🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.31

Radius: 1.79

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.61 AU - 0.65 AU

Year: 328 Days

Day: 46.5 Hours

Environment

Temp: -123 °C

Axial Tilt: 33.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,263,170 km

• M1: 95,443 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.1

Radius: 9.3

Gravity: 9.99 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.83 AU - 0.85 AU

Year: 505 Days

Day: 11 Hours

Environment

Temp: -155 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 58,263,170 km

• M1: 115,639 km (0.11 R)
• M2: 571,314 km (0.1 R)
• M3: 1,012,179 km (0.116 R)
• M4: 1,318,556 km (0.045 R)
• M5: 1,626,727 km (0.086 R)
• M6: 2,162,587 km (0.107 R)
• M7: 2,472,554 km (0.09 R)
• M8: 2,790,299 km (0.112 R)
• M9: 3,123,304 km (0.116 R)
• M10: 3,692,973 km (0.1 R)
• M11: 4,081,329 km (0.091 R)
• M12: 4,405,508 km (0.116 R)
• M13: 4,891,551 km (0.111 R)
• M14: 5,465,558 km (0.046 R)
• M15: 5,805,295 km (0.099 R)
• M16: 6,121,395 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817

Radius: 13.7

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.43 AU - 1.45 AU

Year: 1134 Days

Day: 12.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,263,170 km

• M1: 174,282 km (0.101 R)
• M2: 809,324 km (0.114 R)
• M3: 1,261,409 km (0.115 R)
• M4: 2,209,411 km (0.049 R)
• M5: 2,730,760 km (0.088 R)
• M6: 3,926,047 km (0.093 R)
• M7: 4,532,516 km (0.113 R)
• M8: 5,956,688 km (0.09 R)
• M9: 6,523,514 km (0.088 R)
• M10: 7,276,440 km (0.082 R)
• M11: 8,471,877 km (0.059 R)
• M12: 10,651,219 km (0.101 R)
• M13: 11,182,441 km (0.058 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.8

Radius: 15

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.74 AU - 3.38 AU

Year: 3511 Days

Day: 8.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,263,170 km

• M1: 186,698 km (0.053 R)
• M2: 763,996 km (0.051 R)
• M3: 1,312,123 km (0.073 R)
• M4: 1,997,281 km (0.066 R)
• M5: 3,438,507 km (0.094 R)
• M6: 3,909,292 km (0.116 R)
• M7: 4,464,898 km (0.053 R)
• M8: 5,786,146 km (0.105 R)
• M9: 6,297,921 km (0.113 R)
• M10: 7,094,081 km (0.107 R)
• M11: 7,651,482 km (0.106 R)
• M12: 9,537,014 km (0.107 R)
• M13: 10,968,516 km (0.065 R)
• M14: 11,959,003 km (0.104 R)
• M15: 14,439,934 km (0.103 R)
• M16: 15,242,078 km (0.101 R)
• M17: 17,721,364 km (0.026 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.1

Radius: 8.7

Gravity: 9.41 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 4.24 AU - 5.76 AU

Year: 7334 Days

Day: 6.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 58,263,170 km

• M1: 108,458 km (0.119 R)
• M2: 478,115 km (0.109 R)
• M3: 909,555 km (0.117 R)
• M4: 1,362,687 km (0.115 R)
• M5: 2,023,311 km (0.103 R)
• M6: 5,394,050 km (0.095 R)
• M7: 6,105,089 km (0.109 R)
• M8: 6,804,459 km (0.117 R)
• M9: 7,098,718 km (0.073 R)
• M10: 7,595,084 km (0.104 R)
• M11: 8,279,045 km (0.089 R)
• M12: 11,073,982 km (0.07 R)
• M13: 12,821,884 km (0.116 R)
• M14: 13,328,871 km (0.099 R)
• M15: 14,323,099 km (0.085 R)
• M16: 17,533,020 km (0.049 R)
• M17: 18,157,741 km (0.115 R)
• M18: 18,725,315 km (0.037 R)
• M19: 20,272,007 km (0.118 R)
• M20: 21,584,878 km (0.042 R)
• M21: 23,201,134 km (0.097 R)
• M22: 25,420,568 km (0.04 R)
• M23: 25,952,239 km (0.109 R)
• M24: 28,722,342 km (0.085 R)
• M25: 29,883,521 km (0.086 R)
• M26: 32,402,749 km (0.1 R)
• M27: 34,301,894 km (0.036 R)
• M28: 34,951,149 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943

Radius: 14.7

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 4.79 AU - 6.65 AU

Year: 8974 Days

Day: 6.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,263,170 km

• M1: 190,139 km (0.099 R)
• M2: 1,199,625 km (0.114 R)
• M3: 2,357,064 km (0.073 R)
• M4: 3,047,757 km (0.089 R)
• M5: 6,105,388 km (0.101 R)
• M6: 7,499,940 km (0.103 R)
• M7: 8,496,411 km (0.107 R)
• M8: 10,180,285 km (0.071 R)
• M9: 10,699,838 km (0.037 R)
• M10: 13,757,020 km (0.099 R)
• M11: 16,847,563 km (0.11 R)
• M12: 19,175,006 km (0.081 R)
• M13: 21,624,522 km (0.085 R)
• M14: 23,910,676 km (0.086 R)
• M15: 26,548,237 km (0.088 R)
• M16: 28,038,381 km (0.101 R)
• M17: 29,166,199 km (0.059 R)
• M18: 33,751,823 km (0.097 R)
• M19: 35,976,194 km (0.045 R)
• M20: 39,556,968 km (0.051 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 740.9

Radius: 5.9

Gravity: 21.28 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 7.15 AU - 7.41 AU

Year: 12886 Days

Day: 21.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 58,263,170 km

• M1: 86,617 km (0.09 R)
• M2: 504,893 km (0.071 R)
• M3: 898,036 km (0.116 R)
• M4: 1,420,432 km (0.1 R)
• M5: 1,740,721 km (0.098 R)
• M6: 2,261,022 km (0.075 R)
• M7: 3,266,320 km (0.088 R)
• M8: 3,525,124 km (0.082 R)
• M9: 3,967,635 km (0.112 R)
• M10: 4,262,492 km (0.115 R)
• M11: 4,477,614 km (0.075 R)
• M12: 5,270,632 km (0.111 R)
• M13: 6,388,727 km (0.105 R)
• M14: 8,785,584 km (0.051 R)
• M15: 12,330,754 km (0.118 R)
• M16: 12,959,215 km (0.114 R)
• M17: 15,687,730 km (0.061 R)
• M18: 18,613,266 km (0.114 R)
• M19: 19,776,988 km (0.091 R)
• M20: 20,463,194 km (0.089 R)
• M21: 27,793,788 km (0.095 R)
• M22: 28,437,658 km (0.035 R)
• M23: 29,978,366 km (0.097 R)
• M24: 33,225,388 km (0.094 R)
• M25: 38,922,524 km (0.113 R)
• M26: 46,727,942 km (0.076 R)
• M27: 48,250,848 km (0.117 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 178 - 13,702 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit