🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.82

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.43 AU - 0.61 AU

Year: 139 Days

Day: 33.1 Hours

Environment

Temp: 173 °C

Axial Tilt: 19.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.85 AU - 0.91 AU

Year: 306 Days

Day: 34.3 Hours

Environment

Temp: 107 °C

Axial Tilt: 15.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 33,730,952 km

• M1: 83,027 km (0.038 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.35 AU - 1.91 AU

Year: 772 Days

Day: 25.6 Hours

Environment

Temp: -56 °C

Axial Tilt: 8.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,730,952 km

• M1: 802,593 km (0.095 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.62 AU - 2.08 AU

Year: 933 Days

Day: 32.4 Hours

Environment

Temp: -54 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.01

Radius: 1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.41 AU - 3.59 AU

Year: 2428 Days

Day: 32.3 Hours

Environment

Temp: -126 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.3

Radius: 13.7

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 4.86 AU - 7.3 AU

Year: 5560 Days

Day: 5.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,730,952 km

• M1: 170,542 km (0.098 R)
• M2: 612,454 km (0.034 R)
• M3: 1,075,758 km (0.06 R)
• M4: 1,860,250 km (0.059 R)
• M5: 2,351,828 km (0.059 R)
• M6: 2,877,216 km (0.082 R)
• M7: 3,792,456 km (0.107 R)
• M8: 4,448,891 km (0.031 R)
• M9: 4,893,646 km (0.093 R)
• M10: 7,278,236 km (0.112 R)
• M11: 8,113,590 km (0.093 R)
• M12: 10,269,595 km (0.071 R)
• M13: 13,586,778 km (0.111 R)
• M14: 15,911,379 km (0.118 R)
• M15: 17,621,732 km (0.048 R)
• M16: 18,301,654 km (0.114 R)
• M17: 21,475,074 km (0.102 R)
• M18: 23,412,964 km (0.107 R)
• M19: 27,305,202 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166

Radius: 12.8

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 8.78 AU - 10.04 AU

Year: 10705 Days

Day: 11.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,730,952 km

• M1: 170,841 km (0.116 R)
• M2: 693,536 km (0.059 R)
• M3: 1,159,683 km (0.119 R)
• M4: 1,786,797 km (0.101 R)
• M5: 2,210,757 km (0.102 R)
• M6: 2,994,351 km (0.116 R)
• M7: 3,643,307 km (0.099 R)
• M8: 4,310,812 km (0.085 R)
• M9: 6,324,549 km (0.092 R)
• M10: 7,186,682 km (0.111 R)
• M11: 12,513,263 km (0.093 R)
• M12: 17,566,380 km (0.079 R)
• M13: 19,742,730 km (0.091 R)
• M14: 23,297,624 km (0.114 R)
• M15: 23,994,002 km (0.084 R)
• M16: 24,624,707 km (0.084 R)
• M17: 26,750,942 km (0.084 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.4

Radius: 8.4

Gravity: 11.26 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 8.84 AU - 10.9 AU

Year: 11500 Days

Day: 14.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 33,730,952 km

• M1: 105,616 km (0.069 R)
• M2: 426,204 km (0.106 R)
• M3: 716,275 km (0.077 R)
• M4: 1,096,702 km (0.109 R)
• M5: 1,594,115 km (0.1 R)
• M6: 2,990,611 km (0.047 R)
• M7: 4,309,915 km (0.103 R)
• M8: 5,370,264 km (0.083 R)
• M9: 6,359,854 km (0.102 R)
• M10: 7,380,112 km (0.055 R)
• M11: 7,684,394 km (0.098 R)
• M12: 7,951,875 km (0.08 R)
• M13: 8,937,575 km (0.078 R)
• M14: 10,980,783 km (0.119 R)
• M15: 12,141,064 km (0.114 R)
• M16: 12,504,587 km (0.105 R)
• M17: 12,937,822 km (0.093 R)
• M18: 14,432,155 km (0.071 R)
• M19: 15,965,982 km (0.086 R)
• M20: 17,528,831 km (0.028 R)
• M21: 17,837,601 km (0.032 R)
• M22: 21,921,922 km (0.037 R)
• M23: 27,203,026 km (0.116 R)
• M24: 29,971,185 km (0.032 R)
• M25: 31,423,332 km (0.111 R)
• M26: 31,879,456 km (0.081 R)
• M27: 32,688,182 km (0.05 R)
• M28: 39,393,308 km (0.12 R)
• M29: 41,543,179 km (0.106 R)
• M30: 42,786,337 km (0.089 R)
• M31: 46,812,166 km (0.083 R)
• M32: 47,706,462 km (0.085 R)
• M33: 48,007,153 km (0.06 R)
• M34: 55,275,964 km (0.047 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 338.6

Radius: 6.9

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 14.23 AU - 15.91 AU

Year: 21696 Days

Day: 23.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 33,730,952 km

• M1: 85,869 km (0.081 R)
• M2: 326,572 km (0.098 R)
• M3: 632,201 km (0.086 R)
• M4: 1,600,996 km (0.087 R)
• M5: 1,939,088 km (0.056 R)
• M6: 2,283,462 km (0.044 R)
• M7: 4,084,770 km (0.052 R)
• M8: 4,852,656 km (0.105 R)
• M9: 7,277,488 km (0.091 R)
• M10: 8,450,485 km (0.079 R)
• M11: 12,144,505 km (0.112 R)
• M12: 12,849,859 km (0.095 R)
• M13: 20,384,206 km (0.104 R)
• M14: 22,123,281 km (0.067 R)
• M15: 30,769,290 km (0.073 R)
• M16: 35,962,431 km (0.112 R)
• M17: 38,902,477 km (0.075 R)
• M18: 40,430,769 km (0.078 R)
• M19: 42,433,436 km (0.105 R)
• M20: 43,903,684 km (0.099 R)
• M21: 51,436,086 km (0.107 R)
• M22: 53,106,795 km (0.12 R)
• M23: 53,614,979 km (0.114 R)
• M24: 55,680,178 km (0.117 R)
• M25: 56,732,300 km (0.096 R)
• M26: 60,704,123 km (0.102 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 26.5

Radius: 6.8

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 14.89 AU - 22.53 AU

Year: 30013 Days

Day: 16.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,730,952 km

• M1: 90,208 km (0.115 R)
• M2: 462,706 km (0.041 R)
• M3: 776,712 km (0.094 R)
• M4: 1,315,863 km (0.119 R)
• M5: 1,577,210 km (0.087 R)
• M6: 2,437,548 km (0.084 R)
• M7: 3,150,531 km (0.12 R)
• M8: 6,683,434 km (0.091 R)
• M9: 7,172,021 km (0.117 R)
• M10: 12,959,664 km (0.084 R)
• M11: 14,912,963 km (0.068 R)
• M12: 17,636,542 km (0.065 R)
• M13: 18,231,792 km (0.099 R)
• M14: 23,884,198 km (0.11 R)
• M15: 26,455,785 km (0.116 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 14,507 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit