🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.39 AU - 0.65 AU

Year: 242 Days

Day: 27.8 Hours

Environment

Temp: -108 °C

Axial Tilt: 33.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547

Radius: 10.3

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.79 AU - 0.99 AU

Year: 542 Days

Day: 10.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,824,097 km

• M1: 128,205 km (0.109 R)
• M2: 462,557 km (0.084 R)
• M3: 840,142 km (0.085 R)
• M4: 1,296,266 km (0.086 R)
• M5: 2,400,148 km (0.089 R)
• M6: 2,825,006 km (0.072 R)
• M7: 3,519,440 km (0.083 R)
• M8: 3,961,352 km (0.1 R)
• M9: 4,367,211 km (0.12 R)
• M10: 5,148,710 km (0.057 R)
• M11: 5,754,581 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.1

Radius: 14.8

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.18 AU - 1.24 AU

Year: 859 Days

Day: 8.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 59,824,097 km

• M1: 184,005 km (0.078 R)
• M2: 941,569 km (0.101 R)
• M3: 1,989,502 km (0.119 R)
• M4: 2,613,774 km (0.103 R)
• M5: 3,608,301 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.8

Radius: 11.9

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.4 AU - 2.24 AU

Year: 1585 Days

Day: 14.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 59,824,097 km

• M1: 147,952 km (0.064 R)
• M2: 554,559 km (0.079 R)
• M3: 1,111,811 km (0.03 R)
• M4: 1,569,581 km (0.109 R)
• M5: 1,976,038 km (0.084 R)
• M6: 3,154,570 km (0.103 R)
• M7: 4,200,708 km (0.036 R)
• M8: 4,596,843 km (0.117 R)
• M9: 5,709,702 km (0.087 R)
• M10: 6,612,525 km (0.114 R)
• M11: 7,203,885 km (0.112 R)
• M12: 7,886,201 km (0.111 R)
• M13: 8,671,141 km (0.115 R)
• M14: 9,098,094 km (0.111 R)
• M15: 9,507,244 km (0.12 R)
• M16: 12,686,647 km (0.072 R)
• M17: 13,317,950 km (0.076 R)
• M18: 13,764,201 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.2

Radius: 9.9

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.75 AU - 2.69 AU

Year: 2136 Days

Day: 14.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 59,824,097 km

• M1: 132,245 km (0.104 R)
• M2: 533,316 km (0.051 R)
• M3: 919,429 km (0.069 R)
• M4: 1,304,344 km (0.108 R)
• M5: 1,884,784 km (0.088 R)
• M6: 2,305,602 km (0.07 R)
• M7: 3,288,012 km (0.112 R)
• M8: 3,719,003 km (0.055 R)
• M9: 4,052,457 km (0.112 R)
• M10: 4,405,807 km (0.117 R)
• M11: 5,380,736 km (0.098 R)
• M12: 5,882,338 km (0.114 R)
• M13: 6,625,989 km (0.098 R)
• M14: 7,782,680 km (0.091 R)
• M15: 8,237,756 km (0.111 R)
• M16: 8,614,743 km (0.071 R)
• M17: 9,403,124 km (0.099 R)
• M18: 11,010,104 km (0.071 R)
• M19: 11,978,152 km (0.03 R)
• M20: 12,585,669 km (0.03 R)
• M21: 13,556,858 km (0.029 R)
• M22: 13,906,169 km (0.111 R)
• M23: 14,577,265 km (0.095 R)
• M24: 14,990,305 km (0.089 R)
• M25: 15,600,515 km (0.116 R)
• M26: 16,621,221 km (0.119 R)

Asteroid Belt

Center: 2.6 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.3

Radius: 11.8

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.31 AU - 3.63 AU

Year: 3305 Days

Day: 8.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,824,097 km

• M1: 161,117 km (0.114 R)
• M2: 617,690 km (0.109 R)
• M3: 1,237,773 km (0.114 R)
• M4: 1,986,361 km (0.113 R)
• M5: 2,562,312 km (0.087 R)
• M6: 4,737,316 km (0.09 R)
• M7: 7,536,292 km (0.03 R)
• M8: 9,112,754 km (0.104 R)
• M9: 11,853,836 km (0.083 R)
• M10: 13,523,947 km (0.102 R)
• M11: 14,626,633 km (0.091 R)
• M12: 18,570,481 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.4

Radius: 9.7

Gravity: 10.31 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.14 AU - 6.5 AU

Year: 9066 Days

Day: 11.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 59,824,097 km

• M1: 120,576 km (0.082 R)
• M2: 560,394 km (0.105 R)
• M3: 887,863 km (0.07 R)
• M4: 3,174,018 km (0.105 R)
• M5: 3,613,088 km (0.066 R)
• M6: 3,955,218 km (0.083 R)
• M7: 4,261,445 km (0.102 R)
• M8: 4,797,005 km (0.038 R)
• M9: 5,343,486 km (0.109 R)
• M10: 6,002,764 km (0.102 R)
• M11: 6,754,493 km (0.033 R)
• M12: 7,194,012 km (0.063 R)
• M13: 9,935,842 km (0.063 R)
• M14: 11,936,564 km (0.082 R)
• M15: 12,284,678 km (0.081 R)
• M16: 12,940,365 km (0.097 R)
• M17: 15,318,373 km (0.106 R)
• M18: 15,868,594 km (0.062 R)
• M19: 16,574,546 km (0.056 R)
• M20: 19,211,658 km (0.062 R)
• M21: 19,529,852 km (0.098 R)
• M22: 20,258,544 km (0.04 R)
• M23: 23,627,637 km (0.1 R)
• M24: 24,455,063 km (0.1 R)
• M25: 28,470,719 km (0.059 R)
• M26: 28,780,686 km (0.063 R)
• M27: 29,830,414 km (0.057 R)
• M28: 31,452,504 km (0.099 R)
• M29: 34,989,895 km (0.095 R)
• M30: 36,306,356 km (0.078 R)
• M31: 38,154,339 km (0.043 R)
• M32: 38,657,436 km (0.084 R)
• M33: 42,438,971 km (0.112 R)
• M34: 44,349,934 km (0.078 R)
• M35: 45,186,186 km (0.047 R)
• M36: 45,608,202 km (0.108 R)
• M37: 47,178,232 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 989.5

Radius: 5.7

Gravity: 30.46 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 6.43 AU - 7.29 AU

Year: 11601 Days

Day: 17.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 59,824,097 km

• M1: 83,176 km (0.118 R)
• M2: 302,188 km (0.088 R)
• M3: 689,945 km (0.059 R)
• M4: 907,311 km (0.117 R)
• M5: 1,145,471 km (0.041 R)
• M6: 1,668,166 km (0.118 R)
• M7: 2,357,812 km (0.095 R)
• M8: 3,561,177 km (0.062 R)
• M9: 4,788,628 km (0.088 R)
• M10: 5,023,347 km (0.059 R)
• M11: 5,515,823 km (0.091 R)
• M12: 6,354,170 km (0.047 R)
• M13: 9,220,914 km (0.104 R)
• M14: 9,637,544 km (0.07 R)
• M15: 10,508,353 km (0.077 R)
• M16: 10,734,096 km (0.067 R)
• M17: 11,078,620 km (0.074 R)
• M18: 12,913,139 km (0.104 R)
• M19: 13,700,472 km (0.093 R)
• M20: 13,902,280 km (0.034 R)
• M21: 15,734,854 km (0.096 R)
• M22: 16,254,407 km (0.075 R)
• M23: 16,939,266 km (0.064 R)
• M24: 17,249,682 km (0.081 R)
• M25: 18,042,401 km (0.102 R)
• M26: 19,957,553 km (0.091 R)
• M27: 20,478,453 km (0.086 R)
• M28: 23,315,875 km (0.102 R)
• M29: 24,778,494 km (0.095 R)
• M30: 25,078,138 km (0.115 R)
• M31: 25,889,108 km (0.083 R)
• M32: 27,563,258 km (0.075 R)
• M33: 32,180,297 km (0.117 R)
• M34: 36,896,520 km (0.081 R)
• M35: 47,978,879 km (0.081 R)
• M36: 52,278,621 km (0.093 R)
• M37: 58,755,013 km (0.086 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 346 - 19,893 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit