🌌 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: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.61 AU - 0.69 AU

Year: 184 Days

Day: 19.2 Hours

Environment

Temp: 177 °C

Axial Tilt: 4.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.65 AU - 1.01 AU

Year: 266 Days

Day: 31.2 Hours

Environment

Temp: 199 °C

Axial Tilt: 15.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.82 AU - 1.16 AU

Year: 346 Days

Day: 21.6 Hours

Environment

Temp: 136 °C

Axial Tilt: 18.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.41 AU - 1.55 AU

Year: 633 Days

Day: 34.9 Hours

Environment

Temp: -14 °C

Axial Tilt: 44.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 71,300,274 km

• M1: 78,090 km (0.077 R)
• M2: 620,981 km (0.073 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.2 AU - 1.84 AU

Year: 659 Days

Day: 39.2 Hours

Environment

Temp: 5 °C

Axial Tilt: 21.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 71,300,274 km

• M1: 351,854 km (0.107 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 2.29 AU - 3.01 AU

Year: 1516 Days

Day: 18.5 Hours

Environment

Temp: -77 °C

Axial Tilt: 2.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.33 AU - 3.39 AU

Year: 2165 Days

Day: 40.8 Hours

Environment

Temp: -104 °C

Axial Tilt: 41.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 71,300,274 km

• M1: 623,075 km (0.11 R)
• M2: 1,743,563 km (0.064 R)

Planet 8 - Terrestrial

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.39 AU - 5.57 AU

Year: 3333 Days

Day: 38.7 Hours

Environment

Temp: -120 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.8

Radius: 13.4

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 5.29 AU - 5.79 AU

Year: 4583 Days

Day: 6.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,300,274 km

• M1: 299,495 km (0.119 R)
• M2: 542,292 km (0.079 R)
• M3: 781,499 km (0.108 R)
• M4: 1,092,064 km (0.1 R)
• M5: 1,364,781 km (0.105 R)
• M6: 1,993,541 km (0.108 R)
• M7: 2,367,685 km (0.087 R)
• M8: 3,255,848 km (0.076 R)
• M9: 3,458,104 km (0.03 R)
• M10: 4,089,856 km (0.118 R)
• M11: 5,036,661 km (0.08 R)
• M12: 5,221,714 km (0.082 R)
• M13: 5,371,312 km (0.062 R)
• M14: 5,636,698 km (0.055 R)
• M15: 6,299,118 km (0.109 R)
• M16: 6,836,174 km (0.116 R)
• M17: 8,257,054 km (0.059 R)
• M18: 8,549,219 km (0.072 R)
• M19: 8,637,482 km (0.1 R)
• M20: 9,203,710 km (0.026 R)
• M21: 9,552,273 km (0.112 R)
• M22: 10,435,050 km (0.072 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 702.1

Radius: 6.2

Gravity: 18.26 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 11.8 AU - 15.7 AU

Year: 17920 Days

Day: 20.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 71,300,274 km

• M1: 137,929 km (0.107 R)
• M2: 309,518 km (0.111 R)
• M3: 393,143 km (0.047 R)
• M4: 584,030 km (0.098 R)
• M5: 779,854 km (0.089 R)
• M6: 1,424,471 km (0.12 R)
• M7: 1,481,917 km (0.057 R)
• M8: 1,749,547 km (0.104 R)
• M9: 3,300,578 km (0.066 R)
• M10: 4,050,362 km (0.03 R)
• M11: 6,304,653 km (0.047 R)
• M12: 6,352,225 km (0.059 R)
• M13: 6,495,390 km (0.095 R)
• M14: 6,736,243 km (0.059 R)
• M15: 7,029,305 km (0.076 R)
• M16: 7,426,637 km (0.093 R)
• M17: 9,087,023 km (0.061 R)
• M18: 9,519,511 km (0.109 R)
• M19: 9,628,568 km (0.046 R)
• M20: 10,404,382 km (0.035 R)
• M21: 10,742,922 km (0.106 R)
• M22: 10,799,769 km (0.062 R)
• M23: 10,856,617 km (0.12 R)
• M24: 11,257,539 km (0.081 R)
• M25: 11,315,284 km (0.027 R)
• M26: 13,090,861 km (0.056 R)
• M27: 13,701,819 km (0.071 R)
• M28: 14,135,054 km (0.108 R)
• M29: 15,269,455 km (0.077 R)
• M30: 16,106,754 km (0.107 R)
• M31: 16,302,129 km (0.076 R)
• M32: 16,432,728 km (0.104 R)
• M33: 16,760,945 km (0.045 R)
• M34: 17,224,100 km (0.037 R)
• M35: 17,357,243 km (0.103 R)
• M36: 18,366,280 km (0.04 R)
• M37: 18,638,548 km (0.03 R)
• M38: 18,706,765 km (0.103 R)
• M39: 19,187,124 km (0.095 R)
• M40: 19,394,167 km (0.09 R)
• M41: 19,463,431 km (0.051 R)
• M42: 20,652,285 km (0.091 R)
• M43: 20,935,474 km (0.101 R)
• M44: 24,956,665 km (0.116 R)
• M45: 25,032,062 km (0.104 R)
• M46: 27,092,922 km (0.108 R)
• M47: 27,325,248 km (0.094 R)
• M48: 28,104,503 km (0.094 R)
• M49: 28,418,210 km (0.065 R)
• M50: 28,575,587 km (0.091 R)
• M51: 29,844,326 km (0.101 R)
• M52: 30,888,819 km (0.114 R)
• M53: 31,131,466 km (0.109 R)
• M54: 31,374,862 km (0.103 R)
• M55: 32,190,619 km (0.117 R)
• M56: 32,436,708 km (0.041 R)
• M57: 32,848,252 km (0.091 R)
• M58: 33,261,441 km (0.107 R)
• M59: 34,009,580 km (0.066 R)
• M60: 34,595,405 km (0.039 R)
• M61: 34,847,478 km (0.116 R)
• M62: 35,692,107 km (0.117 R)
• M63: 36,971,468 km (0.12 R)
• M64: 38,700,820 km (0.078 R)
• M65: 39,137,197 km (0.113 R)
• M66: 41,432,776 km (0.093 R)
• M67: 42,237,463 km (0.109 R)
• M68: 43,228,100 km (0.042 R)
• M69: 43,953,350 km (0.091 R)
• M70: 44,317,472 km (0.096 R)
• M71: 45,232,113 km (0.106 R)
• M72: 45,599,675 km (0.114 R)
• M73: 45,691,827 km (0.113 R)
• M74: 46,615,744 km (0.097 R)
• M75: 46,801,245 km (0.06 R)
• M76: 47,545,943 km (0.105 R)
• M77: 50,944,657 km (0.117 R)
• M78: 54,518,700 km (0.113 R)
• M79: 55,301,994 km (0.069 R)
• M80: 55,498,416 km (0.082 R)
• M81: 55,695,138 km (0.09 R)
• M82: 56,286,348 km (0.114 R)
• M83: 56,780,769 km (0.038 R)
• M84: 59,374,647 km (0.101 R)
• M85: 59,877,745 km (0.082 R)
• M86: 63,337,046 km (0.096 R)
• M87: 64,676,844 km (0.118 R)
• M88: 65,090,931 km (0.081 R)
• M89: 69,174,355 km (0.044 R)
• M90: 70,022,126 km (0.08 R)
• M91: 70,873,338 km (0.088 R)
• M92: 70,980,001 km (0.095 R)
• M93: 71,086,664 km (0.119 R)

Kuiper Belt

Range: 31.2 - 57.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 12,525 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit