🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376.8

Radius: 11.5

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.71 AU - 0.71 AU

Year: 399 Days

Day: 9.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,280,233 km

• M1: 143,016 km (0.083 R)
• M2: 628,161 km (0.044 R)
• M3: 1,014,274 km (0.114 R)
• M4: 1,408,614 km (0.119 R)
• M5: 1,914,105 km (0.106 R)
• M6: 2,521,472 km (0.115 R)
• M7: 3,129,288 km (0.076 R)
• M8: 3,512,857 km (0.111 R)
• M9: 3,988,130 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.2

Radius: 14.3

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.54 AU - 1.86 AU

Year: 1478 Days

Day: 12.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,280,233 km

• M1: 178,919 km (0.096 R)
• M2: 662,270 km (0.108 R)
• M3: 1,142,778 km (0.117 R)
• M4: 1,683,724 km (0.088 R)
• M5: 2,737,342 km (0.094 R)
• M6: 3,214,409 km (0.047 R)
• M7: 3,681,604 km (0.065 R)
• M8: 4,735,521 km (0.077 R)
• M9: 5,281,104 km (0.116 R)
• M10: 6,143,386 km (0.066 R)
• M11: 6,744,321 km (0.119 R)
• M12: 7,305,462 km (0.097 R)
• M13: 8,550,865 km (0.068 R)
• M14: 9,270,879 km (0.072 R)
• M15: 10,969,713 km (0.028 R)
• M16: 11,532,051 km (0.109 R)
• M17: 13,100,286 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.4

Radius: 14.3

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.53 AU - 2.29 AU

Year: 1760 Days

Day: 12.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,280,233 km

• M1: 177,872 km (0.071 R)
• M2: 636,240 km (0.078 R)
• M3: 1,135,747 km (0.062 R)
• M4: 1,619,846 km (0.077 R)
• M5: 2,116,361 km (0.062 R)
• M6: 2,701,887 km (0.055 R)
• M7: 4,004,137 km (0.068 R)
• M8: 4,469,536 km (0.09 R)
• M9: 5,290,080 km (0.1 R)
• M10: 6,088,783 km (0.116 R)
• M11: 8,365,214 km (0.091 R)
• M12: 9,450,696 km (0.118 R)
• M13: 9,977,280 km (0.105 R)
• M14: 10,523,462 km (0.082 R)
• M15: 11,270,704 km (0.101 R)
• M16: 12,712,528 km (0.114 R)
• M17: 13,233,128 km (0.072 R)
• M18: 14,532,087 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713

Radius: 12.7

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 2.75 AU - 3.87 AU

Year: 4016 Days

Day: 12.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,280,233 km

• M1: 157,975 km (0.094 R)
• M2: 903,721 km (0.074 R)
• M3: 1,646,175 km (0.11 R)
• M4: 3,137,965 km (0.087 R)
• M5: 4,366,014 km (0.051 R)
• M6: 5,835,065 km (0.101 R)
• M7: 6,792,791 km (0.058 R)
• M8: 8,829,865 km (0.102 R)
• M9: 9,644,724 km (0.059 R)
• M10: 11,514,399 km (0.087 R)
• M11: 12,487,383 km (0.112 R)
• M12: 13,817,757 km (0.106 R)
• M13: 16,413,280 km (0.116 R)
• M14: 17,886,669 km (0.085 R)
• M15: 20,424,747 km (0.085 R)
• M16: 23,411,618 km (0.106 R)
• M17: 24,668,988 km (0.087 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 389.3

Radius: 4.3

Gravity: 21.05 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 5.7 AU - 6.3 AU

Year: 9801 Days

Day: 18.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 80,280,233 km

• M1: 61,036 km (0.089 R)
• M2: 317,596 km (0.085 R)
• M3: 481,556 km (0.101 R)
• M4: 664,813 km (0.07 R)
• M5: 1,007,542 km (0.118 R)
• M6: 1,359,545 km (0.051 R)
• M7: 1,716,486 km (0.105 R)
• M8: 3,500,889 km (0.089 R)
• M9: 3,861,420 km (0.033 R)
• M10: 4,219,707 km (0.087 R)
• M11: 4,434,230 km (0.111 R)
• M12: 4,712,632 km (0.038 R)
• M13: 5,617,849 km (0.107 R)
• M14: 5,877,700 km (0.069 R)
• M15: 7,568,605 km (0.092 R)
• M16: 8,006,628 km (0.075 R)
• M17: 9,604,482 km (0.085 R)
• M18: 9,882,136 km (0.11 R)
• M19: 10,165,325 km (0.113 R)
• M20: 13,073,358 km (0.119 R)
• M21: 13,357,295 km (0.051 R)
• M22: 14,173,949 km (0.115 R)
• M23: 14,899,948 km (0.078 R)
• M24: 15,714,209 km (0.1 R)
• M25: 16,623,764 km (0.108 R)
• M26: 17,294,561 km (0.1 R)
• M27: 18,547,144 km (0.118 R)
• M28: 19,341,658 km (0.084 R)
• M29: 19,933,467 km (0.061 R)
• M30: 20,234,010 km (0.116 R)
• M31: 22,910,914 km (0.086 R)
• M32: 23,489,858 km (0.12 R)
• M33: 34,881,885 km (0.105 R)
• M34: 38,590,566 km (0.045 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 70.6

Radius: 4.1

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 6.02 AU - 6.2 AU

Year: 10071 Days

Day: 16.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 80,280,233 km

• M1: 51,462 km (0.101 R)
• M2: 186,848 km (0.1 R)
• M3: 321,486 km (0.079 R)
• M4: 647,160 km (0.106 R)
• M5: 782,397 km (0.113 R)
• M6: 1,287,290 km (0.063 R)
• M7: 2,511,599 km (0.091 R)
• M8: 3,657,967 km (0.101 R)
• M9: 3,881,766 km (0.119 R)
• M10: 5,240,563 km (0.114 R)
• M11: 7,484,381 km (0.105 R)
• M12: 7,614,232 km (0.101 R)
• M13: 8,815,354 km (0.118 R)
• M14: 9,106,621 km (0.1 R)
• M15: 12,564,127 km (0.098 R)
• M16: 13,644,223 km (0.056 R)
• M17: 14,182,028 km (0.077 R)
• M18: 21,779,056 km (0.089 R)
• M19: 22,445,515 km (0.04 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602.5

Radius: 3.1

Gravity: 62.7 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 8.78 AU - 12.48 AU

Year: 23112 Days

Day: 22.2 Hours

Environment

Temp: -244 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 80,280,233 km

• M1: 38,596 km (0.113 R)
• M2: 1,093,261 km (0.072 R)
• M3: 2,594,625 km (0.103 R)
• M4: 3,192,419 km (0.073 R)
• M5: 3,940,408 km (0.044 R)
• M6: 4,202,653 km (0.075 R)
• M7: 4,761,850 km (0.116 R)
• M8: 6,154,905 km (0.084 R)
• M9: 9,421,225 km (0.106 R)
• M10: 10,871,576 km (0.111 R)
• M11: 11,062,763 km (0.045 R)
• M12: 11,917,266 km (0.059 R)
• M13: 13,171,494 km (0.093 R)
• M14: 14,130,267 km (0.048 R)
• M15: 15,857,225 km (0.108 R)
• M16: 16,855,940 km (0.113 R)
• M17: 17,026,482 km (0.101 R)
• M18: 17,544,689 km (0.062 R)
• M19: 17,807,682 km (0.108 R)
• M20: 28,395,471 km (0.09 R)
• M21: 31,899,801 km (0.113 R)
• M22: 41,897,427 km (0.075 R)
• M23: 43,636,951 km (0.12 R)
• M24: 47,598,153 km (0.114 R)
• M25: 49,491,164 km (0.12 R)
• M26: 54,349,056 km (0.118 R)
• M27: 55,658,337 km (0.119 R)
• M28: 56,797,375 km (0.119 R)
• M29: 59,910,357 km (0.059 R)
• M30: 66,685,944 km (0.11 R)
• M31: 73,499,678 km (0.112 R)
• M32: 74,640,362 km (0.116 R)
• M33: 74,869,994 km (0.11 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 278 - 18,258 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit