🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.9

Radius: 9.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.62 AU - 0.76 AU

Year: 396 Days

Day: 10.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 63,687,925 km

• M1: 118,631 km (0.107 R)
• M2: 426,653 km (0.084 R)
• M3: 809,474 km (0.083 R)
• M4: 2,159,296 km (0.096 R)
• M5: 2,762,175 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.4

Radius: 12.5

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.69 AU - 0.73 AU

Year: 413 Days

Day: 14.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,687,925 km

• M1: 155,582 km (0.109 R)
• M2: 567,724 km (0.064 R)
• M3: 1,156,392 km (0.071 R)
• M4: 1,748,650 km (0.085 R)
• M5: 2,156,154 km (0.117 R)
• M6: 2,567,548 km (0.049 R)
• M7: 3,088,149 km (0.108 R)
• M8: 3,577,334 km (0.105 R)
• M9: 4,474,173 km (0.1 R)
• M10: 4,882,127 km (0.094 R)
• M11: 5,364,580 km (0.084 R)
• M12: 6,093,720 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.1

Radius: 10.6

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.66 AU - 2 AU

Year: 1709 Days

Day: 7.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 63,687,925 km

• M1: 131,796 km (0.105 R)
• M2: 589,416 km (0.117 R)
• M3: 1,039,556 km (0.106 R)
• M4: 1,819,110 km (0.048 R)
• M5: 2,893,073 km (0.079 R)
• M6: 3,273,949 km (0.102 R)
• M7: 3,653,928 km (0.12 R)
• M8: 4,100,478 km (0.042 R)
• M9: 4,603,276 km (0.092 R)
• M10: 5,686,065 km (0.073 R)
• M11: 6,312,432 km (0.087 R)
• M12: 6,720,385 km (0.084 R)
• M13: 7,476,752 km (0.101 R)
• M14: 8,021,737 km (0.112 R)
• M15: 8,904,364 km (0.107 R)
• M16: 10,261,068 km (0.119 R)
• M17: 11,080,116 km (0.112 R)
• M18: 12,807,822 km (0.043 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.4

Radius: 10.7

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.56 AU - 2.36 AU

Year: 1894 Days

Day: 11.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,687,925 km

• M1: 152,739 km (0.079 R)
• M2: 697,874 km (0.084 R)
• M3: 1,079,648 km (0.108 R)
• M4: 1,986,361 km (0.1 R)
• M5: 2,350,482 km (0.106 R)
• M6: 3,340,520 km (0.047 R)
• M7: 4,147,152 km (0.083 R)
• M8: 4,928,053 km (0.114 R)
• M9: 6,577,519 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.3

Radius: 10.4

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.58 AU - 4.62 AU

Year: 5730 Days

Day: 11.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 63,687,925 km

• M1: 129,402 km (0.091 R)
• M2: 822,040 km (0.084 R)
• M3: 1,345,782 km (0.082 R)
• M4: 1,965,716 km (0.113 R)
• M5: 2,570,091 km (0.084 R)
• M6: 5,089,768 km (0.047 R)
• M7: 7,068,948 km (0.104 R)
• M8: 8,327,964 km (0.03 R)
• M9: 8,928,599 km (0.075 R)
• M10: 9,600,892 km (0.067 R)
• M11: 10,306,545 km (0.109 R)
• M12: 10,952,060 km (0.114 R)
• M13: 11,477,897 km (0.048 R)
• M14: 11,920,706 km (0.045 R)
• M15: 12,272,860 km (0.109 R)
• M16: 13,157,282 km (0.03 R)
• M17: 14,763,215 km (0.12 R)
• M18: 15,823,565 km (0.078 R)
• M19: 17,187,599 km (0.061 R)
• M20: 21,157,178 km (0.045 R)
• M21: 21,748,838 km (0.096 R)
• M22: 22,124,179 km (0.041 R)
• M23: 25,119,577 km (0.047 R)
• M24: 27,144,833 km (0.107 R)
• M25: 29,185,797 km (0.062 R)
• M26: 29,918,976 km (0.083 R)
• M27: 31,709,662 km (0.084 R)
• M28: 32,095,625 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.2

Radius: 9.6

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.64 AU - 5.72 AU

Year: 6988 Days

Day: 10.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,687,925 km

• M1: 129,552 km (0.073 R)
• M2: 703,409 km (0.093 R)
• M3: 1,010,384 km (0.054 R)
• M4: 1,527,993 km (0.086 R)
• M5: 2,215,245 km (0.064 R)
• M6: 3,322,718 km (0.095 R)
• M7: 5,839,403 km (0.09 R)
• M8: 6,351,327 km (0.094 R)
• M9: 6,720,385 km (0.087 R)
• M10: 7,687,535 km (0.089 R)
• M11: 9,719,673 km (0.098 R)
• M12: 11,339,818 km (0.108 R)
• M13: 11,734,008 km (0.117 R)
• M14: 12,865,566 km (0.09 R)
• M15: 14,294,825 km (0.086 R)
• M16: 15,106,842 km (0.114 R)
• M17: 22,359,347 km (0.072 R)
• M18: 23,058,417 km (0.098 R)
• M19: 23,373,620 km (0.113 R)
• M20: 24,663,752 km (0.086 R)
• M21: 26,000,708 km (0.097 R)
• M22: 29,553,658 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.1

Radius: 10.2

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.3 AU - 5.08 AU

Year: 7011 Days

Day: 5.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,687,925 km

• M1: 127,009 km (0.09 R)
• M2: 551,418 km (0.085 R)
• M3: 1,238,222 km (0.082 R)
• M4: 1,924,128 km (0.102 R)
• M5: 2,443,532 km (0.102 R)
• M6: 3,764,481 km (0.077 R)
• M7: 4,206,991 km (0.107 R)
• M8: 5,777,021 km (0.101 R)
• M9: 6,529,498 km (0.059 R)
• M10: 7,135,669 km (0.09 R)
• M11: 8,344,120 km (0.101 R)
• M12: 8,775,860 km (0.049 R)
• M13: 10,205,417 km (0.12 R)
• M14: 11,209,518 km (0.069 R)
• M15: 12,178,314 km (0.094 R)
• M16: 13,466,651 km (0.119 R)
• M17: 16,312,301 km (0.116 R)
• M18: 25,787,531 km (0.11 R)
• M19: 27,128,975 km (0.101 R)
• M20: 28,870,594 km (0.043 R)
• M21: 30,592,914 km (0.088 R)
• M22: 31,338,211 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 589.8

Radius: 5.4

Gravity: 20.23 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 7.71 AU - 8.89 AU

Year: 16505 Days

Day: 21.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 63,687,925 km

• M1: 67,319 km (0.098 R)
• M2: 295,007 km (0.077 R)
• M3: 538,852 km (0.102 R)
• M4: 1,264,551 km (0.118 R)
• M5: 1,434,045 km (0.067 R)
• M6: 1,651,112 km (0.096 R)
• M7: 1,944,174 km (0.082 R)
• M8: 2,191,160 km (0.056 R)
• M9: 2,458,940 km (0.08 R)
• M10: 2,725,374 km (0.043 R)
• M11: 3,110,289 km (0.084 R)
• M12: 4,324,874 km (0.062 R)
• M13: 6,060,060 km (0.088 R)
• M14: 6,505,263 km (0.109 R)
• M15: 8,358,482 km (0.064 R)
• M16: 8,757,160 km (0.074 R)
• M17: 10,085,140 km (0.077 R)
• M18: 10,422,783 km (0.118 R)
• M19: 11,002,325 km (0.106 R)
• M20: 11,602,960 km (0.032 R)
• M21: 13,468,595 km (0.047 R)
• M22: 15,450,917 km (0.105 R)
• M23: 17,945,312 km (0.058 R)
• M24: 24,211,518 km (0.112 R)
• M25: 28,216,253 km (0.115 R)
• M26: 28,773,954 km (0.057 R)
• M27: 30,258,563 km (0.12 R)
• M28: 32,518,987 km (0.104 R)
• M29: 34,254,920 km (0.084 R)
• M30: 41,100,818 km (0.119 R)
• M31: 44,616,069 km (0.1 R)
• M32: 47,067,828 km (0.112 R)
• M33: 50,911,596 km (0.098 R)
• M34: 61,238,786 km (0.093 R)
• M35: 63,497,265 km (0.105 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 270 - 14,033 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit