🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.56 AU - 0.62 AU

Year: 163 Days

Day: 31.8 Hours

Environment

Temp: 156 °C

Axial Tilt: 7.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.58 AU - 0.8 AU

Year: 206 Days

Day: 19.1 Hours

Environment

Temp: 157 °C

Axial Tilt: 32.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 69,652,033 km

• M1: 472,280 km (0.09 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.8

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.01 AU - 1.17 AU

Year: 410 Days

Day: 45.6 Hours

Environment

Temp: 36 °C

Axial Tilt: 18.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 69,652,033 km

• M1: 608,415 km (0.047 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.26 AU - 1.72 AU

Year: 655 Days

Day: 40.8 Hours

Environment

Temp: -38 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,652,033 km

• M1: 922,869 km (0.083 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.6

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.66 AU - 1.96 AU

Year: 876 Days

Day: 32.8 Hours

Environment

Temp: -45 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.15

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.59 AU - 4.13 AU

Year: 2217 Days

Day: 12.3 Hours

Environment

Temp: -115 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,652,033 km

• M1: 960,119 km (0.082 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 3.18 AU - 4 AU

Year: 2448 Days

Day: 27.7 Hours

Environment

Temp: -107 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.28 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 6.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.3

Radius: 12.4

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 6.84 AU - 7.08 AU

Year: 6608 Days

Day: 12.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 69,652,033 km

• M1: 172,187 km (0.114 R)
• M2: 375,939 km (0.087 R)
• M3: 499,657 km (0.105 R)
• M4: 887,115 km (0.052 R)
• M5: 1,047,335 km (0.097 R)
• M6: 1,472,492 km (0.103 R)
• M7: 1,645,427 km (0.114 R)
• M8: 1,991,148 km (0.096 R)
• M9: 2,518,480 km (0.11 R)
• M10: 2,633,820 km (0.12 R)
• M11: 3,014,846 km (0.1 R)
• M12: 3,464,836 km (0.12 R)
• M13: 3,724,089 km (0.093 R)
• M14: 4,043,630 km (0.107 R)
• M15: 4,152,089 km (0.048 R)
• M16: 4,427,798 km (0.064 R)
• M17: 4,852,656 km (0.101 R)
• M18: 5,589,874 km (0.095 R)
• M19: 5,987,056 km (0.034 R)
• M20: 6,393,514 km (0.107 R)
• M21: 6,488,658 km (0.047 R)
• M22: 6,873,723 km (0.1 R)
• M23: 7,565,763 km (0.05 R)
• M24: 7,666,442 km (0.107 R)
• M25: 7,937,065 km (0.104 R)
• M26: 8,107,905 km (0.052 R)
• M27: 8,732,925 km (0.053 R)
• M28: 8,838,691 km (0.1 R)
• M29: 10,400,044 km (0.095 R)
• M30: 10,662,289 km (0.08 R)
• M31: 11,927,737 km (0.112 R)
• M32: 12,005,977 km (0.096 R)
• M33: 12,163,055 km (0.076 R)
• M34: 12,518,649 km (0.042 R)
• M35: 12,757,706 km (0.112 R)
• M36: 12,958,168 km (0.092 R)
• M37: 13,119,135 km (0.074 R)
• M38: 13,280,850 km (0.077 R)
• M39: 14,016,872 km (0.119 R)
• M40: 14,556,621 km (0.115 R)
• M41: 14,808,095 km (0.108 R)
• M42: 14,892,318 km (0.117 R)
• M43: 15,145,588 km (0.109 R)
• M44: 15,443,138 km (0.092 R)
• M45: 15,828,352 km (0.088 R)
• M46: 15,914,371 km (0.03 R)
• M47: 16,477,457 km (0.099 R)
• M48: 16,871,049 km (0.1 R)
• M49: 17,400,776 km (0.075 R)
• M50: 17,667,808 km (0.118 R)
• M51: 17,846,428 km (0.039 R)
• M52: 17,980,916 km (0.093 R)
• M53: 18,160,733 km (0.089 R)
• M54: 19,712,661 km (0.111 R)
• M55: 19,898,162 km (0.087 R)
• M56: 20,130,637 km (0.116 R)
• M57: 21,069,813 km (0.065 R)
• M58: 21,592,508 km (0.107 R)
• M59: 22,264,053 km (0.045 R)
• M60: 25,520,649 km (0.101 R)
• M61: 25,976,174 km (0.034 R)
• M62: 26,332,217 km (0.104 R)
• M63: 26,843,842 km (0.092 R)
• M64: 27,929,025 km (0.119 R)
• M65: 28,189,475 km (0.075 R)
• M66: 28,398,463 km (0.043 R)
• M67: 28,660,259 km (0.031 R)
• M68: 29,397,926 km (0.1 R)
• M69: 32,520,034 km (0.09 R)
• M70: 32,739,195 km (0.085 R)
• M71: 34,064,632 km (0.115 R)
• M72: 35,070,229 km (0.119 R)
• M73: 35,294,925 km (0.088 R)
• M74: 36,142,098 km (0.095 R)
• M75: 36,255,642 km (0.097 R)
• M76: 36,539,878 km (0.056 R)
• M77: 36,767,716 km (0.111 R)
• M78: 36,996,002 km (0.116 R)
• M79: 38,376,043 km (0.093 R)
• M80: 38,839,796 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 309.1

Radius: 7.2

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 16.49 AU - 18.27 AU

Year: 26076 Days

Day: 21.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 69,652,033 km

• M1: 525,687 km (0.086 R)
• M2: 604,824 km (0.115 R)
• M3: 821,143 km (0.085 R)
• M4: 867,219 km (0.045 R)
• M5: 1,036,115 km (0.097 R)
• M6: 1,137,542 km (0.092 R)
• M7: 1,461,571 km (0.084 R)
• M8: 1,967,661 km (0.094 R)
• M9: 2,094,370 km (0.079 R)
• M10: 2,456,397 km (0.061 R)
• M11: 2,524,314 km (0.082 R)
• M12: 2,731,956 km (0.03 R)
• M13: 3,127,044 km (0.056 R)
• M14: 3,200,796 km (0.097 R)
• M15: 3,578,381 km (0.113 R)
• M16: 3,970,178 km (0.03 R)
• M17: 4,252,619 km (0.107 R)
• M18: 4,836,948 km (0.107 R)
• M19: 4,922,368 km (0.062 R)
• M20: 5,313,567 km (0.109 R)
• M21: 7,464,335 km (0.111 R)
• M22: 8,370,898 km (0.044 R)
• M23: 8,837,045 km (0.078 R)
• M24: 9,047,081 km (0.075 R)
• M25: 9,099,739 km (0.05 R)
• M26: 9,740,617 km (0.113 R)
• M27: 9,957,533 km (0.096 R)
• M28: 11,634,376 km (0.109 R)
• M29: 13,216,673 km (0.095 R)
• M30: 13,396,639 km (0.072 R)
• M31: 13,819,702 km (0.117 R)
• M32: 13,880,438 km (0.12 R)
• M33: 14,124,582 km (0.117 R)
• M34: 14,185,768 km (0.091 R)
• M35: 14,493,341 km (0.081 R)
• M36: 14,740,925 km (0.052 R)
• M37: 15,492,206 km (0.075 R)
• M38: 16,384,408 km (0.096 R)
• M39: 17,031,867 km (0.113 R)
• M40: 17,489,936 km (0.118 R)
• M41: 17,687,555 km (0.114 R)
• M42: 17,885,921 km (0.086 R)
• M43: 18,085,036 km (0.115 R)
• M44: 19,023,763 km (0.109 R)
• M45: 19,227,066 km (0.05 R)
• M46: 19,362,901 km (0.118 R)
• M47: 19,567,401 km (0.087 R)
• M48: 20,323,020 km (0.078 R)
• M49: 21,580,241 km (0.08 R)
• M50: 22,075,859 km (0.103 R)
• M51: 22,646,874 km (0.102 R)
• M52: 23,150,570 km (0.091 R)
• M53: 23,949,422 km (0.08 R)
• M54: 24,095,729 km (0.114 R)
• M55: 24,168,882 km (0.105 R)
• M56: 25,948,499 km (0.08 R)
• M57: 27,310,587 km (0.083 R)
• M58: 27,769,853 km (0.091 R)
• M59: 28,154,469 km (0.106 R)
• M60: 28,773,505 km (0.066 R)
• M61: 29,084,818 km (0.098 R)
• M62: 32,824,166 km (0.104 R)
• M63: 33,312,454 km (0.11 R)
• M64: 34,378,339 km (0.088 R)
• M65: 35,455,443 km (0.115 R)
• M66: 36,796,139 km (0.119 R)
• M67: 37,387,949 km (0.026 R)
• M68: 37,897,778 km (0.048 R)
• M69: 38,409,852 km (0.1 R)
• M70: 39,268,394 km (0.096 R)
• M71: 39,786,601 km (0.075 R)
• M72: 40,046,452 km (0.048 R)
• M73: 41,354,536 km (0.107 R)
• M74: 41,793,756 km (0.044 R)
• M75: 42,411,146 km (0.066 R)
• M76: 43,833,672 km (0.075 R)
• M77: 45,091,042 km (0.047 R)
• M78: 46,451,485 km (0.074 R)
• M79: 46,816,504 km (0.094 R)
• M80: 47,091,016 km (0.066 R)
• M81: 47,917,395 km (0.118 R)
• M82: 48,286,303 km (0.108 R)
• M83: 48,563,508 km (0.044 R)
• M84: 51,648,066 km (0.101 R)
• M85: 52,026,250 km (0.06 R)
• M86: 52,310,486 km (0.118 R)
• M87: 53,357,222 km (0.091 R)
• M88: 54,891,797 km (0.091 R)
• M89: 57,710,221 km (0.118 R)
• M90: 58,102,616 km (0.079 R)
• M91: 59,879,390 km (0.096 R)
• M92: 60,276,722 km (0.081 R)
• M93: 62,276,247 km (0.111 R)
• M94: 62,477,307 km (0.073 R)
• M95: 63,891,306 km (0.071 R)
• M96: 66,032,201 km (0.095 R)

Kuiper Belt

Range: 30.5 - 57.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 12,765 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit