🌌 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: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522

Radius: 8.6

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.59 AU - 0.87 AU

Year: 409 Days

Day: 9.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,328,331 km

• M1: 107,561 km (0.1 R)
• M2: 447,746 km (0.111 R)
• M3: 899,831 km (0.046 R)
• M4: 1,374,056 km (0.047 R)
• M5: 1,686,866 km (0.044 R)
• M6: 2,104,094 km (0.063 R)
• M7: 2,477,042 km (0.107 R)
• M8: 2,934,961 km (0.041 R)
• M9: 4,654,139 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.7

Radius: 10.6

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.9 AU - 0.96 AU

Year: 588 Days

Day: 12.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,328,331 km

• M1: 132,095 km (0.109 R)
• M2: 514,467 km (0.103 R)
• M3: 852,259 km (0.087 R)
• M4: 1,196,484 km (0.045 R)
• M5: 1,592,918 km (0.111 R)
• M6: 2,244,866 km (0.094 R)
• M7: 3,032,947 km (0.092 R)
• M8: 3,565,964 km (0.109 R)
• M9: 4,259,051 km (0.089 R)
• M10: 5,023,496 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.9

Radius: 14.9

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.92 AU - 1.36 AU

Year: 798 Days

Day: 6.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,328,331 km

• M1: 185,352 km (0.1 R)
• M2: 846,724 km (0.104 R)
• M3: 1,724,564 km (0.031 R)
• M4: 2,457,145 km (0.119 R)
• M5: 3,544,871 km (0.105 R)
• M6: 4,076,542 km (0.062 R)
• M7: 4,645,911 km (0.068 R)
• M8: 5,217,076 km (0.033 R)
• M9: 5,927,367 km (0.104 R)
• M10: 6,946,577 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.5

Radius: 12.5

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.6 AU - 2.2 AU

Year: 1718 Days

Day: 12.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 71,328,331 km

• M1: 298,897 km (0.11 R)
• M2: 1,490,892 km (0.076 R)
• M3: 2,344,348 km (0.085 R)
• M4: 2,980,139 km (0.1 R)
• M5: 3,691,776 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.6

Radius: 14.9

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.64 AU - 2.96 AU

Year: 3074 Days

Day: 12.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,328,331 km

• M1: 185,801 km (0.041 R)
• M2: 734,825 km (0.064 R)
• M3: 1,304,793 km (0.047 R)
• M4: 2,186,373 km (0.028 R)
• M5: 2,748,262 km (0.098 R)
• M6: 3,292,649 km (0.097 R)
• M7: 5,723,315 km (0.081 R)
• M8: 6,515,735 km (0.11 R)
• M9: 8,138,124 km (0.075 R)
• M10: 8,661,418 km (0.088 R)
• M11: 9,174,239 km (0.092 R)
• M12: 10,474,544 km (0.06 R)
• M13: 11,206,526 km (0.08 R)
• M14: 11,739,095 km (0.036 R)
• M15: 12,569,811 km (0.072 R)
• M16: 13,780,956 km (0.073 R)
• M17: 14,392,811 km (0.088 R)
• M18: 15,530,802 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.8

Radius: 13

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.79 AU - 3.65 AU

Year: 3790 Days

Day: 10.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,328,331 km

• M1: 166,802 km (0.109 R)
• M2: 670,946 km (0.056 R)
• M3: 1,099,096 km (0.074 R)
• M4: 2,188,168 km (0.112 R)
• M5: 2,718,193 km (0.108 R)
• M6: 3,242,235 km (0.114 R)
• M7: 4,110,800 km (0.113 R)
• M8: 7,553,196 km (0.092 R)
• M9: 8,334,546 km (0.084 R)
• M10: 8,925,159 km (0.115 R)
• M11: 10,390,021 km (0.073 R)
• M12: 11,463,984 km (0.096 R)
• M13: 12,420,662 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.6

Radius: 14.3

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 5.45 AU - 6.19 AU

Year: 9211 Days

Day: 13.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,328,331 km

• M1: 178,620 km (0.115 R)
• M2: 643,420 km (0.051 R)
• M3: 1,515,875 km (0.109 R)
• M4: 2,147,777 km (0.119 R)
• M5: 2,834,580 km (0.063 R)
• M6: 4,025,380 km (0.078 R)
• M7: 6,898,107 km (0.089 R)
• M8: 10,351,125 km (0.117 R)
• M9: 11,279,829 km (0.056 R)
• M10: 12,585,669 km (0.032 R)
• M11: 15,003,320 km (0.117 R)
• M12: 17,042,638 km (0.052 R)
• M13: 18,128,868 km (0.119 R)
• M14: 18,688,963 km (0.109 R)
• M15: 19,550,946 km (0.05 R)
• M16: 23,021,317 km (0.087 R)
• M17: 30,170,749 km (0.077 R)
• M18: 34,565,934 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 689.2

Radius: 3.3

Gravity: 63.29 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 8.33 AU - 9.93 AU

Year: 18097 Days

Day: 19.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 71,328,331 km

• M1: 42,635 km (0.045 R)
• M2: 149,448 km (0.09 R)
• M3: 291,417 km (0.054 R)
• M4: 485,146 km (0.038 R)
• M5: 978,071 km (0.068 R)
• M6: 2,164,831 km (0.098 R)
• M7: 2,311,885 km (0.118 R)
• M8: 2,993,902 km (0.101 R)
• M9: 3,983,642 km (0.05 R)
• M10: 4,302,285 km (0.066 R)
• M11: 4,811,816 km (0.102 R)
• M12: 5,210,195 km (0.09 R)
• M13: 5,788,390 km (0.088 R)
• M14: 6,113,616 km (0.029 R)
• M15: 6,322,904 km (0.039 R)
• M16: 7,442,344 km (0.107 R)
• M17: 7,681,103 km (0.1 R)
• M18: 10,297,719 km (0.04 R)
• M19: 12,360,075 km (0.066 R)
• M20: 15,209,316 km (0.095 R)
• M21: 17,528,831 km (0.061 R)
• M22: 19,081,208 km (0.049 R)
• M23: 20,165,494 km (0.071 R)
• M24: 21,099,882 km (0.043 R)
• M25: 21,965,156 km (0.116 R)
• M26: 23,256,485 km (0.094 R)
• M27: 24,914,179 km (0.098 R)
• M28: 29,163,207 km (0.078 R)
• M29: 30,115,398 km (0.064 R)
• M30: 32,967,930 km (0.047 R)
• M31: 37,646,155 km (0.068 R)
• M32: 39,634,909 km (0.1 R)
• M33: 44,441,339 km (0.036 R)
• M34: 52,705,424 km (0.1 R)
• M35: 55,370,809 km (0.104 R)
• M36: 57,752,258 km (0.112 R)
• M37: 61,936,211 km (0.101 R)
• M38: 62,914,581 km (0.111 R)
• M39: 63,704,608 km (0.088 R)
• M40: 66,317,783 km (0.08 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: 243 - 11,982 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit