🌌 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 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.2

Radius: 8.3

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.48 AU - 0.72 AU

Year: 310 Days

Day: 14.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 79,867,831 km

• M1: 103,223 km (0.036 R)
• M2: 539,450 km (0.118 R)
• M3: 850,015 km (0.106 R)
• M4: 1,161,777 km (0.098 R)
• M5: 1,601,146 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715

Radius: 15

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.65 AU - 0.83 AU

Year: 424 Days

Day: 6.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,867,831 km

• M1: 186,848 km (0.085 R)
• M2: 708,645 km (0.101 R)
• M3: 1,231,041 km (0.107 R)
• M4: 1,702,873 km (0.064 R)
• M5: 2,443,382 km (0.109 R)
• M6: 3,076,630 km (0.114 R)
• M7: 3,960,005 km (0.078 R)
• M8: 4,590,710 km (0.114 R)
• M9: 5,303,993 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.5

Radius: 9.5

Gravity: 9.38 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.99 AU - 0.99 AU

Year: 657 Days

Day: 8.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,867,831 km

• M1: 119,230 km (0.051 R)
• M2: 436,975 km (0.11 R)
• M3: 779,106 km (0.077 R)
• M4: 1,389,465 km (0.049 R)
• M5: 2,818,424 km (0.025 R)
• M6: 3,799,786 km (0.103 R)
• M7: 4,266,382 km (0.056 R)
• M8: 4,587,419 km (0.103 R)
• M9: 4,924,612 km (0.028 R)
• M10: 6,076,666 km (0.052 R)
• M11: 6,823,308 km (0.052 R)
• M12: 8,374,040 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.5

Radius: 12.2

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.88 AU - 2.66 AU

Year: 2281 Days

Day: 14.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 79,867,831 km

• M1: 151,842 km (0.042 R)
• M2: 708,645 km (0.094 R)
• M3: 1,165,816 km (0.108 R)
• M4: 2,269,400 km (0.095 R)
• M5: 2,670,771 km (0.034 R)
• M6: 3,235,652 km (0.075 R)
• M7: 3,637,323 km (0.085 R)
• M8: 5,117,594 km (0.089 R)
• M9: 5,616,951 km (0.097 R)
• M10: 7,611,689 km (0.104 R)
• M11: 10,298,168 km (0.1 R)
• M12: 11,531,303 km (0.066 R)
• M13: 12,731,976 km (0.1 R)
• M14: 15,822,069 km (0.065 R)
• M15: 17,355,747 km (0.094 R)
• M16: 18,158,638 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.9

Radius: 14.5

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 4.19 AU - 4.81 AU

Year: 6366 Days

Day: 6.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,867,831 km

• M1: 180,415 km (0.086 R)
• M2: 1,104,182 km (0.099 R)
• M3: 1,813,126 km (0.113 R)
• M4: 2,445,476 km (0.105 R)
• M5: 3,034,593 km (0.098 R)
• M6: 3,910,339 km (0.113 R)
• M7: 5,183,566 km (0.092 R)
• M8: 6,646,933 km (0.047 R)
• M9: 7,191,618 km (0.101 R)
• M10: 8,663,961 km (0.088 R)
• M11: 9,952,298 km (0.042 R)
• M12: 11,829,302 km (0.065 R)
• M13: 12,522,688 km (0.118 R)
• M14: 13,700,173 km (0.066 R)
• M15: 15,134,667 km (0.102 R)
• M16: 17,607,969 km (0.107 R)
• M17: 20,949,237 km (0.111 R)
• M18: 24,265,373 km (0.087 R)
• M19: 26,092,711 km (0.099 R)
• M20: 36,625,747 km (0.031 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 272.3

Radius: 7.3

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 6.2 AU - 10.3 AU

Year: 15802 Days

Day: 16.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,867,831 km

• M1: 91,105 km (0.074 R)
• M2: 679,025 km (0.069 R)
• M3: 1,030,131 km (0.033 R)
• M4: 1,278,912 km (0.099 R)
• M5: 1,713,943 km (0.107 R)
• M6: 2,084,796 km (0.119 R)
• M7: 2,835,478 km (0.037 R)
• M8: 3,076,929 km (0.051 R)
• M9: 3,601,270 km (0.078 R)
• M10: 4,019,096 km (0.089 R)
• M11: 4,556,602 km (0.089 R)
• M12: 4,920,124 km (0.101 R)
• M13: 5,205,408 km (0.081 R)
• M14: 8,030,862 km (0.103 R)
• M15: 21,206,246 km (0.068 R)
• M16: 23,088,337 km (0.074 R)
• M17: 26,597,155 km (0.117 R)
• M18: 27,181,784 km (0.099 R)
• M19: 33,508,277 km (0.094 R)
• M20: 37,495,510 km (0.056 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 430.8

Radius: 7.2

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 8.08 AU - 8.52 AU

Year: 15946 Days

Day: 18.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 79,867,831 km

• M1: 89,609 km (0.113 R)
• M2: 421,417 km (0.106 R)
• M3: 744,100 km (0.109 R)
• M4: 1,203,365 km (0.1 R)
• M5: 1,661,733 km (0.092 R)
• M6: 1,992,943 km (0.105 R)
• M7: 2,231,402 km (0.06 R)
• M8: 5,644,028 km (0.119 R)
• M9: 6,473,997 km (0.09 R)
• M10: 7,001,330 km (0.099 R)
• M11: 8,611,153 km (0.054 R)
• M12: 13,043,588 km (0.067 R)
• M13: 13,491,634 km (0.091 R)
• M14: 14,351,073 km (0.058 R)
• M15: 15,600,664 km (0.104 R)
• M16: 16,105,557 km (0.055 R)
• M17: 17,763,700 km (0.106 R)
• M18: 18,634,060 km (0.098 R)
• M19: 19,367,090 km (0.084 R)
• M20: 20,374,183 km (0.061 R)
• M21: 40,344,751 km (0.09 R)
• M22: 45,248,868 km (0.076 R)
• M23: 45,686,891 km (0.095 R)
• M24: 49,292,947 km (0.05 R)
• M25: 51,959,080 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 686

Radius: 3.2

Gravity: 66.99 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 7.28 AU - 11.22 AU

Year: 18760 Days

Day: 17.2 Hours

Environment

Temp: -241 °C

Axial Tilt: 52.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 79,867,831 km

• M1: 39,793 km (0.092 R)
• M2: 159,621 km (0.072 R)
• M3: 349,760 km (0.094 R)
• M4: 531,970 km (0.102 R)
• M5: 816,056 km (0.102 R)
• M6: 938,427 km (0.106 R)
• M7: 1,523,206 km (0.117 R)
• M8: 2,496,639 km (0.071 R)
• M9: 3,329,151 km (0.119 R)
• M10: 3,498,346 km (0.059 R)
• M11: 4,232,872 km (0.104 R)
• M12: 4,636,188 km (0.12 R)
• M13: 6,165,975 km (0.109 R)
• M14: 8,617,286 km (0.026 R)
• M15: 10,173,254 km (0.082 R)
• M16: 11,141,601 km (0.096 R)
• M17: 12,436,221 km (0.099 R)
• M18: 13,259,458 km (0.037 R)
• M19: 13,755,973 km (0.091 R)
• M20: 15,089,638 km (0.114 R)
• M21: 15,709,123 km (0.118 R)
• M22: 16,104,809 km (0.117 R)
• M23: 17,415,586 km (0.092 R)
• M24: 18,096,854 km (0.117 R)
• M25: 20,247,324 km (0.118 R)
• M26: 24,094,682 km (0.093 R)
• M27: 26,134,000 km (0.071 R)
• M28: 26,466,107 km (0.094 R)
• M29: 29,944,258 km (0.027 R)
• M30: 33,324,272 km (0.113 R)
• M31: 33,584,273 km (0.088 R)
• M32: 37,930,839 km (0.087 R)
• M33: 38,642,177 km (0.052 R)
• M34: 40,385,591 km (0.101 R)
• M35: 40,681,196 km (0.075 R)
• M36: 40,978,148 km (0.113 R)
• M37: 44,813,837 km (0.075 R)
• M38: 45,448,880 km (0.117 R)
• M39: 52,308,092 km (0.096 R)
• M40: 55,708,003 km (0.109 R)
• M41: 59,252,425 km (0.07 R)
• M42: 70,567,260 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 452.9

Radius: 3.3

Gravity: 41.59 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 9.7 AU - 10.6 AU

Year: 21564 Days

Day: 23.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 79,867,831 km

• M1: 41,439 km (0.061 R)
• M2: 146,905 km (0.045 R)
• M3: 1,103,583 km (0.111 R)
• M4: 1,293,872 km (0.093 R)
• M5: 1,704,967 km (0.115 R)
• M6: 1,959,583 km (0.105 R)
• M7: 2,410,171 km (0.099 R)
• M8: 2,544,361 km (0.116 R)
• M9: 2,754,695 km (0.03 R)
• M10: 2,951,416 km (0.058 R)
• M11: 3,183,891 km (0.093 R)
• M12: 5,350,667 km (0.098 R)
• M13: 5,735,283 km (0.119 R)
• M14: 6,821,214 km (0.083 R)
• M15: 10,005,854 km (0.105 R)
• M16: 10,352,771 km (0.079 R)
• M17: 12,274,056 km (0.111 R)
• M18: 14,937,048 km (0.11 R)
• M19: 16,482,245 km (0.056 R)
• M20: 17,047,276 km (0.098 R)
• M21: 19,436,803 km (0.071 R)
• M22: 22,430,256 km (0.087 R)
• M23: 25,932,342 km (0.095 R)
• M24: 28,497,347 km (0.101 R)
• M25: 28,843,965 km (0.084 R)
• M26: 29,663,463 km (0.113 R)
• M27: 29,781,795 km (0.113 R)
• M28: 36,108,438 km (0.104 R)
• M29: 36,786,266 km (0.077 R)
• M30: 49,979,601 km (0.103 R)
• M31: 51,330,769 km (0.077 R)
• M32: 60,711,453 km (0.069 R)
• M33: 61,862,310 km (0.078 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 633.5

Radius: 7.6

Gravity: 10.97 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 9.27 AU - 11.53 AU

Year: 22366 Days

Day: 22.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 79,867,831 km

• M1: 94,546 km (0.061 R)
• M2: 659,128 km (0.094 R)
• M3: 909,705 km (0.111 R)
• M4: 1,699,881 km (0.112 R)
• M5: 2,313,681 km (0.108 R)
• M6: 4,646,959 km (0.091 R)
• M7: 5,354,706 km (0.102 R)
• M8: 7,910,137 km (0.09 R)
• M9: 9,887,821 km (0.103 R)
• M10: 10,738,883 km (0.099 R)
• M11: 12,447,740 km (0.107 R)
• M12: 13,954,489 km (0.075 R)
• M13: 14,254,583 km (0.072 R)
• M14: 16,729,530 km (0.071 R)
• M15: 17,411,846 km (0.075 R)
• M16: 18,832,128 km (0.073 R)
• M17: 19,477,044 km (0.076 R)
• M18: 19,946,782 km (0.095 R)
• M19: 21,006,683 km (0.07 R)
• M20: 22,306,987 km (0.071 R)
• M21: 27,928,576 km (0.109 R)
• M22: 28,166,437 km (0.111 R)
• M23: 28,405,644 km (0.054 R)
• M24: 31,000,269 km (0.098 R)
• M25: 31,383,389 km (0.105 R)
• M26: 32,947,585 km (0.113 R)
• M27: 40,785,466 km (0.038 R)
• M28: 42,176,128 km (0.079 R)
• M29: 42,489,386 km (0.078 R)
• M30: 43,438,435 km (0.106 R)
• M31: 46,370,553 km (0.092 R)
• M32: 48,912,669 km (0.081 R)
• M33: 52,263,961 km (0.118 R)
• M34: 59,223,852 km (0.1 R)
• M35: 60,606,585 km (0.096 R)
• M36: 66,141,707 km (0.088 R)
• M37: 71,114,938 km (0.11 R)
• M38: 72,228,096 km (0.117 R)
• M39: 74,946,888 km (0.157 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 153 - 18,642 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit