🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.5

Radius: 11.2

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.72 AU - 0.76 AU

Year: 418 Days

Day: 8.7 Hours

Environment

Temp: -132 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 83,198,656 km

• M1: 139,575 km (0.107 R)
• M2: 493,075 km (0.092 R)
• M3: 915,689 km (0.044 R)
• M4: 1,660,088 km (0.098 R)
• M5: 2,082,552 km (0.111 R)
• M6: 2,608,688 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19

Radius: 11.7

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.71 AU - 0.93 AU

Year: 487 Days

Day: 5.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 83,198,656 km

• M1: 152,590 km (0.105 R)
• M2: 563,834 km (0.086 R)
• M3: 972,237 km (0.094 R)
• M4: 1,557,463 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.8

Radius: 12.3

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.91 AU - 1.21 AU

Year: 716 Days

Day: 12.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 83,198,656 km

• M1: 153,637 km (0.119 R)
• M2: 562,488 km (0.08 R)
• M3: 956,678 km (0.046 R)
• M4: 1,422,526 km (0.031 R)
• M5: 2,146,281 km (0.076 R)
• M6: 3,091,739 km (0.12 R)
• M7: 3,594,986 km (0.115 R)
• M8: 4,224,345 km (0.069 R)
• M9: 5,271,530 km (0.08 R)
• M10: 6,048,691 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.9

Radius: 13.3

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.86 AU - 3.48 AU

Year: 3703 Days

Day: 13.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 83,198,656 km

• M1: 167,400 km (0.096 R)
• M2: 822,489 km (0.09 R)
• M3: 1,983,817 km (0.119 R)
• M4: 2,579,516 km (0.085 R)
• M5: 3,757,300 km (0.117 R)
• M6: 4,332,504 km (0.116 R)
• M7: 4,795,958 km (0.099 R)
• M8: 5,369,965 km (0.058 R)
• M9: 6,331,580 km (0.065 R)
• M10: 8,739,807 km (0.063 R)
• M11: 9,989,996 km (0.064 R)
• M12: 13,270,678 km (0.091 R)
• M13: 14,712,651 km (0.102 R)
• M14: 17,210,786 km (0.114 R)
• M15: 19,168,873 km (0.04 R)
• M16: 22,344,536 km (0.034 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.5

Radius: 8.9

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 3.21 AU - 4.25 AU

Year: 4726 Days

Day: 10.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 83,198,656 km

• M1: 110,702 km (0.101 R)
• M2: 396,434 km (0.053 R)
• M3: 686,804 km (0.101 R)
• M4: 2,034,681 km (0.072 R)
• M5: 2,716,398 km (0.106 R)
• M6: 3,028,758 km (0.079 R)
• M7: 3,326,458 km (0.109 R)
• M8: 4,113,493 km (0.054 R)
• M9: 5,465,409 km (0.095 R)
• M10: 6,287,150 km (0.066 R)
• M11: 6,995,496 km (0.117 R)
• M12: 7,319,674 km (0.103 R)
• M13: 9,094,055 km (0.049 R)
• M14: 9,441,570 km (0.095 R)
• M15: 10,964,028 km (0.087 R)
• M16: 12,127,600 km (0.042 R)
• M17: 15,502,528 km (0.036 R)
• M18: 17,671,248 km (0.119 R)
• M19: 18,031,181 km (0.091 R)
• M20: 20,426,093 km (0.118 R)
• M21: 20,955,969 km (0.107 R)
• M22: 21,359,434 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.2

Radius: 12.2

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 4.27 AU - 5.81 AU

Year: 7423 Days

Day: 5.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 83,198,656 km

• M1: 152,889 km (0.066 R)
• M2: 947,852 km (0.058 R)
• M3: 4,642,620 km (0.049 R)
• M4: 5,705,214 km (0.092 R)
• M5: 6,326,344 km (0.112 R)
• M6: 6,720,385 km (0.119 R)
• M7: 7,557,984 km (0.025 R)
• M8: 12,362,918 km (0.079 R)
• M9: 20,417,566 km (0.101 R)
• M10: 22,547,840 km (0.076 R)
• M11: 28,737,901 km (0.116 R)
• M12: 29,186,993 km (0.084 R)
• M13: 31,407,624 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 79.1

Radius: 5.1

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 8.97 AU - 10.11 AU

Year: 19330 Days

Day: 15.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 83,198,656 km

• M1: 71,657 km (0.112 R)
• M2: 299,794 km (0.065 R)
• M3: 1,151,006 km (0.087 R)
• M4: 1,447,210 km (0.096 R)
• M5: 2,800,023 km (0.063 R)
• M6: 3,164,444 km (0.093 R)
• M7: 3,559,831 km (0.084 R)
• M8: 3,962,997 km (0.103 R)
• M9: 4,448,741 km (0.101 R)
• M10: 4,664,910 km (0.066 R)
• M11: 5,002,104 km (0.118 R)
• M12: 9,901,584 km (0.09 R)
• M13: 10,317,167 km (0.114 R)
• M14: 11,838,278 km (0.064 R)
• M15: 14,303,052 km (0.111 R)
• M16: 16,187,238 km (0.098 R)
• M17: 21,340,884 km (0.066 R)
• M18: 24,703,246 km (0.111 R)
• M19: 25,638,831 km (0.116 R)
• M20: 30,190,496 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 789

Radius: 3.5

Gravity: 64.41 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 8.89 AU - 11.47 AU

Year: 21307 Days

Day: 18.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 83,198,656 km

• M1: 43,832 km (0.105 R)
• M2: 169,943 km (0.11 R)
• M3: 504,594 km (0.098 R)
• M4: 1,108,969 km (0.112 R)
• M5: 1,236,726 km (0.111 R)
• M6: 2,071,631 km (0.104 R)
• M7: 2,473,152 km (0.06 R)
• M8: 2,819,770 km (0.107 R)
• M9: 3,059,127 km (0.074 R)
• M10: 3,732,467 km (0.117 R)
• M11: 5,168,307 km (0.04 R)
• M12: 5,486,053 km (0.104 R)
• M13: 6,427,024 km (0.07 R)
• M14: 8,567,171 km (0.092 R)
• M15: 11,668,484 km (0.074 R)
• M16: 13,878,494 km (0.038 R)
• M17: 14,413,456 km (0.081 R)
• M18: 16,352,094 km (0.057 R)
• M19: 19,011,197 km (0.077 R)
• M20: 19,861,660 km (0.098 R)
• M21: 21,335,200 km (0.092 R)
• M22: 21,842,187 km (0.104 R)
• M23: 24,387,594 km (0.096 R)
• M24: 26,190,099 km (0.027 R)
• M25: 32,792,751 km (0.1 R)
• M26: 32,926,940 km (0.092 R)
• M27: 37,711,529 km (0.057 R)
• M28: 51,291,575 km (0.115 R)
• M29: 55,369,912 km (0.118 R)
• M30: 58,271,063 km (0.113 R)
• M31: 60,865,838 km (0.094 R)
• M32: 61,475,450 km (0.073 R)
• M33: 65,856,872 km (0.056 R)
• M34: 70,665,397 km (0.109 R)
• M35: 71,113,741 km (0.063 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: 221 - 14,677 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit