🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.55 AU - 0.57 AU

Year: 154 Days

Day: 45.7 Hours

Environment

Temp: 229 °C

Axial Tilt: 22.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.95 AU - 1.05 AU

Year: 367 Days

Day: 37.6 Hours

Environment

Temp: 16 °C

Axial Tilt: 23.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.14 AU - 1.54 AU

Year: 569 Days

Day: 35.3 Hours

Environment

Temp: -16 °C

Axial Tilt: 16.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 79,934,173 km

• M1: 92,302 km (0.111 R)
• M2: 201,508 km (0.087 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.84

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.19 AU - 1.51 AU

Year: 576 Days

Day: 39 Hours

Environment

Temp: -8 °C

Axial Tilt: 39.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.33 AU - 2.07 AU

Year: 814 Days

Day: 32.6 Hours

Environment

Temp: -62 °C

Axial Tilt: 37.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.61 AU - 2.65 AU

Year: 1141 Days

Day: 32.2 Hours

Environment

Temp: -69 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 9.98 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 17.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 416.6

Radius: 5.7

Gravity: 12.82 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 16.84 AU - 18.8 AU

Year: 27614 Days

Day: 21.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 79,934,173 km

• M1: 108,010 km (0.058 R)
• M2: 313,856 km (0.094 R)
• M3: 2,263,266 km (0.106 R)
• M4: 2,483,624 km (0.09 R)
• M5: 2,521,023 km (0.082 R)
• M6: 2,672,566 km (0.101 R)
• M7: 2,710,863 km (0.059 R)
• M8: 2,827,101 km (0.085 R)
• M9: 2,905,490 km (0.098 R)
• M10: 3,600,372 km (0.067 R)
• M11: 3,685,493 km (0.045 R)
• M12: 4,076,392 km (0.061 R)
• M13: 4,209,684 km (0.086 R)
• M14: 4,480,456 km (0.107 R)
• M15: 4,710,538 km (0.079 R)
• M16: 4,757,063 km (0.108 R)
• M17: 4,991,632 km (0.097 R)
• M18: 5,472,290 km (0.107 R)
• M19: 6,119,151 km (0.076 R)
• M20: 6,632,870 km (0.104 R)
• M21: 7,429,479 km (0.085 R)
• M22: 7,811,402 km (0.07 R)
• M23: 9,637,394 km (0.093 R)
• M24: 10,781,070 km (0.072 R)
• M25: 11,650,981 km (0.09 R)
• M26: 14,799,568 km (0.091 R)
• M27: 16,466,088 km (0.074 R)
• M28: 17,249,532 km (0.05 R)
• M29: 19,074,776 km (0.108 R)
• M30: 19,671,821 km (0.117 R)
• M31: 20,123,606 km (0.085 R)
• M32: 20,274,850 km (0.091 R)
• M33: 20,654,828 km (0.12 R)
• M34: 21,653,843 km (0.095 R)
• M35: 22,354,709 km (0.114 R)
• M36: 27,129,275 km (0.113 R)
• M37: 27,463,925 km (0.077 R)
• M38: 27,884,295 km (0.071 R)
• M39: 28,053,042 km (0.087 R)
• M40: 28,222,087 km (0.1 R)
• M41: 28,901,860 km (0.072 R)
• M42: 29,415,130 km (0.119 R)
• M43: 29,672,887 km (0.109 R)
• M44: 30,190,795 km (0.09 R)
• M45: 30,450,796 km (0.085 R)
• M46: 30,973,042 km (0.075 R)
• M47: 31,235,287 km (0.043 R)
• M48: 31,850,135 km (0.049 R)
• M49: 32,114,773 km (0.09 R)
• M50: 32,557,583 km (0.099 R)
• M51: 32,913,327 km (0.095 R)
• M52: 33,808,072 km (0.104 R)
• M53: 34,529,732 km (0.077 R)
• M54: 35,074,268 km (0.101 R)
• M55: 36,724,931 km (0.079 R)
• M56: 37,559,837 km (0.118 R)
• M57: 37,839,435 km (0.092 R)
• M58: 39,248,049 km (0.093 R)
• M59: 39,911,216 km (0.106 R)
• M60: 40,578,123 km (0.07 R)
• M61: 41,248,770 km (0.092 R)
• M62: 42,019,648 km (0.108 R)
• M63: 42,213,078 km (0.063 R)
• M64: 45,745,682 km (0.08 R)
• M65: 46,143,912 km (0.066 R)
• M66: 46,843,731 km (0.105 R)
• M67: 47,950,605 km (0.099 R)
• M68: 49,066,007 km (0.046 R)
• M69: 49,269,760 km (0.054 R)
• M70: 49,678,012 km (0.109 R)
• M71: 49,882,662 km (0.084 R)
• M72: 50,600,732 km (0.073 R)
• M73: 50,806,578 km (0.067 R)
• M74: 51,115,797 km (0.069 R)
• M75: 52,880,155 km (0.034 R)
• M76: 54,032,357 km (0.109 R)
• M77: 55,510,683 km (0.058 R)
• M78: 56,574,773 km (0.11 R)
• M79: 58,291,259 km (0.09 R)
• M80: 59,807,134 km (0.076 R)
• M81: 61,226,369 km (0.081 R)
• M82: 64,990,252 km (0.104 R)
• M83: 65,774,444 km (0.081 R)
• M84: 66,336,483 km (0.119 R)
• M85: 67,465,349 km (0.061 R)
• M86: 68,259,414 km (0.087 R)
• M87: 68,714,491 km (0.099 R)
• M88: 69,056,471 km (0.082 R)
• M89: 69,284,758 km (0.093 R)
• M90: 74,604,458 km (0.1 R)
• M91: 77,076,413 km (0.114 R)
• M92: 78,262,874 km (0.103 R)
• M93: 78,620,114 km (0.118 R)
• M94: 78,739,194 km (0.104 R)
• M95: 79,216,411 km (0.058 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 229 - 12,136 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit