🌌 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: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.57 AU - 0.61 AU

Year: 162 Days

Day: 22.1 Hours

Environment

Temp: 178 °C

Axial Tilt: 9.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.43

Radius: 0.71

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.7 AU - 0.9 AU

Year: 255 Days

Day: 28.4 Hours

Environment

Temp: 134 °C

Axial Tilt: 59.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.23

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.35 AU - 3.27 AU

Year: 1679 Days

Day: 20.2 Hours

Environment

Temp: -80 °C

Axial Tilt: 16.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 75,245,690 km

• M1: 158,574 km (0.064 R)
• M2: 340,335 km (0.074 R)

Asteroid Belt

Center: 5.82 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.7

Radius: 12.9

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 8.13 AU - 9.51 AU

Year: 9337 Days

Day: 7.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 75,245,690 km

• M1: 162,762 km (0.068 R)
• M2: 640,578 km (0.094 R)
• M3: 1,208,452 km (0.097 R)
• M4: 1,618,499 km (0.064 R)
• M5: 2,610,782 km (0.081 R)
• M6: 3,266,021 km (0.078 R)
• M7: 4,251,272 km (0.095 R)
• M8: 5,161,875 km (0.072 R)
• M9: 8,774,962 km (0.094 R)
• M10: 9,345,828 km (0.1 R)
• M11: 9,790,283 km (0.062 R)
• M12: 11,542,074 km (0.049 R)
• M13: 12,522,090 km (0.089 R)
• M14: 13,682,072 km (0.099 R)
• M15: 14,451,005 km (0.119 R)
• M16: 16,931,188 km (0.116 R)
• M17: 18,502,414 km (0.063 R)
• M18: 19,763,375 km (0.064 R)
• M19: 20,332,595 km (0.099 R)
• M20: 20,746,083 km (0.104 R)
• M21: 21,760,955 km (0.112 R)
• M22: 22,808,888 km (0.06 R)
• M23: 27,439,241 km (0.112 R)
• M24: 31,435,599 km (0.033 R)
• M25: 32,548,458 km (0.116 R)
• M26: 33,802,686 km (0.08 R)
• M27: 38,510,232 km (0.049 R)
• M28: 40,692,715 km (0.066 R)
• M29: 47,298,060 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 12.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.2

Radius: 8.6

Gravity: 12.29 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 9.25 AU - 14.85 AU

Year: 14910 Days

Day: 7.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 75,245,690 km

• M1: 107,262 km (0.111 R)
• M2: 432,487 km (0.118 R)
• M3: 742,604 km (0.095 R)
• M4: 1,258,567 km (0.12 R)
• M5: 1,905,278 km (0.081 R)
• M6: 2,211,805 km (0.069 R)
• M7: 4,599,686 km (0.084 R)
• M8: 5,835,514 km (0.118 R)
• M9: 7,279,283 km (0.081 R)
• M10: 9,428,406 km (0.063 R)
• M11: 12,356,635 km (0.091 R)
• M12: 13,430,897 km (0.092 R)
• M13: 14,061,901 km (0.115 R)
• M14: 14,493,491 km (0.069 R)
• M15: 15,232,354 km (0.074 R)
• M16: 16,151,933 km (0.119 R)
• M17: 17,189,394 km (0.079 R)
• M18: 18,784,556 km (0.079 R)
• M19: 20,567,912 km (0.071 R)
• M20: 22,073,764 km (0.039 R)
• M21: 23,651,573 km (0.068 R)
• M22: 24,675,122 km (0.101 R)
• M23: 26,700,677 km (0.09 R)
• M24: 28,148,934 km (0.109 R)
• M25: 30,717,978 km (0.111 R)
• M26: 31,080,005 km (0.072 R)
• M27: 32,059,272 km (0.112 R)
• M28: 32,556,536 km (0.115 R)
• M29: 33,566,621 km (0.086 R)
• M30: 39,073,169 km (0.106 R)
• M31: 39,356,208 km (0.07 R)
• M32: 40,213,553 km (0.064 R)
• M33: 48,335,371 km (0.091 R)
• M34: 50,649,949 km (0.109 R)
• M35: 51,324,636 km (0.057 R)
• M36: 56,576,718 km (0.107 R)
• M37: 60,459,381 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 282.4

Radius: 5.6

Gravity: 9.01 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 13.22 AU - 16.46 AU

Year: 20377 Days

Day: 17.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 75,245,690 km

• M1: 69,713 km (0.117 R)
• M2: 456,274 km (0.084 R)
• M3: 748,438 km (0.098 R)
• M4: 1,209,499 km (0.117 R)
• M5: 2,109,031 km (0.062 R)
• M6: 2,300,815 km (0.081 R)
• M7: 2,653,567 km (0.097 R)
• M8: 3,017,838 km (0.118 R)
• M9: 4,074,747 km (0.1 R)
• M10: 4,528,328 km (0.056 R)
• M11: 4,849,065 km (0.111 R)
• M12: 5,607,826 km (0.104 R)
• M13: 6,207,414 km (0.118 R)
• M14: 6,890,328 km (0.118 R)
• M15: 7,711,321 km (0.08 R)
• M16: 10,453,899 km (0.098 R)
• M17: 13,068,870 km (0.106 R)
• M18: 13,391,104 km (0.099 R)
• M19: 13,587,077 km (0.114 R)
• M20: 16,911,590 km (0.096 R)
• M21: 17,217,369 km (0.095 R)
• M22: 17,761,306 km (0.111 R)
• M23: 19,129,828 km (0.113 R)
• M24: 19,545,411 km (0.067 R)
• M25: 21,534,763 km (0.079 R)
• M26: 22,995,736 km (0.103 R)
• M27: 24,521,634 km (0.079 R)
• M28: 26,317,407 km (0.089 R)
• M29: 26,624,980 km (0.114 R)
• M30: 26,831,276 km (0.084 R)
• M31: 27,038,768 km (0.037 R)
• M32: 30,731,292 km (0.111 R)
• M33: 35,614,316 km (0.106 R)
• M34: 36,243,076 km (0.109 R)
• M35: 36,751,410 km (0.038 R)
• M36: 41,541,833 km (0.084 R)
• M37: 43,369,171 km (0.118 R)
• M38: 44,810,696 km (0.102 R)
• M39: 50,738,511 km (0.106 R)
• M40: 54,468,286 km (0.093 R)
• M41: 55,638,739 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 630.5

Radius: 4

Gravity: 39.41 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 11.19 AU - 18.61 AU

Year: 20501 Days

Day: 19.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 75,245,690 km

• M1: 51,462 km (0.12 R)
• M2: 251,624 km (0.107 R)
• M3: 495,618 km (0.084 R)
• M4: 818,151 km (0.096 R)
• M5: 1,128,716 km (0.118 R)
• M6: 1,402,181 km (0.105 R)
• M7: 1,546,393 km (0.116 R)
• M8: 1,808,788 km (0.099 R)
• M9: 2,100,354 km (0.108 R)
• M10: 2,289,895 km (0.099 R)
• M11: 3,413,973 km (0.086 R)
• M12: 3,616,828 km (0.103 R)
• M13: 3,797,243 km (0.048 R)
• M14: 4,143,412 km (0.073 R)
• M15: 4,307,521 km (0.111 R)
• M16: 5,045,039 km (0.112 R)
• M17: 6,325,148 km (0.11 R)
• M18: 6,856,370 km (0.118 R)
• M19: 7,369,042 km (0.072 R)
• M20: 7,561,574 km (0.058 R)
• M21: 8,522,740 km (0.118 R)
• M22: 9,449,200 km (0.106 R)
• M23: 12,222,296 km (0.049 R)
• M24: 14,950,213 km (0.117 R)
• M25: 15,969,423 km (0.114 R)
• M26: 22,767,300 km (0.05 R)
• M27: 24,008,065 km (0.102 R)
• M28: 35,597,113 km (0.105 R)
• M29: 36,983,735 km (0.042 R)
• M30: 41,510,417 km (0.105 R)
• M31: 46,392,693 km (0.101 R)
• M32: 52,882,099 km (0.07 R)
• M33: 55,601,789 km (0.09 R)
• M34: 64,317,510 km (0.071 R)
• M35: 66,578,233 km (0.077 R)
• M36: 68,044,292 km (0.112 R)
• M37: 69,745,818 km (0.1 R)
• M38: 73,012,288 km (0.09 R)

Kuiper Belt

Range: 30.8 - 55.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 475 - 15,780 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit