🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.53 AU - 0.67 AU

Year: 173 Days

Day: 15.4 Hours

Environment

Temp: 200 °C

Axial Tilt: 36.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.51 AU - 0.75 AU

Year: 186 Days

Day: 29.3 Hours

Environment

Temp: 177 °C

Axial Tilt: 4.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.71 AU - 0.75 AU

Year: 233 Days

Day: 38.3 Hours

Environment

Temp: 191 °C

Axial Tilt: 11.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 95,028,412 km

• M1: 64,925 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.21 AU - 1.59 AU

Year: 618 Days

Day: 43.1 Hours

Environment

Temp: -34 °C

Axial Tilt: 46.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 95,028,412 km

• M1: 39,643 km (0.081 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.82

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.71 AU - 4.41 AU

Year: 2504 Days

Day: 18.8 Hours

Environment

Temp: -129 °C

Axial Tilt: 20.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 4.23 AU - 4.65 AU

Year: 3488 Days

Day: 37.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 20.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.1

Radius: 11.5

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 4.46 AU - 5.16 AU

Year: 3933 Days

Day: 5.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 95,028,412 km

• M1: 143,315 km (0.101 R)
• M2: 551,567 km (0.063 R)
• M3: 1,296,266 km (0.042 R)
• M4: 1,788,143 km (0.059 R)
• M5: 2,356,166 km (0.088 R)
• M6: 2,930,921 km (0.096 R)
• M7: 3,431,925 km (0.082 R)
• M8: 5,205,856 km (0.094 R)
• M9: 6,154,606 km (0.102 R)
• M10: 7,987,330 km (0.118 R)
• M11: 9,531,479 km (0.058 R)
• M12: 9,946,912 km (0.058 R)
• M13: 10,858,561 km (0.109 R)
• M14: 12,599,432 km (0.031 R)
• M15: 13,562,543 km (0.066 R)
• M16: 14,088,679 km (0.036 R)
• M17: 14,628,428 km (0.09 R)
• M18: 16,389,943 km (0.083 R)
• M19: 16,987,137 km (0.119 R)
• M20: 18,479,825 km (0.12 R)
• M21: 24,011,655 km (0.109 R)
• M22: 25,808,774 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.3

Radius: 9

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 8.05 AU - 11.99 AU

Year: 11824 Days

Day: 7.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 95,028,412 km

• M1: 112,348 km (0.068 R)
• M2: 537,356 km (0.072 R)
• M3: 1,146,967 km (0.115 R)
• M4: 1,547,740 km (0.105 R)
• M5: 2,314,578 km (0.095 R)
• M6: 2,916,261 km (0.078 R)
• M7: 3,857,979 km (0.096 R)
• M8: 4,489,133 km (0.117 R)
• M9: 5,390,011 km (0.104 R)
• M10: 6,522,766 km (0.104 R)
• M11: 6,960,639 km (0.1 R)
• M12: 7,249,363 km (0.062 R)
• M13: 9,754,230 km (0.032 R)
• M14: 10,649,424 km (0.116 R)
• M15: 12,421,261 km (0.042 R)
• M16: 12,847,166 km (0.107 R)
• M17: 14,447,863 km (0.108 R)
• M18: 18,041,054 km (0.115 R)
• M19: 18,430,158 km (0.115 R)
• M20: 18,824,947 km (0.042 R)
• M21: 19,387,136 km (0.101 R)
• M22: 20,376,876 km (0.086 R)
• M23: 21,055,152 km (0.114 R)
• M24: 21,486,593 km (0.03 R)
• M25: 23,089,085 km (0.068 R)
• M26: 26,932,553 km (0.087 R)
• M27: 27,646,434 km (0.076 R)
• M28: 28,477,600 km (0.099 R)
• M29: 29,111,895 km (0.113 R)
• M30: 31,743,322 km (0.046 R)
• M31: 42,885,820 km (0.067 R)
• M32: 47,454,988 km (0.047 R)
• M33: 50,623,471 km (0.099 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.6

Radius: 11.1

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 8.73 AU - 13.71 AU

Year: 14010 Days

Day: 12.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 95,028,412 km

• M1: 138,079 km (0.107 R)
• M2: 521,947 km (0.06 R)
• M3: 1,133,054 km (0.028 R)
• M4: 2,558,124 km (0.1 R)
• M5: 4,464,748 km (0.083 R)
• M6: 6,327,392 km (0.108 R)
• M7: 7,175,761 km (0.074 R)
• M8: 8,098,481 km (0.11 R)
• M9: 9,098,243 km (0.103 R)
• M10: 11,285,065 km (0.08 R)
• M11: 14,400,291 km (0.082 R)
• M12: 22,450,900 km (0.064 R)
• M13: 26,594,612 km (0.082 R)
• M14: 29,333,150 km (0.111 R)
• M15: 29,990,783 km (0.06 R)
• M16: 32,254,348 km (0.068 R)
• M17: 33,546,575 km (0.12 R)
• M18: 34,873,208 km (0.119 R)
• M19: 35,735,341 km (0.117 R)
• M20: 37,630,746 km (0.105 R)
• M21: 44,145,584 km (0.114 R)
• M22: 45,884,360 km (0.116 R)
• M23: 52,812,536 km (0.101 R)
• M24: 54,936,676 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 749.6

Radius: 6.6

Gravity: 17.21 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 15.95 AU - 18.53 AU

Year: 26685 Days

Day: 18.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 95,028,412 km

• M1: 82,129 km (0.073 R)
• M2: 310,565 km (0.11 R)
• M3: 673,490 km (0.077 R)
• M4: 1,178,083 km (0.105 R)
• M5: 1,478,326 km (0.086 R)
• M6: 1,849,030 km (0.07 R)
• M7: 2,671,369 km (0.082 R)
• M8: 3,880,120 km (0.107 R)
• M9: 4,475,071 km (0.1 R)
• M10: 5,374,603 km (0.108 R)
• M11: 6,483,273 km (0.084 R)
• M12: 8,336,491 km (0.12 R)
• M13: 8,791,867 km (0.083 R)
• M14: 9,690,202 km (0.059 R)
• M15: 14,949,764 km (0.119 R)
• M16: 17,297,852 km (0.037 R)
• M17: 19,090,483 km (0.097 R)
• M18: 20,796,198 km (0.098 R)
• M19: 23,040,466 km (0.097 R)
• M20: 27,254,937 km (0.111 R)
• M21: 33,210,129 km (0.095 R)
• M22: 35,816,722 km (0.092 R)
• M23: 36,866,301 km (0.113 R)
• M24: 37,628,352 km (0.116 R)
• M25: 38,245,444 km (0.062 R)
• M26: 38,712,787 km (0.115 R)
• M27: 43,766,802 km (0.085 R)
• M28: 46,539,748 km (0.091 R)
• M29: 52,241,222 km (0.099 R)
• M30: 55,358,243 km (0.114 R)
• M31: 61,532,746 km (0.084 R)
• M32: 65,671,670 km (0.113 R)
• M33: 67,922,819 km (0.11 R)
• M34: 80,462,711 km (0.109 R)
• M35: 85,403,928 km (0.062 R)
• M36: 85,669,465 km (0.096 R)
• M37: 87,005,374 km (0.088 R)
• M38: 87,813,501 km (0.08 R)
• M39: 89,444,866 km (0.108 R)
• M40: 95,028,457 km (0.054 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 488 - 12,641 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit