🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.8

Radius: 13.7

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.51 AU - 0.55 AU

Year: 257 Days

Day: 5.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 45,639,578 km

• M1: 170,392 km (0.077 R)
• M2: 608,714 km (0.109 R)
• M3: 1,076,656 km (0.066 R)
• M4: 1,757,925 km (0.118 R)
• M5: 2,237,984 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.2

Radius: 13.5

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.47 AU - 0.71 AU

Year: 302 Days

Day: 10.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 45,639,578 km

• M1: 167,849 km (0.116 R)
• M2: 593,754 km (0.114 R)
• M3: 1,142,629 km (0.083 R)
• M4: 1,956,441 km (0.099 R)
• M5: 2,625,143 km (0.031 R)
• M6: 3,700,752 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.6

Radius: 9.3

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.66 AU - 2.04 AU

Year: 1678 Days

Day: 9.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,639,578 km

• M1: 116,088 km (0.073 R)
• M2: 446,998 km (0.101 R)
• M3: 939,175 km (0.066 R)
• M4: 1,266,196 km (0.077 R)
• M5: 1,714,990 km (0.06 R)
• M6: 2,402,841 km (0.114 R)
• M7: 2,817,078 km (0.068 R)
• M8: 3,221,590 km (0.118 R)
• M9: 3,901,213 km (0.102 R)
• M10: 4,405,358 km (0.104 R)
• M11: 4,728,340 km (0.068 R)
• M12: 5,183,566 km (0.071 R)
• M13: 5,667,815 km (0.073 R)
• M14: 6,116,010 km (0.083 R)
• M15: 6,820,915 km (0.113 R)
• M16: 7,328,351 km (0.052 R)
• M17: 7,886,949 km (0.068 R)
• M18: 8,528,275 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.4

Radius: 14.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2 AU - 2.2 AU

Year: 2029 Days

Day: 7.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,639,578 km

• M1: 185,352 km (0.066 R)
• M2: 784,192 km (0.092 R)
• M3: 1,850,974 km (0.08 R)
• M4: 2,502,623 km (0.1 R)
• M5: 3,015,295 km (0.1 R)
• M6: 3,736,656 km (0.099 R)
• M7: 5,691,900 km (0.095 R)
• M8: 6,384,837 km (0.098 R)
• M9: 6,941,192 km (0.117 R)
• M10: 7,682,000 km (0.097 R)
• M11: 9,091,063 km (0.066 R)
• M12: 9,827,084 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.4

Radius: 15

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.93 AU - 4.03 AU

Year: 4329 Days

Day: 10.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,639,578 km

• M1: 186,549 km (0.079 R)
• M2: 760,556 km (0.038 R)
• M3: 1,254,378 km (0.102 R)
• M4: 2,053,829 km (0.061 R)
• M5: 3,214,709 km (0.09 R)
• M6: 3,931,282 km (0.1 R)
• M7: 4,703,058 km (0.112 R)
• M8: 7,569,353 km (0.081 R)
• M9: 10,818,918 km (0.059 R)
• M10: 11,863,261 km (0.1 R)
• M11: 14,311,579 km (0.078 R)
• M12: 15,346,049 km (0.03 R)
• M13: 15,967,478 km (0.115 R)
• M14: 16,488,378 km (0.098 R)
• M15: 17,020,498 km (0.068 R)
• M16: 18,813,877 km (0.09 R)
• M17: 20,935,773 km (0.097 R)
• M18: 25,887,762 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.9

Radius: 12.1

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 3.81 AU - 3.97 AU

Year: 5116 Days

Day: 13.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 45,639,578 km

• M1: 152,889 km (0.116 R)
• M2: 574,605 km (0.077 R)
• M3: 1,212,640 km (0.115 R)
• M4: 1,824,047 km (0.043 R)
• M5: 2,262,967 km (0.086 R)
• M6: 2,685,282 km (0.047 R)
• M7: 3,911,835 km (0.102 R)
• M8: 4,600,583 km (0.115 R)
• M9: 5,257,916 km (0.113 R)
• M10: 7,435,762 km (0.117 R)
• M11: 8,764,042 km (0.082 R)
• M12: 9,733,735 km (0.071 R)
• M13: 10,331,528 km (0.098 R)
• M14: 13,538,757 km (0.111 R)
• M15: 21,768,435 km (0.093 R)
• M16: 24,855,985 km (0.106 R)
• M17: 25,410,844 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 398.4

Radius: 3.9

Gravity: 26.19 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 6.62 AU - 6.76 AU

Year: 11539 Days

Day: 23.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 45,639,578 km

• M1: 50,265 km (0.095 R)
• M2: 296,503 km (0.111 R)
• M3: 679,474 km (0.057 R)
• M4: 952,938 km (0.108 R)
• M5: 1,223,860 km (0.112 R)
• M6: 1,383,930 km (0.103 R)
• M7: 1,628,672 km (0.118 R)
• M8: 1,791,883 km (0.084 R)
• M9: 1,949,859 km (0.117 R)
• M10: 2,169,020 km (0.12 R)
• M11: 4,911,148 km (0.06 R)
• M12: 5,381,335 km (0.116 R)
• M13: 5,915,399 km (0.046 R)
• M14: 6,447,369 km (0.117 R)
• M15: 7,324,013 km (0.082 R)
• M16: 8,148,446 km (0.099 R)
• M17: 8,761,199 km (0.079 R)
• M18: 9,404,021 km (0.108 R)
• M19: 10,376,108 km (0.105 R)
• M20: 12,179,211 km (0.048 R)
• M21: 12,631,895 km (0.086 R)
• M22: 14,180,831 km (0.088 R)
• M23: 15,324,507 km (0.111 R)
• M24: 15,851,989 km (0.099 R)
• M25: 16,120,218 km (0.079 R)
• M26: 17,223,502 km (0.076 R)
• M27: 18,597,858 km (0.074 R)
• M28: 22,057,757 km (0.059 R)
• M29: 25,462,754 km (0.086 R)
• M30: 28,703,493 km (0.053 R)
• M31: 30,836,609 km (0.037 R)
• M32: 35,073,819 km (0.087 R)
• M33: 36,568,152 km (0.048 R)
• M34: 38,949,152 km (0.051 R)
• M35: 43,100,343 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 310.2

Radius: 7.2

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 6.57 AU - 8.51 AU

Year: 13807 Days

Day: 19.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,639,578 km

• M1: 89,609 km (0.108 R)
• M2: 387,458 km (0.082 R)
• M3: 759,359 km (0.117 R)
• M4: 1,016,368 km (0.103 R)
• M5: 1,786,647 km (0.094 R)
• M6: 2,918,206 km (0.06 R)
• M7: 5,127,018 km (0.119 R)
• M8: 5,955,790 km (0.1 R)
• M9: 8,088,906 km (0.115 R)
• M10: 9,115,447 km (0.064 R)
• M11: 9,879,294 km (0.101 R)
• M12: 10,428,468 km (0.111 R)
• M13: 12,255,506 km (0.074 R)
• M14: 14,098,253 km (0.119 R)
• M15: 15,780,331 km (0.09 R)
• M16: 16,392,336 km (0.102 R)
• M17: 20,084,861 km (0.064 R)
• M18: 24,117,870 km (0.047 R)
• M19: 28,161,799 km (0.109 R)
• M20: 30,604,433 km (0.057 R)
• M21: 35,674,604 km (0.075 R)
• M22: 38,043,487 km (0.12 R)
• M23: 38,529,680 km (0.118 R)
• M24: 40,641,702 km (0.118 R)
• M25: 41,790,464 km (0.107 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 172 - 19,817 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit