🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.68 AU - 0.74 AU

Year: 208 Days

Day: 43.1 Hours

Environment

Temp: 186 °C

Axial Tilt: 13.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.04 AU - 1.4 AU

Year: 469 Days

Day: 15 Hours

Environment

Temp: 38 °C

Axial Tilt: 35.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.02

Radius: 1.32

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.03 AU - 1.59 AU

Year: 522 Days

Day: 29.5 Hours

Environment

Temp: 5 °C

Axial Tilt: 1.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.87

Radius: 0.95

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.4 AU - 1.62 AU

Year: 646 Days

Day: 14.9 Hours

Environment

Temp: -1 °C

Axial Tilt: 28.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.53 AU - 1.57 AU

Year: 672 Days

Day: 16.6 Hours

Environment

Temp: -14 °C

Axial Tilt: 43.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 70,233,963 km

• M1: 762,052 km (0.115 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.43

Radius: 0.71

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.59 AU - 1.85 AU

Year: 786 Days

Day: 36.9 Hours

Environment

Temp: -25 °C

Axial Tilt: 24 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,233,963 km

• M1: 156,779 km (0.082 R)

Asteroid Belt

Center: 10.68 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 19.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234.9

Radius: 8

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 18.51 AU - 20.75 AU

Year: 30288 Days

Day: 22.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 70,233,963 km

• M1: 180,415 km (0.047 R)
• M2: 1,130,212 km (0.111 R)
• M3: 1,539,960 km (0.09 R)
• M4: 2,218,237 km (0.065 R)
• M5: 2,284,210 km (0.079 R)
• M6: 2,906,238 km (0.099 R)
• M7: 3,578,381 km (0.064 R)
• M8: 3,852,295 km (0.052 R)
• M9: 4,052,307 km (0.117 R)
• M10: 5,589,874 km (0.093 R)
• M11: 5,725,559 km (0.087 R)
• M12: 6,046,148 km (0.09 R)
• M13: 6,609,234 km (0.118 R)
• M14: 6,752,698 km (0.112 R)
• M15: 6,994,000 km (0.114 R)
• M16: 7,485,129 km (0.087 R)
• M17: 7,734,958 km (0.064 R)
• M18: 7,987,479 km (0.06 R)
• M19: 8,242,693 km (0.111 R)
• M20: 8,761,349 km (0.061 R)
• M21: 9,829,926 km (0.115 R)
• M22: 10,158,593 km (0.105 R)
• M23: 10,435,199 km (0.071 R)
• M24: 10,995,743 km (0.092 R)
• M25: 11,222,832 km (0.059 R)
• M26: 11,279,829 km (0.119 R)
• M27: 11,566,159 km (0.076 R)
• M28: 11,913,077 km (0.091 R)
• M29: 12,029,464 km (0.052 R)
• M30: 12,795,255 km (0.076 R)
• M31: 13,034,014 km (0.119 R)
• M32: 15,122,400 km (0.074 R)
• M33: 15,438,351 km (0.089 R)
• M34: 15,692,517 km (0.114 R)
• M35: 16,140,713 km (0.098 R)
• M36: 16,334,143 km (0.112 R)
• M37: 17,312,662 km (0.077 R)
• M38: 18,511,689 km (0.071 R)
• M39: 18,849,631 km (0.047 R)
• M40: 19,121,301 km (0.096 R)
• M41: 19,462,833 km (0.101 R)
• M42: 19,944,388 km (0.087 R)
• M43: 20,221,294 km (0.09 R)
• M44: 20,429,684 km (0.105 R)
• M45: 21,483,002 km (0.114 R)
• M46: 22,625,780 km (0.12 R)
• M47: 23,277,279 km (0.078 R)
• M48: 24,155,568 km (0.104 R)
• M49: 24,450,725 km (0.081 R)
• M50: 25,793,814 km (0.108 R)
• M51: 25,944,460 km (0.114 R)
• M52: 26,550,181 km (0.078 R)
• M53: 27,313,878 km (0.116 R)
• M54: 28,395,172 km (0.057 R)
• M55: 30,122,429 km (0.103 R)
• M56: 30,281,152 km (0.092 R)
• M57: 30,679,232 km (0.077 R)
• M58: 31,239,327 km (0.102 R)
• M59: 31,964,427 km (0.103 R)
• M60: 33,349,105 km (0.084 R)
• M61: 33,760,051 km (0.091 R)
• M62: 34,090,064 km (0.073 R)
• M63: 34,172,791 km (0.065 R)
• M64: 34,255,519 km (0.118 R)
• M65: 35,756,135 km (0.09 R)
• M66: 35,924,283 km (0.107 R)
• M67: 37,875,638 km (0.099 R)
• M68: 38,821,096 km (0.077 R)
• M69: 41,174,570 km (0.114 R)
• M70: 41,880,672 km (0.051 R)
• M71: 42,235,368 km (0.094 R)
• M72: 44,473,951 km (0.065 R)
• M73: 45,198,453 km (0.117 R)
• M74: 49,158,758 km (0.11 R)
• M75: 49,532,753 km (0.059 R)
• M76: 49,813,847 km (0.082 R)
• M77: 50,001,592 km (0.074 R)
• M78: 51,038,306 km (0.098 R)
• M79: 52,749,855 km (0.059 R)
• M80: 53,901,310 km (0.117 R)
• M81: 53,997,651 km (0.117 R)
• M82: 55,061,142 km (0.084 R)
• M83: 56,816,224 km (0.052 R)
• M84: 57,012,347 km (0.072 R)
• M85: 57,405,341 km (0.037 R)
• M86: 58,193,871 km (0.054 R)
• M87: 61,082,606 km (0.041 R)
• M88: 61,585,255 km (0.082 R)
• M89: 61,786,763 km (0.084 R)
• M90: 61,988,421 km (0.085 R)
• M91: 62,696,168 km (0.101 R)
• M92: 63,508,186 km (0.059 R)
• M93: 64,119,592 km (0.096 R)
• M94: 65,862,258 km (0.091 R)
• M95: 70,023,622 km (0.103 R)

Kuiper Belt

Range: 31.5 - 46.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 267 - 16,420 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit