🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.57 AU - 0.77 AU

Year: 349 Days

Day: 40 Hours

Environment

Temp: -141 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 36,526,450 km

• M1: 44,730 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.7

Radius: 8.4

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.66 AU - 0.98 AU

Year: 472 Days

Day: 14.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,526,450 km

• M1: 104,419 km (0.06 R)
• M2: 381,175 km (0.058 R)
• M3: 659,727 km (0.079 R)
• M4: 1,101,938 km (0.073 R)
• M5: 1,545,496 km (0.087 R)
• M6: 1,935,198 km (0.071 R)
• M7: 2,265,361 km (0.079 R)
• M8: 2,565,903 km (0.037 R)
• M9: 3,270,359 km (0.102 R)
• M10: 3,680,257 km (0.107 R)
• M11: 4,084,770 km (0.053 R)
• M12: 4,476,567 km (0.076 R)
• M13: 4,967,846 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.5

Radius: 8.3

Gravity: 9.44 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.79 AU - 0.89 AU

Year: 489 Days

Day: 6.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,526,450 km

• M1: 103,223 km (0.052 R)
• M2: 394,938 km (0.1 R)
• M3: 702,960 km (0.045 R)
• M4: 1,031,627 km (0.117 R)
• M5: 1,313,170 km (0.107 R)
• M6: 1,806,245 km (0.029 R)
• M7: 2,070,435 km (0.063 R)
• M8: 2,332,081 km (0.093 R)
• M9: 3,362,362 km (0.032 R)
• M10: 3,636,275 km (0.113 R)
• M11: 4,401,768 km (0.09 R)
• M12: 4,684,508 km (0.115 R)
• M13: 5,237,571 km (0.038 R)
• M14: 5,939,933 km (0.029 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492.9

Radius: 13

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.04 AU - 1.08 AU

Year: 694 Days

Day: 6.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,526,450 km

• M1: 161,715 km (0.101 R)
• M2: 569,519 km (0.087 R)
• M3: 975,677 km (0.065 R)
• M4: 1,516,773 km (0.083 R)
• M5: 2,091,229 km (0.077 R)
• M6: 2,625,443 km (0.109 R)
• M7: 3,105,652 km (0.04 R)
• M8: 3,539,785 km (0.103 R)
• M9: 4,158,073 km (0.119 R)
• M10: 4,594,001 km (0.114 R)
• M11: 5,211,541 km (0.093 R)
• M12: 6,184,226 km (0.075 R)
• M13: 6,633,768 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.5

Radius: 10.2

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.9 AU - 3.12 AU

Year: 2528 Days

Day: 7.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,526,450 km

• M1: 126,859 km (0.036 R)
• M2: 589,416 km (0.072 R)
• M3: 1,016,667 km (0.066 R)
• M4: 1,562,999 km (0.061 R)
• M5: 2,059,963 km (0.093 R)
• M6: 2,646,386 km (0.119 R)
• M7: 3,016,641 km (0.102 R)
• M8: 3,520,038 km (0.067 R)
• M9: 5,462,566 km (0.053 R)
• M10: 6,212,650 km (0.116 R)
• M11: 6,845,150 km (0.091 R)
• M12: 7,575,935 km (0.099 R)
• M13: 8,448,091 km (0.108 R)
• M14: 8,877,437 km (0.094 R)
• M15: 9,483,159 km (0.095 R)
• M16: 9,813,022 km (0.099 R)
• M17: 10,253,288 km (0.118 R)
• M18: 10,600,804 km (0.088 R)
• M19: 11,766,172 km (0.112 R)
• M20: 13,340,689 km (0.042 R)
• M21: 13,671,749 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.1

Radius: 13.7

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.12 AU - 3.22 AU

Year: 3589 Days

Day: 13.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,526,450 km

• M1: 170,392 km (0.118 R)
• M2: 615,296 km (0.095 R)
• M3: 1,256,173 km (0.113 R)
• M4: 1,823,000 km (0.079 R)
• M5: 2,480,333 km (0.051 R)
• M6: 3,771,811 km (0.101 R)
• M7: 4,367,211 km (0.114 R)
• M8: 7,706,684 km (0.095 R)
• M9: 11,452,016 km (0.079 R)
• M10: 12,044,723 km (0.096 R)
• M11: 13,794,120 km (0.119 R)
• M12: 16,554,650 km (0.069 R)
• M13: 17,671,398 km (0.082 R)
• M14: 18,156,394 km (0.113 R)
• M15: 21,119,779 km (0.112 R)
• M16: 23,290,144 km (0.101 R)
• M17: 25,837,497 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.7

Radius: 14.6

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 3.72 AU - 4.74 AU

Year: 5532 Days

Day: 9.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,526,450 km

• M1: 182,061 km (0.103 R)
• M2: 874,400 km (0.097 R)
• M3: 1,364,632 km (0.053 R)
• M4: 2,168,870 km (0.075 R)
• M5: 3,627,898 km (0.095 R)
• M6: 4,253,666 km (0.092 R)
• M7: 4,726,694 km (0.08 R)
• M8: 5,695,789 km (0.119 R)
• M9: 6,243,018 km (0.051 R)
• M10: 6,699,741 km (0.118 R)
• M11: 7,715,211 km (0.058 R)
• M12: 10,300,561 km (0.09 R)
• M13: 10,897,307 km (0.077 R)
• M14: 12,875,889 km (0.068 R)
• M15: 13,720,818 km (0.087 R)
• M16: 23,797,431 km (0.057 R)
• M17: 25,299,543 km (0.047 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.1

Radius: 15

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 5.46 AU - 6.34 AU

Year: 9112 Days

Day: 14.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,526,450 km

• M1: 186,549 km (0.027 R)
• M2: 659,876 km (0.083 R)
• M3: 1,359,396 km (0.115 R)
• M4: 1,843,345 km (0.1 R)
• M5: 2,834,431 km (0.095 R)
• M6: 3,475,458 km (0.092 R)
• M7: 4,349,558 km (0.111 R)
• M8: 6,211,154 km (0.09 R)
• M9: 6,759,580 km (0.042 R)
• M10: 7,420,354 km (0.105 R)
• M11: 8,470,231 km (0.05 R)
• M12: 10,454,498 km (0.117 R)
• M13: 11,233,454 km (0.051 R)
• M14: 14,806,300 km (0.093 R)
• M15: 17,167,403 km (0.075 R)
• M16: 20,320,477 km (0.092 R)
• M17: 21,452,185 km (0.111 R)
• M18: 28,740,893 km (0.052 R)
• M19: 31,425,875 km (0.057 R)
• M20: 35,644,984 km (0.074 R)
• M21: 38,131,749 km (0.09 R)
• M22: 39,977,488 km (0.117 R)
• M23: 40,605,799 km (0.062 R)
• M24: 41,624,710 km (0.093 R)
• M25: 43,581,001 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 168.8

Radius: 5.9

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 7.12 AU - 8.14 AU

Year: 13400 Days

Day: 16.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,526,450 km

• M1: 73,752 km (0.094 R)
• M2: 315,652 km (0.036 R)
• M3: 751,729 km (0.088 R)
• M4: 1,191,248 km (0.068 R)
• M5: 1,557,314 km (0.113 R)
• M6: 2,011,194 km (0.077 R)
• M7: 4,937,478 km (0.039 R)
• M8: 5,198,975 km (0.072 R)
• M9: 7,947,237 km (0.112 R)
• M10: 12,100,673 km (0.088 R)
• M11: 12,846,568 km (0.06 R)
• M12: 15,513,598 km (0.092 R)
• M13: 15,761,632 km (0.087 R)
• M14: 20,916,774 km (0.116 R)
• M15: 21,219,560 km (0.075 R)
• M16: 21,756,467 km (0.112 R)
• M17: 24,494,108 km (0.115 R)
• M18: 25,169,991 km (0.074 R)
• M19: 29,584,176 km (0.109 R)
• M20: 31,228,705 km (0.032 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 271 - 11,507 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit