🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492.4

Radius: 14.3

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.59 AU - 0.83 AU

Year: 406 Days

Day: 11 Hours

Environment

Temp: -162 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,005,890 km

• M1: 178,171 km (0.059 R)
• M2: 626,665 km (0.117 R)
• M3: 1,093,411 km (0.079 R)
• M4: 1,597,256 km (0.119 R)
• M5: 2,258,329 km (0.03 R)
• M6: 2,768,309 km (0.102 R)
• M7: 3,257,194 km (0.113 R)
• M8: 4,319,639 km (0.049 R)
• M9: 4,782,494 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.7

Radius: 11.8

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.77 AU - 0.81 AU

Year: 476 Days

Day: 6.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,005,890 km

• M1: 146,756 km (0.091 R)
• M2: 559,496 km (0.105 R)
• M3: 948,002 km (0.079 R)
• M4: 1,320,201 km (0.073 R)
• M5: 1,700,329 km (0.112 R)
• M6: 2,110,228 km (0.099 R)
• M7: 2,658,653 km (0.096 R)
• M8: 3,423,697 km (0.08 R)
• M9: 4,214,172 km (0.115 R)
• M10: 4,991,931 km (0.116 R)
• M11: 5,649,564 km (0.081 R)
• M12: 6,479,233 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.7

Radius: 10.5

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.69 AU - 0.89 AU

Year: 476 Days

Day: 5.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,005,890 km

• M1: 130,749 km (0.057 R)
• M2: 606,021 km (0.113 R)
• M3: 1,104,631 km (0.115 R)
• M4: 1,553,873 km (0.079 R)
• M5: 2,272,242 km (0.059 R)
• M6: 2,999,587 km (0.097 R)
• M7: 3,386,148 km (0.092 R)
• M8: 4,198,614 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576

Radius: 10.2

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.63 AU - 0.97 AU

Year: 485 Days

Day: 8.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,005,890 km

• M1: 126,859 km (0.108 R)
• M2: 501,153 km (0.084 R)
• M3: 1,004,101 km (0.077 R)
• M4: 1,406,070 km (0.065 R)
• M5: 2,012,540 km (0.06 R)
• M6: 3,143,949 km (0.096 R)
• M7: 3,532,903 km (0.04 R)
• M8: 3,874,884 km (0.102 R)
• M9: 4,365,565 km (0.098 R)
• M10: 4,851,309 km (0.113 R)
• M11: 5,356,651 km (0.08 R)
• M12: 5,758,321 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.8

Radius: 13.9

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.79 AU - 0.93 AU

Year: 541 Days

Day: 10.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,005,890 km

• M1: 172,935 km (0.032 R)
• M2: 653,144 km (0.103 R)
• M3: 1,141,581 km (0.118 R)
• M4: 1,714,392 km (0.115 R)
• M5: 2,335,971 km (0.064 R)
• M6: 2,919,851 km (0.119 R)
• M7: 3,838,382 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.9

Radius: 11.2

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.52 AU - 1.98 AU

Year: 1570 Days

Day: 7.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,005,890 km

• M1: 139,425 km (0.054 R)
• M2: 526,585 km (0.092 R)
• M3: 884,871 km (0.101 R)
• M4: 1,387,969 km (0.075 R)
• M5: 2,032,437 km (0.075 R)
• M6: 2,765,915 km (0.083 R)
• M7: 3,847,508 km (0.1 R)
• M8: 5,037,559 km (0.07 R)
• M9: 6,418,347 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.9

Radius: 13.5

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.4 AU - 4.08 AU

Year: 4906 Days

Day: 11.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,005,890 km

• M1: 168,148 km (0.104 R)
• M2: 635,791 km (0.102 R)
• M3: 1,116,299 km (0.073 R)
• M4: 1,779,915 km (0.069 R)
• M5: 2,355,718 km (0.115 R)
• M6: 3,750,269 km (0.106 R)
• M7: 4,894,992 km (0.06 R)
• M8: 6,791,444 km (0.11 R)
• M9: 7,792,403 km (0.054 R)
• M10: 9,263,100 km (0.079 R)
• M11: 10,539,619 km (0.088 R)
• M12: 11,006,065 km (0.089 R)
• M13: 11,535,043 km (0.107 R)
• M14: 12,334,793 km (0.117 R)
• M15: 13,117,938 km (0.082 R)
• M16: 14,553,479 km (0.083 R)
• M17: 16,337,434 km (0.03 R)
• M18: 17,026,631 km (0.113 R)
• M19: 17,475,425 km (0.075 R)
• M20: 20,695,818 km (0.082 R)
• M21: 22,179,081 km (0.109 R)
• M22: 24,212,116 km (0.069 R)
• M23: 25,523,342 km (0.115 R)
• M24: 28,019,831 km (0.095 R)
• M25: 31,149,269 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 68

Radius: 12.9

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 4.25 AU - 6.63 AU

Year: 8606 Days

Day: 7 Hours

Environment

Temp: -221 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,005,890 km

• M1: 160,668 km (0.027 R)
• M2: 626,366 km (0.085 R)
• M3: 1,563,597 km (0.076 R)
• M4: 2,377,110 km (0.105 R)
• M5: 3,529,163 km (0.12 R)
• M6: 5,023,646 km (0.063 R)
• M7: 5,656,146 km (0.112 R)
• M8: 10,093,967 km (0.109 R)
• M9: 12,830,411 km (0.072 R)
• M10: 16,811,210 km (0.111 R)
• M11: 19,081,358 km (0.091 R)
• M12: 19,723,731 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 692.5

Radius: 4.7

Gravity: 31.35 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 5.27 AU - 8.24 AU

Year: 11895 Days

Day: 15.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 54,005,890 km

• M1: 58,493 km (0.077 R)
• M2: 732,132 km (0.078 R)
• M3: 952,938 km (0.11 R)
• M4: 1,229,994 km (0.05 R)
• M5: 1,486,105 km (0.112 R)
• M6: 1,776,924 km (0.087 R)
• M7: 2,086,591 km (0.101 R)
• M8: 2,273,738 km (0.033 R)
• M9: 2,768,907 km (0.09 R)
• M10: 3,459,600 km (0.066 R)
• M11: 3,642,259 km (0.097 R)
• M12: 5,275,270 km (0.041 R)
• M13: 6,137,103 km (0.073 R)
• M14: 6,641,397 km (0.111 R)
• M15: 7,214,657 km (0.109 R)
• M16: 9,330,868 km (0.084 R)
• M17: 10,421,736 km (0.058 R)
• M18: 10,914,361 km (0.07 R)
• M19: 11,422,246 km (0.119 R)
• M20: 16,871,947 km (0.101 R)
• M21: 20,447,037 km (0.095 R)
• M22: 21,131,298 km (0.106 R)
• M23: 24,495,754 km (0.101 R)
• M24: 28,941,204 km (0.079 R)
• M25: 34,133,148 km (0.115 R)
• M26: 36,323,111 km (0.103 R)
• M27: 36,822,169 km (0.06 R)
• M28: 39,517,325 km (0.085 R)
• M29: 42,203,803 km (0.095 R)
• M30: 43,451,450 km (0.043 R)
• M31: 50,523,090 km (0.065 R)
• M32: 50,678,074 km (0.103 R)
• M33: 53,682,897 km (0.107 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 194 - 11,992 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit