🌌 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 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.42 AU - 0.68 AU

Year: 268 Days

Day: 15.8 Hours

Environment

Temp: -120 °C

Axial Tilt: 10.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.2

Radius: 11.7

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.66 AU - 0.98 AU

Year: 487 Days

Day: 13.4 Hours

Environment

Temp: -143 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 67,164,749 km

• M1: 145,559 km (0.106 R)
• M2: 579,093 km (0.112 R)
• M3: 950,545 km (0.078 R)
• M4: 1,637,947 km (0.07 R)
• M5: 2,200,884 km (0.084 R)
• M6: 2,707,721 km (0.092 R)
• M7: 3,744,285 km (0.096 R)
• M8: 4,339,086 km (0.07 R)
• M9: 6,095,664 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158

Radius: 12.4

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.02 AU - 2.34 AU

Year: 2112 Days

Day: 8.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,164,749 km

• M1: 154,684 km (0.093 R)
• M2: 540,348 km (0.111 R)
• M3: 1,011,282 km (0.068 R)
• M4: 1,565,093 km (0.055 R)
• M5: 1,977,085 km (0.117 R)
• M6: 4,083,872 km (0.029 R)
• M7: 4,591,458 km (0.045 R)
• M8: 5,046,385 km (0.099 R)
• M9: 6,731,755 km (0.119 R)
• M10: 7,740,942 km (0.082 R)
• M11: 9,468,947 km (0.105 R)
• M12: 9,938,535 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.2

Radius: 9.4

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.86 AU - 2.68 AU

Year: 2244 Days

Day: 8.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 67,164,749 km

• M1: 117,135 km (0.083 R)
• M2: 513,869 km (0.101 R)
• M3: 808,726 km (0.081 R)
• M4: 1,182,122 km (0.075 R)
• M5: 1,711,400 km (0.113 R)
• M6: 3,632,236 km (0.104 R)
• M7: 4,607,016 km (0.087 R)
• M8: 5,347,974 km (0.113 R)
• M9: 6,318,864 km (0.119 R)
• M10: 6,738,636 km (0.113 R)
• M11: 7,121,008 km (0.096 R)
• M12: 7,460,296 km (0.08 R)
• M13: 7,810,355 km (0.094 R)
• M14: 9,057,403 km (0.108 R)
• M15: 10,945,029 km (0.11 R)
• M16: 11,245,571 km (0.075 R)
• M17: 11,551,499 km (0.106 R)
• M18: 12,914,186 km (0.1 R)
• M19: 14,651,167 km (0.097 R)
• M20: 16,294,200 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.6

Radius: 14.3

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.29 AU - 3.81 AU

Year: 3494 Days

Day: 5.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 67,164,749 km

• M1: 178,021 km (0.12 R)
• M2: 765,642 km (0.057 R)
• M3: 1,229,545 km (0.109 R)
• M4: 1,852,171 km (0.058 R)
• M5: 3,646,149 km (0.097 R)
• M6: 4,288,223 km (0.068 R)
• M7: 5,472,739 km (0.116 R)
• M8: 6,317,668 km (0.103 R)
• M9: 7,313,242 km (0.027 R)
• M10: 8,482,947 km (0.076 R)
• M11: 8,961,960 km (0.09 R)
• M12: 9,420,178 km (0.07 R)
• M13: 10,342,449 km (0.116 R)
• M14: 11,456,654 km (0.043 R)
• M15: 11,997,300 km (0.066 R)
• M16: 12,601,975 km (0.077 R)
• M17: 13,672,049 km (0.095 R)
• M18: 14,591,776 km (0.088 R)
• M19: 15,335,278 km (0.093 R)
• M20: 15,937,110 km (0.071 R)
• M21: 16,840,681 km (0.111 R)
• M22: 17,897,740 km (0.073 R)
• M23: 18,381,539 km (0.108 R)
• M24: 20,733,816 km (0.111 R)
• M25: 21,335,050 km (0.12 R)
• M26: 25,341,580 km (0.039 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.1

Radius: 12.8

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.43 AU - 3.57 AU

Year: 4295 Days

Day: 14.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,164,749 km

• M1: 159,322 km (0.066 R)
• M2: 573,409 km (0.082 R)
• M3: 1,095,655 km (0.088 R)
• M4: 1,604,138 km (0.037 R)
• M5: 2,091,079 km (0.063 R)
• M6: 2,491,702 km (0.111 R)
• M7: 3,094,432 km (0.113 R)
• M8: 5,253,428 km (0.087 R)
• M9: 7,060,421 km (0.078 R)
• M10: 10,791,990 km (0.082 R)
• M11: 11,718,749 km (0.092 R)
• M12: 12,398,522 km (0.075 R)
• M13: 13,311,069 km (0.114 R)
• M14: 14,431,557 km (0.044 R)
• M15: 15,556,383 km (0.07 R)
• M16: 16,921,165 km (0.117 R)
• M17: 17,352,007 km (0.089 R)
• M18: 18,623,589 km (0.089 R)
• M19: 19,415,709 km (0.093 R)
• M20: 22,366,228 km (0.066 R)
• M21: 23,564,956 km (0.06 R)
• M22: 24,727,331 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.6

Radius: 10.5

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 3.3 AU - 4.1 AU

Year: 4669 Days

Day: 12.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 67,164,749 km

• M1: 131,347 km (0.083 R)
• M2: 469,588 km (0.111 R)
• M3: 884,572 km (0.062 R)
• M4: 1,558,810 km (0.117 R)
• M5: 1,913,357 km (0.045 R)
• M6: 2,322,208 km (0.098 R)
• M7: 2,806,905 km (0.039 R)
• M8: 3,160,405 km (0.113 R)
• M9: 3,671,281 km (0.11 R)
• M10: 4,527,879 km (0.096 R)
• M11: 5,017,064 km (0.055 R)
• M12: 5,427,860 km (0.069 R)
• M13: 7,335,532 km (0.104 R)
• M14: 8,536,055 km (0.119 R)
• M15: 9,529,384 km (0.068 R)
• M16: 10,731,553 km (0.11 R)
• M17: 11,184,535 km (0.108 R)
• M18: 11,650,233 km (0.106 R)
• M19: 12,670,491 km (0.099 R)
• M20: 21,116,039 km (0.055 R)
• M21: 22,409,312 km (0.102 R)
• M22: 23,150,270 km (0.104 R)
• M23: 27,019,021 km (0.115 R)
• M24: 28,714,862 km (0.038 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 733.6

Radius: 5.8

Gravity: 21.81 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 6.43 AU - 10.41 AU

Year: 16028 Days

Day: 23.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 67,164,749 km

• M1: 73,303 km (0.063 R)
• M2: 298,597 km (0.119 R)
• M3: 667,207 km (0.099 R)
• M4: 931,845 km (0.071 R)
• M5: 1,467,406 km (0.076 R)
• M6: 1,847,683 km (0.059 R)
• M7: 2,461,334 km (0.07 R)
• M8: 3,150,531 km (0.102 R)
• M9: 3,610,245 km (0.109 R)
• M10: 4,238,556 km (0.115 R)
• M11: 4,463,402 km (0.097 R)
• M12: 4,798,501 km (0.038 R)
• M13: 5,186,259 km (0.054 R)
• M14: 7,445,785 km (0.099 R)
• M15: 7,726,281 km (0.055 R)
• M16: 11,479,991 km (0.117 R)
• M17: 11,854,734 km (0.114 R)
• M18: 13,504,200 km (0.091 R)
• M19: 13,781,554 km (0.077 R)
• M20: 14,062,798 km (0.115 R)
• M21: 16,295,397 km (0.072 R)
• M22: 17,332,409 km (0.088 R)
• M23: 17,577,750 km (0.049 R)
• M24: 23,481,630 km (0.114 R)
• M25: 24,085,257 km (0.054 R)
• M26: 31,423,781 km (0.116 R)
• M27: 33,656,379 km (0.107 R)
• M28: 34,423,517 km (0.1 R)
• M29: 36,660,305 km (0.119 R)
• M30: 38,158,228 km (0.101 R)
• M31: 38,712,787 km (0.109 R)
• M32: 39,838,212 km (0.097 R)
• M33: 43,495,431 km (0.089 R)
• M34: 44,865,000 km (0.103 R)
• M35: 45,482,839 km (0.051 R)
• M36: 46,263,142 km (0.042 R)
• M37: 46,577,596 km (0.05 R)
• M38: 46,893,697 km (0.098 R)
• M39: 49,637,621 km (0.116 R)
• M40: 53,691,125 km (0.115 R)
• M41: 60,176,491 km (0.03 R)
• M42: 67,164,806 km (0.084 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: 227 - 12,665 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit