🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.4

Radius: 13.2

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.44 AU - 0.66 AU

Year: 277 Days

Day: 13.5 Hours

Environment

Temp: -137 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 57,163,975 km

• M1: 164,857 km (0.114 R)
• M2: 653,593 km (0.1 R)
• M3: 1,215,184 km (0.102 R)
• M4: 1,685,370 km (0.069 R)
• M5: 2,285,257 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.4

Radius: 12.8

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.25 AU - 1.63 AU

Year: 1172 Days

Day: 13.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,163,975 km

• M1: 159,172 km (0.098 R)
• M2: 668,852 km (0.061 R)
• M3: 1,378,844 km (0.109 R)
• M4: 2,469,412 km (0.066 R)
• M5: 2,953,212 km (0.05 R)
• M6: 4,601,481 km (0.114 R)
• M7: 5,161,875 km (0.098 R)
• M8: 5,635,053 km (0.053 R)
• M9: 6,338,312 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.7

Radius: 11.7

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.07 AU - 2.15 AU

Year: 2079 Days

Day: 10.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,163,975 km

• M1: 146,008 km (0.043 R)
• M2: 578,645 km (0.095 R)
• M3: 1,185,264 km (0.115 R)
• M4: 2,052,333 km (0.081 R)
• M5: 2,636,962 km (0.097 R)
• M6: 3,953,722 km (0.109 R)
• M7: 4,899,181 km (0.066 R)
• M8: 5,668,263 km (0.118 R)
• M9: 6,712,905 km (0.101 R)
• M10: 7,931,230 km (0.11 R)
• M11: 9,346,725 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.3

Radius: 14

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.61 AU - 2.75 AU

Year: 2976 Days

Day: 9.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,163,975 km

• M1: 174,132 km (0.038 R)
• M2: 611,406 km (0.096 R)
• M3: 1,293,722 km (0.114 R)
• M4: 2,418,549 km (0.067 R)
• M5: 3,119,564 km (0.083 R)
• M6: 3,556,989 km (0.11 R)
• M7: 4,580,537 km (0.098 R)
• M8: 5,425,765 km (0.103 R)
• M9: 6,231,051 km (0.101 R)
• M10: 7,363,955 km (0.098 R)
• M11: 7,979,850 km (0.117 R)
• M12: 8,735,917 km (0.092 R)
• M13: 9,204,757 km (0.118 R)
• M14: 10,795,132 km (0.114 R)
• M15: 11,335,779 km (0.073 R)
• M16: 12,292,008 km (0.085 R)
• M17: 13,348,468 km (0.09 R)
• M18: 14,069,530 km (0.058 R)
• M19: 15,432,816 km (0.113 R)
• M20: 17,104,871 km (0.105 R)
• M21: 19,989,716 km (0.097 R)
• M22: 20,934,128 km (0.099 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 485.7

Radius: 4.3

Gravity: 26.27 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 7.25 AU - 9.03 AU

Year: 15752 Days

Day: 16.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 57,163,975 km

• M1: 68,665 km (0.109 R)
• M2: 277,205 km (0.088 R)
• M3: 558,898 km (0.046 R)
• M4: 1,057,807 km (0.118 R)
• M5: 1,492,837 km (0.07 R)
• M6: 1,677,591 km (0.083 R)
• M7: 2,285,855 km (0.097 R)
• M8: 2,489,907 km (0.09 R)
• M9: 3,865,459 km (0.114 R)
• M10: 4,155,679 km (0.11 R)
• M11: 4,617,787 km (0.111 R)
• M12: 5,079,446 km (0.101 R)
• M13: 9,207,300 km (0.115 R)
• M14: 10,043,702 km (0.109 R)
• M15: 10,703,428 km (0.05 R)
• M16: 11,450,221 km (0.043 R)
• M17: 15,929,780 km (0.052 R)
• M18: 16,901,567 km (0.098 R)
• M19: 17,131,350 km (0.053 R)
• M20: 17,991,538 km (0.081 R)
• M21: 18,151,009 km (0.098 R)
• M22: 25,732,779 km (0.116 R)
• M23: 29,541,840 km (0.072 R)
• M24: 33,709,935 km (0.027 R)
• M25: 42,479,213 km (0.041 R)
• M26: 50,405,806 km (0.103 R)
• M27: 53,142,998 km (0.113 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 265.8

Radius: 3

Gravity: 29.53 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 8.43 AU - 11.51 AU

Year: 21352 Days

Day: 20.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 57,163,975 km

• M1: 40,990 km (0.113 R)
• M2: 176,675 km (0.116 R)
• M3: 297,550 km (0.098 R)
• M4: 404,064 km (0.115 R)
• M5: 629,358 km (0.106 R)
• M6: 1,127,669 km (0.035 R)
• M7: 1,255,276 km (0.12 R)
• M8: 1,392,607 km (0.074 R)
• M9: 1,917,994 km (0.04 R)
• M10: 2,294,233 km (0.091 R)
• M11: 2,585,650 km (0.106 R)
• M12: 3,885,805 km (0.094 R)
• M13: 6,090,578 km (0.11 R)
• M14: 6,207,115 km (0.087 R)
• M15: 7,149,432 km (0.112 R)
• M16: 7,858,675 km (0.111 R)
• M17: 8,859,036 km (0.116 R)
• M18: 9,675,990 km (0.107 R)
• M19: 11,399,507 km (0.047 R)
• M20: 13,316,903 km (0.11 R)
• M21: 13,447,502 km (0.112 R)
• M22: 19,234,995 km (0.076 R)
• M23: 19,908,634 km (0.119 R)
• M24: 25,069,312 km (0.114 R)
• M25: 26,280,456 km (0.091 R)
• M26: 28,276,690 km (0.113 R)
• M27: 28,927,591 km (0.109 R)
• M28: 29,810,667 km (0.033 R)
• M29: 47,240,614 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 238.7

Radius: 3.9

Gravity: 15.69 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 10.15 AU - 10.23 AU

Year: 22062 Days

Day: 18 Hours

Environment

Temp: -230 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,163,975 km

• M1: 56,548 km (0.101 R)
• M2: 300,393 km (0.08 R)
• M3: 1,040,752 km (0.08 R)
• M4: 1,412,802 km (0.053 R)
• M5: 1,544,748 km (0.056 R)
• M6: 1,833,621 km (0.107 R)
• M7: 2,215,096 km (0.027 R)
• M8: 2,965,030 km (0.119 R)
• M9: 3,568,508 km (0.116 R)
• M10: 4,685,256 km (0.099 R)
• M11: 5,047,731 km (0.068 R)
• M12: 7,060,122 km (0.116 R)
• M13: 9,602,987 km (0.092 R)
• M14: 10,793,786 km (0.085 R)
• M15: 16,394,431 km (0.109 R)
• M16: 17,303,687 km (0.027 R)
• M17: 19,555,284 km (0.099 R)
• M18: 22,450,452 km (0.112 R)
• M19: 25,719,315 km (0.051 R)
• M20: 27,257,181 km (0.112 R)
• M21: 27,783,017 km (0.093 R)
• M22: 28,638,568 km (0.114 R)
• M23: 28,855,185 km (0.108 R)
• M24: 34,509,237 km (0.073 R)
• M25: 35,872,522 km (0.101 R)
• M26: 52,823,756 km (0.074 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: 407 - 15,913 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit