🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602.9

Radius: 14.2

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.47 AU - 0.67 AU

Year: 287 Days

Day: 10.2 Hours

Environment

Temp: -138 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,156,754 km

• M1: 176,525 km (0.066 R)
• M2: 698,921 km (0.119 R)
• M3: 1,274,275 km (0.102 R)
• M4: 1,802,804 km (0.076 R)
• M5: 2,282,864 km (0.047 R)
• M6: 2,793,740 km (0.108 R)
• M7: 3,319,128 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.2

Radius: 12.9

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.64 AU - 0.92 AU

Year: 459 Days

Day: 7.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 67,156,754 km

• M1: 161,117 km (0.026 R)
• M2: 658,380 km (0.109 R)
• M3: 1,146,368 km (0.119 R)
• M4: 1,670,559 km (0.061 R)
• M5: 2,130,124 km (0.063 R)
• M6: 2,540,920 km (0.09 R)
• M7: 3,025,019 km (0.108 R)
• M8: 3,493,409 km (0.104 R)
• M9: 3,926,645 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950

Radius: 9

Gravity: 11.73 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.82 AU - 0.94 AU

Year: 550 Days

Day: 7.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,156,754 km

• M1: 112,647 km (0.089 R)
• M2: 444,455 km (0.107 R)
• M3: 730,786 km (0.113 R)
• M4: 1,025,344 km (0.034 R)
• M5: 1,345,932 km (0.073 R)
• M6: 1,742,217 km (0.075 R)
• M7: 2,415,108 km (0.117 R)
• M8: 3,126,595 km (0.104 R)
• M9: 3,646,747 km (0.028 R)
• M10: 3,956,864 km (0.051 R)
• M11: 4,826,775 km (0.068 R)
• M12: 5,219,021 km (0.103 R)
• M13: 5,971,049 km (0.069 R)
• M14: 6,303,456 km (0.071 R)
• M15: 7,177,706 km (0.088 R)
• M16: 7,621,563 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.9

Radius: 13.1

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.35 AU - 2.13 AU

Year: 1531 Days

Day: 14.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,156,754 km

• M1: 179,069 km (0.049 R)
• M2: 636,090 km (0.069 R)
• M3: 1,574,218 km (0.07 R)
• M4: 2,030,342 km (0.106 R)
• M5: 2,505,166 km (0.095 R)
• M6: 2,922,544 km (0.115 R)
• M7: 4,294,356 km (0.117 R)
• M8: 5,357,848 km (0.067 R)
• M9: 5,825,640 km (0.106 R)
• M10: 6,750,604 km (0.097 R)
• M11: 9,905,922 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224

Radius: 11.6

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.17 AU - 2.21 AU

Year: 2161 Days

Day: 8.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 56.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,156,754 km

• M1: 144,212 km (0.071 R)
• M2: 593,904 km (0.062 R)
• M3: 1,071,869 km (0.1 R)
• M4: 1,569,132 km (0.115 R)
• M5: 2,141,942 km (0.1 R)
• M6: 2,594,177 km (0.116 R)
• M7: 3,238,495 km (0.108 R)
• M8: 4,071,306 km (0.091 R)
• M9: 6,789,350 km (0.107 R)
• M10: 7,207,625 km (0.057 R)
• M11: 8,014,856 km (0.112 R)
• M12: 10,027,545 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.8

Radius: 11.9

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.02 AU - 2.5 AU

Year: 2266 Days

Day: 7.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,156,754 km

• M1: 154,235 km (0.116 R)
• M2: 530,324 km (0.098 R)
• M3: 1,283,101 km (0.12 R)
• M4: 1,917,845 km (0.103 R)
• M5: 2,695,305 km (0.112 R)
• M6: 3,076,779 km (0.113 R)
• M7: 4,104,517 km (0.042 R)
• M8: 6,884,045 km (0.111 R)
• M9: 7,784,325 km (0.059 R)
• M10: 9,607,474 km (0.118 R)
• M11: 10,176,994 km (0.1 R)
• M12: 10,958,642 km (0.056 R)
• M13: 12,308,464 km (0.111 R)
• M14: 14,676,000 km (0.081 R)
• M15: 16,716,216 km (0.058 R)
• M16: 17,698,625 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.5

Radius: 10.7

Gravity: 7.47 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 4.03 AU - 4.87 AU

Year: 6260 Days

Day: 13.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 67,156,754 km

• M1: 133,142 km (0.103 R)
• M2: 561,890 km (0.087 R)
• M3: 1,265,299 km (0.103 R)
• M4: 1,652,009 km (0.116 R)
• M5: 2,134,014 km (0.09 R)
• M6: 2,633,521 km (0.07 R)
• M7: 2,981,934 km (0.081 R)
• M8: 3,317,632 km (0.085 R)
• M9: 4,698,420 km (0.088 R)
• M10: 5,896,998 km (0.052 R)
• M11: 6,395,459 km (0.06 R)
• M12: 6,885,990 km (0.062 R)
• M13: 7,326,257 km (0.1 R)
• M14: 7,668,836 km (0.088 R)
• M15: 9,190,994 km (0.105 R)
• M16: 10,662,139 km (0.116 R)
• M17: 14,896,657 km (0.099 R)
• M18: 16,076,386 km (0.048 R)
• M19: 19,915,366 km (0.116 R)
• M20: 21,733,429 km (0.051 R)
• M21: 22,204,662 km (0.101 R)
• M22: 27,118,354 km (0.08 R)
• M23: 29,347,961 km (0.052 R)
• M24: 30,703,467 km (0.087 R)
• M25: 32,711,968 km (0.105 R)
• M26: 35,020,712 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 996.2

Radius: 6.6

Gravity: 22.87 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.32 AU - 8.72 AU

Year: 13752 Days

Day: 15.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,156,754 km

• M1: 82,877 km (0.107 R)
• M2: 659,876 km (0.043 R)
• M3: 997,818 km (0.067 R)
• M4: 1,247,497 km (0.079 R)
• M5: 2,957,849 km (0.083 R)
• M6: 5,952,948 km (0.111 R)
• M7: 6,317,368 km (0.088 R)
• M8: 10,999,931 km (0.105 R)
• M9: 11,363,753 km (0.03 R)
• M10: 13,510,483 km (0.096 R)
• M11: 15,232,055 km (0.1 R)
• M12: 15,608,294 km (0.112 R)
• M13: 17,256,414 km (0.111 R)
• M14: 17,747,843 km (0.096 R)
• M15: 21,830,518 km (0.086 R)
• M16: 24,190,424 km (0.12 R)
• M17: 26,715,038 km (0.103 R)
• M18: 27,928,875 km (0.116 R)
• M19: 28,948,983 km (0.052 R)
• M20: 29,178,915 km (0.044 R)
• M21: 36,929,730 km (0.069 R)
• M22: 38,851,913 km (0.114 R)
• M23: 45,791,609 km (0.1 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 210 - 15,449 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit