🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.43 AU - 0.65 AU

Year: 260 Days

Day: 32.8 Hours

Environment

Temp: -125 °C

Axial Tilt: 10.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,352,811 km

• M1: 41,887 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.54 AU - 0.58 AU

Year: 275 Days

Day: 37.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 8.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.5

Radius: 14.9

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.79 AU - 1.11 AU

Year: 607 Days

Day: 8.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,352,811 km

• M1: 185,352 km (0.098 R)
• M2: 788,530 km (0.098 R)
• M3: 1,513,482 km (0.073 R)
• M4: 2,399,699 km (0.119 R)
• M5: 3,082,464 km (0.088 R)
• M6: 3,750,568 km (0.064 R)
• M7: 4,218,361 km (0.093 R)
• M8: 4,824,681 km (0.082 R)
• M9: 5,489,045 km (0.078 R)
• M10: 6,852,031 km (0.106 R)
• M11: 7,443,092 km (0.116 R)
• M12: 7,973,417 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.5

Radius: 10.8

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.92 AU - 2.68 AU

Year: 2288 Days

Day: 8.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,352,811 km

• M1: 134,638 km (0.074 R)
• M2: 561,740 km (0.114 R)
• M3: 927,507 km (0.093 R)
• M4: 1,334,263 km (0.118 R)
• M5: 2,535,534 km (0.115 R)
• M6: 2,999,138 km (0.116 R)
• M7: 3,553,249 km (0.116 R)
• M8: 4,824,083 km (0.079 R)
• M9: 6,402,340 km (0.095 R)
• M10: 6,988,764 km (0.09 R)
• M11: 7,581,620 km (0.11 R)
• M12: 9,360,937 km (0.098 R)
• M13: 9,941,676 km (0.093 R)
• M14: 11,175,260 km (0.118 R)
• M15: 13,297,904 km (0.086 R)
• M16: 14,884,689 km (0.1 R)
• M17: 15,866,799 km (0.057 R)
• M18: 16,349,252 km (0.066 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 964.9

Radius: 6.2

Gravity: 25.1 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 7.5 AU - 8.48 AU

Year: 14816 Days

Day: 15.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 66,352,811 km

• M1: 77,193 km (0.097 R)
• M2: 303,235 km (0.052 R)
• M3: 511,625 km (0.113 R)
• M4: 704,756 km (0.031 R)
• M5: 1,053,468 km (0.093 R)
• M6: 2,075,820 km (0.108 R)
• M7: 2,629,781 km (0.118 R)
• M8: 3,119,415 km (0.067 R)
• M9: 3,413,674 km (0.088 R)
• M10: 3,726,184 km (0.048 R)
• M11: 5,245,051 km (0.065 R)
• M12: 5,700,726 km (0.12 R)
• M13: 6,691,064 km (0.08 R)
• M14: 10,286,499 km (0.026 R)
• M15: 12,001,788 km (0.064 R)
• M16: 13,899,288 km (0.115 R)
• M17: 15,144,092 km (0.107 R)
• M18: 18,191,849 km (0.113 R)
• M19: 18,794,728 km (0.039 R)
• M20: 19,233,349 km (0.087 R)
• M21: 24,832,499 km (0.054 R)
• M22: 25,681,167 km (0.112 R)
• M23: 26,330,272 km (0.087 R)
• M24: 27,661,245 km (0.104 R)
• M25: 29,504,739 km (0.093 R)
• M26: 36,600,914 km (0.105 R)
• M27: 43,675,398 km (0.079 R)
• M28: 49,750,567 km (0.036 R)
• M29: 51,438,181 km (0.075 R)
• M30: 52,123,788 km (0.113 R)
• M31: 54,040,436 km (0.084 R)
• M32: 58,570,409 km (0.068 R)
• M33: 62,177,662 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 246.9

Radius: 5.8

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 7.29 AU - 11.09 AU

Year: 18276 Days

Day: 19.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,352,811 km

• M1: 75,846 km (0.069 R)
• M2: 724,502 km (0.086 R)
• M3: 6,026,101 km (0.042 R)
• M4: 6,210,705 km (0.066 R)
• M5: 7,314,737 km (0.098 R)
• M6: 9,853,713 km (0.102 R)
• M7: 10,162,034 km (0.105 R)
• M8: 10,636,708 km (0.079 R)
• M9: 16,082,818 km (0.102 R)
• M10: 22,336,458 km (0.075 R)
• M11: 23,866,246 km (0.111 R)
• M12: 24,515,949 km (0.097 R)
• M13: 36,822,469 km (0.116 R)
• M14: 39,335,863 km (0.037 R)
• M15: 46,544,984 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 486.3

Radius: 3.8

Gravity: 33.68 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 9.04 AU - 10.04 AU

Year: 19330 Days

Day: 22.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 66,352,811 km

• M1: 64,626 km (0.08 R)
• M2: 249,380 km (0.079 R)
• M3: 408,701 km (0.091 R)
• M4: 753,225 km (0.116 R)
• M5: 1,058,555 km (0.108 R)
• M6: 1,267,244 km (0.054 R)
• M7: 1,518,418 km (0.109 R)
• M8: 2,865,846 km (0.112 R)
• M9: 3,038,782 km (0.099 R)
• M10: 4,010,719 km (0.072 R)
• M11: 4,752,126 km (0.114 R)
• M12: 4,959,768 km (0.049 R)
• M13: 5,618,746 km (0.037 R)
• M14: 5,772,832 km (0.081 R)
• M15: 6,757,037 km (0.075 R)
• M16: 7,288,857 km (0.116 R)
• M17: 7,565,015 km (0.11 R)
• M18: 7,752,910 km (0.099 R)
• M19: 8,385,260 km (0.063 R)
• M20: 11,139,057 km (0.081 R)
• M21: 13,186,005 km (0.034 R)
• M22: 15,773,450 km (0.101 R)
• M23: 16,157,617 km (0.034 R)
• M24: 18,256,475 km (0.115 R)
• M25: 20,439,258 km (0.114 R)
• M26: 22,498,921 km (0.117 R)
• M27: 23,578,719 km (0.102 R)
• M28: 23,778,731 km (0.044 R)
• M29: 25,419,521 km (0.106 R)
• M30: 28,131,880 km (0.11 R)
• M31: 28,583,067 km (0.1 R)
• M32: 28,924,599 km (0.081 R)
• M33: 29,848,665 km (0.077 R)
• M34: 30,554,468 km (0.07 R)
• M35: 31,755,290 km (0.098 R)
• M36: 33,488,979 km (0.095 R)
• M37: 35,677,746 km (0.071 R)
• M38: 38,788,035 km (0.105 R)
• M39: 39,910,917 km (0.04 R)
• M40: 44,162,937 km (0.077 R)
• M41: 50,178,118 km (0.106 R)
• M42: 57,436,307 km (0.114 R)
• M43: 65,560,369 km (0.086 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 161 - 19,330 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit