🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.53 AU - 0.69 AU

Year: 308 Days

Day: 22.4 Hours

Environment

Temp: -130 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 85,578,822 km

• M1: 151,842 km (0.092 R)
• M2: 552,764 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.56 AU - 0.68 AU

Year: 315 Days

Day: 47.3 Hours

Environment

Temp: -133 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.4

Radius: 11.7

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.94 AU - 1.08 AU

Year: 655 Days

Day: 8.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 85,578,822 km

• M1: 145,559 km (0.088 R)
• M2: 556,205 km (0.116 R)
• M3: 1,180,776 km (0.118 R)
• M4: 1,635,554 km (0.096 R)
• M5: 3,017,090 km (0.117 R)
• M6: 3,935,621 km (0.079 R)
• M7: 4,650,699 km (0.11 R)
• M8: 5,222,312 km (0.08 R)
• M9: 5,617,699 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.6

Radius: 8.6

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 2.05 AU - 2.25 AU

Year: 2036 Days

Day: 10.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 85,578,822 km

• M1: 106,962 km (0.087 R)
• M2: 635,043 km (0.072 R)
• M3: 1,191,397 km (0.114 R)
• M4: 1,485,806 km (0.057 R)
• M5: 3,254,801 km (0.087 R)
• M6: 3,821,328 km (0.096 R)
• M7: 4,802,840 km (0.106 R)
• M8: 5,105,775 km (0.072 R)
• M9: 5,490,691 km (0.081 R)
• M10: 6,525,310 km (0.119 R)
• M11: 6,816,577 km (0.106 R)
• M12: 7,116,520 km (0.097 R)
• M13: 8,282,636 km (0.105 R)
• M14: 12,622,470 km (0.097 R)
• M15: 13,285,338 km (0.06 R)
• M16: 14,411,960 km (0.046 R)
• M17: 15,136,013 km (0.09 R)
• M18: 15,413,817 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937

Radius: 12.7

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.91 AU - 2.99 AU

Year: 2476 Days

Day: 6.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 108.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 85,578,822 km

• M1: 159,471 km (0.07 R)
• M2: 614,997 km (0.11 R)
• M3: 1,256,024 km (0.092 R)
• M4: 1,825,094 km (0.112 R)
• M5: 2,292,438 km (0.102 R)
• M6: 2,887,837 km (0.118 R)
• M7: 4,305,427 km (0.114 R)
• M8: 5,072,714 km (0.101 R)
• M9: 5,591,071 km (0.03 R)
• M10: 6,364,791 km (0.083 R)
• M11: 7,833,393 km (0.031 R)
• M12: 8,630,152 km (0.106 R)
• M13: 9,664,322 km (0.083 R)
• M14: 10,502,668 km (0.112 R)
• M15: 11,060,967 km (0.09 R)
• M16: 11,850,395 km (0.087 R)
• M17: 12,991,079 km (0.113 R)
• M18: 14,689,613 km (0.092 R)
• M19: 16,109,596 km (0.094 R)
• M20: 17,730,639 km (0.12 R)
• M21: 18,180,779 km (0.045 R)
• M22: 18,812,082 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.7

Radius: 8.6

Gravity: 7.53 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.77 AU - 3.17 AU

Year: 3305 Days

Day: 6.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 85,578,822 km

• M1: 106,962 km (0.072 R)
• M2: 568,921 km (0.108 R)
• M3: 844,031 km (0.074 R)
• M4: 1,149,959 km (0.091 R)
• M5: 1,627,475 km (0.113 R)
• M6: 2,019,870 km (0.094 R)
• M7: 2,671,668 km (0.062 R)
• M8: 3,203,040 km (0.113 R)
• M9: 3,923,803 km (0.066 R)
• M10: 4,633,794 km (0.113 R)
• M11: 6,592,030 km (0.116 R)
• M12: 6,945,081 km (0.102 R)
• M13: 10,958,792 km (0.026 R)
• M14: 12,271,663 km (0.036 R)
• M15: 14,408,369 km (0.116 R)
• M16: 15,513,150 km (0.107 R)
• M17: 15,928,583 km (0.088 R)
• M18: 16,244,982 km (0.097 R)
• M19: 16,781,740 km (0.096 R)
• M20: 17,054,456 km (0.108 R)
• M21: 18,462,920 km (0.064 R)
• M22: 19,947,380 km (0.101 R)
• M23: 20,562,826 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 363.2

Radius: 4.1

Gravity: 21.61 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 5.24 AU - 7.74 AU

Year: 10675 Days

Day: 24.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 85,578,822 km

• M1: 54,005 km (0.086 R)
• M2: 226,192 km (0.1 R)
• M3: 431,141 km (0.057 R)
• M4: 596,596 km (0.073 R)
• M5: 787,184 km (0.084 R)
• M6: 1,027,887 km (0.074 R)
• M7: 1,389,615 km (0.09 R)
• M8: 2,289,446 km (0.077 R)
• M9: 2,583,406 km (0.113 R)
• M10: 2,964,581 km (0.096 R)
• M11: 3,157,861 km (0.069 R)
• M12: 3,336,631 km (0.106 R)
• M13: 4,841,735 km (0.118 R)
• M14: 6,388,577 km (0.12 R)
• M15: 7,082,711 km (0.077 R)
• M16: 11,114,523 km (0.067 R)
• M17: 12,889,502 km (0.097 R)
• M18: 13,520,805 km (0.056 R)
• M19: 14,112,315 km (0.083 R)
• M20: 14,475,389 km (0.049 R)
• M21: 16,121,265 km (0.077 R)
• M22: 16,451,427 km (0.06 R)
• M23: 16,718,759 km (0.087 R)
• M24: 18,672,357 km (0.085 R)
• M25: 18,817,467 km (0.106 R)
• M26: 19,331,186 km (0.04 R)
• M27: 20,386,749 km (0.118 R)
• M28: 20,695,220 km (0.105 R)
• M29: 24,643,856 km (0.067 R)
• M30: 28,199,797 km (0.06 R)
• M31: 31,669,271 km (0.063 R)
• M32: 36,420,798 km (0.075 R)
• M33: 37,563,277 km (0.086 R)
• M34: 39,083,940 km (0.077 R)

Asteroid Belt

Center: 7.65 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 760.7

Radius: 4.9

Gravity: 31.68 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.85 AU - 10.77 AU

Year: 16884 Days

Day: 19.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 85,578,822 km

• M1: 71,957 km (0.065 R)
• M2: 317,746 km (0.089 R)
• M3: 750,084 km (0.073 R)
• M4: 1,159,683 km (0.033 R)
• M5: 1,903,184 km (0.112 R)
• M6: 2,056,073 km (0.12 R)
• M7: 2,474,947 km (0.106 R)
• M8: 3,287,413 km (0.084 R)
• M9: 3,919,614 km (0.118 R)
• M10: 4,168,395 km (0.107 R)
• M11: 4,663,564 km (0.064 R)
• M12: 5,613,062 km (0.116 R)
• M13: 6,299,566 km (0.103 R)
• M14: 6,598,014 km (0.091 R)
• M15: 6,772,595 km (0.112 R)
• M16: 7,177,107 km (0.109 R)
• M17: 8,538,448 km (0.086 R)
• M18: 11,133,971 km (0.12 R)
• M19: 12,017,646 km (0.051 R)
• M20: 12,213,021 km (0.047 R)
• M21: 13,923,822 km (0.108 R)
• M22: 16,901,567 km (0.089 R)
• M23: 21,880,783 km (0.053 R)
• M24: 22,466,010 km (0.066 R)
• M25: 23,061,709 km (0.117 R)
• M26: 25,765,092 km (0.084 R)
• M27: 25,981,410 km (0.1 R)
• M28: 36,065,204 km (0.041 R)
• M29: 37,432,379 km (0.064 R)
• M30: 40,560,919 km (0.081 R)
• M31: 45,573,645 km (0.099 R)
• M32: 46,527,331 km (0.11 R)
• M33: 52,357,011 km (0.084 R)
• M34: 54,818,943 km (0.062 R)
• M35: 57,725,929 km (0.114 R)
• M36: 59,029,375 km (0.117 R)
• M37: 61,694,910 km (0.072 R)
• M38: 67,880,483 km (0.062 R)
• M39: 68,293,223 km (0.062 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 311.8

Radius: 7.4

Gravity: 5.69 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 8.72 AU - 10.62 AU

Year: 19416 Days

Day: 21.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 85,578,822 km

• M1: 92,152 km (0.104 R)
• M2: 340,186 km (0.115 R)
• M3: 1,194,838 km (0.045 R)
• M4: 1,562,849 km (0.109 R)
• M5: 2,284,808 km (0.098 R)
• M6: 3,622,961 km (0.059 R)
• M7: 4,186,945 km (0.101 R)
• M8: 4,711,136 km (0.096 R)
• M9: 6,349,233 km (0.092 R)
• M10: 7,963,394 km (0.085 R)
• M11: 9,992,689 km (0.096 R)
• M12: 10,646,581 km (0.082 R)
• M13: 13,680,576 km (0.074 R)
• M14: 14,417,944 km (0.053 R)
• M15: 15,252,251 km (0.09 R)
• M16: 20,167,588 km (0.117 R)
• M17: 22,655,850 km (0.103 R)
• M18: 24,651,336 km (0.12 R)
• M19: 28,339,671 km (0.08 R)
• M20: 30,879,394 km (0.112 R)
• M21: 31,566,198 km (0.072 R)
• M22: 34,049,822 km (0.034 R)
• M23: 35,029,239 km (0.061 R)
• M24: 50,623,022 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 907.6

Radius: 6.1

Gravity: 24.39 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 7.95 AU - 12.25 AU

Year: 20725 Days

Day: 20.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 85,578,822 km

• M1: 75,846 km (0.076 R)
• M2: 305,479 km (0.112 R)
• M3: 653,144 km (0.107 R)
• M4: 986,299 km (0.096 R)
• M5: 3,204,835 km (0.079 R)
• M6: 3,805,022 km (0.099 R)
• M7: 4,031,962 km (0.116 R)
• M8: 5,226,202 km (0.096 R)
• M9: 6,231,350 km (0.041 R)
• M10: 7,211,365 km (0.117 R)
• M11: 8,129,896 km (0.105 R)
• M12: 8,398,424 km (0.086 R)
• M13: 10,828,043 km (0.091 R)
• M14: 11,087,596 km (0.103 R)
• M15: 12,029,015 km (0.101 R)
• M16: 13,168,951 km (0.098 R)
• M17: 15,172,066 km (0.093 R)
• M18: 16,415,674 km (0.073 R)
• M19: 21,151,643 km (0.109 R)
• M20: 21,659,827 km (0.103 R)
• M21: 28,409,384 km (0.117 R)
• M22: 33,338,035 km (0.077 R)
• M23: 39,722,274 km (0.096 R)
• M24: 40,651,426 km (0.106 R)
• M25: 45,853,094 km (0.11 R)
• M26: 48,261,919 km (0.043 R)
• M27: 50,033,307 km (0.084 R)
• M28: 51,481,265 km (0.107 R)
• M29: 56,185,819 km (0.059 R)
• M30: 58,542,584 km (0.115 R)
• M31: 60,149,863 km (0.064 R)
• M32: 61,786,314 km (0.082 R)
• M33: 78,595,729 km (0.113 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 392 - 19,280 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit