🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.9

Radius: 14.9

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.52 AU - 0.54 AU

Year: 257 Days

Day: 5.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 84,681,878 km

• M1: 185,352 km (0.045 R)
• M2: 654,790 km (0.109 R)
• M3: 1,125,126 km (0.099 R)
• M4: 1,637,498 km (0.088 R)
• M5: 2,117,408 km (0.109 R)
• M6: 2,657,905 km (0.118 R)
• M7: 3,627,599 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.7

Radius: 11.8

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.5 AU - 0.7 AU

Year: 310 Days

Day: 7.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,681,878 km

• M1: 147,055 km (0.097 R)
• M2: 593,604 km (0.042 R)
• M3: 970,591 km (0.072 R)
• M4: 1,459,178 km (0.097 R)
• M5: 1,944,473 km (0.103 R)
• M6: 2,564,706 km (0.038 R)
• M7: 3,191,820 km (0.094 R)
• M8: 3,577,783 km (0.11 R)
• M9: 4,071,904 km (0.092 R)
• M10: 4,957,524 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.9

Radius: 10.2

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.59 AU - 0.83 AU

Year: 399 Days

Day: 11.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,681,878 km

• M1: 160,519 km (0.118 R)
• M2: 513,121 km (0.093 R)
• M3: 898,634 km (0.045 R)
• M4: 1,352,365 km (0.047 R)
• M5: 1,763,011 km (0.105 R)
• M6: 2,790,449 km (0.076 R)
• M7: 3,283,374 km (0.075 R)
• M8: 3,748,025 km (0.117 R)
• M9: 4,322,930 km (0.045 R)
• M10: 5,119,239 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.3

Radius: 11

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.73 AU - 0.91 AU

Year: 495 Days

Day: 6.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,681,878 km

• M1: 137,480 km (0.052 R)
• M2: 570,716 km (0.088 R)
• M3: 1,187,508 km (0.107 R)
• M4: 1,570,628 km (0.07 R)
• M5: 2,036,925 km (0.074 R)
• M6: 2,584,902 km (0.076 R)
• M7: 2,953,212 km (0.088 R)
• M8: 3,535,297 km (0.081 R)
• M9: 4,275,208 km (0.111 R)
• M10: 4,763,795 km (0.075 R)
• M11: 5,305,488 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.4

Radius: 13

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.93 AU - 2.45 AU

Year: 2161 Days

Day: 13.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 84,681,878 km

• M1: 161,715 km (0.097 R)
• M2: 586,274 km (0.114 R)
• M3: 1,272,928 km (0.107 R)
• M4: 1,973,346 km (0.091 R)
• M5: 2,392,818 km (0.114 R)
• M6: 3,364,307 km (0.084 R)
• M7: 4,519,352 km (0.097 R)
• M8: 5,282,750 km (0.031 R)
• M9: 6,000,371 km (0.068 R)
• M10: 7,124,898 km (0.098 R)
• M11: 8,128,400 km (0.111 R)
• M12: 9,154,791 km (0.116 R)
• M13: 9,574,713 km (0.113 R)
• M14: 10,680,989 km (0.076 R)
• M15: 11,107,343 km (0.052 R)
• M16: 11,666,540 km (0.084 R)
• M17: 12,497,855 km (0.073 R)
• M18: 13,323,934 km (0.117 R)
• M19: 17,312,363 km (0.105 R)
• M20: 18,119,593 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655.5

Radius: 10.6

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.05 AU - 2.67 AU

Year: 2418 Days

Day: 6.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 119.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 84,681,878 km

• M1: 132,095 km (0.073 R)
• M2: 531,372 km (0.099 R)
• M3: 905,516 km (0.117 R)
• M4: 1,519,017 km (0.047 R)
• M5: 2,420,494 km (0.051 R)
• M6: 3,143,201 km (0.064 R)
• M7: 3,573,744 km (0.078 R)
• M8: 4,023,734 km (0.085 R)
• M9: 4,406,555 km (0.06 R)
• M10: 4,791,769 km (0.113 R)
• M11: 5,316,708 km (0.107 R)
• M12: 6,400,994 km (0.102 R)
• M13: 7,096,025 km (0.087 R)
• M14: 7,995,408 km (0.108 R)
• M15: 8,440,461 km (0.081 R)
• M16: 8,834,951 km (0.098 R)
• M17: 9,696,635 km (0.108 R)
• M18: 10,166,372 km (0.083 R)
• M19: 10,651,219 km (0.099 R)
• M20: 12,157,520 km (0.083 R)
• M21: 12,534,207 km (0.119 R)
• M22: 14,165,273 km (0.102 R)
• M23: 14,723,572 km (0.097 R)
• M24: 17,418,727 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.4

Radius: 9.4

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.39 AU - 3.45 AU

Year: 4218 Days

Day: 7.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 84,681,878 km

• M1: 125,961 km (0.105 R)
• M2: 646,263 km (0.064 R)
• M3: 1,334,712 km (0.115 R)
• M4: 2,314,728 km (0.077 R)
• M5: 2,792,543 km (0.101 R)
• M6: 4,268,326 km (0.096 R)
• M7: 6,100,152 km (0.116 R)
• M8: 8,703,155 km (0.06 R)
• M9: 10,043,552 km (0.077 R)
• M10: 12,262,687 km (0.119 R)
• M11: 13,351,610 km (0.04 R)
• M12: 14,838,014 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 106

Radius: 6.7

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 6.53 AU - 8.05 AU

Year: 13126 Days

Day: 19.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,681,878 km

• M1: 84,224 km (0.119 R)
• M2: 605,572 km (0.074 R)
• M3: 1,436,588 km (0.099 R)
• M4: 3,593,341 km (0.072 R)
• M5: 5,573,717 km (0.065 R)
• M6: 9,090,315 km (0.107 R)
• M7: 10,190,457 km (0.099 R)
• M8: 10,546,051 km (0.059 R)
• M9: 15,194,805 km (0.1 R)
• M10: 22,140,335 km (0.076 R)
• M11: 29,307,270 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 908

Radius: 4.8

Gravity: 39.41 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 9.67 AU - 9.89 AU

Year: 20396 Days

Day: 21.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 84,681,878 km

• M1: 72,256 km (0.069 R)
• M2: 267,930 km (0.068 R)
• M3: 736,620 km (0.042 R)
• M4: 1,157,888 km (0.113 R)
• M5: 1,496,128 km (0.071 R)
• M6: 2,039,318 km (0.114 R)
• M7: 2,232,150 km (0.093 R)
• M8: 4,888,858 km (0.057 R)
• M9: 5,475,581 km (0.044 R)
• M10: 9,594,759 km (0.097 R)
• M11: 11,153,419 km (0.109 R)
• M12: 12,096,035 km (0.118 R)
• M13: 12,657,925 km (0.1 R)
• M14: 14,920,742 km (0.054 R)
• M15: 19,839,670 km (0.115 R)
• M16: 22,451,499 km (0.085 R)
• M17: 29,085,117 km (0.119 R)
• M18: 30,091,612 km (0.06 R)
• M19: 43,062,046 km (0.096 R)
• M20: 53,136,565 km (0.113 R)
• M21: 57,139,505 km (0.079 R)
• M22: 61,955,061 km (0.119 R)
• M23: 65,953,961 km (0.053 R)
• M24: 84,175,131 km (0.047 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 268 - 17,379 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit