🌌 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: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.41 AU - 0.61 AU

Year: 235 Days

Day: 26.2 Hours

Environment

Temp: -107 °C

Axial Tilt: 36.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.47 AU - 0.55 AU

Year: 235 Days

Day: 27.5 Hours

Environment

Temp: -118 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.3

Radius: 8.2

Gravity: 10.06 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.68 AU - 0.94 AU

Year: 471 Days

Day: 6.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,954,318 km

• M1: 102,175 km (0.089 R)
• M2: 366,664 km (0.11 R)
• M3: 693,835 km (0.098 R)
• M4: 992,731 km (0.065 R)
• M5: 1,397,693 km (0.104 R)
• M6: 2,069,088 km (0.115 R)
• M7: 2,443,980 km (0.054 R)
• M8: 2,809,897 km (0.101 R)
• M9: 3,282,776 km (0.088 R)
• M10: 3,614,135 km (0.071 R)
• M11: 4,118,280 km (0.046 R)
• M12: 5,483,061 km (0.093 R)
• M13: 5,757,124 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.8

Radius: 9.3

Gravity: 8.82 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.43 AU - 1.87 AU

Year: 1368 Days

Day: 12.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,954,318 km

• M1: 115,639 km (0.102 R)
• M2: 421,567 km (0.119 R)
• M3: 756,816 km (0.087 R)
• M4: 1,105,528 km (0.109 R)
• M5: 1,809,985 km (0.046 R)
• M6: 2,412,415 km (0.079 R)
• M7: 2,774,442 km (0.111 R)
• M8: 3,202,442 km (0.061 R)
• M9: 3,858,428 km (0.114 R)
• M10: 4,209,684 km (0.111 R)
• M11: 4,956,477 km (0.082 R)
• M12: 5,632,958 km (0.112 R)
• M13: 6,393,813 km (0.109 R)
• M14: 6,963,482 km (0.085 R)
• M15: 8,147,250 km (0.077 R)
• M16: 8,521,394 km (0.087 R)
• M17: 9,273,273 km (0.07 R)
• M18: 11,941,201 km (0.096 R)
• M19: 12,882,321 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.3

Radius: 11.8

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.11 AU - 2.49 AU

Year: 2252 Days

Day: 13 Hours

Environment

Temp: -188 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 25,954,318 km

• M1: 149,747 km (0.113 R)
• M2: 659,128 km (0.045 R)
• M3: 1,075,459 km (0.106 R)
• M4: 1,802,206 km (0.111 R)
• M5: 2,237,386 km (0.106 R)
• M6: 2,818,873 km (0.054 R)
• M7: 3,221,590 km (0.071 R)
• M8: 3,736,955 km (0.115 R)
• M9: 4,225,093 km (0.098 R)
• M10: 5,211,391 km (0.072 R)
• M11: 5,822,499 km (0.113 R)
• M12: 6,480,879 km (0.098 R)
• M13: 7,455,210 km (0.028 R)
• M14: 8,136,030 km (0.095 R)
• M15: 8,656,930 km (0.089 R)
• M16: 9,480,017 km (0.065 R)
• M17: 11,044,960 km (0.059 R)
• M18: 12,862,425 km (0.085 R)
• M19: 16,356,134 km (0.115 R)
• M20: 17,937,383 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.6

Radius: 10.5

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 2.46 AU - 3.02 AU

Year: 2928 Days

Day: 13.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,954,318 km

• M1: 130,599 km (0.085 R)
• M2: 502,649 km (0.093 R)
• M3: 1,005,896 km (0.119 R)
• M4: 1,563,747 km (0.077 R)
• M5: 2,110,377 km (0.108 R)
• M6: 3,166,089 km (0.081 R)
• M7: 4,737,316 km (0.094 R)
• M8: 5,840,450 km (0.119 R)
• M9: 7,264,024 km (0.114 R)
• M10: 9,431,847 km (0.048 R)
• M11: 10,341,701 km (0.044 R)
• M12: 10,991,853 km (0.109 R)
• M13: 12,911,044 km (0.115 R)
• M14: 13,304,187 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.9

Radius: 10.8

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.85 AU - 4.33 AU

Year: 4392 Days

Day: 12.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 25,954,318 km

• M1: 134,638 km (0.098 R)
• M2: 478,414 km (0.104 R)
• M3: 1,752,539 km (0.091 R)
• M4: 2,144,186 km (0.029 R)
• M5: 3,107,597 km (0.117 R)
• M6: 3,925,598 km (0.101 R)
• M7: 4,361,825 km (0.089 R)
• M8: 5,143,175 km (0.091 R)
• M9: 6,533,837 km (0.064 R)
• M10: 6,950,467 km (0.11 R)
• M11: 7,384,600 km (0.112 R)
• M12: 9,628,568 km (0.057 R)
• M13: 10,126,729 km (0.103 R)
• M14: 10,511,644 km (0.096 R)
• M15: 10,906,134 km (0.11 R)
• M16: 11,356,124 km (0.085 R)
• M17: 11,912,478 km (0.054 R)
• M18: 13,130,056 km (0.09 R)
• M19: 13,639,586 km (0.077 R)
• M20: 16,155,672 km (0.056 R)
• M21: 17,279,900 km (0.093 R)
• M22: 19,683,789 km (0.106 R)
• M23: 21,312,161 km (0.105 R)
• M24: 22,882,042 km (0.058 R)
• M25: 23,397,257 km (0.107 R)
• M26: 24,298,733 km (0.104 R)
• M27: 25,693,883 km (0.095 R)
• M28: 26,572,471 km (0.119 R)
• M29: 27,636,411 km (0.054 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.4

Radius: 12.3

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 3.91 AU - 5.39 AU

Year: 6474 Days

Day: 7 Hours

Environment

Temp: -218 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 25,954,318 km

• M1: 153,487 km (0.09 R)
• M2: 658,679 km (0.038 R)
• M3: 1,252,583 km (0.066 R)
• M4: 2,448,768 km (0.106 R)
• M5: 2,877,216 km (0.101 R)
• M6: 3,570,602 km (0.114 R)
• M7: 4,423,459 km (0.092 R)
• M8: 7,365,002 km (0.11 R)
• M9: 9,283,595 km (0.062 R)
• M10: 9,844,288 km (0.117 R)
• M11: 10,245,509 km (0.105 R)
• M12: 11,224,627 km (0.079 R)
• M13: 11,811,500 km (0.095 R)
• M14: 12,835,049 km (0.108 R)
• M15: 14,140,440 km (0.065 R)
• M16: 14,537,323 km (0.103 R)
• M17: 16,634,834 km (0.077 R)
• M18: 19,618,863 km (0.102 R)
• M19: 23,255,438 km (0.099 R)
• M20: 25,607,266 km (0.094 R)
• M21: 27,231,450 km (0.115 R)
• M22: 29,471,977 km (0.112 R)
• M23: 29,934,384 km (0.086 R)
• M24: 31,350,927 km (0.063 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 88.7

Radius: 5.8

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 5.7 AU - 7.6 AU

Year: 11073 Days

Day: 24.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 25,954,318 km

• M1: 72,106 km (0.097 R)
• M2: 264,040 km (0.057 R)
• M3: 448,046 km (0.117 R)
• M4: 977,173 km (0.114 R)
• M5: 1,989,652 km (0.116 R)
• M6: 2,173,358 km (0.068 R)
• M7: 2,575,028 km (0.111 R)
• M8: 3,061,520 km (0.079 R)
• M9: 4,378,281 km (0.039 R)
• M10: 5,018,261 km (0.104 R)
• M11: 6,330,533 km (0.067 R)
• M12: 9,732,538 km (0.026 R)
• M13: 10,904,039 km (0.101 R)
• M14: 12,166,645 km (0.051 R)
• M15: 12,592,251 km (0.054 R)
• M16: 13,027,880 km (0.118 R)
• M17: 13,274,118 km (0.113 R)
• M18: 14,083,293 km (0.076 R)
• M19: 16,192,474 km (0.074 R)
• M20: 20,490,271 km (0.086 R)
• M21: 25,954,333 km (0.093 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 17,097 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit