🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.2

Radius: 12.8

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.62 AU - 0.86 AU

Year: 424 Days

Day: 13.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 87,352,335 km

• M1: 159,172 km (0.056 R)
• M2: 563,086 km (0.075 R)
• M3: 1,035,516 km (0.083 R)
• M4: 1,504,057 km (0.065 R)
• M5: 1,957,189 km (0.062 R)
• M6: 2,783,418 km (0.041 R)
• M7: 3,293,696 km (0.113 R)
• M8: 3,725,585 km (0.116 R)
• M9: 4,309,316 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.8

Radius: 13.4

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.8 AU - 1.18 AU

Year: 657 Days

Day: 9.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 87,352,335 km

• M1: 166,652 km (0.102 R)
• M2: 645,664 km (0.093 R)
• M3: 1,063,491 km (0.045 R)
• M4: 1,481,169 km (0.109 R)
• M5: 2,593,578 km (0.09 R)
• M6: 3,090,393 km (0.09 R)
• M7: 3,623,859 km (0.052 R)
• M8: 4,218,660 km (0.093 R)
• M9: 4,812,264 km (0.084 R)
• M10: 6,071,579 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.9

Radius: 8.9

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.67 AU - 2.03 AU

Year: 1678 Days

Day: 6.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 87,352,335 km

• M1: 116,238 km (0.086 R)
• M2: 403,316 km (0.102 R)
• M3: 725,101 km (0.09 R)
• M4: 1,105,079 km (0.083 R)
• M5: 1,414,149 km (0.117 R)
• M6: 2,278,525 km (0.107 R)
• M7: 2,787,158 km (0.077 R)
• M8: 3,898,969 km (0.073 R)
• M9: 4,235,565 km (0.091 R)
• M10: 4,967,248 km (0.101 R)
• M11: 5,695,640 km (0.095 R)
• M12: 7,567,408 km (0.111 R)
• M13: 8,698,967 km (0.108 R)
• M14: 10,994,097 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.9

Radius: 14.9

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 3.93 AU - 5.45 AU

Year: 6773 Days

Day: 14.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 87,352,335 km

• M1: 185,352 km (0.108 R)
• M2: 664,813 km (0.055 R)
• M3: 3,412,776 km (0.108 R)
• M4: 4,248,280 km (0.057 R)
• M5: 8,449,737 km (0.082 R)
• M6: 9,652,803 km (0.099 R)
• M7: 12,737,361 km (0.085 R)
• M8: 14,584,147 km (0.12 R)
• M9: 16,254,557 km (0.095 R)
• M10: 17,558,452 km (0.051 R)
• M11: 18,236,130 km (0.099 R)
• M12: 20,644,207 km (0.11 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 112.4

Radius: 7.5

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.07 AU - 7.23 AU

Year: 10170 Days

Day: 18.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,352,335 km

• M1: 93,199 km (0.109 R)
• M2: 378,782 km (0.096 R)
• M3: 637,287 km (0.057 R)
• M4: 873,502 km (0.052 R)
• M5: 1,358,199 km (0.108 R)
• M6: 1,798,466 km (0.1 R)
• M7: 2,052,632 km (0.082 R)
• M8: 2,376,961 km (0.111 R)
• M9: 2,752,302 km (0.088 R)
• M10: 3,768,969 km (0.098 R)
• M11: 4,863,128 km (0.105 R)
• M12: 6,896,761 km (0.089 R)
• M13: 9,086,724 km (0.074 R)
• M14: 11,565,411 km (0.115 R)
• M15: 14,409,566 km (0.078 R)
• M16: 15,767,915 km (0.094 R)
• M17: 16,680,761 km (0.095 R)
• M18: 16,973,075 km (0.073 R)
• M19: 20,552,354 km (0.109 R)
• M20: 22,269,737 km (0.1 R)
• M21: 24,907,746 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 530.3

Radius: 6.6

Gravity: 12.17 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 5.24 AU - 7.98 AU

Year: 11333 Days

Day: 22.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 161.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,352,335 km

• M1: 82,129 km (0.116 R)
• M2: 394,340 km (0.092 R)
• M3: 686,205 km (0.079 R)
• M4: 1,845,589 km (0.078 R)
• M5: 3,595,286 km (0.111 R)
• M6: 3,905,851 km (0.116 R)
• M7: 6,269,348 km (0.1 R)
• M8: 6,914,264 km (0.107 R)
• M9: 11,519,485 km (0.065 R)
• M10: 12,252,963 km (0.045 R)
• M11: 16,745,686 km (0.037 R)
• M12: 18,508,697 km (0.108 R)
• M13: 21,379,780 km (0.119 R)
• M14: 21,970,542 km (0.114 R)
• M15: 24,442,946 km (0.108 R)
• M16: 25,651,547 km (0.065 R)
• M17: 26,801,955 km (0.108 R)
• M18: 32,406,938 km (0.099 R)
• M19: 36,190,418 km (0.088 R)
• M20: 44,075,871 km (0.094 R)
• M21: 45,032,250 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 195.4

Radius: 6.3

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 5.64 AU - 7.98 AU

Year: 11851 Days

Day: 17 Hours

Environment

Temp: -224 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 87,352,335 km

• M1: 99,931 km (0.091 R)
• M2: 443,558 km (0.101 R)
• M3: 756,965 km (0.081 R)
• M4: 3,904,804 km (0.066 R)
• M5: 6,171,062 km (0.072 R)
• M6: 8,081,127 km (0.05 R)
• M7: 11,610,440 km (0.084 R)
• M8: 11,914,274 km (0.093 R)
• M9: 15,011,997 km (0.054 R)
• M10: 17,593,906 km (0.063 R)
• M11: 18,954,649 km (0.09 R)
• M12: 29,175,923 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 171.3

Radius: 5.5

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 6.49 AU - 8.45 AU

Year: 13615 Days

Day: 18.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 87,352,335 km

• M1: 68,366 km (0.11 R)
• M2: 406,457 km (0.097 R)
• M3: 1,642,435 km (0.096 R)
• M4: 2,231,252 km (0.086 R)
• M5: 2,695,754 km (0.031 R)
• M6: 3,791,408 km (0.071 R)
• M7: 4,214,770 km (0.091 R)
• M8: 5,457,181 km (0.05 R)
• M9: 6,432,708 km (0.116 R)
• M10: 10,569,239 km (0.094 R)
• M11: 11,205,030 km (0.109 R)
• M12: 33,862,675 km (0.082 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 860

Radius: 7.8

Gravity: 14.14 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 6.01 AU - 9.65 AU

Year: 14611 Days

Day: 22 Hours

Environment

Temp: -225 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 87,352,335 km

• M1: 96,939 km (0.11 R)
• M2: 359,184 km (0.063 R)
• M3: 982,110 km (0.095 R)
• M4: 1,449,753 km (0.06 R)
• M5: 1,964,818 km (0.098 R)
• M6: 3,437,460 km (0.025 R)
• M7: 3,920,661 km (0.109 R)
• M8: 4,163,309 km (0.08 R)
• M9: 4,712,782 km (0.041 R)
• M10: 5,200,620 km (0.116 R)
• M11: 5,531,830 km (0.117 R)
• M12: 6,400,994 km (0.095 R)
• M13: 8,209,632 km (0.107 R)
• M14: 11,279,380 km (0.087 R)
• M15: 12,736,314 km (0.05 R)
• M16: 13,271,126 km (0.077 R)
• M17: 15,039,672 km (0.091 R)
• M18: 16,721,152 km (0.087 R)
• M19: 20,272,606 km (0.074 R)
• M20: 21,094,048 km (0.038 R)
• M21: 22,706,114 km (0.086 R)
• M22: 25,854,252 km (0.089 R)
• M23: 26,711,597 km (0.077 R)
• M24: 28,145,044 km (0.116 R)
• M25: 31,890,526 km (0.097 R)
• M26: 35,038,215 km (0.05 R)
• M27: 38,387,262 km (0.06 R)
• M28: 38,802,845 km (0.107 R)
• M29: 39,221,570 km (0.051 R)
• M30: 41,797,346 km (0.115 R)
• M31: 44,179,542 km (0.099 R)
• M32: 52,375,411 km (0.026 R)
• M33: 53,573,989 km (0.074 R)
• M34: 60,775,182 km (0.057 R)
• M35: 62,671,335 km (0.065 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 935.1

Radius: 7.5

Gravity: 16.62 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 9.09 AU - 10.89 AU

Year: 21056 Days

Day: 18.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 122.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 87,352,335 km

• M1: 93,199 km (0.057 R)
• M2: 730,337 km (0.118 R)
• M3: 1,087,277 km (0.102 R)
• M4: 1,523,206 km (0.075 R)
• M5: 2,872,878 km (0.086 R)
• M6: 4,232,722 km (0.096 R)
• M7: 4,957,374 km (0.095 R)
• M8: 5,594,512 km (0.094 R)
• M9: 6,791,743 km (0.078 R)
• M10: 8,531,417 km (0.088 R)
• M11: 10,485,464 km (0.092 R)
• M12: 12,864,818 km (0.113 R)
• M13: 14,063,696 km (0.105 R)
• M14: 19,705,181 km (0.032 R)
• M15: 22,120,588 km (0.097 R)
• M16: 22,753,986 km (0.045 R)
• M17: 26,220,168 km (0.116 R)
• M18: 32,934,719 km (0.027 R)
• M19: 33,208,334 km (0.028 R)
• M20: 39,005,850 km (0.106 R)
• M21: 40,710,966 km (0.099 R)
• M22: 43,115,453 km (0.12 R)
• M23: 48,912,669 km (0.076 R)
• M24: 49,269,012 km (0.064 R)
• M25: 49,626,999 km (0.061 R)
• M26: 49,986,932 km (0.111 R)
• M27: 51,996,929 km (0.098 R)
• M28: 52,928,325 km (0.1 R)
• M29: 58,951,734 km (0.087 R)
• M30: 63,071,061 km (0.081 R)
• M31: 64,343,391 km (0.11 R)
• M32: 68,040,852 km (0.039 R)
• M33: 68,707,759 km (0.104 R)
• M34: 70,734,511 km (0.101 R)
• M35: 72,107,670 km (0.079 R)
• M36: 79,240,646 km (0.044 R)
• M37: 81,468,906 km (0.07 R)
• M38: 82,724,631 km (0.084 R)
• M39: 87,352,291 km (0.085 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 328 - 19,482 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit