🌌 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: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.49 AU - 0.53 AU

Year: 232 Days

Day: 43 Hours

Environment

Temp: -107 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.3

Radius: 14.9

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.59 AU - 0.87 AU

Year: 397 Days

Day: 7.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 53,200,480 km

• M1: 185,352 km (0.118 R)
• M2: 737,368 km (0.09 R)
• M3: 1,212,940 km (0.091 R)
• M4: 1,677,291 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.4

Radius: 12.4

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.82 AU - 0.96 AU

Year: 534 Days

Day: 7 Hours

Environment

Temp: -161 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 53,200,480 km

• M1: 157,975 km (0.117 R)
• M2: 580,141 km (0.109 R)
• M3: 1,073,514 km (0.119 R)
• M4: 1,749,996 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.2

Radius: 14.1

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.9 AU - 0.98 AU

Year: 579 Days

Day: 9.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,200,480 km

• M1: 175,777 km (0.062 R)
• M2: 680,371 km (0.057 R)
• M3: 1,611,618 km (0.093 R)
• M4: 2,155,855 km (0.069 R)
• M5: 2,879,310 km (0.088 R)
• M6: 3,352,039 km (0.111 R)
• M7: 3,935,770 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.4

Radius: 8.9

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.96 AU - 1.3 AU

Year: 764 Days

Day: 11.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 53,200,480 km

• M1: 116,686 km (0.062 R)
• M2: 443,857 km (0.066 R)
• M3: 834,457 km (0.115 R)
• M4: 1,362,687 km (0.103 R)
• M5: 2,055,774 km (0.08 R)
• M6: 3,024,121 km (0.066 R)
• M7: 3,385,849 km (0.096 R)
• M8: 4,418,672 km (0.109 R)
• M9: 5,472,440 km (0.101 R)
• M10: 6,907,233 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.2

Radius: 10

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.8 AU - 2.68 AU

Year: 2132 Days

Day: 7.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 61.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,200,480 km

• M1: 124,316 km (0.118 R)
• M2: 454,478 km (0.04 R)
• M3: 1,269,338 km (0.038 R)
• M4: 1,935,497 km (0.114 R)
• M5: 2,318,468 km (0.043 R)
• M6: 3,971,225 km (0.028 R)
• M7: 4,633,495 km (0.111 R)
• M8: 6,272,639 km (0.104 R)
• M9: 7,569,802 km (0.108 R)
• M10: 10,050,733 km (0.099 R)
• M11: 10,721,231 km (0.029 R)
• M12: 11,208,022 km (0.036 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 922.2

Radius: 6.4

Gravity: 22.51 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 4.88 AU - 7.84 AU

Year: 10198 Days

Day: 23.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 53,200,480 km

• M1: 79,885 km (0.058 R)
• M2: 294,857 km (0.115 R)
• M3: 649,704 km (0.087 R)
• M4: 946,655 km (0.106 R)
• M5: 1,371,962 km (0.104 R)
• M6: 1,674,748 km (0.109 R)
• M7: 2,092,575 km (0.096 R)
• M8: 3,742,939 km (0.108 R)
• M9: 4,218,959 km (0.09 R)
• M10: 5,090,068 km (0.106 R)
• M11: 5,359,643 km (0.092 R)
• M12: 5,674,247 km (0.082 R)
• M13: 6,263,962 km (0.098 R)
• M14: 8,891,200 km (0.088 R)
• M15: 11,645,147 km (0.06 R)
• M16: 12,413,332 km (0.109 R)
• M17: 15,543,368 km (0.081 R)
• M18: 16,328,308 km (0.086 R)
• M19: 16,989,980 km (0.092 R)
• M20: 17,899,834 km (0.063 R)
• M21: 20,148,290 km (0.103 R)
• M22: 20,994,864 km (0.107 R)
• M23: 21,253,519 km (0.07 R)
• M24: 25,882,077 km (0.041 R)
• M25: 26,983,417 km (0.086 R)
• M26: 31,928,973 km (0.092 R)
• M27: 34,018,107 km (0.069 R)
• M28: 36,320,269 km (0.114 R)
• M29: 38,595,203 km (0.112 R)
• M30: 40,031,193 km (0.087 R)
• M31: 45,266,072 km (0.111 R)
• M32: 47,009,336 km (0.097 R)
• M33: 49,099,218 km (0.086 R)
• M34: 53,303,217 km (0.088 R)

Asteroid Belt

Center: 6.78 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 754.9

Radius: 3.9

Gravity: 49.63 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 5.81 AU - 8.57 AU

Year: 12258 Days

Day: 20.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 53,200,480 km

• M1: 64,776 km (0.046 R)
• M2: 276,307 km (0.068 R)
• M3: 543,788 km (0.094 R)
• M4: 851,511 km (0.098 R)
• M5: 987,944 km (0.119 R)
• M6: 1,279,062 km (0.065 R)
• M7: 1,402,031 km (0.071 R)
• M8: 1,624,633 km (0.073 R)
• M9: 2,084,646 km (0.065 R)
• M10: 2,415,856 km (0.071 R)
• M11: 2,941,842 km (0.116 R)
• M12: 3,108,793 km (0.06 R)
• M13: 3,620,568 km (0.095 R)
• M14: 3,784,677 km (0.113 R)
• M15: 5,385,673 km (0.103 R)
• M16: 7,608,847 km (0.091 R)
• M17: 8,107,606 km (0.104 R)
• M18: 12,348,407 km (0.114 R)
• M19: 15,252,550 km (0.11 R)
• M20: 19,566,354 km (0.042 R)
• M21: 23,288,948 km (0.039 R)
• M22: 34,477,971 km (0.064 R)
• M23: 35,836,768 km (0.113 R)
• M24: 36,847,302 km (0.091 R)
• M25: 43,882,142 km (0.1 R)
• M26: 46,809,922 km (0.029 R)
• M27: 47,410,707 km (0.072 R)
• M28: 48,627,685 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 839.7

Radius: 5.1

Gravity: 32.28 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.17 AU - 9.43 AU

Year: 15204 Days

Day: 21.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 53,200,480 km

• M1: 64,177 km (0.082 R)
• M2: 373,396 km (0.079 R)
• M3: 581,487 km (0.081 R)
• M4: 814,860 km (0.052 R)
• M5: 1,397,244 km (0.094 R)
• M6: 1,632,113 km (0.052 R)
• M7: 2,520,874 km (0.07 R)
• M8: 3,580,027 km (0.111 R)
• M9: 4,239,753 km (0.116 R)
• M10: 4,977,121 km (0.099 R)
• M11: 5,228,745 km (0.093 R)
• M12: 8,382,417 km (0.111 R)
• M13: 9,265,643 km (0.056 R)
• M14: 10,209,307 km (0.119 R)
• M15: 10,912,865 km (0.042 R)
• M16: 11,337,873 km (0.068 R)
• M17: 11,648,139 km (0.109 R)
• M18: 12,946,200 km (0.084 R)
• M19: 13,839,897 km (0.08 R)
• M20: 16,607,608 km (0.093 R)
• M21: 17,169,796 km (0.054 R)
• M22: 19,193,556 km (0.029 R)
• M23: 21,183,507 km (0.072 R)
• M24: 23,909,629 km (0.103 R)
• M25: 24,522,831 km (0.11 R)
• M26: 26,642,483 km (0.088 R)
• M27: 28,310,051 km (0.086 R)
• M28: 29,227,385 km (0.057 R)
• M29: 31,606,889 km (0.113 R)
• M30: 33,095,088 km (0.116 R)
• M31: 37,563,726 km (0.069 R)
• M32: 37,838,388 km (0.109 R)
• M33: 44,226,815 km (0.119 R)
• M34: 46,558,897 km (0.1 R)
• M35: 49,794,100 km (0.116 R)
• M36: 50,625,715 km (0.063 R)
• M37: 51,129,111 km (0.103 R)
• M38: 51,466,604 km (0.09 R)
• M39: 53,696,211 km (0.076 R)
• M40: 54,746,687 km (0.098 R)
• M41: 62,294,049 km (0.082 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 361.7

Radius: 6.7

Gravity: 8.06 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 8.41 AU - 8.83 AU

Year: 16091 Days

Day: 22.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 53,200,480 km

• M1: 83,326 km (0.086 R)
• M2: 514,617 km (0.042 R)
• M3: 1,352,215 km (0.037 R)
• M4: 1,620,295 km (0.106 R)
• M5: 2,152,713 km (0.05 R)
• M6: 3,934,873 km (0.079 R)
• M7: 6,332,478 km (0.116 R)
• M8: 8,587,516 km (0.104 R)
• M9: 9,562,296 km (0.096 R)
• M10: 10,500,873 km (0.066 R)
• M11: 11,048,102 km (0.111 R)
• M12: 13,428,503 km (0.113 R)
• M13: 16,932,833 km (0.098 R)
• M14: 19,991,960 km (0.116 R)
• M15: 22,852,571 km (0.071 R)
• M16: 23,216,842 km (0.089 R)
• M17: 24,522,532 km (0.072 R)
• M18: 25,778,107 km (0.04 R)
• M19: 35,545,800 km (0.096 R)
• M20: 37,026,670 km (0.073 R)
• M21: 41,175,916 km (0.12 R)
• M22: 44,060,911 km (0.098 R)
• M23: 44,625,344 km (0.116 R)
• M24: 45,768,571 km (0.059 R)
• M25: 47,225,056 km (0.119 R)
• M26: 47,816,117 km (0.108 R)
• M27: 51,155,740 km (0.102 R)
• M28: 53,200,444 km (0.106 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 295 - 18,611 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit