🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.45 AU - 0.73 AU

Year: 297 Days

Day: 23.1 Hours

Environment

Temp: -128 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 578.4

Radius: 9.3

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.84 AU - 1.04 AU

Year: 598 Days

Day: 12.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 26,872,107 km

• M1: 115,639 km (0.037 R)
• M2: 486,492 km (0.079 R)
• M3: 804,986 km (0.075 R)
• M4: 1,646,624 km (0.106 R)
• M5: 1,994,888 km (0.085 R)
• M6: 2,324,153 km (0.097 R)
• M7: 3,023,822 km (0.103 R)
• M8: 3,397,966 km (0.038 R)
• M9: 4,269,224 km (0.114 R)
• M10: 4,663,115 km (0.108 R)
• M11: 4,982,507 km (0.11 R)
• M12: 5,755,030 km (0.063 R)
• M13: 6,332,179 km (0.118 R)
• M14: 6,926,980 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.1

Radius: 14.2

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.07 AU - 1.29 AU

Year: 841 Days

Day: 11.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 26,872,107 km

• M1: 176,825 km (0.057 R)
• M2: 625,469 km (0.088 R)
• M3: 1,372,560 km (0.082 R)
• M4: 2,302,162 km (0.051 R)
• M5: 2,908,183 km (0.067 R)
• M6: 3,780,937 km (0.082 R)
• M7: 4,294,356 km (0.11 R)
• M8: 5,051,920 km (0.092 R)
• M9: 6,373,468 km (0.033 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.6

Radius: 14.2

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.71 AU - 3.49 AU

Year: 3581 Days

Day: 13.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 26,872,107 km

• M1: 178,171 km (0.091 R)
• M2: 1,017,565 km (0.111 R)
• M3: 1,483,113 km (0.061 R)
• M4: 2,165,130 km (0.102 R)
• M5: 2,686,927 km (0.108 R)
• M6: 3,547,863 km (0.069 R)
• M7: 4,234,517 km (0.089 R)
• M8: 4,957,673 km (0.117 R)
• M9: 6,871,928 km (0.109 R)
• M10: 7,943,198 km (0.057 R)
• M11: 11,691,373 km (0.092 R)
• M12: 12,629,501 km (0.102 R)
• M13: 17,245,643 km (0.094 R)
• M14: 18,774,234 km (0.046 R)
• M15: 19,798,979 km (0.118 R)
• M16: 22,666,321 km (0.107 R)
• M17: 23,754,347 km (0.105 R)
• M18: 24,876,780 km (0.09 R)
• M19: 26,666,419 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.2

Radius: 10.8

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 3.64 AU - 5.36 AU

Year: 6262 Days

Day: 9.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 26,872,107 km

• M1: 134,339 km (0.105 R)
• M2: 487,240 km (0.055 R)
• M3: 864,676 km (0.034 R)
• M4: 1,434,344 km (0.108 R)
• M5: 1,805,945 km (0.094 R)
• M6: 2,869,736 km (0.081 R)
• M7: 3,253,754 km (0.102 R)
• M8: 4,149,247 km (0.068 R)
• M9: 4,942,115 km (0.032 R)
• M10: 5,635,651 km (0.116 R)
• M11: 7,020,179 km (0.079 R)
• M12: 8,920,820 km (0.053 R)
• M13: 11,231,210 km (0.099 R)
• M14: 12,286,623 km (0.116 R)
• M15: 14,017,919 km (0.092 R)
• M16: 14,541,212 km (0.064 R)
• M17: 17,117,587 km (0.104 R)
• M18: 18,265,451 km (0.061 R)
• M19: 18,701,080 km (0.113 R)
• M20: 19,918,508 km (0.089 R)
• M21: 20,984,093 km (0.102 R)
• M22: 21,324,877 km (0.033 R)
• M23: 21,807,929 km (0.111 R)
• M24: 22,939,786 km (0.097 R)
• M25: 23,374,219 km (0.059 R)
• M26: 25,551,616 km (0.101 R)
• M27: 25,940,271 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.3

Radius: 9.4

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 3.87 AU - 6.45 AU

Year: 7689 Days

Day: 11.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 26,872,107 km

• M1: 120,127 km (0.105 R)
• M2: 479,611 km (0.063 R)
• M3: 772,374 km (0.074 R)
• M4: 1,180,477 km (0.103 R)
• M5: 2,998,390 km (0.107 R)
• M6: 4,334,299 km (0.081 R)
• M7: 5,391,507 km (0.103 R)
• M8: 6,402,490 km (0.114 R)
• M9: 7,573,691 km (0.076 R)
• M10: 8,796,056 km (0.101 R)
• M11: 9,409,407 km (0.056 R)
• M12: 13,763,453 km (0.086 R)
• M13: 14,113,811 km (0.088 R)
• M14: 16,538,643 km (0.048 R)
• M15: 20,487,279 km (0.036 R)
• M16: 23,581,561 km (0.097 R)
• M17: 24,083,761 km (0.044 R)
• M18: 27,616,066 km (0.1 R)
• M19: 29,216,614 km (0.111 R)
• M20: 32,705,086 km (0.074 R)
• M21: 34,388,511 km (0.102 R)
• M22: 35,251,541 km (0.102 R)
• M23: 37,813,255 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 52

Radius: 5

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 6.87 AU - 9.41 AU

Year: 15235 Days

Day: 22.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 26,872,107 km

• M1: 62,233 km (0.114 R)
• M2: 491,279 km (0.112 R)
• M3: 1,034,469 km (0.081 R)
• M4: 1,664,725 km (0.108 R)
• M5: 1,964,519 km (0.042 R)
• M6: 3,986,185 km (0.117 R)
• M7: 5,374,752 km (0.049 R)
• M8: 5,709,552 km (0.11 R)
• M9: 5,882,188 km (0.079 R)
• M10: 6,268,001 km (0.091 R)
• M11: 8,566,722 km (0.065 R)
• M12: 8,793,064 km (0.108 R)
• M13: 10,577,617 km (0.113 R)
• M14: 12,349,603 km (0.08 R)
• M15: 13,431,645 km (0.055 R)
• M16: 15,447,177 km (0.047 R)
• M17: 16,009,366 km (0.111 R)
• M18: 20,938,765 km (0.088 R)
• M19: 22,687,265 km (0.102 R)
• M20: 24,606,606 km (0.099 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 322 - 14,923 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit