🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.68 AU - 0.82 AU

Year: 240 Days

Day: 13.3 Hours

Environment

Temp: 167 °C

Axial Tilt: 28.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.93 AU - 2.23 AU

Year: 1107 Days

Day: 20.9 Hours

Environment

Temp: -78 °C

Axial Tilt: 135.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.97 AU - 2.59 AU

Year: 1270 Days

Day: 18.7 Hours

Environment

Temp: -76 °C

Axial Tilt: 8.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.47

Radius: 1.44

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.05 AU - 2.95 AU

Year: 1458 Days

Day: 15.7 Hours

Environment

Temp: -86 °C

Axial Tilt: 29.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.04

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 3.42 AU - 3.42 AU

Year: 2334 Days

Day: 33 Hours

Environment

Temp: -126 °C

Axial Tilt: 31.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 2.87 AU - 4.77 AU

Year: 2755 Days

Day: 30.3 Hours

Environment

Temp: -114 °C

Axial Tilt: 15.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,750,890 km

• M1: 29,172 km (0.088 R)

Asteroid Belt

Center: 7.47 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 11.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.2

Radius: 8.8

Gravity: 9.89 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 9.49 AU - 12.73 AU

Year: 13663 Days

Day: 11.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (87)

Outer Limit: 52,750,890 km

• M1: 245,041 km (0.11 R)
• M2: 309,069 km (0.094 R)
• M3: 427,252 km (0.114 R)
• M4: 752,627 km (0.101 R)
• M5: 876,793 km (0.068 R)
• M6: 1,076,506 km (0.11 R)
• M7: 1,519,316 km (0.062 R)
• M8: 2,588,342 km (0.086 R)
• M9: 3,176,711 km (0.12 R)
• M10: 3,591,396 km (0.086 R)
• M11: 3,662,305 km (0.093 R)
• M12: 4,060,236 km (0.078 R)
• M13: 4,740,906 km (0.081 R)
• M14: 4,818,697 km (0.117 R)
• M15: 5,015,269 km (0.052 R)
• M16: 5,579,402 km (0.069 R)
• M17: 5,994,686 km (0.115 R)
• M18: 6,121,246 km (0.11 R)
• M19: 6,377,058 km (0.09 R)
• M20: 7,799,883 km (0.1 R)
• M21: 7,984,487 km (0.05 R)
• M22: 8,594,248 km (0.118 R)
• M23: 10,512,093 km (0.098 R)
• M24: 10,818,619 km (0.066 R)
• M25: 11,335,928 km (0.063 R)
• M26: 12,073,595 km (0.078 R)
• M27: 12,287,371 km (0.08 R)
• M28: 13,044,934 km (0.109 R)
• M29: 13,484,602 km (0.106 R)
• M30: 14,209,554 km (0.092 R)
• M31: 14,605,091 km (0.055 R)
• M32: 14,661,938 km (0.064 R)
• M33: 16,105,856 km (0.104 R)
• M34: 16,874,640 km (0.11 R)
• M35: 18,080,548 km (0.119 R)
• M36: 18,386,326 km (0.111 R)
• M37: 18,447,661 km (0.075 R)
• M38: 18,817,318 km (0.119 R)
• M39: 19,127,135 km (0.088 R)
• M40: 20,638,073 km (0.043 R)
• M41: 20,765,680 km (0.107 R)
• M42: 20,829,708 km (0.109 R)
• M43: 21,214,474 km (0.087 R)
• M44: 21,731,335 km (0.1 R)
• M45: 21,796,260 km (0.071 R)
• M46: 22,777,473 km (0.117 R)
• M47: 23,306,750 km (0.089 R)
• M48: 24,647,446 km (0.108 R)
• M49: 24,782,832 km (0.041 R)
• M50: 26,219,869 km (0.111 R)
• M51: 26,704,865 km (0.045 R)
• M52: 28,106,897 km (0.109 R)
• M53: 28,959,605 km (0.077 R)
• M54: 29,174,128 km (0.104 R)
• M55: 29,748,733 km (0.098 R)
• M56: 29,820,840 km (0.082 R)
• M57: 29,965,201 km (0.077 R)
• M58: 31,201,478 km (0.095 R)
• M59: 31,715,347 km (0.028 R)
• M60: 32,306,109 km (0.109 R)
• M61: 34,326,578 km (0.101 R)
• M62: 34,477,971 km (0.077 R)
• M63: 35,926,228 km (0.117 R)
• M64: 36,156,758 km (0.105 R)
• M65: 37,549,963 km (0.117 R)
• M66: 38,881,983 km (0.093 R)
• M67: 39,118,646 km (0.091 R)
• M68: 39,355,759 km (0.091 R)
• M69: 40,070,089 km (0.1 R)
• M70: 41,109,345 km (0.108 R)
• M71: 41,511,464 km (0.108 R)
• M72: 42,076,496 km (0.113 R)
• M73: 43,705,168 km (0.094 R)
• M74: 43,951,256 km (0.054 R)
• M75: 45,853,094 km (0.047 R)
• M76: 46,270,023 km (0.082 R)
• M77: 47,023,847 km (0.052 R)
• M78: 47,697,187 km (0.056 R)
• M79: 48,373,818 km (0.06 R)
• M80: 48,458,640 km (0.098 R)
• M81: 49,394,674 km (0.069 R)
• M82: 50,766,785 km (0.046 R)
• M83: 51,544,096 km (0.092 R)
• M84: 53,460,893 km (0.105 R)
• M85: 54,339,781 km (0.072 R)
• M86: 59,077,246 km (0.031 R)
• M87: 61,082,157 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.8

Radius: 9.8

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 11.66 AU - 12.18 AU

Year: 15184 Days

Day: 10.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 52,750,890 km

• M1: 126,859 km (0.106 R)
• M2: 235,018 km (0.12 R)
• M3: 797,207 km (0.092 R)
• M4: 943,065 km (0.072 R)
• M5: 2,068,191 km (0.106 R)
• M6: 3,048,505 km (0.09 R)
• M7: 4,317,694 km (0.071 R)
• M8: 5,782,556 km (0.104 R)
• M9: 5,887,125 km (0.084 R)
• M10: 6,071,579 km (0.082 R)
• M11: 7,245,922 km (0.085 R)
• M12: 7,757,996 km (0.113 R)
• M13: 9,672,101 km (0.117 R)
• M14: 9,827,533 km (0.106 R)
• M15: 10,140,940 km (0.088 R)
• M16: 10,394,060 km (0.112 R)
• M17: 10,713,302 km (0.067 R)
• M18: 11,133,223 km (0.057 R)
• M19: 11,624,652 km (0.066 R)
• M20: 11,922,801 km (0.11 R)
• M21: 12,089,602 km (0.074 R)
• M22: 13,729,494 km (0.042 R)
• M23: 14,326,988 km (0.109 R)
• M24: 14,575,470 km (0.109 R)
• M25: 15,365,646 km (0.112 R)
• M26: 16,391,439 km (0.031 R)
• M27: 16,539,840 km (0.037 R)
• M28: 17,137,633 km (0.108 R)
• M29: 17,666,611 km (0.093 R)
• M30: 18,162,677 km (0.12 R)
• M31: 18,624,486 km (0.075 R)
• M32: 21,031,815 km (0.101 R)
• M33: 22,621,592 km (0.047 R)
• M34: 29,265,682 km (0.119 R)
• M35: 29,581,184 km (0.097 R)
• M36: 29,716,719 km (0.083 R)
• M37: 30,306,285 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 228.4

Radius: 7.5

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 13.63 AU - 15.01 AU

Year: 19994 Days

Day: 21.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 52,750,890 km

• M1: 199,863 km (0.076 R)
• M2: 253,568 km (0.117 R)
• M3: 423,362 km (0.105 R)
• M4: 647,011 km (0.102 R)
• M5: 699,819 km (0.068 R)
• M6: 1,026,989 km (0.053 R)
• M7: 1,708,707 km (0.053 R)
• M8: 2,200,585 km (0.083 R)
• M9: 2,282,265 km (0.026 R)
• M10: 3,030,853 km (0.062 R)
• M11: 3,152,476 km (0.064 R)
• M12: 3,751,615 km (0.073 R)
• M13: 4,148,199 km (0.094 R)
• M14: 4,454,277 km (0.1 R)
• M15: 5,124,625 km (0.106 R)
• M16: 5,197,030 km (0.06 R)
• M17: 5,269,735 km (0.108 R)
• M18: 5,489,943 km (0.053 R)
• M19: 8,020,839 km (0.072 R)
• M20: 9,714,886 km (0.064 R)
• M21: 10,394,958 km (0.044 R)
• M22: 11,278,333 km (0.053 R)
• M23: 11,705,136 km (0.053 R)
• M24: 11,752,858 km (0.104 R)
• M25: 12,185,495 km (0.116 R)
• M26: 12,233,964 km (0.032 R)
• M27: 12,379,523 km (0.094 R)
• M28: 14,272,983 km (0.046 R)
• M29: 14,528,646 km (0.12 R)
• M30: 17,114,595 km (0.091 R)
• M31: 17,879,040 km (0.086 R)
• M32: 18,878,354 km (0.105 R)
• M33: 19,497,988 km (0.092 R)
• M34: 19,611,234 km (0.058 R)
• M35: 19,724,928 km (0.117 R)
• M36: 19,838,622 km (0.101 R)
• M37: 20,757,004 km (0.071 R)
• M38: 20,814,898 km (0.078 R)
• M39: 21,337,892 km (0.027 R)
• M40: 21,571,863 km (0.09 R)
• M41: 22,219,473 km (0.071 R)
• M42: 22,397,195 km (0.076 R)
• M43: 24,139,262 km (0.044 R)
• M44: 25,427,898 km (0.112 R)
• M45: 25,551,765 km (0.092 R)
• M46: 25,800,098 km (0.095 R)
• M47: 27,243,717 km (0.112 R)
• M48: 27,879,658 km (0.116 R)
• M49: 28,135,320 km (0.109 R)
• M50: 28,327,554 km (0.081 R)
• M51: 28,456,058 km (0.072 R)
• M52: 30,734,733 km (0.105 R)
• M53: 32,801,577 km (0.066 R)
• M54: 33,003,983 km (0.111 R)
• M55: 33,409,992 km (0.116 R)
• M56: 34,226,946 km (0.037 R)
• M57: 35,603,246 km (0.069 R)
• M58: 35,672,510 km (0.062 R)
• M59: 39,480,224 km (0.104 R)
• M60: 41,068,056 km (0.05 R)
• M61: 41,359,024 km (0.026 R)
• M62: 41,942,905 km (0.114 R)
• M63: 43,266,846 km (0.118 R)
• M64: 44,008,103 km (0.103 R)
• M65: 47,777,521 km (0.112 R)
• M66: 48,928,377 km (0.113 R)
• M67: 52,514,089 km (0.059 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 288 - 15,086 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit