🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.6

Radius: 12.9

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.88 AU - 1.08 AU

Year: 636 Days

Day: 13.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,573,653 km

• M1: 160,369 km (0.11 R)
• M2: 581,188 km (0.091 R)
• M3: 1,192,744 km (0.045 R)
• M4: 1,701,377 km (0.049 R)
• M5: 2,798,079 km (0.093 R)
• M6: 3,227,724 km (0.075 R)
• M7: 3,869,798 km (0.09 R)
• M8: 5,198,376 km (0.1 R)
• M9: 5,766,400 km (0.093 R)
• M10: 6,228,358 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.6

Radius: 11

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.36 AU - 1.84 AU

Year: 1328 Days

Day: 12.7 Hours

Environment

Temp: -180 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,573,653 km

• M1: 136,732 km (0.107 R)
• M2: 562,338 km (0.102 R)
• M3: 1,064,389 km (0.082 R)
• M4: 1,474,287 km (0.116 R)
• M5: 1,979,479 km (0.105 R)
• M6: 2,511,150 km (0.065 R)
• M7: 4,048,268 km (0.078 R)
• M8: 4,735,969 km (0.057 R)
• M9: 5,735,882 km (0.106 R)
• M10: 6,676,104 km (0.111 R)
• M11: 7,349,594 km (0.05 R)
• M12: 7,850,148 km (0.086 R)
• M13: 8,429,840 km (0.045 R)
• M14: 10,936,951 km (0.112 R)
• M15: 11,450,670 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.9

Radius: 9.1

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.9 AU - 3.04 AU

Year: 2547 Days

Day: 11.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,573,653 km

• M1: 114,293 km (0.044 R)
• M2: 437,873 km (0.084 R)
• M3: 756,068 km (0.098 R)
• M4: 1,122,882 km (0.079 R)
• M5: 1,513,930 km (0.108 R)
• M6: 1,808,189 km (0.065 R)
• M7: 2,249,802 km (0.114 R)
• M8: 2,587,146 km (0.106 R)
• M9: 3,025,767 km (0.057 R)
• M10: 4,238,706 km (0.081 R)
• M11: 4,738,363 km (0.071 R)
• M12: 5,499,068 km (0.096 R)
• M13: 6,204,422 km (0.077 R)
• M14: 6,637,209 km (0.109 R)
• M15: 7,114,426 km (0.08 R)
• M16: 7,951,725 km (0.078 R)
• M17: 8,435,226 km (0.116 R)
• M18: 9,052,915 km (0.119 R)
• M19: 9,851,618 km (0.064 R)
• M20: 10,283,956 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.5

Radius: 13.7

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.05 AU - 3.19 AU

Year: 2782 Days

Day: 10 Hours

Environment

Temp: -191 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,573,653 km

• M1: 170,392 km (0.114 R)
• M2: 816,804 km (0.093 R)
• M3: 1,309,281 km (0.107 R)
• M4: 1,991,447 km (0.091 R)
• M5: 2,789,103 km (0.107 R)
• M6: 3,751,765 km (0.078 R)
• M7: 4,487,039 km (0.111 R)
• M8: 5,571,623 km (0.119 R)
• M9: 7,065,507 km (0.061 R)
• M10: 7,823,969 km (0.08 R)
• M11: 9,653,999 km (0.071 R)
• M12: 10,231,298 km (0.063 R)
• M13: 12,235,311 km (0.114 R)
• M14: 12,729,133 km (0.082 R)
• M15: 14,242,316 km (0.101 R)
• M16: 16,031,207 km (0.09 R)
• M17: 17,062,984 km (0.089 R)
• M18: 17,510,431 km (0.084 R)
• M19: 19,138,654 km (0.108 R)
• M20: 19,989,716 km (0.083 R)
• M21: 20,675,922 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827.7

Radius: 10.9

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.86 AU - 3.54 AU

Year: 3755 Days

Day: 11.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 32,573,653 km

• M1: 135,536 km (0.104 R)
• M2: 519,553 km (0.101 R)
• M3: 893,099 km (0.085 R)
• M4: 1,865,934 km (0.079 R)
• M5: 2,372,323 km (0.051 R)
• M6: 2,986,871 km (0.105 R)
• M7: 4,298,545 km (0.107 R)
• M8: 5,109,366 km (0.057 R)
• M9: 5,565,340 km (0.103 R)
• M10: 6,077,713 km (0.076 R)
• M11: 6,621,202 km (0.106 R)
• M12: 7,429,629 km (0.08 R)
• M13: 8,087,111 km (0.101 R)
• M14: 8,934,434 km (0.106 R)
• M15: 9,360,189 km (0.085 R)
• M16: 13,419,677 km (0.065 R)
• M17: 14,819,614 km (0.087 R)
• M18: 15,749,664 km (0.117 R)
• M19: 19,089,436 km (0.076 R)
• M20: 21,954,684 km (0.087 R)
• M21: 22,802,904 km (0.083 R)
• M22: 26,415,244 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.4

Radius: 8.6

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 3.62 AU - 5.5 AU

Year: 6388 Days

Day: 12.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 32,573,653 km

• M1: 106,962 km (0.118 R)
• M2: 455,226 km (0.12 R)
• M3: 830,119 km (0.054 R)
• M4: 1,193,342 km (0.106 R)
• M5: 1,463,067 km (0.071 R)
• M6: 1,773,932 km (0.053 R)
• M7: 2,085,694 km (0.077 R)
• M8: 2,564,407 km (0.1 R)
• M9: 3,002,280 km (0.086 R)
• M10: 3,938,314 km (0.052 R)
• M11: 4,305,876 km (0.102 R)
• M12: 4,772,022 km (0.099 R)
• M13: 6,282,363 km (0.072 R)
• M14: 6,850,086 km (0.111 R)
• M15: 7,871,990 km (0.105 R)
• M16: 10,866,490 km (0.098 R)
• M17: 12,156,323 km (0.114 R)
• M18: 12,937,673 km (0.083 R)
• M19: 13,289,976 km (0.081 R)
• M20: 13,752,083 km (0.03 R)
• M21: 18,407,270 km (0.044 R)
• M22: 19,899,210 km (0.091 R)
• M23: 21,751,381 km (0.047 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.8

Radius: 13.8

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 3.89 AU - 5.81 AU

Year: 7007 Days

Day: 11.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,573,653 km

• M1: 180,265 km (0.1 R)
• M2: 769,232 km (0.074 R)
• M3: 1,218,325 km (0.047 R)
• M4: 1,650,813 km (0.058 R)
• M5: 2,157,500 km (0.061 R)
• M6: 2,658,803 km (0.054 R)
• M7: 3,115,675 km (0.107 R)
• M8: 3,670,384 km (0.094 R)
• M9: 4,814,957 km (0.088 R)
• M10: 5,773,879 km (0.061 R)
• M11: 6,250,049 km (0.063 R)
• M12: 6,891,226 km (0.052 R)
• M13: 9,465,955 km (0.116 R)
• M14: 10,684,729 km (0.053 R)
• M15: 12,261,640 km (0.118 R)
• M16: 15,689,825 km (0.107 R)
• M17: 16,182,450 km (0.071 R)
• M18: 17,988,546 km (0.108 R)
• M19: 19,499,185 km (0.067 R)
• M20: 21,769,333 km (0.082 R)
• M21: 23,483,874 km (0.118 R)
• M22: 29,538,399 km (0.095 R)
• M23: 31,345,541 km (0.066 R)
• M24: 33,834,401 km (0.101 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.3

Radius: 11.7

Gravity: 6.39 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.65 AU - 6.71 AU

Year: 8880 Days

Day: 13.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 32,573,653 km

• M1: 145,708 km (0.073 R)
• M2: 676,631 km (0.049 R)
• M3: 1,119,890 km (0.033 R)
• M4: 1,600,099 km (0.033 R)
• M5: 2,163,933 km (0.081 R)
• M6: 2,650,874 km (0.091 R)
• M7: 3,719,153 km (0.113 R)
• M8: 5,508,493 km (0.081 R)
• M9: 6,573,480 km (0.107 R)
• M10: 7,940,954 km (0.107 R)
• M11: 8,421,612 km (0.084 R)
• M12: 9,345,529 km (0.096 R)
• M13: 9,981,469 km (0.065 R)
• M14: 10,438,491 km (0.086 R)
• M15: 10,856,467 km (0.108 R)
• M16: 13,480,713 km (0.095 R)
• M17: 13,851,716 km (0.038 R)
• M18: 16,015,499 km (0.048 R)
• M19: 17,359,038 km (0.037 R)
• M20: 19,631,130 km (0.091 R)
• M21: 22,095,007 km (0.088 R)
• M22: 22,872,617 km (0.115 R)
• M23: 25,221,902 km (0.032 R)
• M24: 30,713,640 km (0.095 R)
• M25: 32,560,425 km (0.119 R)
• M26: 35,291,783 km (0.117 R)
• M27: 36,354,377 km (0.06 R)
• M28: 39,670,214 km (0.086 R)
• M29: 40,818,976 km (0.074 R)
• M30: 44,261,821 km (0.102 R)
• M31: 45,358,972 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117

Radius: 7.6

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 6.26 AU - 8.8 AU

Year: 13555 Days

Day: 20.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,573,653 km

• M1: 94,546 km (0.074 R)
• M2: 526,884 km (0.112 R)
• M3: 886,667 km (0.113 R)
• M4: 1,209,499 km (0.108 R)
• M5: 1,739,674 km (0.115 R)
• M6: 2,284,210 km (0.096 R)
• M7: 3,194,513 km (0.066 R)
• M8: 3,845,862 km (0.084 R)
• M9: 4,178,867 km (0.09 R)
• M10: 5,767,896 km (0.062 R)
• M11: 18,935,500 km (0.108 R)
• M12: 19,621,406 km (0.048 R)
• M13: 20,609,201 km (0.114 R)
• M14: 21,115,440 km (0.094 R)
• M15: 21,556,006 km (0.104 R)
• M16: 25,468,140 km (0.076 R)
• M17: 27,243,717 km (0.113 R)
• M18: 27,941,292 km (0.118 R)
• M19: 30,570,175 km (0.063 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 231 - 15,288 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit