🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.4

Radius: 8.2

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.51 AU - 0.57 AU

Year: 265 Days

Day: 9.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 74,259,579 km

• M1: 102,026 km (0.113 R)
• M2: 376,987 km (0.068 R)
• M3: 707,299 km (0.033 R)
• M4: 1,155,045 km (0.054 R)
• M5: 1,469,949 km (0.092 R)
• M6: 1,989,502 km (0.03 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 443.7

Radius: 8.8

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.54 AU - 0.54 AU

Year: 265 Days

Day: 9.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,259,579 km

• M1: 109,506 km (0.108 R)
• M2: 420,071 km (0.115 R)
• M3: 764,296 km (0.1 R)
• M4: 1,437,636 km (0.077 R)
• M5: 1,734,438 km (0.061 R)
• M6: 2,212,253 km (0.076 R)
• M7: 2,552,888 km (0.102 R)
• M8: 2,937,653 km (0.086 R)
• M9: 3,241,337 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 68.5

Radius: 12.2

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.96 AU - 1.14 AU

Year: 717 Days

Day: 10.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,259,579 km

• M1: 155,432 km (0.119 R)
• M2: 673,490 km (0.045 R)
• M3: 1,174,493 km (0.103 R)
• M4: 1,563,597 km (0.084 R)
• M5: 2,346,592 km (0.087 R)
• M6: 2,761,726 km (0.081 R)
• M7: 3,406,044 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.3

Radius: 12.7

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.76 AU - 2.7 AU

Year: 2221 Days

Day: 12 Hours

Environment

Temp: -211 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,259,579 km

• M1: 157,975 km (0.102 R)
• M2: 557,850 km (0.104 R)
• M3: 1,099,694 km (0.11 R)
• M4: 1,649,317 km (0.077 R)
• M5: 2,554,084 km (0.056 R)
• M6: 2,992,107 km (0.077 R)
• M7: 3,693,272 km (0.118 R)
• M8: 4,209,086 km (0.072 R)
• M9: 5,200,770 km (0.044 R)
• M10: 6,363,295 km (0.03 R)
• M11: 8,207,388 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.4

Radius: 9.5

Gravity: 7.69 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2 AU - 2.92 AU

Year: 2573 Days

Day: 9.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,259,579 km

• M1: 118,332 km (0.103 R)
• M2: 706,102 km (0.112 R)
• M3: 1,006,494 km (0.109 R)
• M4: 1,385,276 km (0.058 R)
• M5: 2,077,316 km (0.106 R)
• M6: 2,423,934 km (0.073 R)
• M7: 3,200,796 km (0.101 R)
• M8: 4,054,102 km (0.095 R)
• M9: 4,426,751 km (0.064 R)
• M10: 5,533,775 km (0.108 R)
• M11: 6,152,212 km (0.084 R)
• M12: 6,617,611 km (0.038 R)
• M13: 7,743,036 km (0.09 R)
• M14: 8,450,335 km (0.112 R)
• M15: 10,180,285 km (0.082 R)
• M16: 11,799,382 km (0.042 R)
• M17: 14,231,993 km (0.115 R)
• M18: 15,842,115 km (0.105 R)
• M19: 16,250,069 km (0.117 R)
• M20: 17,140,326 km (0.079 R)
• M21: 18,846,938 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.7

Radius: 14.4

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 3.83 AU - 4.45 AU

Year: 5617 Days

Day: 9.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,259,579 km

• M1: 180,565 km (0.081 R)
• M2: 689,945 km (0.106 R)
• M3: 1,765,853 km (0.114 R)
• M4: 2,346,592 km (0.11 R)
• M5: 3,175,065 km (0.086 R)
• M6: 3,948,337 km (0.089 R)
• M7: 4,444,702 km (0.107 R)
• M8: 5,935,296 km (0.117 R)
• M9: 6,865,196 km (0.103 R)
• M10: 7,550,205 km (0.082 R)
• M11: 8,561,037 km (0.074 R)
• M12: 10,382,541 km (0.106 R)
• M13: 15,375,370 km (0.069 R)
• M14: 17,322,536 km (0.111 R)
• M15: 18,869,976 km (0.095 R)
• M16: 21,854,304 km (0.113 R)
• M17: 23,740,284 km (0.101 R)
• M18: 24,310,252 km (0.058 R)
• M19: 27,924,387 km (0.115 R)
• M20: 29,112,045 km (0.091 R)
• M21: 32,377,318 km (0.116 R)
• M22: 35,033,577 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 132.3

Radius: 3.5

Gravity: 10.8 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 6.68 AU - 6.86 AU

Year: 11747 Days

Day: 25 Hours

Environment

Temp: -219 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 74,259,579 km

• M1: 67,469 km (0.095 R)
• M2: 235,467 km (0.087 R)
• M3: 530,624 km (0.063 R)
• M4: 826,229 km (0.12 R)
• M5: 961,166 km (0.047 R)
• M6: 1,091,167 km (0.087 R)
• M7: 2,509,654 km (0.102 R)
• M8: 3,022,176 km (0.094 R)
• M9: 3,323,915 km (0.097 R)
• M10: 4,010,569 km (0.08 R)
• M11: 4,449,938 km (0.084 R)
• M12: 4,786,833 km (0.097 R)
• M13: 5,252,531 km (0.077 R)
• M14: 6,084,594 km (0.11 R)
• M15: 8,699,415 km (0.1 R)
• M16: 9,020,452 km (0.12 R)
• M17: 11,067,998 km (0.103 R)
• M18: 14,717,139 km (0.048 R)
• M19: 18,628,226 km (0.032 R)
• M20: 21,394,291 km (0.075 R)
• M21: 26,037,958 km (0.1 R)
• M22: 30,021,749 km (0.071 R)
• M23: 30,477,873 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.2

Radius: 7.4

Gravity: 9.3 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 10.06 AU - 10.74 AU

Year: 22366 Days

Day: 15 Hours

Environment

Temp: -238 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 74,259,579 km

• M1: 94,995 km (0.1 R)
• M2: 395,836 km (0.062 R)
• M3: 659,128 km (0.078 R)
• M4: 936,782 km (0.115 R)
• M5: 1,584,541 km (0.101 R)
• M6: 1,882,240 km (0.076 R)
• M7: 2,781,623 km (0.087 R)
• M8: 3,085,007 km (0.117 R)
• M9: 5,825,790 km (0.081 R)
• M10: 7,217,499 km (0.091 R)
• M11: 14,713,250 km (0.08 R)
• M12: 15,636,418 km (0.11 R)
• M13: 22,498,921 km (0.063 R)
• M14: 24,350,943 km (0.07 R)
• M15: 25,750,132 km (0.1 R)
• M16: 28,590,247 km (0.118 R)
• M17: 31,007,450 km (0.057 R)
• M18: 31,632,470 km (0.093 R)
• M19: 33,427,046 km (0.118 R)
• M20: 35,559,863 km (0.098 R)
• M21: 38,208,343 km (0.114 R)
• M22: 39,071,373 km (0.1 R)
• M23: 39,800,364 km (0.085 R)
• M24: 41,285,572 km (0.091 R)
• M25: 43,426,467 km (0.058 R)
• M26: 48,428,122 km (0.102 R)
• M27: 52,026,100 km (0.068 R)
• M28: 53,442,493 km (0.045 R)
• M29: 55,431,546 km (0.062 R)
• M30: 57,282,221 km (0.105 R)
• M31: 59,173,737 km (0.113 R)
• M32: 59,557,007 km (0.095 R)
• M33: 63,681,420 km (0.094 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 302 - 10,797 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit