🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.69 AU - 0.99 AU

Year: 295 Days

Day: 38.2 Hours

Environment

Temp: 45 °C

Axial Tilt: 19.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.9 AU - 1.16 AU

Year: 400 Days

Day: 28.2 Hours

Environment

Temp: -10 °C

Axial Tilt: 24.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.4

Radius: 0.69

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.54 AU - 1.66 AU

Year: 775 Days

Day: 35.2 Hours

Environment

Temp: -68 °C

Axial Tilt: 27 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,279,079 km

• M1: 677,529 km (0.049 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.91 AU - 3.71 AU

Year: 2306 Days

Day: 28 Hours

Environment

Temp: -130 °C

Axial Tilt: 27 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 2.95 AU - 4.55 AU

Year: 2780 Days

Day: 33.5 Hours

Environment

Temp: -124 °C

Axial Tilt: 24.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 9.52 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 15.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 785.2

Radius: 4.8

Gravity: 34.08 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 12.52 AU - 18.06 AU

Year: 22892 Days

Day: 15.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (99)

Outer Limit: 52,279,079 km

• M1: 100,231 km (0.115 R)
• M2: 343,776 km (0.117 R)
• M3: 467,643 km (0.038 R)
• M4: 1,275,920 km (0.07 R)
• M5: 1,436,588 km (0.065 R)
• M6: 1,672,355 km (0.101 R)
• M7: 1,920,089 km (0.056 R)
• M8: 2,141,793 km (0.074 R)
• M9: 2,179,491 km (0.118 R)
• M10: 2,255,637 km (0.073 R)
• M11: 2,410,620 km (0.115 R)
• M12: 3,236,400 km (0.034 R)
• M13: 3,367,298 km (0.1 R)
• M14: 4,330,858 km (0.119 R)
• M15: 5,017,363 km (0.057 R)
• M16: 5,684,719 km (0.084 R)
• M17: 5,842,694 km (0.047 R)
• M18: 6,653,964 km (0.114 R)
• M19: 6,764,816 km (0.091 R)
• M20: 6,820,466 km (0.105 R)
• M21: 6,932,216 km (0.056 R)
• M22: 7,271,055 km (0.109 R)
• M23: 7,328,052 km (0.119 R)
• M24: 8,260,196 km (0.083 R)
• M25: 8,679,668 km (0.076 R)
• M26: 9,915,945 km (0.08 R)
• M27: 11,074,730 km (0.101 R)
• M28: 11,736,851 km (0.112 R)
• M29: 11,870,890 km (0.118 R)
• M30: 12,072,698 km (0.1 R)
• M31: 13,307,778 km (0.073 R)
• M32: 13,657,986 km (0.076 R)
• M33: 14,082,096 km (0.044 R)
• M34: 14,153,305 km (0.026 R)
• M35: 15,895,671 km (0.105 R)
• M36: 17,704,459 km (0.112 R)
• M37: 18,089,375 km (0.078 R)
• M38: 18,554,923 km (0.106 R)
• M39: 20,135,275 km (0.059 R)
• M40: 21,840,392 km (0.089 R)
• M41: 22,918,992 km (0.051 R)
• M42: 24,014,797 km (0.093 R)
• M43: 24,184,889 km (0.101 R)
• M44: 24,526,272 km (0.075 R)
• M45: 26,169,455 km (0.12 R)
• M46: 26,256,969 km (0.074 R)
• M47: 29,469,883 km (0.114 R)
• M48: 29,560,988 km (0.104 R)
• M49: 30,017,411 km (0.113 R)
• M50: 30,476,228 km (0.085 R)
• M51: 31,122,341 km (0.106 R)
• M52: 31,586,693 km (0.077 R)
• M53: 32,428,181 km (0.11 R)
• M54: 32,993,212 km (0.079 R)
• M55: 33,561,684 km (0.1 R)
• M56: 35,285,949 km (0.105 R)
• M57: 37,333,944 km (0.096 R)
• M58: 37,629,699 km (0.098 R)
• M59: 39,721,227 km (0.093 R)
• M60: 40,022,966 km (0.051 R)
• M61: 40,831,692 km (0.104 R)
• M62: 42,465,151 km (0.106 R)
• M63: 43,289,884 km (0.045 R)
• M64: 44,224,123 km (0.049 R)
• M65: 44,955,207 km (0.073 R)
• M66: 47,066,033 km (0.09 R)
• M67: 49,209,023 km (0.112 R)
• M68: 51,164,716 km (0.066 R)
• M69: 52,592,927 km (0.027 R)
• M70: 53,034,988 km (0.104 R)
• M71: 53,589,248 km (0.077 R)
• M72: 55,263,697 km (0.098 R)
• M73: 55,375,896 km (0.101 R)
• M74: 56,502,517 km (0.087 R)
• M75: 56,841,955 km (0.114 R)
• M76: 59,581,840 km (0.083 R)
• M77: 59,812,071 km (0.119 R)
• M78: 60,851,926 km (0.09 R)
• M79: 61,432,216 km (0.117 R)
• M80: 61,548,454 km (0.08 R)
• M81: 62,247,674 km (0.079 R)
• M82: 62,598,182 km (0.092 R)
• M83: 65,901,752 km (0.111 R)
• M84: 66,020,831 km (0.106 R)
• M85: 66,975,565 km (0.109 R)
• M86: 68,536,768 km (0.114 R)
• M87: 69,261,421 km (0.088 R)
• M88: 71,572,857 km (0.111 R)
• M89: 72,799,410 km (0.09 R)
• M90: 73,168,767 km (0.084 R)
• M91: 75,024,828 km (0.093 R)
• M92: 76,771,084 km (0.09 R)
• M93: 79,668,795 km (0.118 R)
• M94: 80,430,547 km (0.064 R)
• M95: 80,685,013 km (0.073 R)
• M96: 80,812,321 km (0.064 R)
• M97: 82,473,905 km (0.093 R)
• M98: 83,888,502 km (0.059 R)
• M99: 84,404,914 km (0.052 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 146.9

Radius: 7.6

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 15.37 AU - 16.71 AU

Year: 24597 Days

Day: 15.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (52)

Outer Limit: 52,279,079 km

• M1: 163,062 km (0.053 R)
• M2: 576,101 km (0.067 R)
• M3: 643,271 km (0.088 R)
• M4: 1,166,415 km (0.119 R)
• M5: 1,319,902 km (0.11 R)
• M6: 1,503,459 km (0.117 R)
• M7: 1,695,542 km (0.065 R)
• M8: 1,998,328 km (0.094 R)
• M9: 2,456,397 km (0.075 R)
• M10: 2,769,805 km (0.083 R)
• M11: 3,005,720 km (0.098 R)
• M12: 4,113,044 km (0.113 R)
• M13: 4,179,765 km (0.048 R)
• M14: 4,797,155 km (0.062 R)
• M15: 6,539,521 km (0.032 R)
• M16: 7,702,346 km (0.085 R)
• M17: 7,909,239 km (0.044 R)
• M18: 8,328,562 km (0.115 R)
• M19: 9,232,732 km (0.086 R)
• M20: 10,623,394 km (0.096 R)
• M21: 11,982,490 km (0.11 R)
• M22: 12,609,305 km (0.114 R)
• M23: 14,146,723 km (0.108 R)
• M24: 14,706,518 km (0.118 R)
• M25: 14,808,992 km (0.106 R)
• M26: 15,952,519 km (0.078 R)
• M27: 16,428,539 km (0.06 R)
• M28: 17,448,647 km (0.091 R)
• M29: 17,557,255 km (0.058 R)
• M30: 19,268,804 km (0.07 R)
• M31: 19,662,546 km (0.107 R)
• M32: 20,343,814 km (0.088 R)
• M33: 20,629,995 km (0.092 R)
• M34: 27,126,731 km (0.057 R)
• M35: 27,568,045 km (0.085 R)
• M36: 28,011,603 km (0.096 R)
• M37: 29,292,011 km (0.106 R)
• M38: 31,976,096 km (0.099 R)
• M39: 32,175,660 km (0.106 R)
• M40: 33,853,849 km (0.049 R)
• M41: 36,876,025 km (0.087 R)
• M42: 40,701,242 km (0.058 R)
• M43: 41,278,540 km (0.113 R)
• M44: 43,246,949 km (0.104 R)
• M45: 44,873,377 km (0.09 R)
• M46: 45,843,968 km (0.04 R)
• M47: 48,643,692 km (0.072 R)
• M48: 49,563,570 km (0.073 R)
• M49: 51,264,797 km (0.118 R)
• M50: 51,498,319 km (0.061 R)
• M51: 52,044,351 km (0.098 R)
• M52: 52,200,831 km (0.054 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 335 - 12,310 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit