🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714.4

Radius: 9.5

Gravity: 7.92 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.49 AU - 0.69 AU

Year: 313 Days

Day: 6.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,612,599 km

• M1: 118,182 km (0.081 R)
• M2: 466,895 km (0.11 R)
• M3: 901,327 km (0.081 R)
• M4: 1,306,588 km (0.092 R)
• M5: 1,979,778 km (0.114 R)
• M6: 2,284,210 km (0.105 R)
• M7: 2,657,307 km (0.06 R)
• M8: 3,123,005 km (0.059 R)
• M9: 4,283,286 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.9

Radius: 11.1

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.75 AU - 0.95 AU

Year: 541 Days

Day: 6.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,612,599 km

• M1: 138,079 km (0.059 R)
• M2: 799,301 km (0.115 R)
• M3: 1,429,707 km (0.119 R)
• M4: 2,272,392 km (0.097 R)
• M5: 2,660,748 km (0.096 R)
• M6: 3,093,534 km (0.095 R)
• M7: 4,155,081 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.7

Radius: 11.6

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.3 AU - 1.92 AU

Year: 1410 Days

Day: 10.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,612,599 km

• M1: 144,212 km (0.118 R)
• M2: 573,109 km (0.081 R)
• M3: 936,632 km (0.099 R)
• M4: 1,621,491 km (0.078 R)
• M5: 2,533,590 km (0.092 R)
• M6: 3,529,163 km (0.106 R)
• M7: 4,100,178 km (0.11 R)
• M8: 4,787,581 km (0.072 R)
• M9: 5,169,055 km (0.102 R)
• M10: 7,071,940 km (0.104 R)
• M11: 8,167,894 km (0.119 R)
• M12: 8,548,172 km (0.105 R)
• M13: 9,054,561 km (0.103 R)
• M14: 9,912,505 km (0.067 R)
• M15: 10,377,006 km (0.076 R)
• M16: 11,051,842 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.4

Radius: 11.2

Gravity: 7.5 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.01 AU - 2.05 AU

Year: 1996 Days

Day: 5.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,612,599 km

• M1: 150,047 km (0.114 R)
• M2: 566,228 km (0.054 R)
• M3: 974,780 km (0.11 R)
• M4: 1,874,162 km (0.082 R)
• M5: 2,289,895 km (0.094 R)
• M6: 2,707,871 km (0.044 R)
• M7: 3,078,575 km (0.085 R)
• M8: 3,754,607 km (0.086 R)
• M9: 4,611,803 km (0.068 R)
• M10: 5,144,372 km (0.104 R)
• M11: 5,968,955 km (0.06 R)
• M12: 6,333,226 km (0.11 R)
• M13: 6,739,982 km (0.1 R)
• M14: 7,338,823 km (0.092 R)
• M15: 8,415,628 km (0.053 R)
• M16: 9,315,908 km (0.073 R)
• M17: 12,571,756 km (0.108 R)
• M18: 13,129,008 km (0.119 R)
• M19: 13,524,396 km (0.09 R)
• M20: 14,155,100 km (0.089 R)
• M21: 16,671,486 km (0.115 R)
• M22: 17,083,478 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.2

Radius: 14.6

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.98 AU - 2.32 AU

Year: 2176 Days

Day: 7.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,612,599 km

• M1: 184,454 km (0.068 R)
• M2: 930,499 km (0.096 R)
• M3: 1,715,738 km (0.064 R)
• M4: 2,206,120 km (0.064 R)
• M5: 2,804,810 km (0.102 R)
• M6: 3,495,205 km (0.096 R)
• M7: 4,603,725 km (0.079 R)
• M8: 8,396,480 km (0.114 R)
• M9: 9,286,886 km (0.049 R)
• M10: 10,239,376 km (0.09 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 756.8

Radius: 3

Gravity: 84.09 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 7.22 AU - 9.14 AU

Year: 16149 Days

Day: 24 Hours

Environment

Temp: -229 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 74,612,599 km

• M1: 37,250 km (0.08 R)
• M2: 180,265 km (0.115 R)
• M3: 301,141 km (0.096 R)
• M4: 409,001 km (0.106 R)
• M5: 558,449 km (0.053 R)
• M6: 763,099 km (0.112 R)
• M7: 1,077,105 km (0.086 R)
• M8: 1,470,547 km (0.061 R)
• M9: 1,648,868 km (0.064 R)
• M10: 1,751,941 km (0.113 R)
• M11: 1,859,502 km (0.106 R)
• M12: 2,009,698 km (0.116 R)
• M13: 2,188,318 km (0.06 R)
• M14: 4,874,497 km (0.075 R)
• M15: 5,160,379 km (0.112 R)
• M16: 6,501,075 km (0.08 R)
• M17: 6,629,430 km (0.046 R)
• M18: 6,980,087 km (0.115 R)
• M19: 7,959,504 km (0.072 R)
• M20: 8,558,494 km (0.084 R)
• M21: 9,622,434 km (0.078 R)
• M22: 11,255,594 km (0.09 R)
• M23: 11,944,792 km (0.097 R)
• M24: 12,862,126 km (0.075 R)
• M25: 13,615,052 km (0.11 R)
• M26: 15,358,615 km (0.058 R)
• M27: 17,082,730 km (0.077 R)
• M28: 20,174,918 km (0.087 R)
• M29: 24,642,509 km (0.082 R)
• M30: 27,326,445 km (0.111 R)
• M31: 28,566,611 km (0.116 R)
• M32: 30,198,724 km (0.098 R)
• M33: 33,013,109 km (0.102 R)
• M34: 47,288,934 km (0.065 R)
• M35: 52,946,726 km (0.116 R)
• M36: 58,299,337 km (0.114 R)
• M37: 59,598,146 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 774.4

Radius: 3.7

Gravity: 56.57 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 6.94 AU - 10.82 AU

Year: 18265 Days

Day: 22.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 74,612,599 km

• M1: 47,273 km (0.107 R)
• M2: 168,597 km (0.038 R)
• M3: 318,344 km (0.112 R)
• M4: 525,837 km (0.072 R)
• M5: 756,516 km (0.112 R)
• M6: 1,001,408 km (0.053 R)
• M7: 1,387,071 km (0.113 R)
• M8: 2,489,458 km (0.116 R)
• M9: 3,583,318 km (0.088 R)
• M10: 6,840,961 km (0.096 R)
• M11: 7,787,766 km (0.106 R)
• M12: 8,292,509 km (0.093 R)
• M13: 8,818,645 km (0.073 R)
• M14: 9,366,771 km (0.096 R)
• M15: 9,706,359 km (0.109 R)
• M16: 10,774,487 km (0.115 R)
• M17: 11,657,564 km (0.104 R)
• M18: 11,787,564 km (0.043 R)
• M19: 14,594,918 km (0.108 R)
• M20: 18,602,495 km (0.095 R)
• M21: 19,229,011 km (0.103 R)
• M22: 22,272,580 km (0.078 R)
• M23: 36,670,776 km (0.113 R)
• M24: 40,263,669 km (0.105 R)
• M25: 44,241,925 km (0.084 R)
• M26: 54,405,006 km (0.1 R)
• M27: 54,768,229 km (0.118 R)
• M28: 66,017,690 km (0.047 R)
• M29: 68,100,990 km (0.084 R)
• M30: 70,442,496 km (0.085 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: 364 - 20,112 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit