🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.8

Radius: 13.8

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.64 AU - 0.68 AU

Year: 377 Days

Day: 12.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 88,895,732 km

• M1: 171,589 km (0.093 R)
• M2: 668,702 km (0.094 R)
• M3: 1,116,748 km (0.094 R)
• M4: 1,553,873 km (0.079 R)
• M5: 2,075,970 km (0.037 R)
• M6: 2,550,793 km (0.102 R)
• M7: 3,219,645 km (0.043 R)
• M8: 4,121,571 km (0.101 R)
• M9: 4,589,663 km (0.115 R)
• M10: 5,108,618 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.2

Radius: 12.4

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.58 AU - 0.78 AU

Year: 394 Days

Day: 10 Hours

Environment

Temp: -148 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 88,895,732 km

• M1: 154,235 km (0.09 R)
• M2: 551,418 km (0.04 R)
• M3: 951,143 km (0.055 R)
• M4: 1,337,255 km (0.077 R)
• M5: 1,799,962 km (0.091 R)
• M6: 2,362,300 km (0.078 R)
• M7: 3,361,315 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.2

Radius: 13.5

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.82 AU - 1.02 AU

Year: 620 Days

Day: 6.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 88,895,732 km

• M1: 167,998 km (0.059 R)
• M2: 696,079 km (0.072 R)
• M3: 1,151,754 km (0.109 R)
• M4: 1,719,927 km (0.115 R)
• M5: 2,921,646 km (0.108 R)
• M6: 3,971,823 km (0.047 R)
• M7: 4,438,868 km (0.03 R)
• M8: 5,276,915 km (0.092 R)
• M9: 5,953,995 km (0.107 R)
• M10: 6,789,649 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.8

Radius: 8.6

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.86 AU - 0.98 AU

Year: 620 Days

Day: 8.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 88,895,732 km

• M1: 107,262 km (0.1 R)
• M2: 431,291 km (0.092 R)
• M3: 717,322 km (0.109 R)
• M4: 995,125 km (0.098 R)
• M5: 1,333,665 km (0.068 R)
• M6: 1,795,922 km (0.108 R)
• M7: 2,323,554 km (0.051 R)
• M8: 2,862,854 km (0.114 R)
• M9: 3,323,167 km (0.118 R)
• M10: 3,778,992 km (0.093 R)
• M11: 4,261,595 km (0.102 R)
• M12: 5,021,701 km (0.112 R)
• M13: 5,502,359 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.7

Radius: 12.2

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.07 AU - 1.43 AU

Year: 982 Days

Day: 9.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 88,895,732 km

• M1: 151,692 km (0.03 R)
• M2: 622,626 km (0.096 R)
• M3: 1,086,529 km (0.064 R)
• M4: 1,567,337 km (0.092 R)
• M5: 2,090,331 km (0.119 R)
• M6: 2,543,463 km (0.113 R)
• M7: 2,947,976 km (0.081 R)
• M8: 3,995,909 km (0.117 R)
• M9: 4,787,880 km (0.116 R)
• M10: 7,042,769 km (0.089 R)
• M11: 7,824,417 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.5

Radius: 14.8

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.71 AU - 2.25 AU

Year: 1958 Days

Day: 7.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 88,895,732 km

• M1: 184,155 km (0.105 R)
• M2: 659,577 km (0.111 R)
• M3: 1,186,012 km (0.074 R)
• M4: 2,117,558 km (0.032 R)
• M5: 2,948,275 km (0.114 R)
• M6: 5,349,470 km (0.109 R)
• M7: 6,400,395 km (0.094 R)
• M8: 7,138,212 km (0.025 R)
• M9: 7,961,748 km (0.078 R)
• M10: 8,847,667 km (0.076 R)
• M11: 11,483,282 km (0.091 R)
• M12: 12,899,076 km (0.109 R)
• M13: 13,948,805 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 497.8

Radius: 5.2

Gravity: 18.41 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 5.52 AU - 7.12 AU

Year: 11168 Days

Day: 21.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 66.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 88,895,732 km

• M1: 64,626 km (0.12 R)
• M2: 737,667 km (0.084 R)
• M3: 1,028,037 km (0.113 R)
• M4: 1,218,026 km (0.103 R)
• M5: 1,498,821 km (0.075 R)
• M6: 1,853,368 km (0.068 R)
• M7: 2,137,155 km (0.043 R)
• M8: 2,855,075 km (0.115 R)
• M9: 3,096,676 km (0.08 R)
• M10: 3,983,941 km (0.108 R)
• M11: 4,370,951 km (0.088 R)
• M12: 4,813,012 km (0.103 R)
• M13: 5,514,626 km (0.111 R)
• M14: 5,683,223 km (0.061 R)
• M15: 7,440,400 km (0.058 R)
• M16: 12,669,294 km (0.087 R)
• M17: 12,963,254 km (0.096 R)
• M18: 14,502,167 km (0.092 R)
• M19: 14,759,326 km (0.101 R)
• M20: 18,011,434 km (0.042 R)
• M21: 18,760,171 km (0.076 R)
• M22: 19,142,244 km (0.087 R)
• M23: 21,213,128 km (0.077 R)
• M24: 22,132,407 km (0.066 R)
• M25: 22,302,350 km (0.092 R)
• M26: 22,817,565 km (0.1 R)
• M27: 25,141,867 km (0.106 R)
• M28: 25,419,820 km (0.099 R)
• M29: 25,793,515 km (0.11 R)
• M30: 27,130,621 km (0.034 R)
• M31: 27,521,071 km (0.094 R)
• M32: 30,991,742 km (0.06 R)
• M33: 39,406,473 km (0.096 R)
• M34: 39,907,177 km (0.107 R)
• M35: 41,822,329 km (0.049 R)
• M36: 42,474,127 km (0.108 R)
• M37: 43,132,656 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 823.6

Radius: 4.1

Gravity: 48.99 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 8.4 AU - 12.08 AU

Year: 23033 Days

Day: 24.5 Hours

Environment

Temp: -246 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 88,895,732 km

• M1: 88,412 km (0.072 R)
• M2: 679,773 km (0.098 R)
• M3: 885,619 km (0.096 R)
• M4: 2,043,357 km (0.054 R)
• M5: 3,017,239 km (0.103 R)
• M6: 3,542,926 km (0.079 R)
• M7: 4,661,619 km (0.089 R)
• M8: 5,240,563 km (0.052 R)
• M9: 7,114,725 km (0.034 R)
• M10: 9,876,451 km (0.114 R)
• M11: 15,821,321 km (0.088 R)
• M12: 16,160,460 km (0.12 R)
• M13: 25,826,427 km (0.088 R)
• M14: 28,858,177 km (0.075 R)
• M15: 29,747,836 km (0.104 R)
• M16: 30,134,546 km (0.064 R)
• M17: 36,199,094 km (0.073 R)
• M18: 40,453,658 km (0.108 R)
• M19: 65,904,295 km (0.115 R)
• M20: 68,783,156 km (0.118 R)
• M21: 69,459,189 km (0.08 R)
• M22: 76,465,007 km (0.108 R)
• M23: 77,676,600 km (0.065 R)
• M24: 85,735,587 km (0.097 R)
• M25: 87,043,072 km (0.102 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: 482 - 18,870 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit