🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.4

Radius: 9.4

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.51 AU - 0.61 AU

Year: 295 Days

Day: 6.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,880,636 km

• M1: 117,135 km (0.058 R)
• M2: 411,993 km (0.093 R)
• M3: 772,823 km (0.114 R)
• M4: 1,316,162 km (0.043 R)
• M5: 1,609,075 km (0.058 R)
• M6: 1,974,542 km (0.059 R)
• M7: 2,436,351 km (0.098 R)
• M8: 2,747,215 km (0.11 R)
• M9: 3,566,862 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593

Radius: 12.8

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.1 AU - 1.4 AU

Year: 982 Days

Day: 9.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,880,636 km

• M1: 159,172 km (0.112 R)
• M2: 713,731 km (0.091 R)
• M3: 1,413,401 km (0.092 R)
• M4: 1,903,035 km (0.07 R)
• M5: 2,439,193 km (0.069 R)
• M6: 3,911,536 km (0.113 R)
• M7: 4,492,873 km (0.104 R)
• M8: 5,395,546 km (0.049 R)
• M9: 6,138,749 km (0.089 R)
• M10: 7,273,897 km (0.072 R)
• M11: 8,181,657 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.8

Radius: 10.6

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.51 AU - 2.01 AU

Year: 1641 Days

Day: 6.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,880,636 km

• M1: 131,796 km (0.117 R)
• M2: 1,237,174 km (0.119 R)
• M3: 1,797,718 km (0.118 R)
• M4: 2,237,236 km (0.105 R)
• M5: 2,576,823 km (0.083 R)
• M6: 2,939,000 km (0.091 R)
• M7: 3,348,599 km (0.105 R)
• M8: 3,959,108 km (0.102 R)
• M9: 5,648,068 km (0.055 R)
• M10: 7,283,023 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.8

Radius: 8.9

Gravity: 12.12 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.97 AU - 3.05 AU

Year: 3671 Days

Day: 9 Hours

Environment

Temp: -211 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 73,880,636 km

• M1: 112,049 km (0.072 R)
• M2: 452,683 km (0.114 R)
• M3: 813,812 km (0.116 R)
• M4: 1,206,208 km (0.077 R)
• M5: 1,486,704 km (0.119 R)
• M6: 1,811,481 km (0.079 R)
• M7: 2,198,341 km (0.108 R)
• M8: 3,273,949 km (0.12 R)
• M9: 4,399,225 km (0.087 R)
• M10: 4,817,949 km (0.096 R)
• M11: 5,678,436 km (0.069 R)
• M12: 7,290,054 km (0.115 R)
• M13: 7,771,609 km (0.081 R)
• M14: 9,544,943 km (0.104 R)
• M15: 10,290,389 km (0.11 R)
• M16: 10,721,081 km (0.092 R)
• M17: 12,516,704 km (0.089 R)
• M18: 13,257,962 km (0.08 R)
• M19: 13,613,705 km (0.101 R)
• M20: 14,504,411 km (0.098 R)
• M21: 16,343,268 km (0.077 R)
• M22: 17,959,374 km (0.108 R)
• M23: 18,774,383 km (0.041 R)
• M24: 20,209,476 km (0.09 R)
• M25: 21,856,847 km (0.104 R)
• M26: 23,149,822 km (0.071 R)
• M27: 24,190,125 km (0.059 R)
• M28: 24,952,177 km (0.08 R)
• M29: 26,684,670 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348

Radius: 13.1

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 5.21 AU - 5.53 AU

Year: 8747 Days

Day: 14.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,880,636 km

• M1: 165,904 km (0.08 R)
• M2: 632,350 km (0.119 R)
• M3: 1,180,327 km (0.077 R)
• M4: 2,760,978 km (0.083 R)
• M5: 3,378,219 km (0.108 R)
• M6: 6,886,439 km (0.104 R)
• M7: 9,462,664 km (0.091 R)
• M8: 13,931,900 km (0.078 R)
• M9: 18,598,606 km (0.04 R)
• M10: 20,873,989 km (0.067 R)
• M11: 24,379,666 km (0.112 R)
• M12: 29,640,275 km (0.072 R)
• M13: 32,236,995 km (0.03 R)
• M14: 34,152,895 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 506.3

Radius: 5.5

Gravity: 16.74 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 4.63 AU - 6.95 AU

Year: 9793 Days

Day: 16.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,880,636 km

• M1: 77,193 km (0.077 R)
• M2: 297,101 km (0.089 R)
• M3: 622,178 km (0.111 R)
• M4: 889,808 km (0.048 R)
• M5: 1,255,425 km (0.113 R)
• M6: 1,790,238 km (0.088 R)
• M7: 2,599,562 km (0.049 R)
• M8: 3,580,775 km (0.055 R)
• M9: 6,457,093 km (0.038 R)
• M10: 6,639,303 km (0.081 R)
• M11: 9,377,692 km (0.073 R)
• M12: 9,993,886 km (0.107 R)
• M13: 11,254,248 km (0.083 R)
• M14: 11,786,816 km (0.046 R)
• M15: 12,114,286 km (0.088 R)
• M16: 15,340,663 km (0.076 R)
• M17: 19,854,031 km (0.093 R)
• M18: 21,670,897 km (0.086 R)
• M19: 23,338,315 km (0.099 R)
• M20: 27,209,160 km (0.118 R)
• M21: 41,849,107 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 384.5

Radius: 6.1

Gravity: 10.33 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 9.53 AU - 10.41 AU

Year: 22128 Days

Day: 18.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 73,880,636 km

• M1: 76,145 km (0.1 R)
• M2: 968,646 km (0.105 R)
• M3: 1,161,927 km (0.091 R)
• M4: 2,878,113 km (0.064 R)
• M5: 4,564,231 km (0.114 R)
• M6: 6,146,677 km (0.097 R)
• M7: 7,822,173 km (0.066 R)
• M8: 9,236,621 km (0.113 R)
• M9: 10,288,444 km (0.086 R)
• M10: 10,636,558 km (0.087 R)
• M11: 10,932,612 km (0.065 R)
• M12: 11,980,695 km (0.1 R)
• M13: 14,274,629 km (0.072 R)
• M14: 14,490,050 km (0.104 R)
• M15: 17,411,098 km (0.082 R)
• M16: 28,483,285 km (0.089 R)
• M17: 30,694,342 km (0.12 R)
• M18: 32,518,837 km (0.099 R)
• M19: 40,397,559 km (0.086 R)
• M20: 41,701,304 km (0.057 R)
• M21: 48,642,795 km (0.114 R)
• M22: 50,949,893 km (0.075 R)
• M23: 55,072,960 km (0.082 R)
• M24: 56,495,187 km (0.041 R)
• M25: 58,674,230 km (0.11 R)
• M26: 60,908,623 km (0.11 R)
• M27: 61,476,048 km (0.1 R)
• M28: 66,541,582 km (0.113 R)
• M29: 66,942,354 km (0.032 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 451.3

Radius: 6.8

Gravity: 9.76 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 7.89 AU - 12.91 AU

Year: 23575 Days

Day: 24.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 166.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,880,636 km

• M1: 86,617 km (0.089 R)
• M2: 674,986 km (0.109 R)
• M3: 1,092,064 km (0.049 R)
• M4: 1,308,233 km (0.11 R)
• M5: 1,704,518 km (0.082 R)
• M6: 3,114,927 km (0.098 R)
• M7: 3,976,162 km (0.097 R)
• M8: 4,361,825 km (0.102 R)
• M9: 5,283,198 km (0.114 R)
• M10: 6,631,524 km (0.038 R)
• M11: 8,245,835 km (0.057 R)
• M12: 15,395,416 km (0.087 R)
• M13: 16,024,475 km (0.091 R)
• M14: 21,786,536 km (0.089 R)
• M15: 23,084,298 km (0.112 R)
• M16: 27,172,209 km (0.109 R)
• M17: 32,351,587 km (0.071 R)
• M18: 61,574,184 km (0.09 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: 378 - 19,541 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit