🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.7

Radius: 12.5

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.72 AU - 0.88 AU

Year: 462 Days

Day: 11.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 70,146,413 km

• M1: 157,676 km (0.042 R)
• M2: 610,509 km (0.118 R)
• M3: 1,042,996 km (0.118 R)
• M4: 1,472,043 km (0.087 R)
• M5: 2,172,460 km (0.107 R)
• M6: 3,006,468 km (0.104 R)
• M7: 4,019,396 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.9

Radius: 11.5

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.84 AU - 1.3 AU

Year: 715 Days

Day: 10.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 70,146,413 km

• M1: 143,016 km (0.063 R)
• M2: 505,192 km (0.109 R)
• M3: 875,447 km (0.116 R)
• M4: 1,497,923 km (0.105 R)
• M5: 2,222,725 km (0.042 R)
• M6: 2,807,054 km (0.099 R)
• M7: 3,207,977 km (0.111 R)
• M8: 3,719,302 km (0.09 R)
• M9: 4,480,007 km (0.079 R)
• M10: 6,436,748 km (0.057 R)
• M11: 6,936,704 km (0.092 R)
• M12: 7,771,609 km (0.058 R)
• M13: 8,364,466 km (0.073 R)
• M14: 9,013,870 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.1

Radius: 9.6

Gravity: 7 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.15 AU - 1.21 AU

Year: 828 Days

Day: 11.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,146,413 km

• M1: 119,678 km (0.039 R)
• M2: 530,175 km (0.107 R)
• M3: 848,968 km (0.063 R)
• M4: 1,167,911 km (0.095 R)
• M5: 1,497,923 km (0.105 R)
• M6: 1,881,792 km (0.069 R)
• M7: 2,237,835 km (0.076 R)
• M8: 2,719,988 km (0.06 R)
• M9: 3,643,606 km (0.083 R)
• M10: 4,060,685 km (0.045 R)
• M11: 5,263,003 km (0.079 R)
• M12: 6,221,626 km (0.107 R)
• M13: 6,929,972 km (0.1 R)
• M14: 7,408,087 km (0.073 R)
• M15: 8,279,045 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866

Radius: 8.1

Gravity: 13.2 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.62 AU - 2.04 AU

Year: 1598 Days

Day: 10.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,146,413 km

• M1: 131,796 km (0.116 R)
• M2: 426,504 km (0.101 R)
• M3: 926,310 km (0.081 R)
• M4: 1,357,601 km (0.115 R)
• M5: 1,695,393 km (0.104 R)
• M6: 2,449,067 km (0.07 R)
• M7: 2,938,701 km (0.075 R)
• M8: 3,983,642 km (0.069 R)
• M9: 6,421,788 km (0.076 R)
• M10: 8,129,896 km (0.113 R)
• M11: 8,646,907 km (0.115 R)
• M12: 9,712,642 km (0.111 R)
• M13: 9,983,713 km (0.04 R)
• M14: 11,566,010 km (0.105 R)
• M15: 12,141,662 km (0.092 R)
• M16: 12,615,888 km (0.093 R)
• M17: 15,219,788 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159

Radius: 10.8

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.89 AU - 2.77 AU

Year: 2296 Days

Day: 14.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,146,413 km

• M1: 134,339 km (0.114 R)
• M2: 647,759 km (0.111 R)
• M3: 1,920,388 km (0.034 R)
• M4: 2,386,984 km (0.113 R)
• M5: 2,849,989 km (0.105 R)
• M6: 3,200,796 km (0.076 R)
• M7: 4,241,399 km (0.099 R)
• M8: 5,312,819 km (0.081 R)
• M9: 7,246,072 km (0.105 R)
• M10: 10,563,106 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.5

Radius: 12.1

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.63 AU - 3.33 AU

Year: 3322 Days

Day: 13.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,146,413 km

• M1: 150,795 km (0.061 R)
• M2: 599,738 km (0.104 R)
• M3: 1,015,171 km (0.089 R)
• M4: 1,472,193 km (0.039 R)
• M5: 1,849,179 km (0.052 R)
• M6: 2,647,284 km (0.027 R)
• M7: 3,140,807 km (0.105 R)
• M8: 3,760,890 km (0.116 R)
• M9: 5,739,023 km (0.066 R)
• M10: 6,122,442 km (0.078 R)
• M11: 7,482,586 km (0.114 R)
• M12: 10,226,361 km (0.107 R)
• M13: 11,590,843 km (0.043 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.6

Radius: 12.5

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.88 AU - 3.5 AU

Year: 3679 Days

Day: 9.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 70,146,413 km

• M1: 155,432 km (0.1 R)
• M2: 678,875 km (0.116 R)
• M3: 1,517,670 km (0.077 R)
• M4: 2,036,326 km (0.095 R)
• M5: 2,557,525 km (0.091 R)
• M6: 3,280,831 km (0.117 R)
• M7: 4,980,412 km (0.107 R)
• M8: 7,106,796 km (0.053 R)
• M9: 9,183,813 km (0.099 R)
• M10: 10,277,374 km (0.051 R)
• M11: 11,592,189 km (0.083 R)
• M12: 12,385,507 km (0.112 R)
• M13: 14,028,540 km (0.099 R)
• M14: 14,714,147 km (0.097 R)
• M15: 15,477,396 km (0.051 R)
• M16: 16,847,114 km (0.086 R)
• M17: 21,097,339 km (0.036 R)
• M18: 21,787,583 km (0.091 R)
• M19: 23,140,696 km (0.108 R)
• M20: 24,322,968 km (0.047 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.6

Radius: 13.5

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 2.82 AU - 3.72 AU

Year: 3818 Days

Day: 13.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 62.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,146,413 km

• M1: 167,849 km (0.047 R)
• M2: 609,462 km (0.102 R)
• M3: 1,083,687 km (0.115 R)
• M4: 1,512,584 km (0.084 R)
• M5: 2,392,369 km (0.071 R)
• M6: 3,718,704 km (0.028 R)
• M7: 4,283,585 km (0.075 R)
• M8: 5,179,826 km (0.045 R)
• M9: 5,912,257 km (0.041 R)
• M10: 6,438,094 km (0.109 R)
• M11: 6,909,626 km (0.051 R)
• M12: 7,374,277 km (0.105 R)
• M13: 7,798,088 km (0.039 R)
• M14: 9,695,139 km (0.038 R)
• M15: 10,924,983 km (0.115 R)
• M16: 11,477,298 km (0.069 R)
• M17: 13,246,592 km (0.072 R)
• M18: 14,150,463 km (0.094 R)
• M19: 15,681,447 km (0.111 R)
• M20: 16,900,371 km (0.111 R)
• M21: 17,426,506 km (0.063 R)
• M22: 18,017,867 km (0.063 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.6

Radius: 14

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 5.65 AU - 6.23 AU

Year: 9347 Days

Day: 13.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 70,146,413 km

• M1: 174,132 km (0.108 R)
• M2: 892,800 km (0.092 R)
• M3: 2,303,059 km (0.104 R)
• M4: 5,440,426 km (0.118 R)
• M5: 6,624,044 km (0.029 R)
• M6: 7,843,267 km (0.112 R)
• M7: 9,449,050 km (0.078 R)
• M8: 10,098,155 km (0.11 R)
• M9: 10,884,143 km (0.111 R)
• M10: 12,401,215 km (0.088 R)
• M11: 13,241,506 km (0.095 R)
• M12: 16,842,177 km (0.115 R)
• M13: 20,468,729 km (0.116 R)
• M14: 21,302,587 km (0.094 R)
• M15: 21,813,763 km (0.091 R)
• M16: 22,333,017 km (0.057 R)
• M17: 25,912,595 km (0.091 R)
• M18: 32,700,748 km (0.103 R)
• M19: 39,555,323 km (0.098 R)
• M20: 40,588,296 km (0.065 R)
• M21: 47,745,507 km (0.067 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 373.5

Radius: 5.9

Gravity: 10.73 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 9.64 AU - 12.62 AU

Year: 23975 Days

Day: 21.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 70,146,413 km

• M1: 73,602 km (0.098 R)
• M2: 365,767 km (0.105 R)
• M3: 677,080 km (0.056 R)
• M4: 2,160,941 km (0.064 R)
• M5: 2,523,566 km (0.069 R)
• M6: 3,651,684 km (0.03 R)
• M7: 3,979,453 km (0.075 R)
• M8: 4,457,867 km (0.09 R)
• M9: 6,206,816 km (0.071 R)
• M10: 6,983,378 km (0.041 R)
• M11: 7,822,921 km (0.109 R)
• M12: 8,267,078 km (0.092 R)
• M13: 11,479,243 km (0.084 R)
• M14: 14,174,249 km (0.11 R)
• M15: 14,685,574 km (0.114 R)
• M16: 20,219,050 km (0.084 R)
• M17: 24,418,711 km (0.115 R)
• M18: 27,783,466 km (0.113 R)
• M19: 31,939,594 km (0.105 R)
• M20: 33,711,880 km (0.063 R)
• M21: 35,950,762 km (0.118 R)
• M22: 36,627,692 km (0.099 R)
• M23: 42,803,990 km (0.095 R)
• M24: 45,425,693 km (0.1 R)
• M25: 52,530,993 km (0.053 R)
• M26: 55,173,939 km (0.075 R)
• M27: 58,274,953 km (0.082 R)
• M28: 61,490,110 km (0.081 R)
• M29: 67,859,389 km (0.029 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: 206 - 17,885 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit