🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.48 AU - 0.66 AU

Year: 282 Days

Day: 15.6 Hours

Environment

Temp: -121 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.59 AU - 0.75 AU

Year: 360 Days

Day: 16.9 Hours

Environment

Temp: -138 °C

Axial Tilt: 88.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 69,078,690 km

• M1: 15,109 km (0.098 R)
• M2: 24,085 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.3

Radius: 9.5

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.91 AU - 1.15 AU

Year: 686 Days

Day: 5.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,078,690 km

• M1: 118,182 km (0.09 R)
• M2: 425,905 km (0.061 R)
• M3: 892,650 km (0.071 R)
• M4: 1,310,477 km (0.065 R)
• M5: 1,839,755 km (0.076 R)
• M6: 2,527,157 km (0.082 R)
• M7: 2,901,750 km (0.034 R)
• M8: 3,613,237 km (0.028 R)
• M9: 4,299,144 km (0.104 R)
• M10: 4,705,451 km (0.078 R)
• M11: 5,559,206 km (0.109 R)
• M12: 6,274,733 km (0.048 R)
• M13: 6,614,021 km (0.079 R)
• M14: 6,986,669 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.9

Radius: 10.1

Gravity: 9.27 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.97 AU - 1.25 AU

Year: 767 Days

Day: 14.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,078,690 km

• M1: 125,662 km (0.081 R)
• M2: 455,077 km (0.057 R)
• M3: 790,774 km (0.113 R)
• M4: 1,210,696 km (0.104 R)
• M5: 1,557,763 km (0.113 R)
• M6: 1,896,303 km (0.073 R)
• M7: 2,392,519 km (0.107 R)
• M8: 2,773,993 km (0.083 R)
• M9: 3,587,806 km (0.072 R)
• M10: 4,400,571 km (0.09 R)
• M11: 4,904,716 km (0.085 R)
• M12: 6,154,456 km (0.103 R)
• M13: 6,519,475 km (0.093 R)
• M14: 7,604,808 km (0.086 R)
• M15: 8,152,486 km (0.093 R)
• M16: 9,410,604 km (0.041 R)

Asteroid Belt

Center: 1.38 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.3

Radius: 10.5

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.65 AU - 1.65 AU

Year: 1390 Days

Day: 13.1 Hours

Environment

Temp: -173 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,078,690 km

• M1: 130,599 km (0.093 R)
• M2: 656,136 km (0.058 R)
• M3: 1,006,345 km (0.1 R)
• M4: 1,428,660 km (0.076 R)
• M5: 1,860,250 km (0.039 R)
• M6: 2,343,899 km (0.088 R)
• M7: 2,728,815 km (0.042 R)
• M8: 3,550,556 km (0.12 R)
• M9: 3,945,494 km (0.063 R)
• M10: 5,131,207 km (0.109 R)
• M11: 6,289,244 km (0.104 R)
• M12: 7,235,151 km (0.1 R)
• M13: 7,639,215 km (0.104 R)
• M14: 8,743,547 km (0.104 R)
• M15: 9,115,148 km (0.118 R)
• M16: 9,920,583 km (0.074 R)
• M17: 10,805,305 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.5

Radius: 12

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.44 AU - 2.38 AU

Year: 1732 Days

Day: 7.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,078,690 km

• M1: 149,299 km (0.116 R)
• M2: 546,631 km (0.073 R)
• M3: 1,300,753 km (0.101 R)
• M4: 1,700,329 km (0.114 R)
• M5: 2,437,847 km (0.041 R)
• M6: 3,119,116 km (0.089 R)
• M7: 3,635,228 km (0.091 R)
• M8: 4,425,404 km (0.119 R)
• M9: 6,244,215 km (0.095 R)
• M10: 6,740,880 km (0.117 R)
• M11: 7,754,854 km (0.087 R)
• M12: 8,237,008 km (0.067 R)
• M13: 8,900,026 km (0.119 R)
• M14: 9,429,004 km (0.106 R)
• M15: 10,586,144 km (0.065 R)
• M16: 11,835,884 km (0.091 R)
• M17: 14,854,470 km (0.102 R)
• M18: 15,694,612 km (0.093 R)
• M19: 16,369,747 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.5

Radius: 9.4

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.23 AU - 3.67 AU

Year: 3324 Days

Day: 14.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 102 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,078,690 km

• M1: 116,836 km (0.105 R)
• M2: 465,997 km (0.086 R)
• M3: 821,592 km (0.082 R)
• M4: 1,775,577 km (0.063 R)
• M5: 2,163,784 km (0.068 R)
• M6: 4,741,953 km (0.1 R)
• M7: 5,597,952 km (0.075 R)
• M8: 7,207,625 km (0.091 R)
• M9: 8,337,239 km (0.093 R)
• M10: 9,105,274 km (0.119 R)
• M11: 9,730,444 km (0.092 R)
• M12: 10,072,724 km (0.085 R)
• M13: 12,520,743 km (0.028 R)
• M14: 13,340,241 km (0.101 R)
• M15: 13,858,448 km (0.073 R)
• M16: 17,476,322 km (0.032 R)
• M17: 19,262,820 km (0.105 R)
• M18: 20,416,070 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 853.6

Radius: 3.5

Gravity: 69.68 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 7.16 AU - 8.1 AU

Year: 13826 Days

Day: 16.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 69,078,690 km

• M1: 43,533 km (0.095 R)
• M2: 230,530 km (0.075 R)
• M3: 352,303 km (0.074 R)
• M4: 706,252 km (0.106 R)
• M5: 2,179,342 km (0.106 R)
• M6: 2,470,160 km (0.094 R)
• M7: 2,786,260 km (0.09 R)
• M8: 3,336,781 km (0.093 R)
• M9: 3,526,171 km (0.056 R)
• M10: 3,694,170 km (0.038 R)
• M11: 4,199,511 km (0.077 R)
• M12: 8,629,703 km (0.061 R)
• M13: 9,567,532 km (0.097 R)
• M14: 9,839,650 km (0.099 R)
• M15: 10,456,293 km (0.108 R)
• M16: 11,158,056 km (0.115 R)
• M17: 17,693,090 km (0.026 R)
• M18: 17,856,151 km (0.066 R)
• M19: 19,283,914 km (0.107 R)
• M20: 21,611,956 km (0.076 R)
• M21: 24,522,831 km (0.076 R)
• M22: 26,816,466 km (0.117 R)
• M23: 32,430,126 km (0.111 R)
• M24: 32,552,197 km (0.115 R)
• M25: 34,929,906 km (0.105 R)
• M26: 37,824,774 km (0.106 R)
• M27: 38,915,792 km (0.112 R)
• M28: 49,533,650 km (0.112 R)
• M29: 63,632,501 km (0.117 R)
• M30: 64,015,622 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 725.8

Radius: 3

Gravity: 80.64 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 6.98 AU - 10.94 AU

Year: 17594 Days

Day: 23.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 69,078,690 km

• M1: 37,399 km (0.037 R)
• M2: 157,227 km (0.115 R)
• M3: 573,259 km (0.115 R)
• M4: 795,262 km (0.103 R)
• M5: 949,348 km (0.103 R)
• M6: 1,046,138 km (0.099 R)
• M7: 1,259,764 km (0.075 R)
• M8: 1,453,942 km (0.107 R)
• M9: 1,616,704 km (0.104 R)
• M10: 1,959,134 km (0.089 R)
• M11: 2,199,089 km (0.079 R)
• M12: 3,063,166 km (0.117 R)
• M13: 5,463,015 km (0.087 R)
• M14: 6,567,047 km (0.118 R)
• M15: 6,831,088 km (0.079 R)
• M16: 7,665,844 km (0.102 R)
• M17: 9,703,367 km (0.092 R)
• M18: 13,358,791 km (0.098 R)
• M19: 14,287,793 km (0.119 R)
• M20: 14,730,753 km (0.098 R)
• M21: 14,955,748 km (0.112 R)
• M22: 16,114,683 km (0.117 R)
• M23: 18,091,319 km (0.073 R)
• M24: 19,495,295 km (0.063 R)
• M25: 21,928,654 km (0.114 R)
• M26: 22,517,621 km (0.12 R)
• M27: 23,932,817 km (0.069 R)
• M28: 28,416,265 km (0.093 R)
• M29: 28,764,679 km (0.106 R)
• M30: 33,170,785 km (0.066 R)
• M31: 37,725,741 km (0.12 R)
• M32: 38,854,905 km (0.116 R)
• M33: 57,662,200 km (0.105 R)
• M34: 60,489,450 km (0.114 R)
• M35: 63,803,941 km (0.05 R)
• M36: 68,894,756 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 581

Radius: 4.5

Gravity: 28.69 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 7.54 AU - 11.18 AU

Year: 18786 Days

Day: 20.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 69,078,690 km

• M1: 55,950 km (0.078 R)
• M2: 218,413 km (0.063 R)
• M3: 432,188 km (0.045 R)
• M4: 1,134,401 km (0.119 R)
• M5: 1,369,718 km (0.117 R)
• M6: 1,620,444 km (0.12 R)
• M7: 2,338,963 km (0.101 R)
• M8: 2,744,971 km (0.113 R)
• M9: 2,890,231 km (0.109 R)
• M10: 3,412,327 km (0.077 R)
• M11: 3,754,308 km (0.119 R)
• M12: 4,213,574 km (0.096 R)
• M13: 4,473,425 km (0.091 R)
• M14: 6,220,728 km (0.118 R)
• M15: 7,176,509 km (0.102 R)
• M16: 8,683,857 km (0.105 R)
• M17: 11,229,265 km (0.084 R)
• M18: 12,838,489 km (0.084 R)
• M19: 16,988,185 km (0.065 R)
• M20: 17,729,143 km (0.096 R)
• M21: 18,663,531 km (0.09 R)
• M22: 19,274,938 km (0.12 R)
• M23: 20,354,137 km (0.109 R)
• M24: 23,528,454 km (0.096 R)
• M25: 24,864,512 km (0.06 R)
• M26: 26,468,052 km (0.094 R)
• M27: 27,350,829 km (0.09 R)
• M28: 32,810,852 km (0.079 R)
• M29: 37,558,640 km (0.057 R)
• M30: 39,951,757 km (0.052 R)
• M31: 42,146,059 km (0.032 R)
• M32: 50,878,385 km (0.11 R)
• M33: 53,803,173 km (0.103 R)
• M34: 54,861,578 km (0.116 R)
• M35: 57,202,336 km (0.101 R)
• M36: 59,796,662 km (0.065 R)
• M37: 59,985,006 km (0.086 R)
• M38: 62,468,480 km (0.091 R)
• M39: 64,622,690 km (0.12 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 16,929 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit