🌌 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: 992.3

Radius: 14.5

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.44 AU - 0.64 AU

Year: 269 Days

Day: 12.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,386,565 km

• M1: 180,265 km (0.107 R)
• M2: 843,732 km (0.115 R)
• M3: 1,309,131 km (0.071 R)
• M4: 2,012,540 km (0.106 R)
• M5: 2,627,238 km (0.072 R)
• M6: 3,301,176 km (0.116 R)
• M7: 4,356,140 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.5

Radius: 12.7

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.84 AU - 1.02 AU

Year: 608 Days

Day: 11 Hours

Environment

Temp: -176 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,386,565 km

• M1: 158,125 km (0.043 R)
• M2: 582,833 km (0.055 R)
• M3: 1,006,644 km (0.074 R)
• M4: 1,751,492 km (0.084 R)
• M5: 2,389,377 km (0.093 R)
• M6: 2,806,755 km (0.089 R)
• M7: 3,595,734 km (0.097 R)
• M8: 4,022,088 km (0.058 R)
• M9: 4,694,980 km (0.101 R)
• M10: 5,140,332 km (0.099 R)
• M11: 5,825,939 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 971.7

Radius: 11.4

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.82 AU - 1.3 AU

Year: 740 Days

Day: 12.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,386,565 km

• M1: 141,819 km (0.088 R)
• M2: 563,685 km (0.078 R)
• M3: 988,393 km (0.066 R)
• M4: 1,367,923 km (0.101 R)
• M5: 1,846,636 km (0.078 R)
• M6: 2,275,234 km (0.12 R)
• M7: 3,267,965 km (0.061 R)
• M8: 3,810,258 km (0.104 R)
• M9: 4,597,292 km (0.067 R)
• M10: 5,057,306 km (0.082 R)
• M11: 5,626,077 km (0.071 R)
• M12: 6,090,728 km (0.111 R)
• M13: 6,624,792 km (0.09 R)
• M14: 7,005,668 km (0.042 R)
• M15: 7,448,478 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291

Radius: 12.6

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.96 AU - 1.16 AU

Year: 740 Days

Day: 14.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,386,565 km

• M1: 156,779 km (0.09 R)
• M2: 586,872 km (0.052 R)
• M3: 983,456 km (0.086 R)
• M4: 1,455,138 km (0.117 R)
• M5: 1,889,720 km (0.092 R)
• M6: 2,657,157 km (0.114 R)
• M7: 3,510,613 km (0.089 R)
• M8: 4,393,241 km (0.089 R)
• M9: 6,077,713 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.4

Radius: 12.1

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.74 AU - 2.12 AU

Year: 1819 Days

Day: 12.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,386,565 km

• M1: 150,495 km (0.052 R)
• M2: 578,645 km (0.086 R)
• M3: 987,795 km (0.115 R)
• M4: 1,647,821 km (0.054 R)
• M5: 2,297,375 km (0.053 R)
• M6: 3,231,164 km (0.053 R)
• M7: 4,003,538 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.7

Radius: 11.5

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.53 AU - 4.73 AU

Year: 6757 Days

Day: 12.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,386,565 km

• M1: 143,315 km (0.049 R)
• M2: 506,838 km (0.101 R)
• M3: 1,772,735 km (0.039 R)
• M4: 2,601,806 km (0.095 R)
• M5: 3,053,741 km (0.059 R)
• M6: 4,033,607 km (0.076 R)
• M7: 5,336,455 km (0.12 R)
• M8: 7,174,564 km (0.111 R)
• M9: 14,571,581 km (0.094 R)
• M10: 16,974,721 km (0.095 R)
• M11: 18,040,306 km (0.068 R)
• M12: 19,209,713 km (0.052 R)
• M13: 20,867,706 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 755.7

Radius: 5.7

Gravity: 23.26 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 5.17 AU - 6.23 AU

Year: 9230 Days

Day: 21.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 72,386,565 km

• M1: 70,909 km (0.058 R)
• M2: 262,843 km (0.11 R)
• M3: 687,103 km (0.065 R)
• M4: 1,250,189 km (0.049 R)
• M5: 2,098,260 km (0.092 R)
• M6: 2,464,924 km (0.083 R)
• M7: 2,643,394 km (0.104 R)
• M8: 3,824,320 km (0.089 R)
• M9: 4,969,342 km (0.069 R)
• M10: 5,756,975 km (0.105 R)
• M11: 6,971,710 km (0.068 R)
• M12: 7,169,628 km (0.069 R)
• M13: 8,216,065 km (0.044 R)
• M14: 8,481,601 km (0.079 R)
• M15: 9,076,851 km (0.04 R)
• M16: 10,975,846 km (0.106 R)
• M17: 14,617,657 km (0.115 R)
• M18: 15,271,848 km (0.109 R)
• M19: 15,471,861 km (0.071 R)
• M20: 16,082,369 km (0.053 R)
• M21: 17,642,226 km (0.042 R)
• M22: 19,145,386 km (0.076 R)
• M23: 21,224,497 km (0.114 R)
• M24: 21,557,203 km (0.064 R)
• M25: 24,164,245 km (0.116 R)
• M26: 26,109,316 km (0.103 R)
• M27: 27,364,293 km (0.051 R)
• M28: 30,518,414 km (0.103 R)
• M29: 33,344,019 km (0.114 R)
• M30: 35,399,195 km (0.097 R)
• M31: 37,780,194 km (0.032 R)
• M32: 44,601,558 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 454.6

Radius: 3.9

Gravity: 29.89 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 8.11 AU - 12.71 AU

Year: 22781 Days

Day: 24.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 72,386,565 km

• M1: 48,470 km (0.037 R)
• M2: 179,817 km (0.11 R)
• M3: 463,454 km (0.091 R)
• M4: 1,178,831 km (0.074 R)
• M5: 2,001,620 km (0.105 R)
• M6: 2,866,594 km (0.058 R)
• M7: 3,312,246 km (0.12 R)
• M8: 3,682,950 km (0.054 R)
• M9: 5,034,118 km (0.077 R)
• M10: 5,293,820 km (0.07 R)
• M11: 5,640,887 km (0.064 R)
• M12: 8,769,128 km (0.111 R)
• M13: 9,309,475 km (0.076 R)
• M14: 9,587,877 km (0.11 R)
• M15: 10,278,571 km (0.091 R)
• M16: 10,515,982 km (0.06 R)
• M17: 13,586,479 km (0.104 R)
• M18: 15,830,297 km (0.106 R)
• M19: 18,746,109 km (0.095 R)
• M20: 22,693,698 km (0.069 R)
• M21: 24,860,473 km (0.089 R)
• M22: 29,006,578 km (0.118 R)
• M23: 29,361,574 km (0.102 R)
• M24: 35,041,057 km (0.079 R)
• M25: 54,201,702 km (0.077 R)
• M26: 54,560,438 km (0.106 R)
• M27: 55,463,859 km (0.027 R)
• M28: 61,678,454 km (0.087 R)
• M29: 67,302,287 km (0.091 R)
• M30: 69,390,673 km (0.108 R)
• M31: 69,601,905 km (0.1 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: 420 - 16,061 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit