🌌 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 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.57 AU - 0.61 AU

Year: 297 Days

Day: 35.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 19.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,986,381 km

• M1: 78,240 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.6

Radius: 10.8

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.61 AU - 0.83 AU

Year: 401 Days

Day: 5.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,986,381 km

• M1: 134,339 km (0.081 R)
• M2: 485,445 km (0.082 R)
• M3: 829,371 km (0.052 R)
• M4: 1,171,800 km (0.114 R)
• M5: 1,823,149 km (0.057 R)
• M6: 2,244,866 km (0.069 R)
• M7: 2,811,094 km (0.119 R)
• M8: 3,355,630 km (0.062 R)
• M9: 4,378,131 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47

Radius: 12.2

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.87 AU - 1.01 AU

Year: 598 Days

Day: 7 Hours

Environment

Temp: -160 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 39,986,381 km

• M1: 151,842 km (0.04 R)
• M2: 602,730 km (0.107 R)
• M3: 1,116,299 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987

Radius: 9.8

Gravity: 10.28 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.93 AU - 1.53 AU

Year: 895 Days

Day: 8.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,986,381 km

• M1: 121,922 km (0.077 R)
• M2: 444,006 km (0.068 R)
• M3: 926,759 km (0.105 R)
• M4: 1,248,095 km (0.115 R)
• M5: 1,601,744 km (0.102 R)
• M6: 1,972,598 km (0.092 R)
• M7: 2,287,950 km (0.05 R)
• M8: 2,600,909 km (0.079 R)
• M9: 3,214,858 km (0.109 R)
• M10: 3,579,279 km (0.083 R)
• M11: 4,085,967 km (0.032 R)
• M12: 5,625,778 km (0.115 R)
• M13: 5,962,223 km (0.07 R)
• M14: 7,420,204 km (0.081 R)
• M15: 8,352,947 km (0.06 R)
• M16: 9,159,728 km (0.063 R)
• M17: 9,479,119 km (0.105 R)
• M18: 10,703,428 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.9

Radius: 14

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.89 AU - 2.49 AU

Year: 2126 Days

Day: 8.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,986,381 km

• M1: 174,132 km (0.101 R)
• M2: 756,965 km (0.109 R)
• M3: 1,591,721 km (0.104 R)
• M4: 2,030,342 km (0.096 R)
• M5: 2,668,527 km (0.1 R)
• M6: 3,176,262 km (0.047 R)
• M7: 3,885,057 km (0.04 R)
• M8: 4,370,951 km (0.071 R)
• M9: 4,836,798 km (0.031 R)
• M10: 6,341,304 km (0.079 R)
• M11: 8,637,332 km (0.035 R)
• M12: 9,630,812 km (0.114 R)
• M13: 10,155,451 km (0.109 R)
• M14: 11,771,108 km (0.108 R)
• M15: 13,879,690 km (0.032 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.6

Radius: 8.1

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 3.02 AU - 3.06 AU

Year: 3477 Days

Day: 10.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 39,986,381 km

• M1: 100,829 km (0.074 R)
• M2: 424,409 km (0.103 R)
• M3: 1,206,208 km (0.092 R)
• M4: 1,762,263 km (0.116 R)
• M5: 2,158,548 km (0.094 R)
• M6: 2,783,867 km (0.094 R)
• M7: 3,580,775 km (0.085 R)
• M8: 4,282,837 km (0.103 R)
• M9: 4,610,606 km (0.104 R)
• M10: 5,291,875 km (0.074 R)
• M11: 6,119,600 km (0.047 R)
• M12: 7,676,465 km (0.102 R)
• M13: 8,095,339 km (0.089 R)
• M14: 8,428,045 km (0.099 R)
• M15: 8,909,002 km (0.114 R)
• M16: 9,701,572 km (0.105 R)
• M17: 10,153,357 km (0.087 R)
• M18: 12,405,553 km (0.089 R)
• M19: 15,371,780 km (0.079 R)
• M20: 16,669,691 km (0.034 R)
• M21: 17,045,780 km (0.093 R)
• M22: 20,201,248 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.3

Radius: 10.8

Gravity: 8.37 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.17 AU - 3.19 AU

Year: 3720 Days

Day: 9.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 39,986,381 km

• M1: 134,339 km (0.108 R)
• M2: 600,187 km (0.091 R)
• M3: 1,087,577 km (0.047 R)
• M4: 1,598,603 km (0.089 R)
• M5: 1,938,190 km (0.076 R)
• M6: 2,451,610 km (0.08 R)
• M7: 3,110,140 km (0.086 R)
• M8: 4,152,388 km (0.062 R)
• M9: 4,604,622 km (0.103 R)
• M10: 5,385,673 km (0.087 R)
• M11: 7,277,787 km (0.031 R)
• M12: 8,153,682 km (0.058 R)
• M13: 8,788,426 km (0.095 R)
• M14: 10,369,376 km (0.083 R)
• M15: 12,132,088 km (0.118 R)
• M16: 12,910,147 km (0.047 R)
• M17: 15,055,679 km (0.102 R)
• M18: 17,307,576 km (0.032 R)
• M19: 17,919,431 km (0.086 R)
• M20: 20,376,726 km (0.071 R)
• M21: 21,059,042 km (0.03 R)
• M22: 21,475,672 km (0.09 R)
• M23: 22,325,388 km (0.1 R)
• M24: 22,977,335 km (0.111 R)
• M25: 25,476,817 km (0.034 R)
• M26: 26,268,788 km (0.101 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.1

Radius: 10.4

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.58 AU - 5.08 AU

Year: 5911 Days

Day: 10.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 39,986,381 km

• M1: 129,701 km (0.079 R)
• M2: 544,536 km (0.113 R)
• M3: 1,410,110 km (0.086 R)
• M4: 2,262,668 km (0.1 R)
• M5: 2,718,343 km (0.092 R)
• M6: 3,172,073 km (0.118 R)
• M7: 3,539,336 km (0.054 R)
• M8: 3,887,151 km (0.091 R)
• M9: 4,257,705 km (0.096 R)
• M10: 5,128,065 km (0.063 R)
• M11: 5,887,275 km (0.064 R)
• M12: 6,930,720 km (0.099 R)
• M13: 7,936,466 km (0.089 R)
• M14: 8,742,051 km (0.058 R)
• M15: 11,587,851 km (0.118 R)
• M16: 13,664,868 km (0.07 R)
• M17: 14,702,628 km (0.117 R)
• M18: 17,995,876 km (0.103 R)
• M19: 19,312,786 km (0.093 R)
• M20: 24,637,573 km (0.117 R)
• M21: 27,951,614 km (0.083 R)
• M22: 29,337,788 km (0.108 R)
• M23: 30,287,136 km (0.064 R)
• M24: 33,771,271 km (0.069 R)
• M25: 35,556,272 km (0.097 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 135.6

Radius: 5.3

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 7 AU - 10.6 AU

Year: 17125 Days

Day: 19.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 39,986,381 km

• M1: 65,973 km (0.112 R)
• M2: 490,980 km (0.071 R)
• M3: 980,315 km (0.107 R)
• M4: 1,187,508 km (0.117 R)
• M5: 1,928,466 km (0.099 R)
• M6: 2,919,103 km (0.071 R)
• M7: 3,108,793 km (0.104 R)
• M8: 3,679,509 km (0.083 R)
• M9: 4,028,072 km (0.079 R)
• M10: 4,290,467 km (0.101 R)
• M11: 5,146,316 km (0.111 R)
• M12: 6,927,429 km (0.084 R)
• M13: 8,223,096 km (0.04 R)
• M14: 9,261,455 km (0.09 R)
• M15: 9,718,925 km (0.069 R)
• M16: 9,905,922 km (0.118 R)
• M17: 10,481,874 km (0.089 R)
• M18: 11,700,049 km (0.112 R)
• M19: 11,965,286 km (0.084 R)
• M20: 14,414,353 km (0.03 R)
• M21: 15,278,730 km (0.106 R)
• M22: 16,506,330 km (0.029 R)
• M23: 16,706,043 km (0.075 R)
• M24: 18,362,091 km (0.105 R)
• M25: 19,303,212 km (0.102 R)
• M26: 23,811,493 km (0.113 R)
• M27: 28,494,206 km (0.092 R)
• M28: 28,877,924 km (0.106 R)
• M29: 35,939,692 km (0.101 R)
• M30: 36,275,389 km (0.094 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 503 - 17,277 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit