🌌 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: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.9

Radius: 12.9

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.95 AU - 0.99 AU

Year: 627 Days

Day: 13.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,429,390 km

• M1: 160,369 km (0.117 R)
• M2: 802,742 km (0.096 R)
• M3: 1,448,855 km (0.082 R)
• M4: 2,125,636 km (0.101 R)
• M5: 2,654,315 km (0.113 R)
• M6: 4,100,478 km (0.118 R)
• M7: 4,508,730 km (0.067 R)
• M8: 5,708,056 km (0.042 R)
• M9: 7,311,147 km (0.044 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 359

Radius: 12.2

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.02 AU - 1.34 AU

Year: 841 Days

Day: 5.1 Hours

Environment

Temp: -173 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,429,390 km

• M1: 151,692 km (0.114 R)
• M2: 596,148 km (0.087 R)
• M3: 1,011,730 km (0.089 R)
• M4: 1,705,416 km (0.042 R)
• M5: 2,174,854 km (0.119 R)
• M6: 3,204,686 km (0.038 R)
• M7: 3,612,938 km (0.108 R)
• M8: 4,187,244 km (0.069 R)
• M9: 4,821,689 km (0.116 R)
• M10: 5,291,127 km (0.118 R)
• M11: 6,244,514 km (0.112 R)
• M12: 6,660,696 km (0.106 R)
• M13: 7,223,034 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.3

Radius: 13.1

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.13 AU - 1.47 AU

Year: 972 Days

Day: 7.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,429,390 km

• M1: 163,062 km (0.08 R)
• M2: 598,092 km (0.119 R)
• M3: 1,156,541 km (0.075 R)
• M4: 1,610,421 km (0.064 R)
• M5: 2,049,491 km (0.113 R)
• M6: 2,463,428 km (0.062 R)
• M7: 3,026,814 km (0.069 R)
• M8: 3,553,697 km (0.078 R)
• M9: 4,539,099 km (0.111 R)
• M10: 5,740,818 km (0.111 R)
• M11: 6,645,437 km (0.108 R)
• M12: 7,242,332 km (0.057 R)
• M13: 7,900,862 km (0.116 R)
• M14: 10,242,817 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285

Radius: 13.2

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.37 AU - 1.51 AU

Year: 1134 Days

Day: 6.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,429,390 km

• M1: 164,109 km (0.073 R)
• M2: 580,440 km (0.086 R)
• M3: 1,154,746 km (0.095 R)
• M4: 1,939,088 km (0.117 R)
• M5: 2,946,629 km (0.05 R)
• M6: 3,644,653 km (0.062 R)
• M7: 4,108,855 km (0.028 R)
• M8: 4,778,306 km (0.045 R)
• M9: 5,264,199 km (0.08 R)
• M10: 5,860,048 km (0.082 R)
• M11: 6,438,543 km (0.075 R)
• M12: 7,076,877 km (0.116 R)
• M13: 8,041,185 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361.3

Radius: 12.9

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.63 AU - 2.53 AU

Year: 1968 Days

Day: 5.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,429,390 km

• M1: 160,369 km (0.105 R)
• M2: 584,479 km (0.1 R)
• M3: 1,233,135 km (0.115 R)
• M4: 1,817,315 km (0.068 R)
• M5: 2,659,551 km (0.108 R)
• M6: 3,069,300 km (0.102 R)
• M7: 3,601,120 km (0.055 R)
• M8: 4,393,689 km (0.102 R)
• M9: 6,565,701 km (0.116 R)
• M10: 7,166,636 km (0.091 R)
• M11: 7,941,553 km (0.092 R)
• M12: 9,253,675 km (0.081 R)
• M13: 11,503,927 km (0.102 R)
• M14: 12,986,591 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.7

Radius: 14.2

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 2.22 AU - 3.44 AU

Year: 3123 Days

Day: 11.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,429,390 km

• M1: 176,675 km (0.086 R)
• M2: 854,054 km (0.042 R)
• M3: 1,297,462 km (0.033 R)
• M4: 2,017,178 km (0.076 R)
• M5: 2,501,276 km (0.071 R)
• M6: 3,244,778 km (0.102 R)
• M7: 4,132,043 km (0.084 R)
• M8: 4,633,495 km (0.118 R)
• M9: 6,658,452 km (0.06 R)
• M10: 7,286,314 km (0.034 R)
• M11: 8,480,404 km (0.07 R)
• M12: 8,955,826 km (0.075 R)
• M13: 11,081,911 km (0.06 R)
• M14: 12,848,363 km (0.113 R)
• M15: 14,743,768 km (0.081 R)
• M16: 15,272,147 km (0.059 R)
• M17: 15,758,490 km (0.117 R)
• M18: 16,991,027 km (0.096 R)
• M19: 18,529,491 km (0.063 R)
• M20: 20,352,940 km (0.11 R)
• M21: 22,501,016 km (0.116 R)
• M22: 24,501,139 km (0.056 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 703

Radius: 5.4

Gravity: 24.11 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 8.76 AU - 9.68 AU

Year: 18366 Days

Day: 24.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 35,429,390 km

• M1: 67,319 km (0.104 R)
• M2: 253,419 km (0.076 R)
• M3: 435,779 km (0.045 R)
• M4: 646,712 km (0.042 R)
• M5: 1,240,316 km (0.083 R)
• M6: 1,726,509 km (0.094 R)
• M7: 2,485,718 km (0.12 R)
• M8: 2,815,133 km (0.036 R)
• M9: 4,430,790 km (0.065 R)
• M10: 4,668,800 km (0.093 R)
• M11: 5,511,335 km (0.076 R)
• M12: 6,493,894 km (0.078 R)
• M13: 6,756,887 km (0.103 R)
• M14: 7,257,292 km (0.099 R)
• M15: 7,540,331 km (0.087 R)
• M16: 8,179,264 km (0.088 R)
• M17: 8,642,119 km (0.054 R)
• M18: 12,185,495 km (0.081 R)
• M19: 13,202,461 km (0.113 R)
• M20: 15,020,973 km (0.099 R)
• M21: 15,326,601 km (0.113 R)
• M22: 20,424,148 km (0.113 R)
• M23: 23,453,505 km (0.089 R)
• M24: 23,968,571 km (0.095 R)
• M25: 24,808,413 km (0.1 R)
• M26: 28,597,129 km (0.105 R)
• M27: 32,499,240 km (0.095 R)
• M28: 32,754,155 km (0.114 R)
• M29: 36,741,686 km (0.076 R)
• M30: 47,770,340 km (0.103 R)
• M31: 55,561,996 km (0.091 R)
• M32: 57,030,448 km (0.074 R)
• M33: 57,774,249 km (0.05 R)
• M34: 61,590,491 km (0.105 R)
• M35: 72,075,207 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 72.2

Radius: 5.5

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 7.78 AU - 11.46 AU

Year: 19574 Days

Day: 15.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,429,390 km

• M1: 68,366 km (0.061 R)
• M2: 242,199 km (0.113 R)
• M3: 424,708 km (0.118 R)
• M4: 828,174 km (0.12 R)
• M5: 1,859,502 km (0.101 R)
• M6: 2,264,313 km (0.12 R)
• M7: 2,523,417 km (0.084 R)
• M8: 3,786,771 km (0.102 R)
• M9: 4,254,115 km (0.091 R)
• M10: 4,786,683 km (0.047 R)
• M11: 6,311,684 km (0.115 R)
• M12: 8,826,424 km (0.11 R)
• M13: 9,914,449 km (0.071 R)
• M14: 10,943,533 km (0.091 R)
• M15: 11,138,010 km (0.072 R)
• M16: 11,384,398 km (0.1 R)
• M17: 16,149,090 km (0.101 R)
• M18: 21,479,262 km (0.104 R)
• M19: 29,815,155 km (0.109 R)
• M20: 30,577,954 km (0.101 R)
• M21: 30,964,066 km (0.098 R)
• M22: 34,901,632 km (0.104 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 358 - 13,105 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit