🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.8

Radius: 12.7

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.45 AU - 0.59 AU

Year: 250 Days

Day: 12.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 81,824,075 km

• M1: 157,975 km (0.096 R)
• M2: 698,772 km (0.055 R)
• M3: 1,324,390 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.5

Radius: 10.3

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.88 AU - 1.4 AU

Year: 812 Days

Day: 11.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,824,075 km

• M1: 128,205 km (0.092 R)
• M2: 496,366 km (0.114 R)
• M3: 1,043,296 km (0.111 R)
• M4: 1,592,021 km (0.064 R)
• M5: 2,525,661 km (0.109 R)
• M6: 3,029,058 km (0.089 R)
• M7: 3,661,408 km (0.077 R)
• M8: 4,569,617 km (0.05 R)
• M9: 5,092,760 km (0.107 R)
• M10: 5,452,394 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.2

Radius: 14.5

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.37 AU - 1.49 AU

Year: 1140 Days

Day: 14.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 130.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,824,075 km

• M1: 180,415 km (0.083 R)
• M2: 680,670 km (0.104 R)
• M3: 1,282,503 km (0.116 R)
• M4: 1,768,845 km (0.087 R)
• M5: 2,238,583 km (0.109 R)
• M6: 3,044,317 km (0.09 R)
• M7: 3,742,041 km (0.065 R)
• M8: 4,251,422 km (0.12 R)
• M9: 4,896,937 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.1

Radius: 8.4

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.61 AU - 2.07 AU

Year: 1664 Days

Day: 13.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 88.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,824,075 km

• M1: 105,018 km (0.118 R)
• M2: 477,516 km (0.085 R)
• M3: 788,979 km (0.107 R)
• M4: 1,098,348 km (0.101 R)
• M5: 1,717,832 km (0.119 R)
• M6: 2,766,364 km (0.056 R)
• M7: 4,123,815 km (0.104 R)
• M8: 7,737,651 km (0.102 R)
• M9: 9,561,548 km (0.086 R)
• M10: 10,429,216 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.5

Radius: 10

Gravity: 9.38 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.74 AU - 2.16 AU

Year: 1816 Days

Day: 5.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 81,824,075 km

• M1: 124,316 km (0.091 R)
• M2: 457,769 km (0.12 R)
• M3: 813,962 km (0.1 R)
• M4: 1,249,741 km (0.115 R)
• M5: 1,849,778 km (0.101 R)
• M6: 2,229,307 km (0.042 R)
• M7: 2,618,112 km (0.116 R)
• M8: 3,051,946 km (0.065 R)
• M9: 3,395,722 km (0.116 R)
• M10: 4,360,329 km (0.113 R)
• M11: 4,972,783 km (0.094 R)
• M12: 5,334,510 km (0.065 R)
• M13: 6,421,189 km (0.086 R)
• M14: 8,668,748 km (0.102 R)
• M15: 10,601,851 km (0.066 R)
• M16: 11,050,795 km (0.083 R)
• M17: 13,663,222 km (0.08 R)
• M18: 14,926,128 km (0.088 R)
• M19: 15,585,854 km (0.113 R)
• M20: 16,166,892 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.1

Radius: 12.2

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.83 AU - 2.31 AU

Year: 1986 Days

Day: 5.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 146.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,824,075 km

• M1: 177,423 km (0.09 R)
• M2: 648,656 km (0.081 R)
• M3: 1,038,359 km (0.093 R)
• M4: 1,786,797 km (0.094 R)
• M5: 2,463,877 km (0.047 R)
• M6: 2,908,631 km (0.118 R)
• M7: 3,407,092 km (0.087 R)
• M8: 4,194,126 km (0.085 R)
• M9: 5,743,361 km (0.115 R)
• M10: 7,146,889 km (0.069 R)
• M11: 9,515,322 km (0.034 R)
• M12: 11,007,561 km (0.042 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.1

Radius: 12.8

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.99 AU - 2.63 AU

Year: 2341 Days

Day: 9 Hours

Environment

Temp: -202 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,824,075 km

• M1: 159,172 km (0.034 R)
• M2: 582,534 km (0.084 R)
• M3: 1,157,439 km (0.072 R)
• M4: 1,726,509 km (0.066 R)
• M5: 2,139,549 km (0.111 R)
• M6: 2,720,886 km (0.073 R)
• M7: 3,635,079 km (0.11 R)
• M8: 4,183,804 km (0.119 R)
• M9: 4,964,256 km (0.076 R)
• M10: 5,789,737 km (0.079 R)
• M11: 6,327,691 km (0.115 R)
• M12: 7,774,302 km (0.092 R)
• M13: 8,526,929 km (0.117 R)
• M14: 9,431,099 km (0.119 R)
• M15: 10,032,482 km (0.118 R)
• M16: 11,351,486 km (0.116 R)
• M17: 13,039,998 km (0.077 R)
• M18: 14,562,754 km (0.067 R)
• M19: 15,223,079 km (0.082 R)
• M20: 15,658,110 km (0.058 R)
• M21: 16,301,082 km (0.116 R)
• M22: 17,220,211 km (0.06 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.2

Radius: 9.8

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.1 AU - 3.84 AU

Year: 4310 Days

Day: 13.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,824,075 km

• M1: 122,221 km (0.093 R)
• M2: 545,883 km (0.115 R)
• M3: 1,871,170 km (0.097 R)
• M4: 3,592,892 km (0.048 R)
• M5: 5,899,392 km (0.045 R)
• M6: 7,574,439 km (0.075 R)
• M7: 10,218,283 km (0.101 R)
• M8: 12,061,628 km (0.084 R)
• M9: 12,381,318 km (0.094 R)
• M10: 13,229,837 km (0.086 R)
• M11: 14,833,227 km (0.115 R)
• M12: 21,068,317 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 986

Radius: 3.3

Gravity: 90.54 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 5.67 AU - 8.55 AU

Year: 12643 Days

Day: 22.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 81,824,075 km

• M1: 41,588 km (0.1 R)
• M2: 258,804 km (0.072 R)
• M3: 577,897 km (0.111 R)
• M4: 800,498 km (0.107 R)
• M5: 948,451 km (0.059 R)
• M6: 1,152,502 km (0.098 R)
• M7: 1,535,921 km (0.12 R)
• M8: 1,961,677 km (0.116 R)
• M9: 2,074,623 km (0.105 R)
• M10: 2,683,187 km (0.027 R)
• M11: 2,846,399 km (0.063 R)
• M12: 3,218,299 km (0.11 R)
• M13: 5,391,208 km (0.113 R)
• M14: 7,710,873 km (0.093 R)
• M15: 8,185,098 km (0.08 R)
• M16: 11,206,077 km (0.077 R)
• M17: 12,188,786 km (0.055 R)
• M18: 15,039,373 km (0.106 R)
• M19: 17,730,040 km (0.105 R)
• M20: 19,402,993 km (0.069 R)
• M21: 20,188,981 km (0.094 R)
• M22: 20,814,898 km (0.049 R)
• M23: 24,641,163 km (0.111 R)
• M24: 29,819,942 km (0.11 R)
• M25: 30,397,839 km (0.118 R)
• M26: 33,152,235 km (0.09 R)
• M27: 35,808,345 km (0.11 R)
• M28: 37,521,689 km (0.119 R)
• M29: 38,195,029 km (0.034 R)
• M30: 38,330,714 km (0.026 R)
• M31: 38,739,416 km (0.104 R)
• M32: 41,970,431 km (0.037 R)
• M33: 42,259,603 km (0.091 R)
• M34: 43,577,411 km (0.105 R)
• M35: 44,470,959 km (0.11 R)
• M36: 59,195,279 km (0.109 R)
• M37: 61,399,604 km (0.074 R)
• M38: 62,522,036 km (0.119 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 575.7

Radius: 7.1

Gravity: 11.42 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 9.79 AU - 12.21 AU

Year: 24329 Days

Day: 24.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 81,824,075 km

• M1: 88,263 km (0.077 R)
• M2: 482,752 km (0.073 R)
• M3: 823,835 km (0.036 R)
• M4: 1,162,675 km (0.099 R)
• M5: 2,407,329 km (0.101 R)
• M6: 2,920,150 km (0.086 R)
• M7: 3,329,301 km (0.076 R)
• M8: 4,467,890 km (0.116 R)
• M9: 5,680,530 km (0.068 R)
• M10: 6,407,127 km (0.045 R)
• M11: 7,146,290 km (0.073 R)
• M12: 7,388,489 km (0.099 R)
• M13: 11,915,770 km (0.116 R)
• M14: 12,604,518 km (0.032 R)
• M15: 13,761,359 km (0.087 R)
• M16: 14,987,463 km (0.111 R)
• M17: 19,286,756 km (0.072 R)
• M18: 19,852,385 km (0.096 R)
• M19: 21,716,375 km (0.091 R)
• M20: 22,328,380 km (0.101 R)
• M21: 23,801,320 km (0.113 R)
• M22: 26,590,573 km (0.083 R)
• M23: 29,095,888 km (0.078 R)
• M24: 33,885,563 km (0.054 R)
• M25: 35,826,895 km (0.086 R)
• M26: 40,847,998 km (0.103 R)
• M27: 44,661,996 km (0.053 R)
• M28: 48,706,673 km (0.063 R)
• M29: 55,410,004 km (0.057 R)
• M30: 59,872,509 km (0.106 R)
• M31: 61,479,190 km (0.078 R)
• M32: 70,166,488 km (0.106 R)
• M33: 81,824,051 km (0.065 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 495 - 13,420 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit