🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.7 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404

Radius: 11.9

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.25 AU - 1.55 AU

Year: 1124 Days

Day: 9.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 84,276,502 km

• M1: 147,952 km (0.12 R)
• M2: 519,703 km (0.045 R)
• M3: 901,028 km (0.116 R)
• M4: 1,945,221 km (0.078 R)
• M5: 2,407,778 km (0.095 R)
• M6: 3,586,160 km (0.088 R)
• M7: 3,987,681 km (0.109 R)
• M8: 5,025,292 km (0.088 R)
• M9: 5,646,721 km (0.11 R)
• M10: 7,367,695 km (0.103 R)
• M11: 7,921,656 km (0.099 R)
• M12: 8,529,173 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.3

Radius: 10

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.39 AU - 1.57 AU

Year: 1221 Days

Day: 8.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 84,276,502 km

• M1: 124,316 km (0.081 R)
• M2: 509,231 km (0.098 R)
• M3: 1,165,517 km (0.067 R)
• M4: 1,498,821 km (0.11 R)
• M5: 1,820,756 km (0.066 R)
• M6: 2,536,881 km (0.096 R)
• M7: 2,895,168 km (0.084 R)
• M8: 3,301,326 km (0.107 R)
• M9: 3,668,738 km (0.042 R)
• M10: 3,998,302 km (0.113 R)
• M11: 5,381,035 km (0.093 R)
• M12: 6,684,482 km (0.112 R)
• M13: 7,299,778 km (0.116 R)
• M14: 7,926,742 km (0.046 R)
• M15: 8,319,736 km (0.089 R)
• M16: 9,173,641 km (0.06 R)
• M17: 9,843,989 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.4

Radius: 13.6

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 2.88 AU - 4.16 AU

Year: 4479 Days

Day: 7.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 84,276,502 km

• M1: 169,494 km (0.094 R)
• M2: 593,604 km (0.079 R)
• M3: 1,237,623 km (0.106 R)
• M4: 1,714,691 km (0.111 R)
• M5: 3,001,232 km (0.048 R)
• M6: 3,690,131 km (0.098 R)
• M7: 7,727,628 km (0.042 R)
• M8: 9,025,988 km (0.083 R)
• M9: 12,099,925 km (0.061 R)
• M10: 12,681,112 km (0.111 R)
• M11: 13,382,577 km (0.047 R)
• M12: 15,305,508 km (0.102 R)
• M13: 16,509,023 km (0.09 R)
• M14: 19,826,355 km (0.093 R)
• M15: 27,252,543 km (0.039 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 153

Radius: 8

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 6.65 AU - 6.81 AU

Year: 11842 Days

Day: 17.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 84,276,502 km

• M1: 99,483 km (0.057 R)
• M2: 449,841 km (0.052 R)
• M3: 804,238 km (0.109 R)
• M4: 1,223,860 km (0.098 R)
• M5: 2,054,278 km (0.081 R)
• M6: 5,295,166 km (0.106 R)
• M7: 7,144,346 km (0.105 R)
• M8: 7,759,193 km (0.065 R)
• M9: 8,022,485 km (0.116 R)
• M10: 9,011,776 km (0.11 R)
• M11: 10,946,824 km (0.105 R)
• M12: 13,518,412 km (0.078 R)
• M13: 14,121,590 km (0.114 R)
• M14: 18,992,796 km (0.112 R)
• M15: 22,900,442 km (0.095 R)
• M16: 23,915,314 km (0.093 R)
• M17: 27,660,646 km (0.087 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 267.7

Radius: 4.9

Gravity: 11.15 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 7.05 AU - 7.79 AU

Year: 13709 Days

Day: 17.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 84,276,502 km

• M1: 60,886 km (0.062 R)
• M2: 288,425 km (0.114 R)
• M3: 607,218 km (0.086 R)
• M4: 930,050 km (0.109 R)
• M5: 1,125,126 km (0.111 R)
• M6: 1,410,708 km (0.106 R)
• M7: 2,075,820 km (0.051 R)
• M8: 2,356,615 km (0.116 R)
• M9: 2,544,660 km (0.102 R)
• M10: 2,824,857 km (0.111 R)
• M11: 3,423,098 km (0.059 R)
• M12: 4,374,990 km (0.119 R)
• M13: 4,573,207 km (0.045 R)
• M14: 4,836,948 km (0.076 R)
• M15: 6,063,351 km (0.071 R)
• M16: 6,381,696 km (0.091 R)
• M17: 8,313,752 km (0.104 R)
• M18: 9,959,927 km (0.077 R)
• M19: 10,403,186 km (0.111 R)
• M20: 11,811,649 km (0.027 R)
• M21: 12,030,511 km (0.115 R)
• M22: 12,933,634 km (0.106 R)
• M23: 14,495,884 km (0.049 R)
• M24: 17,489,936 km (0.11 R)
• M25: 26,116,946 km (0.088 R)
• M26: 27,147,825 km (0.099 R)
• M27: 27,338,113 km (0.07 R)
• M28: 27,914,364 km (0.119 R)
• M29: 31,229,453 km (0.095 R)
• M30: 33,143,707 km (0.089 R)
• M31: 34,797,512 km (0.103 R)
• M32: 42,218,314 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 375.6

Radius: 7

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 7.49 AU - 7.97 AU

Year: 14577 Days

Day: 18.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 84,276,502 km

• M1: 116,836 km (0.081 R)
• M2: 800,648 km (0.072 R)
• M3: 1,815,520 km (0.092 R)
• M4: 2,555,580 km (0.108 R)
• M5: 4,861,183 km (0.107 R)
• M6: 5,938,437 km (0.111 R)
• M7: 6,845,000 km (0.109 R)
• M8: 8,059,585 km (0.09 R)
• M9: 9,411,501 km (0.109 R)
• M10: 10,746,662 km (0.054 R)
• M11: 12,737,062 km (0.092 R)
• M12: 22,717,185 km (0.091 R)
• M13: 25,963,159 km (0.059 R)
• M14: 29,295,003 km (0.054 R)
• M15: 31,778,627 km (0.106 R)
• M16: 40,196,050 km (0.064 R)
• M17: 40,848,447 km (0.098 R)
• M18: 41,640,867 km (0.109 R)
• M19: 44,079,312 km (0.098 R)
• M20: 45,333,391 km (0.103 R)
• M21: 46,182,658 km (0.103 R)
• M22: 46,898,484 km (0.096 R)
• M23: 47,186,759 km (0.07 R)
• M24: 47,621,490 km (0.119 R)
• M25: 49,238,494 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 764.9

Radius: 8

Gravity: 11.95 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 8.24 AU - 12.14 AU

Year: 22062 Days

Day: 19.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 84,276,502 km

• M1: 99,483 km (0.101 R)
• M2: 444,306 km (0.077 R)
• M3: 995,873 km (0.078 R)
• M4: 1,596,060 km (0.106 R)
• M5: 2,048,144 km (0.069 R)
• M6: 2,909,828 km (0.1 R)
• M7: 3,179,852 km (0.083 R)
• M8: 3,526,171 km (0.096 R)
• M9: 4,754,968 km (0.116 R)
• M10: 8,617,735 km (0.099 R)
• M11: 9,235,275 km (0.056 R)
• M12: 9,942,274 km (0.073 R)
• M13: 10,309,088 km (0.092 R)
• M14: 10,558,618 km (0.066 R)
• M15: 15,121,203 km (0.031 R)
• M16: 25,758,360 km (0.052 R)
• M17: 26,334,611 km (0.084 R)
• M18: 27,393,315 km (0.104 R)
• M19: 28,236,149 km (0.115 R)
• M20: 31,780,871 km (0.074 R)
• M21: 32,577,330 km (0.065 R)
• M22: 34,487,396 km (0.081 R)
• M23: 35,328,285 km (0.114 R)
• M24: 35,753,891 km (0.091 R)
• M25: 43,359,896 km (0.072 R)
• M26: 45,836,040 km (0.105 R)
• M27: 48,930,023 km (0.11 R)
• M28: 49,635,975 km (0.075 R)
• M29: 55,339,394 km (0.093 R)
• M30: 60,043,798 km (0.118 R)
• M31: 66,290,407 km (0.101 R)
• M32: 67,371,999 km (0.055 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 240 - 11,205 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit