,757,344 km

• M1: 140,024 km (0.061 R)
• M2: 494,571 km (0.115 R)
• M3: 1,175,690 km (0.099 R)
• M4: 1,563,747 km (0.061 R)
• M5: 2,182,035 km (0.103 R)
• M6: 3,280,681 km (0.096 R)
• M7: 3,715,263 km (0.075 R)
• M8: 4,079,684 km (0.091 R)
• M9: 5,081,391 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.7

Radius: 12.6

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.94 AU - 0.98 AU

Year: 649 Days

Day: 7.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,757,344 km

• M1: 156,779 km (0.112 R)
• M2: 586,723 km (0.082 R)
• M3: 1,205,160 km (0.093 R)
• M4: 1,649,466 km (0.054 R)
• M5: 2,060,860 km (0.05 R)
• M6: 3,141,406 km (0.1 R)
• M7: 3,821,328 km (0.092 R)
• M8: 4,231,077 km (0.082 R)
• M9: 4,969,791 km (0.045 R)
• M10: 5,508,792 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.9

Radius: 12.7

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.09 AU - 1.17 AU

Year: 829 Days

Day: 15 Hours

Environment

Temp: -184 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,757,344 km

• M1: 157,975 km (0.093 R)
• M2: 600,785 km (0.078 R)
• M3: 1,068,877 km (0.115 R)
• M4: 1,827,637 km (0.064 R)
• M5: 2,304,256 km (0.089 R)
• M6: 3,026,664 km (0.09 R)
• M7: 4,304,529 km (0.038 R)
• M8: 5,057,306 km (0.082 R)
• M9: 5,528,240 km (0.086 R)
• M10: 6,009,496 km (0.118 R)
• M11: 7,623,807 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.3

Radius: 8.6

Gravity: 7.43 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.23 AU - 1.51 AU

Year: 1107 Days

Day: 9.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,757,344 km

• M1: 107,112 km (0.083 R)
• M2: 406,607 km (0.037 R)
• M3: 718,967 km (0.032 R)
• M4: 996,172 km (0.065 R)
• M5: 1,535,323 km (0.108 R)
• M6: 1,891,067 km (0.107 R)
• M7: 2,236,189 km (0.088 R)
• M8: 2,528,204 km (0.119 R)
• M9: 3,054,340 km (0.107 R)
• M10: 3,386,597 km (0.064 R)
• M11: 3,930,534 km (0.038 R)
• M12: 4,223,597 km (0.036 R)
• M13: 5,002,553 km (0.107 R)
• M14: 6,106,735 km (0.088 R)
• M15: 6,523,664 km (0.073 R)
• M16: 6,796,680 km (0.067 R)
• M17: 7,863,911 km (0.104 R)
• M18: 9,094,952 km (0.076 R)
• M19: 9,465,207 km (0.094 R)
• M20: 10,084,243 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977

Radius: 11

Gravity: 8.07 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.29 AU - 1.65 AU

Year: 1230 Days

Day: 7.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,757,344 km

• M1: 136,732 km (0.11 R)
• M2: 553,662 km (0.111 R)
• M3: 957,127 km (0.106 R)
• M4: 2,114,566 km (0.089 R)
• M5: 2,519,228 km (0.104 R)
• M6: 2,961,589 km (0.112 R)
• M7: 3,361,763 km (0.113 R)
• M8: 4,145,357 km (0.072 R)
• M9: 4,495,117 km (0.101 R)
• M10: 4,844,727 km (0.114 R)
• M11: 5,339,148 km (0.101 R)
• M12: 6,774,091 km (0.028 R)
• M13: 7,635,326 km (0.033 R)
• M14: 8,277,699 km (0.105 R)
• M15: 8,686,101 km (0.078 R)
• M16: 10,025,601 km (0.067 R)
• M17: 10,625,338 km (0.088 R)
• M18: 11,003,671 km (0.084 R)
• M19: 13,031,770 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.5

Radius: 13.8

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.34 AU - 1.76 AU

Year: 1332 Days

Day: 6.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 55,757,344 km

• M1: 171,738 km (0.038 R)
• M2: 675,135 km (0.096 R)
• M3: 1,523,056 km (0.091 R)
• M4: 2,056,971 km (0.119 R)
• M5: 2,649,229 km (0.095 R)
• M6: 4,653,840 km (0.097 R)
• M7: 5,572,820 km (0.105 R)
• M8: 6,387,530 km (0.116 R)
• M9: 7,280,330 km (0.093 R)
• M10: 8,081,726 km (0.119 R)
• M11: 9,860,893 km (0.084 R)
• M12: 10,326,891 km (0.11 R)
• M13: 11,593,536 km (0.107 R)
• M14: 12,493,816 km (0.076 R)
• M15: 13,079,940 km (0.118 R)
• M16: 13,643,326 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.9

Radius: 14.6

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 4.56 AU - 4.96 AU

Year: 7168 Days

Day: 7.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 127.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,757,344 km

• M1: 181,612 km (0.115 R)
• M2: 718,219 km (0.106 R)
• M3: 1,370,316 km (0.072 R)
• M4: 2,059,364 km (0.055 R)
• M5: 2,934,362 km (0.058 R)
• M6: 3,831,501 km (0.115 R)
• M7: 5,217,226 km (0.092 R)
• M8: 5,977,482 km (0.104 R)
• M9: 10,465,269 km (0.118 R)
• M10: 11,279,380 km (0.102 R)
• M11: 12,447,590 km (0.047 R)
• M12: 13,976,779 km (0.118 R)
• M13: 14,552,282 km (0.102 R)
• M14: 17,209,739 km (0.069 R)
• M15: 20,103,411 km (0.061 R)
• M16: 22,126,572 km (0.119 R)
• M17: 22,751,293 km (0.113 R)
• M18: 27,370,127 km (0.118 R)
• M19: 33,083,719 km (0.082 R)
• M20: 34,418,730 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 388.7

Radius: 7.5

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 8.22 AU - 8.48 AU

Year: 16655 Days

Day: 24.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,757,344 km

• M1: 93,947 km (0.074 R)
• M2: 753,076 km (0.107 R)
• M3: 1,611,319 km (0.085 R)
• M4: 2,167,224 km (0.083 R)
• M5: 4,426,900 km (0.076 R)
• M6: 6,326,494 km (0.076 R)
• M7: 6,562,260 km (0.068 R)
• M8: 7,830,102 km (0.118 R)
• M9: 8,956,125 km (0.09 R)
• M10: 12,542,435 km (0.113 R)
• M11: 13,618,044 km (0.094 R)
• M12: 17,060,889 km (0.097 R)
• M13: 21,130,550 km (0.115 R)
• M14: 24,240,241 km (0.069 R)
• M15: 31,921,194 km (0.074 R)
• M16: 33,917,278 km (0.083 R)
• M17: 40,537,283 km (0.087 R)
• M18: 42,875,348 km (0.092 R)
• M19: 43,156,143 km (0.084 R)
• M20: 47,667,716 km (0.062 R)
• M21: 52,805,206 km (0.052 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 189 - 18,061 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit