🌌 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: 422.5

Radius: 9.5

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.67 AU - 0.81 AU

Year: 411 Days

Day: 12.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,958,578 km

• M1: 118,182 km (0.056 R)
• M2: 466,895 km (0.117 R)
• M3: 1,010,085 km (0.1 R)
• M4: 1,396,347 km (0.083 R)
• M5: 1,716,636 km (0.118 R)
• M6: 2,265,959 km (0.101 R)
• M7: 2,761,128 km (0.08 R)
• M8: 3,229,519 km (0.12 R)
• M9: 3,655,873 km (0.049 R)
• M10: 3,956,564 km (0.068 R)
• M11: 4,499,156 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.1

Radius: 10.5

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.63 AU - 0.89 AU

Year: 428 Days

Day: 14.5 Hours

Environment

Temp: -142 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 62,958,578 km

• M1: 130,599 km (0.095 R)
• M2: 473,028 km (0.071 R)
• M3: 900,430 km (0.085 R)
• M4: 1,246,300 km (0.099 R)
• M5: 2,057,120 km (0.086 R)
• M6: 2,850,887 km (0.064 R)
• M7: 4,101,226 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.3

Radius: 14.8

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.35 AU - 1.39 AU

Year: 1035 Days

Day: 6.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,958,578 km

• M1: 184,005 km (0.108 R)
• M2: 922,720 km (0.083 R)
• M3: 1,611,618 km (0.096 R)
• M4: 2,118,755 km (0.115 R)
• M5: 2,683,187 km (0.051 R)
• M6: 3,304,318 km (0.12 R)
• M7: 4,670,595 km (0.046 R)
• M8: 5,168,606 km (0.082 R)
• M9: 6,137,701 km (0.117 R)
• M10: 6,618,958 km (0.05 R)
• M11: 7,125,496 km (0.083 R)
• M12: 8,000,793 km (0.083 R)
• M13: 9,597,751 km (0.097 R)
• M14: 10,666,029 km (0.076 R)
• M15: 11,195,605 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.7

Radius: 12.5

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.66 AU - 1.86 AU

Year: 1508 Days

Day: 11.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,958,578 km

• M1: 157,377 km (0.042 R)
• M2: 579,991 km (0.082 R)
• M3: 1,144,125 km (0.112 R)
• M4: 2,045,751 km (0.11 R)
• M5: 2,514,591 km (0.052 R)
• M6: 3,068,701 km (0.1 R)
• M7: 3,875,183 km (0.059 R)
• M8: 4,708,443 km (0.053 R)
• M9: 5,474,384 km (0.109 R)
• M10: 5,866,331 km (0.052 R)
• M11: 6,965,277 km (0.086 R)
• M12: 7,426,786 km (0.076 R)
• M13: 8,303,579 km (0.063 R)
• M14: 9,480,615 km (0.04 R)
• M15: 9,987,453 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.6

Radius: 13

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.75 AU - 1.91 AU

Year: 1598 Days

Day: 9.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,958,578 km

• M1: 161,715 km (0.08 R)
• M2: 568,921 km (0.08 R)
• M3: 1,008,439 km (0.111 R)
• M4: 1,637,947 km (0.084 R)
• M5: 2,130,124 km (0.083 R)
• M6: 3,230,566 km (0.05 R)
• M7: 3,649,889 km (0.1 R)
• M8: 4,679,421 km (0.113 R)
• M9: 5,197,928 km (0.039 R)
• M10: 5,617,400 km (0.116 R)
• M11: 6,499,878 km (0.082 R)
• M12: 7,147,038 km (0.104 R)
• M13: 7,583,415 km (0.045 R)
• M14: 8,420,116 km (0.057 R)
• M15: 8,969,888 km (0.057 R)
• M16: 11,121,255 km (0.075 R)
• M17: 12,826,821 km (0.099 R)
• M18: 13,555,811 km (0.103 R)
• M19: 14,657,300 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.1

Radius: 9.4

Gravity: 10.38 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.88 AU - 2.86 AU

Year: 2356 Days

Day: 8 Hours

Environment

Temp: -187 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 62,958,578 km

• M1: 120,875 km (0.111 R)
• M2: 449,093 km (0.1 R)
• M3: 1,107,174 km (0.059 R)
• M4: 1,569,581 km (0.101 R)
• M5: 2,016,579 km (0.034 R)
• M6: 2,430,816 km (0.119 R)
• M7: 2,790,150 km (0.102 R)
• M8: 3,359,968 km (0.117 R)
• M9: 3,692,075 km (0.102 R)
• M10: 4,169,143 km (0.077 R)
• M11: 4,845,625 km (0.105 R)
• M12: 5,721,071 km (0.117 R)
• M13: 6,388,577 km (0.111 R)
• M14: 7,047,705 km (0.078 R)
• M15: 7,814,843 km (0.034 R)
• M16: 8,268,274 km (0.116 R)
• M17: 8,704,801 km (0.118 R)
• M18: 9,051,120 km (0.071 R)
• M19: 9,882,435 km (0.066 R)
• M20: 11,407,436 km (0.027 R)
• M21: 11,822,421 km (0.087 R)
• M22: 12,904,312 km (0.11 R)
• M23: 13,400,678 km (0.115 R)
• M24: 15,164,437 km (0.111 R)
• M25: 15,464,381 km (0.091 R)
• M26: 15,870,539 km (0.115 R)
• M27: 16,283,728 km (0.057 R)
• M28: 17,185,504 km (0.031 R)
• M29: 19,379,955 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 480.8

Radius: 6.7

Gravity: 10.71 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 6.42 AU - 9.32 AU

Year: 14255 Days

Day: 20.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 62,958,578 km

• M1: 86,019 km (0.106 R)
• M2: 352,752 km (0.086 R)
• M3: 618,737 km (0.115 R)
• M4: 925,113 km (0.114 R)
• M5: 1,343,538 km (0.085 R)
• M6: 1,703,770 km (0.072 R)
• M7: 1,984,416 km (0.064 R)
• M8: 3,353,386 km (0.059 R)
• M9: 3,769,268 km (0.057 R)
• M10: 4,218,959 km (0.032 R)
• M11: 5,534,972 km (0.108 R)
• M12: 5,857,056 km (0.045 R)
• M13: 7,062,815 km (0.096 R)
• M14: 9,342,985 km (0.086 R)
• M15: 12,371,744 km (0.08 R)
• M16: 14,338,657 km (0.114 R)
• M17: 16,213,866 km (0.12 R)
• M18: 19,121,749 km (0.118 R)
• M19: 19,446,676 km (0.058 R)
• M20: 22,359,496 km (0.092 R)
• M21: 26,847,133 km (0.074 R)
• M22: 27,562,959 km (0.115 R)
• M23: 29,462,403 km (0.107 R)
• M24: 32,242,679 km (0.04 R)
• M25: 33,992,227 km (0.117 R)
• M26: 36,671,375 km (0.026 R)
• M27: 40,948,827 km (0.115 R)
• M28: 42,170,593 km (0.04 R)
• M29: 42,859,790 km (0.074 R)
• M30: 43,276,869 km (0.109 R)
• M31: 47,005,895 km (0.04 R)
• M32: 51,099,341 km (0.049 R)
• M33: 51,411,702 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 937.1

Radius: 6.3

Gravity: 23.61 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 6.72 AU - 9.26 AU

Year: 14583 Days

Day: 20 Hours

Environment

Temp: -224 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 62,958,578 km

• M1: 78,688 km (0.113 R)
• M2: 490,382 km (0.037 R)
• M3: 720,463 km (0.057 R)
• M4: 1,379,292 km (0.11 R)
• M5: 2,094,819 km (0.07 R)
• M6: 2,534,637 km (0.101 R)
• M7: 2,836,376 km (0.111 R)
• M8: 3,293,846 km (0.106 R)
• M9: 3,568,508 km (0.09 R)
• M10: 7,084,207 km (0.065 R)
• M11: 7,311,147 km (0.117 R)
• M12: 7,684,394 km (0.045 R)
• M13: 8,218,309 km (0.085 R)
• M14: 9,855,957 km (0.077 R)
• M15: 14,402,984 km (0.084 R)
• M16: 14,915,357 km (0.112 R)
• M17: 15,439,847 km (0.068 R)
• M18: 21,192,034 km (0.089 R)
• M19: 21,569,021 km (0.104 R)
• M20: 21,950,645 km (0.109 R)
• M21: 23,221,479 km (0.065 R)
• M22: 23,622,252 km (0.061 R)
• M23: 26,666,868 km (0.057 R)
• M24: 31,160,040 km (0.078 R)
• M25: 31,403,136 km (0.086 R)
• M26: 32,763,130 km (0.098 R)
• M27: 33,904,562 km (0.099 R)
• M28: 34,680,227 km (0.063 R)
• M29: 35,999,082 km (0.057 R)
• M30: 37,763,140 km (0.116 R)
• M31: 42,498,511 km (0.055 R)
• M32: 43,248,744 km (0.12 R)
• M33: 51,075,555 km (0.095 R)
• M34: 52,436,896 km (0.051 R)
• M35: 54,524,086 km (0.114 R)
• M36: 55,588,175 km (0.094 R)
• M37: 56,305,198 km (0.026 R)
• M38: 57,574,685 km (0.092 R)
• M39: 68,016,916 km (0.063 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 703.2

Radius: 7.1

Gravity: 13.95 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 6.21 AU - 9.97 AU

Year: 14857 Days

Day: 21.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,958,578 km

• M1: 88,412 km (0.117 R)
• M2: 425,307 km (0.089 R)
• M3: 1,718,730 km (0.11 R)
• M4: 1,961,228 km (0.117 R)
• M5: 2,948,873 km (0.047 R)
• M6: 3,789,015 km (0.102 R)
• M7: 4,172,584 km (0.069 R)
• M8: 5,299,056 km (0.105 R)
• M9: 5,591,220 km (0.058 R)
• M10: 8,576,147 km (0.092 R)
• M11: 11,129,334 km (0.06 R)
• M12: 11,978,302 km (0.105 R)
• M13: 14,999,730 km (0.111 R)
• M14: 21,285,234 km (0.086 R)
• M15: 31,797,476 km (0.101 R)
• M16: 33,253,213 km (0.107 R)
• M17: 34,499,962 km (0.077 R)
• M18: 35,007,248 km (0.118 R)
• M19: 46,380,576 km (0.1 R)
• M20: 48,093,023 km (0.113 R)
• M21: 50,821,688 km (0.09 R)
• M22: 62,582,175 km (0.103 R)
• M23: 62,958,563 km (0.112 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: 532 - 11,918 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit