🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.8 AU - 0.98 AU

Year: 304 Days

Day: 30 Hours

Environment

Temp: 155 °C

Axial Tilt: 47.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.22 AU - 1.78 AU

Year: 664 Days

Day: 36.8 Hours

Environment

Temp: -35 °C

Axial Tilt: 4.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 61,281,848 km

• M1: 59,989 km (0.064 R)
• M2: 204,650 km (0.064 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.68 AU - 2.02 AU

Year: 910 Days

Day: 24.2 Hours

Environment

Temp: -49 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.82 AU - 2.28 AU

Year: 1062 Days

Day: 31.7 Hours

Environment

Temp: -70 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,281,848 km

• M1: 775,815 km (0.102 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 3.7 AU - 5.46 AU

Year: 3545 Days

Day: 33.3 Hours

Environment

Temp: -134 °C

Axial Tilt: 37 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,281,848 km

• M1: 906,413 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 180.5

Radius: 3.7

Gravity: 13.18 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 10.32 AU - 17.08 AU

Year: 18339 Days

Day: 24 Hours

Environment

Temp: -182 °C

Axial Tilt: 140 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (65)

Outer Limit: 61,281,848 km

• M1: 57,595 km (0.117 R)
• M2: 309,368 km (0.075 R)
• M3: 623,225 km (0.057 R)
• M4: 671,994 km (0.115 R)
• M5: 721,959 km (0.069 R)
• M6: 1,028,785 km (0.068 R)
• M7: 1,145,770 km (0.094 R)
• M8: 1,435,541 km (0.096 R)
• M9: 1,723,966 km (0.102 R)
• M10: 1,934,151 km (0.048 R)
• M11: 2,201,931 km (0.07 R)
• M12: 2,327,444 km (0.072 R)
• M13: 2,585,650 km (0.026 R)
• M14: 3,156,814 km (0.104 R)
• M15: 3,355,630 km (0.114 R)
• M16: 3,558,485 km (0.075 R)
• M17: 3,617,277 km (0.079 R)
• M18: 4,006,680 km (0.092 R)
• M19: 4,221,802 km (0.066 R)
• M20: 4,283,885 km (0.109 R)
• M21: 5,864,536 km (0.111 R)
• M22: 5,899,093 km (0.093 R)
• M23: 7,378,167 km (0.111 R)
• M24: 7,565,912 km (0.12 R)
• M25: 8,450,185 km (0.041 R)
• M26: 8,489,380 km (0.081 R)
• M27: 8,844,675 km (0.07 R)
• M28: 9,980,871 km (0.117 R)
• M29: 10,188,513 km (0.071 R)
• M30: 11,769,313 km (0.058 R)
• M31: 13,015,164 km (0.116 R)
• M32: 13,060,493 km (0.076 R)
• M33: 13,699,724 km (0.107 R)
• M34: 14,395,803 km (0.032 R)
• M35: 14,536,425 km (0.104 R)
• M36: 15,055,829 km (0.111 R)
• M37: 15,389,582 km (0.086 R)
• M38: 15,822,219 km (0.102 R)
• M39: 16,258,895 km (0.1 R)
• M40: 16,748,678 km (0.105 R)
• M41: 17,094,399 km (0.114 R)
• M42: 17,692,491 km (0.045 R)
• M43: 19,320,864 km (0.111 R)
• M44: 20,205,137 km (0.084 R)
• M45: 20,573,148 km (0.051 R)
• M46: 22,175,042 km (0.079 R)
• M47: 23,705,877 km (0.059 R)
• M48: 25,270,372 km (0.051 R)
• M49: 25,837,198 km (0.105 R)
• M50: 27,737,240 km (0.088 R)
• M51: 28,321,869 km (0.094 R)
• M52: 29,028,719 km (0.114 R)
• M53: 30,520,060 km (0.071 R)
• M54: 30,821,201 km (0.118 R)
• M55: 31,487,360 km (0.111 R)
• M56: 32,403,348 km (0.112 R)
• M57: 33,762,743 km (0.072 R)
• M58: 34,511,930 km (0.069 R)
• M59: 37,112,838 km (0.112 R)
• M60: 38,990,291 km (0.085 R)
• M61: 39,317,013 km (0.063 R)
• M62: 39,382,537 km (0.091 R)
• M63: 42,030,868 km (0.118 R)
• M64: 43,038,859 km (0.111 R)
• M65: 46,040,839 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 97.3

Radius: 5.9

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 11.55 AU - 17.51 AU

Year: 20030 Days

Day: 21.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 61,281,848 km

• M1: 91,853 km (0.08 R)
• M2: 322,084 km (0.106 R)
• M3: 776,712 km (0.06 R)
• M4: 871,856 km (0.118 R)
• M5: 1,442,273 km (0.037 R)
• M6: 2,195,947 km (0.093 R)
• M7: 3,863,515 km (0.1 R)
• M8: 4,138,775 km (0.081 R)
• M9: 5,856,308 km (0.061 R)
• M10: 6,461,431 km (0.087 R)
• M11: 7,253,851 km (0.105 R)
• M12: 8,076,639 km (0.05 R)
• M13: 8,713,029 km (0.11 R)
• M14: 10,183,875 km (0.09 R)
• M15: 10,448,962 km (0.065 R)
• M16: 10,870,380 km (0.053 R)
• M17: 11,414,766 km (0.077 R)
• M18: 11,729,819 km (0.101 R)
• M19: 12,610,801 km (0.091 R)
• M20: 12,895,486 km (0.084 R)
• M21: 13,846,181 km (0.052 R)
• M22: 14,308,737 km (0.077 R)
• M23: 15,205,876 km (0.03 R)
• M24: 15,726,626 km (0.106 R)
• M25: 16,518,746 km (0.053 R)
• M26: 17,958,626 km (0.062 R)
• M27: 18,141,435 km (0.092 R)
• M28: 18,693,600 km (0.048 R)
• M29: 19,344,800 km (0.107 R)
• M30: 19,908,784 km (0.111 R)
• M31: 21,487,490 km (0.028 R)
• M32: 23,554,185 km (0.106 R)
• M33: 26,458,777 km (0.071 R)
• M34: 27,873,524 km (0.041 R)
• M35: 28,563,320 km (0.079 R)
• M36: 28,669,983 km (0.037 R)
• M37: 30,014,120 km (0.092 R)
• M38: 31,268,797 km (0.054 R)
• M39: 33,547,323 km (0.076 R)
• M40: 34,167,854 km (0.102 R)
• M41: 34,507,741 km (0.1 R)
• M42: 34,848,974 km (0.058 R)
• M43: 36,455,505 km (0.106 R)
• M44: 36,860,915 km (0.108 R)
• M45: 37,267,822 km (0.064 R)
• M46: 39,206,161 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 308.6

Radius: 7.8

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 12.44 AU - 18.06 AU

Year: 21537 Days

Day: 21.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 61,281,848 km

• M1: 125,513 km (0.058 R)
• M2: 338,839 km (0.087 R)
• M3: 414,984 km (0.052 R)
• M4: 463,753 km (0.068 R)
• M5: 681,119 km (0.095 R)
• M6: 929,601 km (0.115 R)
• M7: 1,018,761 km (0.085 R)
• M8: 1,110,914 km (0.097 R)
• M9: 1,181,973 km (0.086 R)
• M10: 1,481,468 km (0.071 R)
• M11: 1,721,572 km (0.092 R)
• M12: 2,329,239 km (0.111 R)
• M13: 2,672,267 km (0.099 R)
• M14: 3,031,302 km (0.081 R)
• M15: 3,510,314 km (0.075 R)
• M16: 4,235,116 km (0.073 R)
• M17: 4,423,459 km (0.051 R)
• M18: 4,499,605 km (0.108 R)
• M19: 6,367,633 km (0.076 R)
• M20: 6,453,652 km (0.047 R)
• M21: 6,714,401 km (0.062 R)
• M22: 6,890,029 km (0.117 R)
• M23: 7,156,313 km (0.076 R)
• M24: 7,699,204 km (0.108 R)
• M25: 8,255,409 km (0.111 R)
• M26: 8,728,737 km (0.075 R)
• M27: 9,259,510 km (0.109 R)
• M28: 9,406,116 km (0.082 R)
• M29: 9,553,619 km (0.12 R)
• M30: 9,652,204 km (0.096 R)
• M31: 10,403,036 km (0.052 R)
• M32: 13,755,973 km (0.096 R)
• M33: 14,542,708 km (0.118 R)
• M34: 14,713,250 km (0.043 R)
• M35: 14,770,247 km (0.088 R)
• M36: 14,998,832 km (0.107 R)
• M37: 15,633,725 km (0.062 R)
• M38: 15,691,919 km (0.08 R)
• M39: 15,983,784 km (0.115 R)
• M40: 16,572,901 km (0.051 R)
• M41: 19,061,461 km (0.119 R)
• M42: 19,686,033 km (0.032 R)
• M43: 20,380,765 km (0.109 R)
• M44: 20,635,231 km (0.071 R)
• M45: 21,019,249 km (0.038 R)
• M46: 21,664,315 km (0.118 R)
• M47: 21,989,241 km (0.092 R)
• M48: 22,775,677 km (0.038 R)
• M49: 22,907,623 km (0.11 R)
• M50: 23,438,097 km (0.083 R)
• M51: 24,376,225 km (0.111 R)
• M52: 24,849,852 km (0.113 R)
• M53: 26,081,641 km (0.108 R)
• M54: 26,983,566 km (0.079 R)
• M55: 28,604,310 km (0.101 R)
• M56: 30,473,984 km (0.087 R)
• M57: 30,692,247 km (0.108 R)
• M58: 32,160,700 km (0.118 R)
• M59: 32,680,104 km (0.066 R)
• M60: 32,828,954 km (0.113 R)
• M61: 32,903,453 km (0.083 R)
• M62: 35,547,446 km (0.118 R)
• M63: 36,701,294 km (0.03 R)
• M64: 37,243,886 km (0.089 R)
• M65: 38,101,979 km (0.077 R)
• M66: 39,045,493 km (0.098 R)
• M67: 39,124,481 km (0.106 R)
• M68: 40,555,235 km (0.07 R)
• M69: 40,715,155 km (0.059 R)
• M70: 40,955,708 km (0.056 R)
• M71: 41,518,495 km (0.082 R)
• M72: 42,164,758 km (0.058 R)
• M73: 44,700,741 km (0.039 R)
• M74: 45,114,379 km (0.11 R)
• M75: 45,197,257 km (0.041 R)
• M76: 45,363,161 km (0.068 R)
• M77: 47,538,463 km (0.083 R)
• M78: 47,960,629 km (0.062 R)
• M79: 52,860,856 km (0.113 R)
• M80: 53,561,274 km (0.059 R)
• M81: 54,441,059 km (0.073 R)
• M82: 55,591,915 km (0.039 R)
• M83: 55,947,659 km (0.117 R)
• M84: 56,840,309 km (0.094 R)
• M85: 57,019,378 km (0.072 R)
• M86: 57,108,987 km (0.101 R)
• M87: 59,910,357 km (0.096 R)
• M88: 60,092,567 km (0.072 R)
• M89: 60,915,056 km (0.034 R)
• M90: 61,281,870 km (0.113 R)

Kuiper Belt

Range: 30.3 - 51.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 14,241 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit