🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.59 AU - 0.73 AU

Year: 245 Days

Day: 20.6 Hours

Environment

Temp: -30 °C

Axial Tilt: 34.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 89,282,561 km

• M1: 46,226 km (0.103 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.81

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.83 AU - 1.31 AU

Year: 505 Days

Day: 15.4 Hours

Environment

Temp: -72 °C

Axial Tilt: 13 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.24 AU - 1.9 AU

Year: 898 Days

Day: 47.8 Hours

Environment

Temp: -118 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.1

Radius: 9.9

Gravity: 8.52 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.58 AU - 3.08 AU

Year: 2174 Days

Day: 14.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 89,282,561 km

• M1: 127,906 km (0.105 R)
• M2: 453,880 km (0.106 R)
• M3: 771,925 km (0.072 R)
• M4: 1,524,701 km (0.117 R)
• M5: 1,971,999 km (0.077 R)
• M6: 2,380,551 km (0.086 R)
• M7: 2,970,565 km (0.088 R)
• M8: 3,748,175 km (0.11 R)
• M9: 4,094,943 km (0.073 R)
• M10: 6,085,342 km (0.075 R)
• M11: 6,484,469 km (0.119 R)
• M12: 7,974,015 km (0.113 R)
• M13: 8,583,477 km (0.107 R)
• M14: 9,018,208 km (0.114 R)
• M15: 9,859,248 km (0.081 R)
• M16: 11,495,699 km (0.051 R)
• M17: 12,106,956 km (0.119 R)
• M18: 12,526,428 km (0.086 R)
• M19: 13,173,738 km (0.037 R)
• M20: 15,591,838 km (0.068 R)
• M21: 16,493,614 km (0.081 R)
• M22: 16,801,935 km (0.091 R)
• M23: 17,965,059 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.4

Radius: 13.3

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.66 AU - 5.6 AU

Year: 4549 Days

Day: 5.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 89,282,561 km

• M1: 168,746 km (0.11 R)
• M2: 1,188,405 km (0.098 R)
• M3: 1,727,706 km (0.109 R)
• M4: 4,429,144 km (0.069 R)
• M5: 5,266,593 km (0.101 R)
• M6: 5,723,465 km (0.078 R)
• M7: 6,295,078 km (0.104 R)
• M8: 7,420,354 km (0.117 R)
• M9: 12,474,966 km (0.09 R)
• M10: 14,765,160 km (0.084 R)
• M11: 16,009,815 km (0.032 R)
• M12: 18,522,610 km (0.107 R)
• M13: 20,621,618 km (0.111 R)
• M14: 21,626,317 km (0.106 R)
• M15: 22,804,251 km (0.08 R)
• M16: 24,687,987 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.2

Radius: 13.3

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 7.1 AU - 9.82 AU

Year: 11235 Days

Day: 5.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 89,282,561 km

• M1: 165,754 km (0.06 R)
• M2: 1,110,315 km (0.09 R)
• M3: 2,394,613 km (0.114 R)
• M4: 3,027,412 km (0.1 R)
• M5: 4,385,761 km (0.107 R)
• M6: 5,094,855 km (0.104 R)
• M7: 6,057,517 km (0.093 R)
• M8: 6,807,451 km (0.095 R)
• M9: 8,915,883 km (0.073 R)
• M10: 9,887,372 km (0.108 R)
• M11: 17,687,106 km (0.078 R)
• M12: 18,506,304 km (0.117 R)
• M13: 20,837,936 km (0.078 R)
• M14: 24,039,181 km (0.053 R)
• M15: 26,401,331 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 816.3

Radius: 6

Gravity: 22.68 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 9.73 AU - 12.67 AU

Year: 17113 Days

Day: 19 Hours

Environment

Temp: -202 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 89,282,561 km

• M1: 74,649 km (0.114 R)
• M2: 394,938 km (0.098 R)
• M3: 766,689 km (0.067 R)
• M4: 1,104,032 km (0.111 R)
• M5: 2,259,377 km (0.088 R)
• M6: 2,499,481 km (0.101 R)
• M7: 3,407,092 km (0.104 R)
• M8: 3,606,505 km (0.069 R)
• M9: 4,971,436 km (0.085 R)
• M10: 10,169,813 km (0.12 R)
• M11: 11,575,135 km (0.101 R)
• M12: 15,606,648 km (0.116 R)
• M13: 26,180,226 km (0.115 R)
• M14: 26,623,335 km (0.107 R)
• M15: 32,719,298 km (0.069 R)
• M16: 33,233,317 km (0.075 R)
• M17: 36,157,506 km (0.092 R)
• M18: 66,568,659 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 938.2

Radius: 4.8

Gravity: 40.72 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 10.06 AU - 16.2 AU

Year: 21722 Days

Day: 20.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 89,282,561 km

• M1: 62,682 km (0.075 R)
• M2: 862,581 km (0.101 R)
• M3: 1,035,816 km (0.078 R)
• M4: 1,217,577 km (0.098 R)
• M5: 1,556,566 km (0.107 R)
• M6: 2,081,954 km (0.072 R)
• M7: 2,616,168 km (0.069 R)
• M8: 2,769,505 km (0.106 R)
• M9: 3,691,776 km (0.062 R)
• M10: 3,852,444 km (0.082 R)
• M11: 5,352,313 km (0.051 R)
• M12: 7,869,297 km (0.052 R)
• M13: 10,238,628 km (0.112 R)
• M14: 10,556,673 km (0.049 R)
• M15: 11,895,125 km (0.091 R)
• M16: 12,823,529 km (0.104 R)
• M17: 15,148,430 km (0.045 R)
• M18: 21,842,636 km (0.111 R)
• M19: 24,001,482 km (0.118 R)
• M20: 24,337,030 km (0.102 R)
• M21: 24,562,474 km (0.077 R)
• M22: 25,132,293 km (0.109 R)
• M23: 27,744,571 km (0.086 R)
• M24: 28,737,601 km (0.09 R)
• M25: 31,323,550 km (0.063 R)
• M26: 34,626,522 km (0.076 R)
• M27: 37,400,216 km (0.076 R)
• M28: 37,550,262 km (0.097 R)
• M29: 37,851,403 km (0.057 R)
• M30: 38,918,036 km (0.104 R)
• M31: 39,071,972 km (0.095 R)
• M32: 42,891,056 km (0.04 R)
• M33: 54,660,519 km (0.114 R)
• M34: 56,218,581 km (0.118 R)
• M35: 56,810,390 km (0.094 R)
• M36: 62,747,331 km (0.116 R)
• M37: 63,171,291 km (0.093 R)
• M38: 67,295,405 km (0.08 R)
• M39: 70,218,398 km (0.094 R)
• M40: 77,041,258 km (0.047 R)
• M41: 83,778,697 km (0.105 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 170 - 16,370 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit