🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.7

Radius: 10.3

Gravity: 7.15 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.49 AU - 0.81 AU

Year: 362 Days

Day: 13.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,001,740 km

• M1: 128,056 km (0.082 R)
• M2: 520,451 km (0.081 R)
• M3: 860,038 km (0.08 R)
• M4: 1,529,489 km (0.119 R)
• M5: 1,976,038 km (0.074 R)
• M6: 2,353,474 km (0.108 R)
• M7: 2,789,252 km (0.079 R)
• M8: 3,346,355 km (0.119 R)
• M9: 3,950,581 km (0.114 R)
• M10: 4,712,183 km (0.117 R)
• M11: 5,329,574 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.6

Radius: 11.4

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1 AU - 1.26 AU

Year: 829 Days

Day: 15 Hours

Environment

Temp: -170 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,001,740 km

• M1: 143,913 km (0.108 R)
• M2: 865,274 km (0.076 R)
• M3: 1,241,064 km (0.119 R)
• M4: 1,751,043 km (0.101 R)
• M5: 2,314,129 km (0.038 R)
• M6: 2,896,364 km (0.112 R)
• M7: 3,426,090 km (0.108 R)
• M8: 4,019,545 km (0.086 R)
• M9: 6,182,730 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867.5

Radius: 15

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.37 AU - 2.13 AU

Year: 1598 Days

Day: 8.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,001,740 km

• M1: 186,997 km (0.067 R)
• M2: 738,565 km (0.117 R)
• M3: 1,428,211 km (0.071 R)
• M4: 2,049,640 km (0.113 R)
• M5: 2,641,898 km (0.116 R)
• M6: 3,644,204 km (0.072 R)
• M7: 4,503,644 km (0.1 R)
• M8: 5,360,541 km (0.116 R)
• M9: 6,200,533 km (0.114 R)
• M10: 6,939,845 km (0.074 R)
• M11: 7,511,459 km (0.066 R)
• M12: 8,203,199 km (0.11 R)
• M13: 8,936,977 km (0.109 R)
• M14: 10,396,304 km (0.028 R)
• M15: 11,404,594 km (0.099 R)
• M16: 12,319,983 km (0.088 R)
• M17: 12,876,188 km (0.097 R)
• M18: 14,912,065 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.5

Radius: 13.8

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.92 AU - 3.02 AU

Year: 3533 Days

Day: 9.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,001,740 km

• M1: 175,329 km (0.051 R)
• M2: 676,781 km (0.115 R)
• M3: 1,363,734 km (0.069 R)
• M4: 2,480,781 km (0.093 R)
• M5: 3,769,866 km (0.109 R)
• M6: 7,489,767 km (0.025 R)
• M7: 9,195,033 km (0.049 R)
• M8: 10,240,273 km (0.115 R)
• M9: 11,693,467 km (0.065 R)
• M10: 12,258,050 km (0.064 R)
• M11: 13,770,634 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102

Radius: 11.8

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 3.15 AU - 3.95 AU

Year: 4617 Days

Day: 10.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,001,740 km

• M1: 146,756 km (0.1 R)
• M2: 1,031,477 km (0.086 R)
• M3: 1,757,476 km (0.078 R)
• M4: 2,359,158 km (0.073 R)
• M5: 3,833,745 km (0.053 R)
• M6: 4,707,695 km (0.11 R)
• M7: 5,458,228 km (0.057 R)
• M8: 6,436,897 km (0.104 R)
• M9: 8,802,788 km (0.078 R)
• M10: 11,736,103 km (0.039 R)
• M11: 13,278,606 km (0.111 R)
• M12: 13,653,050 km (0.044 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 584

Radius: 3.9

Gravity: 38.4 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 6.39 AU - 7.01 AU

Year: 11971 Days

Day: 18.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,001,740 km

• M1: 48,619 km (0.107 R)
• M2: 177,273 km (0.081 R)
• M3: 309,069 km (0.065 R)
• M4: 470,485 km (0.081 R)
• M5: 810,671 km (0.083 R)
• M6: 990,488 km (0.09 R)
• M7: 1,618,350 km (0.05 R)
• M8: 1,973,196 km (0.102 R)
• M9: 3,108,644 km (0.109 R)
• M10: 3,324,813 km (0.037 R)
• M11: 3,499,842 km (0.066 R)
• M12: 3,841,374 km (0.101 R)
• M13: 5,229,044 km (0.095 R)
• M14: 5,710,001 km (0.08 R)
• M15: 6,182,581 km (0.093 R)
• M16: 6,759,729 km (0.092 R)
• M17: 7,288,259 km (0.1 R)
• M18: 8,199,459 km (0.114 R)
• M19: 9,087,023 km (0.095 R)
• M20: 9,281,800 km (0.116 R)
• M21: 13,468,446 km (0.107 R)
• M22: 14,107,378 km (0.114 R)
• M23: 17,086,171 km (0.108 R)
• M24: 17,986,750 km (0.072 R)
• M25: 19,076,720 km (0.088 R)
• M26: 19,718,944 km (0.091 R)
• M27: 22,255,974 km (0.115 R)
• M28: 26,753,934 km (0.061 R)
• M29: 31,933,461 km (0.065 R)
• M30: 33,759,303 km (0.067 R)
• M31: 34,816,361 km (0.068 R)
• M32: 37,742,795 km (0.054 R)
• M33: 48,674,958 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 270.7

Radius: 7.8

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 6.86 AU - 7.7 AU

Year: 13558 Days

Day: 15.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 60,001,740 km

• M1: 98,136 km (0.112 R)
• M2: 364,869 km (0.104 R)
• M3: 620,083 km (0.028 R)
• M4: 870,211 km (0.116 R)
• M5: 1,428,061 km (0.072 R)
• M6: 1,847,085 km (0.106 R)
• M7: 2,364,245 km (0.035 R)
• M8: 4,014,758 km (0.084 R)
• M9: 5,001,805 km (0.086 R)
• M10: 5,279,907 km (0.041 R)
• M11: 6,003,662 km (0.117 R)
• M12: 6,389,475 km (0.105 R)
• M13: 7,367,546 km (0.082 R)
• M14: 9,383,377 km (0.106 R)
• M15: 13,794,868 km (0.046 R)
• M16: 14,097,954 km (0.099 R)
• M17: 15,944,141 km (0.086 R)
• M18: 17,167,852 km (0.113 R)
• M19: 17,945,761 km (0.083 R)
• M20: 19,724,479 km (0.065 R)
• M21: 20,894,035 km (0.028 R)
• M22: 21,862,382 km (0.07 R)
• M23: 23,888,536 km (0.037 R)
• M24: 26,406,717 km (0.12 R)
• M25: 27,062,853 km (0.057 R)
• M26: 28,505,425 km (0.054 R)
• M27: 30,815,815 km (0.084 R)
• M28: 33,139,968 km (0.071 R)
• M29: 34,455,681 km (0.041 R)
• M30: 38,253,073 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899.2

Radius: 4.4

Gravity: 46.45 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 8.55 AU - 9.37 AU

Year: 18513 Days

Day: 18 Hours

Environment

Temp: -238 °C

Axial Tilt: 115 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 60,001,740 km

• M1: 57,146 km (0.088 R)
• M2: 216,767 km (0.086 R)
• M3: 378,632 km (0.091 R)
• M4: 563,535 km (0.094 R)
• M5: 955,482 km (0.064 R)
• M6: 2,320,413 km (0.063 R)
• M7: 2,573,682 km (0.102 R)
• M8: 2,845,052 km (0.114 R)
• M9: 3,217,850 km (0.04 R)
• M10: 3,652,582 km (0.116 R)
• M11: 3,868,302 km (0.108 R)
• M12: 4,462,504 km (0.113 R)
• M13: 4,854,451 km (0.026 R)
• M14: 5,268,837 km (0.089 R)
• M15: 5,544,546 km (0.12 R)
• M16: 7,260,433 km (0.105 R)
• M17: 7,801,828 km (0.043 R)
• M18: 9,075,804 km (0.091 R)
• M19: 9,472,088 km (0.116 R)
• M20: 9,762,159 km (0.114 R)
• M21: 11,301,970 km (0.116 R)
• M22: 13,793,223 km (0.025 R)
• M23: 14,165,871 km (0.111 R)
• M24: 14,931,214 km (0.062 R)
• M25: 15,804,566 km (0.068 R)
• M26: 16,377,676 km (0.045 R)
• M27: 19,175,305 km (0.03 R)
• M28: 20,110,891 km (0.099 R)
• M29: 21,174,831 km (0.068 R)
• M30: 21,372,150 km (0.084 R)
• M31: 21,971,589 km (0.067 R)
• M32: 22,479,773 km (0.113 R)
• M33: 24,590,748 km (0.086 R)
• M34: 32,883,407 km (0.109 R)
• M35: 38,306,031 km (0.095 R)
• M36: 41,922,709 km (0.119 R)
• M37: 47,426,564 km (0.087 R)
• M38: 53,392,677 km (0.105 R)
• M39: 59,251,079 km (0.117 R)
• M40: 59,446,903 km (0.116 R)
• M41: 64,070,225 km (0.107 R)
• M42: 68,065,685 km (0.077 R)
• M43: 76,548,482 km (0.088 R)
• M44: 78,184,186 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 238.8

Radius: 4.6

Gravity: 11.29 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 9.96 AU - 11.18 AU

Year: 23720 Days

Day: 15 Hours

Environment

Temp: -242 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,001,740 km

• M1: 60,288 km (0.114 R)
• M2: 251,474 km (0.041 R)
• M3: 971,489 km (0.066 R)
• M4: 1,430,305 km (0.096 R)
• M5: 1,913,058 km (0.106 R)
• M6: 3,346,504 km (0.105 R)
• M7: 3,667,990 km (0.04 R)
• M8: 6,603,998 km (0.068 R)
• M9: 8,880,878 km (0.069 R)
• M10: 9,082,984 km (0.108 R)
• M11: 15,771,356 km (0.066 R)
• M12: 19,749,462 km (0.11 R)
• M13: 28,068,600 km (0.099 R)
• M14: 29,950,242 km (0.051 R)
• M15: 30,176,882 km (0.05 R)
• M16: 37,787,674 km (0.057 R)
• M17: 44,048,794 km (0.095 R)
• M18: 46,280,196 km (0.112 R)
• M19: 51,128,214 km (0.096 R)
• M20: 52,432,109 km (0.119 R)
• M21: 53,258,188 km (0.084 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 344 - 19,266 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit