🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.07

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.86 AU - 0.9 AU

Year: 303 Days

Day: 24.6 Hours

Environment

Temp: 144 °C

Axial Tilt: 3.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.27 AU - 1.51 AU

Year: 602 Days

Day: 35.4 Hours

Environment

Temp: -38 °C

Axial Tilt: 1.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.61 AU - 2.09 AU

Year: 924 Days

Day: 14 Hours

Environment

Temp: -66 °C

Axial Tilt: 21.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.17 AU - 3.29 AU

Year: 1656 Days

Day: 14.8 Hours

Environment

Temp: -104 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 64,288,269 km

• M1: 1,136,046 km (0.11 R)
• M2: 1,943,426 km (0.086 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.87

Radius: 0.95

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.26 AU - 3.62 AU

Year: 1851 Days

Day: 48 Hours

Environment

Temp: -102 °C

Axial Tilt: 9.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.74 AU - 4.02 AU

Year: 2281 Days

Day: 14.7 Hours

Environment

Temp: -107 °C

Axial Tilt: 16.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.5 AU - 4.22 AU

Year: 2784 Days

Day: 39.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 3.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.82 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 7.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.4

Radius: 10.2

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 7.69 AU - 7.87 AU

Year: 7966 Days

Day: 10.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 64,288,269 km

• M1: 131,497 km (0.106 R)
• M2: 356,492 km (0.083 R)
• M3: 733,030 km (0.052 R)
• M4: 842,685 km (0.107 R)
• M5: 1,030,281 km (0.096 R)
• M6: 1,154,746 km (0.12 R)
• M7: 2,204,923 km (0.087 R)
• M8: 2,624,994 km (0.12 R)
• M9: 3,240,140 km (0.1 R)
• M10: 3,450,774 km (0.059 R)
• M11: 3,898,820 km (0.115 R)
• M12: 4,017,002 km (0.111 R)
• M13: 4,529,225 km (0.115 R)
• M14: 4,751,228 km (0.114 R)
• M15: 4,991,034 km (0.093 R)
• M16: 5,076,604 km (0.078 R)
• M17: 5,541,255 km (0.112 R)
• M18: 6,019,818 km (0.114 R)
• M19: 6,793,838 km (0.088 R)
• M20: 7,128,339 km (0.115 R)
• M21: 7,322,068 km (0.096 R)
• M22: 7,403,150 km (0.084 R)
• M23: 7,797,041 km (0.114 R)
• M24: 8,197,814 km (0.048 R)
• M25: 8,673,834 km (0.053 R)
• M26: 8,776,907 km (0.062 R)
• M27: 9,001,902 km (0.119 R)
• M28: 9,316,507 km (0.094 R)
• M29: 9,439,925 km (0.103 R)
• M30: 10,028,742 km (0.111 R)
• M31: 10,155,152 km (0.08 R)
• M32: 10,980,783 km (0.098 R)
• M33: 12,037,991 km (0.117 R)
• M34: 12,230,224 km (0.093 R)
• M35: 12,871,700 km (0.117 R)
• M36: 13,186,753 km (0.094 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.5

Radius: 10.5

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 10.16 AU - 12.82 AU

Year: 14297 Days

Day: 9.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 64,288,269 km

• M1: 285,582 km (0.104 R)
• M2: 515,215 km (0.118 R)
• M3: 702,661 km (0.115 R)
• M4: 805,285 km (0.089 R)
• M5: 913,445 km (0.072 R)
• M6: 1,003,652 km (0.039 R)
• M7: 1,268,291 km (0.117 R)
• M8: 1,582,297 km (0.116 R)
• M9: 2,009,249 km (0.045 R)
• M10: 2,159,445 km (0.081 R)
• M11: 2,471,207 km (0.098 R)
• M12: 3,636,425 km (0.051 R)
• M13: 4,747,189 km (0.118 R)
• M14: 4,827,374 km (0.088 R)
• M15: 4,948,698 km (0.104 R)
• M16: 5,071,069 km (0.075 R)
• M17: 5,998,575 km (0.07 R)
• M18: 6,129,174 km (0.113 R)
• M19: 6,437,496 km (0.077 R)
• M20: 6,796,082 km (0.068 R)
• M21: 8,150,242 km (0.082 R)
• M22: 9,636,347 km (0.083 R)
• M23: 9,738,373 km (0.105 R)
• M24: 10,201,976 km (0.1 R)
• M25: 10,515,085 km (0.085 R)
• M26: 10,990,656 km (0.119 R)
• M27: 11,473,259 km (0.115 R)
• M28: 13,188,099 km (0.119 R)
• M29: 13,301,495 km (0.102 R)
• M30: 13,643,625 km (0.039 R)
• M31: 15,636,418 km (0.05 R)
• M32: 16,666,549 km (0.088 R)
• M33: 16,789,219 km (0.116 R)
• M34: 17,220,809 km (0.088 R)
• M35: 17,469,142 km (0.057 R)
• M36: 17,718,671 km (0.055 R)
• M37: 18,095,059 km (0.073 R)
• M38: 18,410,711 km (0.11 R)
• M39: 18,792,036 km (0.101 R)
• M40: 19,175,904 km (0.028 R)
• M41: 19,368,885 km (0.107 R)
• M42: 19,627,091 km (0.078 R)
• M43: 19,951,419 km (0.117 R)
• M44: 21,800,748 km (0.087 R)
• M45: 21,934,937 km (0.113 R)
• M46: 22,204,064 km (0.029 R)
• M47: 22,677,840 km (0.045 R)
• M48: 22,813,675 km (0.107 R)
• M49: 23,635,267 km (0.062 R)
• M50: 24,118,917 km (0.031 R)
• M51: 24,466,433 km (0.103 R)
• M52: 24,605,858 km (0.105 R)
• M53: 26,873,014 km (0.032 R)
• M54: 28,910,836 km (0.112 R)
• M55: 29,873,797 km (0.107 R)
• M56: 31,300,213 km (0.107 R)
• M57: 31,527,452 km (0.033 R)
• M58: 33,597,139 km (0.09 R)
• M59: 34,374,748 km (0.066 R)
• M60: 34,687,557 km (0.104 R)
• M61: 35,237,180 km (0.109 R)
• M62: 35,394,707 km (0.065 R)
• M63: 35,473,545 km (0.075 R)
• M64: 35,552,383 km (0.094 R)
• M65: 37,063,022 km (0.062 R)
• M66: 37,143,057 km (0.091 R)
• M67: 37,705,246 km (0.095 R)
• M68: 38,189,494 km (0.091 R)
• M69: 40,475,798 km (0.112 R)
• M70: 41,386,251 km (0.112 R)
• M71: 42,303,286 km (0.068 R)
• M72: 43,649,218 km (0.043 R)
• M73: 43,733,741 km (0.096 R)
• M74: 45,351,193 km (0.111 R)
• M75: 47,770,340 km (0.07 R)
• M76: 47,944,771 km (0.117 R)
• M77: 48,031,987 km (0.11 R)
• M78: 48,119,352 km (0.104 R)
• M79: 48,294,232 km (0.06 R)
• M80: 48,644,440 km (0.11 R)
• M81: 49,259,437 km (0.119 R)
• M82: 49,877,127 km (0.036 R)
• M83: 50,674,932 km (0.086 R)
• M84: 50,763,793 km (0.061 R)
• M85: 51,298,307 km (0.117 R)
• M86: 54,453,475 km (0.102 R)
• M87: 55,000,704 km (0.108 R)
• M88: 56,008,545 km (0.061 R)
• M89: 56,100,548 km (0.037 R)
• M90: 59,349,664 km (0.096 R)
• M91: 60,006,698 km (0.03 R)
• M92: 61,992,460 km (0.117 R)
• M93: 63,999,764 km (0.064 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 345 - 18,978 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit