🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.61 AU - 0.61 AU

Year: 308 Days

Day: 47.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 11.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 55,233,894 km

• M1: 58,194 km (0.104 R)
• M2: 385,364 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.9

Radius: 14.7

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.85 AU - 0.91 AU

Year: 533 Days

Day: 6.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,233,894 km

• M1: 183,108 km (0.106 R)
• M2: 673,190 km (0.088 R)
• M3: 1,530,985 km (0.08 R)
• M4: 1,991,447 km (0.102 R)
• M5: 2,593,877 km (0.097 R)
• M6: 3,328,702 km (0.109 R)
• M7: 3,897,473 km (0.06 R)
• M8: 4,836,050 km (0.088 R)
• M9: 5,423,521 km (0.069 R)

Asteroid Belt

Center: 1.62 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.6

Radius: 14.8

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.91 AU - 2.79 AU

Year: 2326 Days

Day: 7 Hours

Environment

Temp: -192 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,233,894 km

• M1: 198,516 km (0.075 R)
• M2: 949,797 km (0.12 R)
• M3: 1,468,453 km (0.094 R)
• M4: 1,944,772 km (0.075 R)
• M5: 2,895,467 km (0.093 R)
• M6: 3,413,075 km (0.092 R)
• M7: 4,269,074 km (0.096 R)
• M8: 5,007,190 km (0.03 R)
• M9: 5,712,993 km (0.099 R)
• M10: 7,215,853 km (0.092 R)
• M11: 7,828,606 km (0.117 R)
• M12: 8,689,392 km (0.055 R)
• M13: 9,678,384 km (0.085 R)
• M14: 10,149,168 km (0.056 R)
• M15: 11,209,668 km (0.064 R)
• M16: 12,617,982 km (0.12 R)
• M17: 13,718,125 km (0.061 R)
• M18: 14,661,040 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.8

Radius: 10.7

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.41 AU - 2.95 AU

Year: 2833 Days

Day: 12.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,233,894 km

• M1: 133,142 km (0.078 R)
• M2: 561,890 km (0.069 R)
• M3: 980,016 km (0.057 R)
• M4: 1,489,995 km (0.1 R)
• M5: 2,383,393 km (0.084 R)
• M6: 2,931,969 km (0.118 R)
• M7: 3,392,730 km (0.119 R)
• M8: 3,799,786 km (0.079 R)
• M9: 4,348,960 km (0.106 R)
• M10: 4,689,295 km (0.088 R)
• M11: 5,221,115 km (0.106 R)
• M12: 6,938,648 km (0.07 R)
• M13: 9,224,354 km (0.098 R)
• M14: 9,866,279 km (0.054 R)
• M15: 10,337,213 km (0.113 R)
• M16: 13,106,718 km (0.066 R)
• M17: 13,580,196 km (0.078 R)
• M18: 15,379,858 km (0.075 R)
• M19: 21,530,126 km (0.029 R)
• M20: 22,256,573 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416

Radius: 12.2

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.48 AU - 3.52 AU

Year: 3355 Days

Day: 8.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,233,894 km

• M1: 153,637 km (0.096 R)
• M2: 825,481 km (0.056 R)
• M3: 1,235,828 km (0.084 R)
• M4: 2,069,387 km (0.078 R)
• M5: 2,481,978 km (0.108 R)
• M6: 3,696,713 km (0.118 R)
• M7: 6,512,594 km (0.098 R)
• M8: 7,624,106 km (0.08 R)
• M9: 8,096,237 km (0.084 R)
• M10: 8,521,244 km (0.032 R)
• M11: 11,392,327 km (0.107 R)
• M12: 12,094,689 km (0.075 R)
• M13: 15,693,565 km (0.075 R)
• M14: 16,252,761 km (0.066 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 244.9

Radius: 3.4

Gravity: 21.19 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 4.65 AU - 7.57 AU

Year: 9752 Days

Day: 16 Hours

Environment

Temp: -217 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 55,233,894 km

• M1: 42,336 km (0.081 R)
• M2: 209,287 km (0.078 R)
• M3: 1,666,969 km (0.075 R)
• M4: 2,164,681 km (0.091 R)
• M5: 2,413,163 km (0.119 R)
• M6: 2,680,345 km (0.106 R)
• M7: 2,792,543 km (0.063 R)
• M8: 2,947,078 km (0.074 R)
• M9: 3,600,522 km (0.111 R)
• M10: 3,783,779 km (0.065 R)
• M11: 3,949,085 km (0.083 R)
• M12: 4,849,514 km (0.11 R)
• M13: 7,477,949 km (0.039 R)
• M14: 10,363,692 km (0.097 R)
• M15: 15,534,841 km (0.12 R)
• M16: 16,453,223 km (0.051 R)
• M17: 17,602,134 km (0.089 R)
• M18: 23,517,384 km (0.087 R)
• M19: 25,554,009 km (0.086 R)
• M20: 27,091,127 km (0.106 R)
• M21: 27,265,708 km (0.048 R)
• M22: 28,598,475 km (0.111 R)
• M23: 29,052,206 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 755.4

Radius: 7.8

Gravity: 12.42 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 6.3 AU - 7.56 AU

Year: 11779 Days

Day: 22.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 55,233,894 km

• M1: 96,939 km (0.106 R)
• M2: 622,327 km (0.1 R)
• M3: 868,715 km (0.115 R)
• M4: 1,307,336 km (0.055 R)
• M5: 3,122,407 km (0.09 R)
• M6: 4,359,581 km (0.099 R)
• M7: 4,923,116 km (0.116 R)
• M8: 6,865,794 km (0.063 R)
• M9: 7,849,699 km (0.034 R)
• M10: 8,259,298 km (0.115 R)
• M11: 8,540,094 km (0.104 R)
• M12: 10,147,523 km (0.027 R)
• M13: 12,186,093 km (0.093 R)
• M14: 14,081,648 km (0.067 R)
• M15: 15,238,937 km (0.042 R)
• M16: 17,205,401 km (0.05 R)
• M17: 20,166,541 km (0.108 R)
• M18: 22,621,442 km (0.111 R)
• M19: 23,079,810 km (0.086 R)
• M20: 28,967,084 km (0.109 R)
• M21: 29,835,201 km (0.06 R)
• M22: 34,438,178 km (0.105 R)
• M23: 38,705,307 km (0.094 R)
• M24: 39,493,239 km (0.106 R)
• M25: 41,509,669 km (0.044 R)
• M26: 42,612,804 km (0.107 R)
• M27: 46,185,799 km (0.075 R)
• M28: 47,669,212 km (0.105 R)
• M29: 51,832,670 km (0.118 R)
• M30: 52,629,428 km (0.104 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 154 - 17,128 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit