🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284

Radius: 11.8

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.46 AU - 0.62 AU

Year: 279 Days

Day: 6.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 54,394,965 km

• M1: 147,354 km (0.073 R)
• M2: 606,470 km (0.071 R)
• M3: 1,049,579 km (0.044 R)
• M4: 1,791,135 km (0.096 R)
• M5: 2,771,899 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.5

Radius: 12.2

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.62 AU - 0.72 AU

Year: 385 Days

Day: 9.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 54,394,965 km

• M1: 153,039 km (0.077 R)
• M2: 636,838 km (0.12 R)
• M3: 1,091,167 km (0.112 R)
• M4: 2,086,591 km (0.093 R)
• M5: 2,981,037 km (0.099 R)
• M6: 3,505,826 km (0.028 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.7

Radius: 12.3

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.2 AU - 1.28 AU

Year: 971 Days

Day: 11.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 54,394,965 km

• M1: 153,039 km (0.105 R)
• M2: 712,684 km (0.094 R)
• M3: 1,920,687 km (0.044 R)
• M4: 4,287,026 km (0.104 R)
• M5: 5,986,159 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.1

Radius: 12.6

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.01 AU - 1.49 AU

Year: 982 Days

Day: 12.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,394,965 km

• M1: 156,779 km (0.094 R)
• M2: 920,177 km (0.103 R)
• M3: 1,760,917 km (0.077 R)
• M4: 2,180,090 km (0.067 R)
• M5: 2,656,260 km (0.036 R)
• M6: 4,259,351 km (0.114 R)
• M7: 5,269,435 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.1

Radius: 8.2

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 2.01 AU - 2.57 AU

Year: 2436 Days

Day: 8.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,394,965 km

• M1: 102,026 km (0.111 R)
• M2: 372,349 km (0.114 R)
• M3: 661,073 km (0.111 R)
• M4: 1,008,290 km (0.088 R)
• M5: 1,673,551 km (0.104 R)
• M6: 1,958,685 km (0.025 R)
• M7: 3,125,997 km (0.028 R)
• M8: 3,972,721 km (0.028 R)
• M9: 4,292,262 km (0.071 R)
• M10: 6,068,288 km (0.098 R)
• M11: 7,009,857 km (0.092 R)
• M12: 7,553,645 km (0.043 R)
• M13: 8,531,417 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.4

Radius: 13

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 2.84 AU - 2.9 AU

Year: 3418 Days

Day: 7.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,394,965 km

• M1: 161,715 km (0.082 R)
• M2: 578,495 km (0.101 R)
• M3: 1,382,135 km (0.096 R)
• M4: 1,830,629 km (0.048 R)
• M5: 2,377,260 km (0.057 R)
• M6: 3,311,798 km (0.083 R)
• M7: 3,725,585 km (0.117 R)
• M8: 4,590,111 km (0.106 R)
• M9: 5,767,746 km (0.119 R)
• M10: 7,385,647 km (0.06 R)
• M11: 7,998,101 km (0.058 R)
• M12: 8,819,991 km (0.09 R)
• M13: 9,398,636 km (0.114 R)
• M14: 13,371,955 km (0.108 R)
• M15: 14,430,809 km (0.113 R)
• M16: 15,235,496 km (0.048 R)
• M17: 17,044,733 km (0.11 R)
• M18: 17,943,965 km (0.109 R)
• M19: 18,697,639 km (0.084 R)
• M20: 19,532,844 km (0.118 R)
• M21: 20,206,334 km (0.067 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 819.7

Radius: 5.9

Gravity: 23.55 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 6.79 AU - 8.01 AU

Year: 14150 Days

Day: 20.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,394,965 km

• M1: 91,853 km (0.081 R)
• M2: 492,327 km (0.087 R)
• M3: 718,967 km (0.119 R)
• M4: 4,586,521 km (0.095 R)
• M5: 6,228,358 km (0.108 R)
• M6: 8,373,442 km (0.092 R)
• M7: 9,238,417 km (0.066 R)
• M8: 10,849,137 km (0.103 R)
• M9: 15,268,407 km (0.112 R)
• M10: 15,789,756 km (0.116 R)
• M11: 16,016,696 km (0.084 R)
• M12: 16,710,980 km (0.102 R)
• M13: 34,120,731 km (0.099 R)
• M14: 34,373,552 km (0.111 R)
• M15: 37,371,642 km (0.111 R)
• M16: 41,826,218 km (0.056 R)
• M17: 45,696,315 km (0.109 R)
• M18: 46,777,609 km (0.074 R)
• M19: 56,578,064 km (0.04 R)
• M20: 60,741,822 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 774.8

Radius: 3.6

Gravity: 59.78 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 6.64 AU - 8.44 AU

Year: 14553 Days

Day: 20.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 54,394,965 km

• M1: 45,478 km (0.104 R)
• M2: 176,077 km (0.095 R)
• M3: 605,123 km (0.1 R)
• M4: 746,045 km (0.04 R)
• M5: 1,145,471 km (0.099 R)
• M6: 1,497,475 km (0.094 R)
• M7: 2,769,206 km (0.074 R)
• M8: 3,212,913 km (0.084 R)
• M9: 5,320,448 km (0.052 R)
• M10: 5,924,225 km (0.054 R)
• M11: 6,042,258 km (0.051 R)
• M12: 6,656,656 km (0.109 R)
• M13: 6,957,199 km (0.037 R)
• M14: 7,912,979 km (0.105 R)
• M15: 9,479,119 km (0.114 R)
• M16: 10,824,902 km (0.116 R)
• M17: 11,727,875 km (0.078 R)
• M18: 15,172,515 km (0.102 R)
• M19: 17,565,034 km (0.109 R)
• M20: 19,581,464 km (0.1 R)
• M21: 20,108,647 km (0.101 R)
• M22: 21,840,541 km (0.096 R)
• M23: 22,312,373 km (0.061 R)
• M24: 27,847,943 km (0.045 R)
• M25: 31,048,589 km (0.095 R)
• M26: 31,525,058 km (0.096 R)
• M27: 33,604,020 km (0.058 R)
• M28: 36,427,680 km (0.09 R)
• M29: 40,244,969 km (0.102 R)
• M30: 47,866,831 km (0.096 R)
• M31: 50,935,681 km (0.069 R)
• M32: 53,619,467 km (0.06 R)
• M33: 55,343,882 km (0.116 R)
• M34: 58,179,061 km (0.119 R)
• M35: 61,482,780 km (0.109 R)
• M36: 62,045,268 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 397.2

Radius: 7.2

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 6.5 AU - 9.48 AU

Year: 15876 Days

Day: 24 Hours

Environment

Temp: -224 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,394,965 km

• M1: 90,058 km (0.086 R)
• M2: 365,916 km (0.045 R)
• M3: 968,945 km (0.082 R)
• M4: 2,773,844 km (0.107 R)
• M5: 3,140,508 km (0.115 R)
• M6: 3,461,844 km (0.071 R)
• M7: 3,750,718 km (0.088 R)
• M8: 5,409,908 km (0.099 R)
• M9: 12,845,072 km (0.115 R)
• M10: 15,631,332 km (0.056 R)
• M11: 16,495,858 km (0.057 R)
• M12: 17,929,305 km (0.098 R)
• M13: 21,389,354 km (0.071 R)
• M14: 26,358,995 km (0.053 R)
• M15: 27,273,038 km (0.105 R)
• M16: 28,103,007 km (0.118 R)
• M17: 34,270,628 km (0.06 R)
• M18: 37,476,959 km (0.089 R)
• M19: 38,244,247 km (0.098 R)
• M20: 42,930,550 km (0.1 R)
• M21: 46,502,797 km (0.113 R)
• M22: 46,796,907 km (0.113 R)
• M23: 49,042,072 km (0.098 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 238 - 11,366 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit