🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.49 AU - 0.65 AU

Year: 282 Days

Day: 36.3 Hours

Environment

Temp: -120 °C

Axial Tilt: 16.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.3

Radius: 11.5

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.75 AU - 0.83 AU

Year: 461 Days

Day: 5.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,272,446 km

• M1: 148,102 km (0.101 R)
• M2: 557,402 km (0.102 R)
• M3: 916,437 km (0.034 R)
• M4: 1,297,462 km (0.095 R)
• M5: 1,794,576 km (0.104 R)
• M6: 2,302,461 km (0.087 R)
• M7: 2,763,821 km (0.115 R)
• M8: 3,496,102 km (0.06 R)
• M9: 4,165,852 km (0.06 R)
• M10: 4,653,391 km (0.095 R)
• M11: 5,031,724 km (0.082 R)
• M12: 5,832,671 km (0.078 R)
• M13: 6,697,048 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.1

Radius: 14.2

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.23 AU - 1.51 AU

Year: 1052 Days

Day: 13.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,272,446 km

• M1: 176,675 km (0.114 R)
• M2: 930,648 km (0.106 R)
• M3: 1,520,962 km (0.08 R)
• M4: 2,332,231 km (0.046 R)
• M5: 3,099,369 km (0.092 R)
• M6: 3,809,360 km (0.072 R)
• M7: 4,453,828 km (0.059 R)
• M8: 4,938,525 km (0.112 R)
• M9: 5,893,707 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.1

Radius: 9.8

Gravity: 10.12 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.19 AU - 2.82 AU

Year: 2593 Days

Day: 12 Hours

Environment

Temp: -197 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,272,446 km

• M1: 121,922 km (0.115 R)
• M2: 483,052 km (0.086 R)
• M3: 1,454,091 km (0.092 R)
• M4: 1,977,385 km (0.092 R)
• M5: 2,426,926 km (0.068 R)
• M6: 2,861,059 km (0.099 R)
• M7: 3,628,496 km (0.073 R)
• M8: 4,071,456 km (0.094 R)
• M9: 4,897,685 km (0.072 R)
• M10: 5,725,559 km (0.066 R)
• M11: 7,497,396 km (0.106 R)
• M12: 8,083,671 km (0.11 R)
• M13: 11,190,818 km (0.118 R)
• M14: 11,740,590 km (0.084 R)
• M15: 13,404,568 km (0.107 R)
• M16: 14,268,346 km (0.093 R)
• M17: 15,067,049 km (0.119 R)
• M18: 15,685,486 km (0.105 R)
• M19: 16,536,100 km (0.103 R)
• M20: 17,529,579 km (0.074 R)
• M21: 18,213,541 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.6

Radius: 8.3

Gravity: 13.36 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 2.28 AU - 3.66 AU

Year: 3358 Days

Day: 8.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 50,272,446 km

• M1: 103,522 km (0.089 R)
• M2: 661,971 km (0.12 R)
• M3: 1,121,236 km (0.054 R)
• M4: 1,499,719 km (0.115 R)
• M5: 1,883,138 km (0.078 R)
• M6: 2,437,847 km (0.095 R)
• M7: 3,892,237 km (0.06 R)
• M8: 4,620,779 km (0.115 R)
• M9: 5,464,212 km (0.091 R)
• M10: 6,774,988 km (0.118 R)
• M11: 7,255,198 km (0.11 R)
• M12: 8,391,543 km (0.08 R)
• M13: 9,406,116 km (0.073 R)
• M14: 11,100,012 km (0.102 R)
• M15: 12,134,482 km (0.117 R)
• M16: 12,842,977 km (0.065 R)
• M17: 13,479,067 km (0.041 R)
• M18: 13,982,464 km (0.083 R)
• M19: 14,813,929 km (0.095 R)
• M20: 15,954,763 km (0.097 R)
• M21: 16,978,311 km (0.091 R)
• M22: 17,329,118 km (0.089 R)
• M23: 19,536,136 km (0.078 R)
• M24: 23,259,627 km (0.116 R)
• M25: 23,619,858 km (0.093 R)
• M26: 25,477,565 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.8

Radius: 8

Gravity: 15.4 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.1 AU - 5.08 AU

Year: 5426 Days

Day: 14.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 50,272,446 km

• M1: 99,483 km (0.077 R)
• M2: 373,995 km (0.053 R)
• M3: 798,404 km (0.117 R)
• M4: 1,108,221 km (0.114 R)
• M5: 1,437,187 km (0.109 R)
• M6: 1,774,530 km (0.109 R)
• M7: 2,085,095 km (0.113 R)
• M8: 2,592,082 km (0.11 R)
• M9: 4,119,925 km (0.106 R)
• M10: 4,750,780 km (0.098 R)
• M11: 5,294,717 km (0.054 R)
• M12: 6,404,584 km (0.118 R)
• M13: 8,329,161 km (0.073 R)
• M14: 8,656,182 km (0.118 R)
• M15: 9,913,851 km (0.116 R)
• M16: 11,538,484 km (0.115 R)
• M17: 12,949,491 km (0.079 R)
• M18: 14,766,357 km (0.052 R)
• M19: 17,006,436 km (0.112 R)
• M20: 17,400,626 km (0.044 R)
• M21: 18,344,140 km (0.091 R)
• M22: 22,070,473 km (0.083 R)
• M23: 25,239,554 km (0.074 R)
• M24: 25,580,787 km (0.096 R)
• M25: 27,423,234 km (0.104 R)
• M26: 28,422,698 km (0.063 R)
• M27: 32,463,187 km (0.033 R)
• M28: 34,410,652 km (0.041 R)
• M29: 35,679,990 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.6

Radius: 12.7

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 4.53 AU - 5.63 AU

Year: 7511 Days

Day: 5.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,272,446 km

• M1: 157,975 km (0.103 R)
• M2: 632,350 km (0.104 R)
• M3: 1,095,505 km (0.108 R)
• M4: 1,607,280 km (0.092 R)
• M5: 2,529,550 km (0.109 R)
• M6: 2,943,189 km (0.071 R)
• M7: 3,503,732 km (0.081 R)
• M8: 3,931,282 km (0.108 R)
• M9: 8,572,706 km (0.118 R)
• M10: 9,435,886 km (0.085 R)
• M11: 11,612,684 km (0.067 R)
• M12: 16,283,728 km (0.105 R)
• M13: 17,979,869 km (0.114 R)
• M14: 19,065,501 km (0.08 R)
• M15: 20,809,812 km (0.112 R)
• M16: 24,846,262 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 717.2

Radius: 3

Gravity: 79.69 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 5.68 AU - 7.02 AU

Year: 10497 Days

Day: 21.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,272,446 km

• M1: 39,793 km (0.091 R)
• M2: 284,086 km (0.088 R)
• M3: 749,336 km (0.103 R)
• M4: 1,777,821 km (0.075 R)
• M5: 2,971,612 km (0.105 R)
• M6: 4,800,596 km (0.116 R)
• M7: 5,839,553 km (0.067 R)
• M8: 9,438,728 km (0.117 R)
• M9: 14,025,100 km (0.078 R)
• M10: 14,218,679 km (0.086 R)
• M11: 15,350,088 km (0.12 R)
• M12: 16,396,974 km (0.11 R)
• M13: 19,180,841 km (0.098 R)
• M14: 19,579,669 km (0.026 R)
• M15: 20,976,913 km (0.113 R)
• M16: 21,656,985 km (0.094 R)
• M17: 27,634,167 km (0.112 R)
• M18: 40,705,581 km (0.096 R)
• M19: 40,967,975 km (0.108 R)
• M20: 41,628,749 km (0.107 R)
• M21: 41,895,183 km (0.046 R)
• M22: 42,028,774 km (0.117 R)
• M23: 42,296,704 km (0.101 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 329 - 12,248 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit