🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.54 AU - 0.6 AU

Year: 274 Days

Day: 29.9 Hours

Environment

Temp: -121 °C

Axial Tilt: 1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.5

Radius: 10.8

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.94 AU - 4.56 AU

Year: 4617 Days

Day: 14.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,337,256 km

• M1: 205,248 km (0.034 R)
• M2: 714,180 km (0.111 R)
• M3: 1,215,333 km (0.066 R)
• M4: 2,757,238 km (0.046 R)
• M5: 4,394,437 km (0.115 R)
• M6: 6,450,660 km (0.092 R)
• M7: 6,878,360 km (0.064 R)
• M8: 11,671,476 km (0.061 R)
• M9: 14,001,164 km (0.058 R)
• M10: 14,667,922 km (0.044 R)
• M11: 16,852,649 km (0.101 R)
• M12: 19,878,266 km (0.109 R)
• M13: 20,720,651 km (0.096 R)
• M14: 22,755,183 km (0.118 R)
• M15: 23,319,615 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.8

Radius: 10.5

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 4.95 AU - 5.29 AU

Year: 7366 Days

Day: 8.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,337,256 km

• M1: 130,749 km (0.102 R)
• M2: 516,262 km (0.098 R)
• M3: 909,106 km (0.111 R)
• M4: 2,193,703 km (0.081 R)
• M5: 3,416,965 km (0.03 R)
• M6: 4,381,722 km (0.075 R)
• M7: 5,433,544 km (0.113 R)
• M8: 7,178,603 km (0.096 R)
• M9: 8,988,438 km (0.076 R)
• M10: 10,811,438 km (0.094 R)
• M11: 11,314,835 km (0.047 R)
• M12: 13,963,166 km (0.081 R)
• M13: 14,560,510 km (0.082 R)
• M14: 15,288,454 km (0.05 R)
• M15: 18,123,782 km (0.027 R)
• M16: 22,672,006 km (0.069 R)
• M17: 24,342,865 km (0.061 R)
• M18: 25,931,893 km (0.071 R)
• M19: 28,013,847 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867

Radius: 12

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 3.88 AU - 6.42 AU

Year: 7431 Days

Day: 10.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,337,256 km

• M1: 149,299 km (0.104 R)
• M2: 638,484 km (0.068 R)
• M3: 1,059,901 km (0.064 R)
• M4: 1,474,137 km (0.097 R)
• M5: 3,472,615 km (0.087 R)
• M6: 4,142,066 km (0.108 R)
• M7: 5,479,620 km (0.115 R)
• M8: 5,871,866 km (0.066 R)
• M9: 6,459,935 km (0.073 R)
• M10: 7,278,834 km (0.12 R)
• M11: 7,958,008 km (0.105 R)
• M12: 9,350,914 km (0.064 R)
• M13: 10,009,145 km (0.081 R)
• M14: 11,576,482 km (0.063 R)
• M15: 12,446,842 km (0.1 R)
• M16: 13,536,363 km (0.108 R)
• M17: 15,320,468 km (0.083 R)
• M18: 16,503,787 km (0.119 R)
• M19: 17,256,414 km (0.111 R)
• M20: 20,342,169 km (0.098 R)
• M21: 24,386,248 km (0.117 R)
• M22: 28,351,788 km (0.084 R)
• M23: 32,302,967 km (0.04 R)
• M24: 33,915,632 km (0.057 R)
• M25: 39,437,290 km (0.059 R)
• M26: 41,904,907 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.2

Radius: 8.5

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 5.1 AU - 6.16 AU

Year: 8494 Days

Day: 5.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,337,256 km

• M1: 105,766 km (0.032 R)
• M2: 378,782 km (0.095 R)
• M3: 644,019 km (0.115 R)
• M4: 2,010,296 km (0.097 R)
• M5: 2,390,125 km (0.11 R)
• M6: 4,087,163 km (0.063 R)
• M7: 5,372,808 km (0.119 R)
• M8: 5,641,037 km (0.04 R)
• M9: 6,839,615 km (0.037 R)
• M10: 7,517,293 km (0.105 R)
• M11: 8,436,422 km (0.092 R)
• M12: 10,822,508 km (0.067 R)
• M13: 11,692,270 km (0.113 R)
• M14: 14,639,049 km (0.078 R)
• M15: 18,992,646 km (0.069 R)
• M16: 20,981,700 km (0.064 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 305.2

Radius: 7

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 6.43 AU - 8.67 AU

Year: 13190 Days

Day: 15.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 65,337,256 km

• M1: 87,066 km (0.064 R)
• M2: 326,572 km (0.096 R)
• M3: 741,257 km (0.074 R)
• M4: 1,041,500 km (0.107 R)
• M5: 3,654,676 km (0.106 R)
• M6: 4,199,212 km (0.113 R)
• M7: 4,916,684 km (0.091 R)
• M8: 5,646,272 km (0.095 R)
• M9: 6,592,479 km (0.071 R)
• M10: 6,968,418 km (0.061 R)
• M11: 7,640,262 km (0.085 R)
• M12: 8,485,042 km (0.115 R)
• M13: 10,409,020 km (0.096 R)
• M14: 11,180,346 km (0.11 R)
• M15: 11,499,289 km (0.104 R)
• M16: 13,068,720 km (0.086 R)
• M17: 13,363,279 km (0.076 R)
• M18: 15,616,821 km (0.09 R)
• M19: 17,112,201 km (0.071 R)
• M20: 19,915,665 km (0.1 R)
• M21: 22,001,359 km (0.112 R)
• M22: 24,140,010 km (0.031 R)
• M23: 29,728,986 km (0.1 R)
• M24: 32,551,898 km (0.085 R)
• M25: 40,442,887 km (0.09 R)
• M26: 40,943,142 km (0.059 R)
• M27: 41,447,586 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 897.4

Radius: 7.1

Gravity: 17.8 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 6.93 AU - 8.71 AU

Year: 13904 Days

Day: 18 Hours

Environment

Temp: -219 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 65,337,256 km

• M1: 89,011 km (0.08 R)
• M2: 594,801 km (0.068 R)
• M3: 945,907 km (0.068 R)
• M4: 1,261,708 km (0.066 R)
• M5: 2,630,230 km (0.069 R)
• M6: 3,057,032 km (0.108 R)
• M7: 3,287,264 km (0.12 R)
• M8: 4,140,271 km (0.034 R)
• M9: 5,838,057 km (0.113 R)
• M10: 6,113,766 km (0.054 R)
• M11: 7,037,084 km (0.057 R)
• M12: 7,859,124 km (0.059 R)
• M13: 9,104,975 km (0.048 R)
• M14: 9,369,015 km (0.11 R)
• M15: 10,362,645 km (0.076 R)
• M16: 13,832,717 km (0.103 R)
• M17: 15,118,211 km (0.03 R)
• M18: 15,339,915 km (0.116 R)
• M19: 16,018,192 km (0.119 R)
• M20: 17,192,984 km (0.056 R)
• M21: 18,508,099 km (0.119 R)
• M22: 20,066,310 km (0.045 R)
• M23: 23,441,687 km (0.091 R)
• M24: 26,743,761 km (0.081 R)
• M25: 27,395,559 km (0.085 R)
• M26: 34,253,125 km (0.097 R)
• M27: 36,593,584 km (0.086 R)
• M28: 41,880,522 km (0.104 R)
• M29: 49,582,868 km (0.095 R)
• M30: 53,422,746 km (0.086 R)
• M31: 57,097,767 km (0.118 R)
• M32: 60,937,795 km (0.108 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 388 - 17,003 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit