🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.5

Radius: 14.4

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.62 AU - 1 AU

Year: 486 Days

Day: 15 Hours

Environment

Temp: -155 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,355,425 km

• M1: 179,069 km (0.103 R)
• M2: 674,537 km (0.112 R)
• M3: 1,163,423 km (0.1 R)
• M4: 1,840,503 km (0.118 R)
• M5: 2,332,081 km (0.093 R)
• M6: 3,066,756 km (0.111 R)
• M7: 3,529,911 km (0.099 R)
• M8: 3,989,626 km (0.083 R)
• M9: 4,503,195 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.4

Radius: 10.2

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.03 AU - 1.11 AU

Year: 738 Days

Day: 7.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 27,355,425 km

• M1: 126,859 km (0.117 R)
• M2: 504,145 km (0.091 R)
• M3: 1,253,929 km (0.065 R)
• M4: 1,608,327 km (0.114 R)
• M5: 3,554,296 km (0.054 R)
• M6: 4,291,215 km (0.073 R)
• M7: 5,661,083 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.7

Radius: 12.2

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.8 AU - 3.08 AU

Year: 3362 Days

Day: 9.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,355,425 km

• M1: 153,936 km (0.094 R)
• M2: 554,260 km (0.067 R)
• M3: 1,113,607 km (0.082 R)
• M4: 1,636,900 km (0.104 R)
• M5: 3,355,929 km (0.112 R)
• M6: 6,235,090 km (0.094 R)
• M7: 7,697,259 km (0.101 R)
• M8: 8,588,414 km (0.101 R)
• M9: 12,644,311 km (0.091 R)
• M10: 15,016,634 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.4

Radius: 14.1

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.12 AU - 4.2 AU

Year: 4669 Days

Day: 11.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,355,425 km

• M1: 176,675 km (0.039 R)
• M2: 727,794 km (0.116 R)
• M3: 2,172,011 km (0.079 R)
• M4: 4,010,121 km (0.106 R)
• M5: 4,660,722 km (0.064 R)
• M6: 5,236,075 km (0.055 R)
• M7: 5,781,509 km (0.079 R)
• M8: 6,282,811 km (0.1 R)
• M9: 6,727,566 km (0.085 R)
• M10: 7,223,034 km (0.109 R)
• M11: 7,805,867 km (0.08 R)
• M12: 8,386,756 km (0.097 R)
• M13: 8,961,810 km (0.064 R)
• M14: 9,599,396 km (0.095 R)
• M15: 10,965,374 km (0.09 R)
• M16: 12,029,913 km (0.09 R)
• M17: 13,801,002 km (0.083 R)
• M18: 15,892,530 km (0.063 R)
• M19: 16,355,834 km (0.103 R)
• M20: 18,355,958 km (0.096 R)
• M21: 20,033,997 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.6

Radius: 9.6

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 3.66 AU - 5.68 AU

Year: 6730 Days

Day: 13.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,355,425 km

• M1: 119,529 km (0.075 R)
• M2: 1,960,031 km (0.087 R)
• M3: 2,580,114 km (0.108 R)
• M4: 3,144,697 km (0.084 R)
• M5: 5,734,685 km (0.056 R)
• M6: 6,667,278 km (0.106 R)
• M7: 7,438,754 km (0.05 R)
• M8: 10,673,060 km (0.083 R)
• M9: 17,261,051 km (0.115 R)
• M10: 19,192,210 km (0.101 R)
• M11: 19,742,880 km (0.068 R)
• M12: 21,852,958 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425.8

Radius: 7.2

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 5.06 AU - 6.62 AU

Year: 9411 Days

Day: 17 Hours

Environment

Temp: -231 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 27,355,425 km

• M1: 89,609 km (0.113 R)
• M2: 318,195 km (0.085 R)
• M3: 673,041 km (0.1 R)
• M4: 996,920 km (0.095 R)
• M5: 1,699,133 km (0.087 R)
• M6: 1,979,928 km (0.08 R)
• M7: 2,361,402 km (0.1 R)
• M8: 3,428,484 km (0.078 R)
• M9: 4,424,357 km (0.083 R)
• M10: 5,018,560 km (0.115 R)
• M11: 5,258,515 km (0.11 R)
• M12: 7,234,403 km (0.05 R)
• M13: 8,017,548 km (0.082 R)
• M14: 9,613,159 km (0.104 R)
• M15: 10,903,590 km (0.101 R)
• M16: 13,191,091 km (0.087 R)
• M17: 15,212,607 km (0.117 R)
• M18: 16,101,967 km (0.036 R)
• M19: 16,559,437 km (0.084 R)
• M20: 23,155,955 km (0.094 R)
• M21: 24,847,159 km (0.081 R)
• M22: 26,983,417 km (0.083 R)
• M23: 27,815,031 km (0.113 R)
• M24: 29,142,712 km (0.09 R)
• M25: 30,018,010 km (0.111 R)
• M26: 36,307,403 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425.1

Radius: 4.2

Gravity: 24.1 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 5.28 AU - 7.26 AU

Year: 10470 Days

Day: 19.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 27,355,425 km

• M1: 54,304 km (0.093 R)
• M2: 191,485 km (0.033 R)
• M3: 725,998 km (0.108 R)
• M4: 1,246,749 km (0.114 R)
• M5: 1,592,918 km (0.052 R)
• M6: 2,511,599 km (0.065 R)
• M7: 2,932,866 km (0.106 R)
• M8: 3,216,354 km (0.111 R)
• M9: 3,940,258 km (0.104 R)
• M10: 9,329,671 km (0.11 R)
• M11: 9,515,173 km (0.05 R)
• M12: 10,282,161 km (0.105 R)
• M13: 11,089,391 km (0.076 R)
• M14: 11,668,335 km (0.057 R)
• M15: 12,101,869 km (0.039 R)
• M16: 15,249,109 km (0.098 R)
• M17: 17,252,225 km (0.041 R)
• M18: 18,028,488 km (0.088 R)
• M19: 18,975,742 km (0.083 R)
• M20: 20,032,352 km (0.105 R)
• M21: 24,388,342 km (0.079 R)
• M22: 27,302,060 km (0.107 R)
• M23: 31,571,284 km (0.057 R)
• M24: 34,911,057 km (0.059 R)
• M25: 39,679,489 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 399.6

Radius: 4.8

Gravity: 17.34 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 6.59 AU - 8.13 AU

Year: 13315 Days

Day: 18 Hours

Environment

Temp: -229 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 27,355,425 km

• M1: 59,989 km (0.098 R)
• M2: 243,545 km (0.066 R)
• M3: 482,902 km (0.081 R)
• M4: 807,081 km (0.092 R)
• M5: 1,066,633 km (0.104 R)
• M6: 1,530,087 km (0.106 R)
• M7: 2,737,342 km (0.111 R)
• M8: 3,323,765 km (0.094 R)
• M9: 3,495,055 km (0.095 R)
• M10: 3,882,214 km (0.092 R)
• M11: 4,710,987 km (0.105 R)
• M12: 5,481,116 km (0.032 R)
• M13: 5,896,250 km (0.097 R)
• M14: 6,985,622 km (0.101 R)
• M15: 7,473,461 km (0.055 R)
• M16: 8,247,181 km (0.091 R)
• M17: 8,516,607 km (0.054 R)
• M18: 9,120,384 km (0.099 R)
• M19: 10,003,011 km (0.098 R)
• M20: 11,766,471 km (0.066 R)
• M21: 13,051,068 km (0.077 R)
• M22: 20,159,510 km (0.031 R)
• M23: 20,402,906 km (0.076 R)
• M24: 20,648,396 km (0.098 R)
• M25: 21,061,735 km (0.043 R)
• M26: 22,335,112 km (0.051 R)
• M27: 23,839,318 km (0.101 R)
• M28: 28,960,502 km (0.049 R)
• M29: 31,177,393 km (0.114 R)
• M30: 34,885,326 km (0.111 R)
• M31: 35,353,717 km (0.096 R)
• M32: 35,589,633 km (0.089 R)
• M33: 37,514,060 km (0.088 R)
• M34: 39,633,562 km (0.03 R)
• M35: 40,529,055 km (0.119 R)
• M36: 42,626,417 km (0.114 R)
• M37: 43,296,466 km (0.049 R)
• M38: 45,906,500 km (0.112 R)
• M39: 47,036,114 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 391.2

Radius: 4.2

Gravity: 22.18 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.46 AU - 8.62 AU

Year: 13807 Days

Day: 19.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,355,425 km

• M1: 52,808 km (0.115 R)
• M2: 242,797 km (0.043 R)
• M3: 555,606 km (0.087 R)
• M4: 908,059 km (0.118 R)
• M5: 1,076,656 km (0.099 R)
• M6: 1,505,553 km (0.095 R)
• M7: 2,092,575 km (0.082 R)
• M8: 5,602,440 km (0.084 R)
• M9: 6,283,559 km (0.092 R)
• M10: 9,416,438 km (0.087 R)
• M11: 13,147,110 km (0.101 R)
• M12: 13,517,065 km (0.084 R)
• M13: 33,505,136 km (0.109 R)
• M14: 37,048,511 km (0.076 R)
• M15: 37,539,042 km (0.114 R)
• M16: 42,283,838 km (0.113 R)
• M17: 43,495,581 km (0.103 R)
• M18: 47,846,186 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25.9

Radius: 7.1

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 9.05 AU - 11.63 AU

Year: 22172 Days

Day: 21.5 Hours

Environment

Temp: -246 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,355,425 km

• M1: 138,976 km (0.107 R)
• M2: 479,611 km (0.107 R)
• M3: 1,381,836 km (0.042 R)
• M4: 1,872,965 km (0.05 R)
• M5: 6,277,426 km (0.102 R)
• M6: 7,439,203 km (0.075 R)
• M7: 8,474,271 km (0.093 R)
• M8: 11,048,252 km (0.037 R)
• M9: 12,682,758 km (0.103 R)
• M10: 18,230,146 km (0.083 R)
• M11: 18,670,113 km (0.05 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 348 - 12,168 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit