🌌 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 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.58 AU - 0.72 AU

Year: 338 Days

Day: 19.6 Hours

Environment

Temp: -123 °C

Axial Tilt: 10.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 71,566,384 km

• M1: 51,761 km (0.092 R)
• M2: 124,914 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995

Radius: 12.9

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.76 AU - 0.82 AU

Year: 453 Days

Day: 13.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,566,384 km

• M1: 160,519 km (0.094 R)
• M2: 618,288 km (0.1 R)
• M3: 1,086,679 km (0.063 R)
• M4: 1,838,109 km (0.081 R)
• M5: 2,261,621 km (0.106 R)
• M6: 2,729,563 km (0.03 R)
• M7: 4,071,306 km (0.065 R)
• M8: 4,554,058 km (0.106 R)
• M9: 5,341,841 km (0.048 R)
• M10: 5,831,774 km (0.119 R)
• M11: 6,428,221 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.1

Radius: 9.8

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.18 AU - 1.6 AU

Year: 1058 Days

Day: 14.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,566,384 km

• M1: 122,371 km (0.116 R)
• M2: 439,070 km (0.05 R)
• M3: 1,178,981 km (0.101 R)
• M4: 1,646,025 km (0.036 R)
• M5: 2,286,753 km (0.112 R)
• M6: 3,059,276 km (0.099 R)
• M7: 3,780,039 km (0.116 R)
• M8: 4,387,706 km (0.111 R)
• M9: 5,537,365 km (0.057 R)
• M10: 6,673,411 km (0.113 R)
• M11: 7,014,943 km (0.115 R)
• M12: 7,882,611 km (0.101 R)
• M13: 9,570,973 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.7

Radius: 12.2

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.32 AU - 1.56 AU

Year: 1116 Days

Day: 12.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,566,384 km

• M1: 151,692 km (0.111 R)
• M2: 682,316 km (0.027 R)
• M3: 1,166,115 km (0.101 R)
• M4: 1,579,454 km (0.091 R)
• M5: 2,140,446 km (0.078 R)
• M6: 2,600,909 km (0.11 R)
• M7: 3,283,224 km (0.086 R)
• M8: 4,158,970 km (0.095 R)
• M9: 4,694,381 km (0.112 R)
• M10: 5,517,469 km (0.084 R)
• M11: 7,334,634 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.7

Radius: 9.8

Gravity: 8.36 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.25 AU - 3.35 AU

Year: 3025 Days

Day: 5.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,566,384 km

• M1: 122,670 km (0.076 R)
• M2: 885,171 km (0.096 R)
• M3: 1,306,887 km (0.105 R)
• M4: 2,370,079 km (0.099 R)
• M5: 2,819,471 km (0.091 R)
• M6: 3,162,050 km (0.087 R)
• M7: 3,728,428 km (0.087 R)
• M8: 4,036,151 km (0.088 R)
• M9: 5,113,106 km (0.098 R)
• M10: 6,313,778 km (0.115 R)
• M11: 6,995,795 km (0.103 R)
• M12: 8,471,129 km (0.099 R)
• M13: 9,337,899 km (0.104 R)
• M14: 10,026,049 km (0.117 R)
• M15: 11,163,143 km (0.109 R)
• M16: 15,716,453 km (0.072 R)
• M17: 17,817,705 km (0.086 R)
• M18: 18,224,312 km (0.073 R)
• M19: 19,481,233 km (0.116 R)
• M20: 19,850,740 km (0.119 R)
• M21: 20,603,816 km (0.049 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.1

Radius: 4.7

Gravity: 28.57 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 7.74 AU - 10.26 AU

Year: 17433 Days

Day: 18.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,566,384 km

• M1: 58,642 km (0.089 R)
• M2: 472,131 km (0.103 R)
• M3: 623,075 km (0.077 R)
• M4: 1,026,989 km (0.066 R)
• M5: 1,177,784 km (0.06 R)
• M6: 1,357,750 km (0.089 R)
• M7: 1,572,274 km (0.086 R)
• M8: 2,069,387 km (0.092 R)
• M9: 3,970,926 km (0.077 R)
• M10: 10,865,593 km (0.055 R)
• M11: 12,168,590 km (0.111 R)
• M12: 13,851,416 km (0.078 R)
• M13: 15,380,007 km (0.079 R)
• M14: 18,003,505 km (0.076 R)
• M15: 30,042,244 km (0.062 R)
• M16: 32,338,422 km (0.087 R)
• M17: 39,924,081 km (0.037 R)
• M18: 44,508,358 km (0.118 R)
• M19: 58,115,482 km (0.055 R)
• M20: 62,622,716 km (0.047 R)
• M21: 63,008,529 km (0.035 R)
• M22: 65,753,650 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 622

Radius: 5.2

Gravity: 23 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 7.69 AU - 11.47 AU

Year: 19145 Days

Day: 17.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 71,566,384 km

• M1: 65,973 km (0.088 R)
• M2: 374,294 km (0.108 R)
• M3: 628,161 km (0.111 R)
• M4: 805,435 km (0.072 R)
• M5: 1,719,927 km (0.107 R)
• M6: 2,257,282 km (0.097 R)
• M7: 2,801,220 km (0.117 R)
• M8: 4,437,970 km (0.047 R)
• M9: 4,849,813 km (0.067 R)
• M10: 5,101,587 km (0.042 R)
• M11: 5,324,338 km (0.053 R)
• M12: 5,631,462 km (0.087 R)
• M13: 6,889,132 km (0.118 R)
• M14: 8,021,737 km (0.057 R)
• M15: 8,374,190 km (0.044 R)
• M16: 9,774,426 km (0.119 R)
• M17: 10,589,584 km (0.051 R)
• M18: 11,767,219 km (0.106 R)
• M19: 13,236,719 km (0.034 R)
• M20: 14,749,602 km (0.03 R)
• M21: 15,431,918 km (0.055 R)
• M22: 16,696,618 km (0.097 R)
• M23: 18,028,787 km (0.102 R)
• M24: 21,666,110 km (0.119 R)
• M25: 28,571,548 km (0.057 R)
• M26: 35,720,980 km (0.094 R)
• M27: 36,399,705 km (0.073 R)
• M28: 39,488,452 km (0.037 R)
• M29: 43,358,699 km (0.061 R)
• M30: 45,069,500 km (0.08 R)
• M31: 45,385,301 km (0.095 R)
• M32: 46,341,680 km (0.112 R)
• M33: 47,965,266 km (0.107 R)
• M34: 48,957,399 km (0.085 R)
• M35: 57,949,428 km (0.079 R)
• M36: 59,074,554 km (0.085 R)
• M37: 59,832,716 km (0.076 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 425 - 16,316 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit