🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.2

Radius: 14

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.43 AU - 0.61 AU

Year: 264 Days

Day: 5.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 87,231,040 km

• M1: 174,132 km (0.105 R)
• M2: 671,246 km (0.11 R)
• M3: 1,123,330 km (0.093 R)
• M4: 1,687,015 km (0.108 R)
• M5: 2,295,729 km (0.115 R)
• M6: 2,840,265 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.2

Radius: 9.9

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.98 AU - 1.36 AU

Year: 890 Days

Day: 9.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 87,231,040 km

• M1: 123,418 km (0.118 R)
• M2: 498,610 km (0.084 R)
• M3: 967,001 km (0.066 R)
• M4: 1,478,177 km (0.119 R)
• M5: 2,055,624 km (0.112 R)
• M6: 2,724,028 km (0.096 R)
• M7: 3,162,349 km (0.095 R)
• M8: 4,124,114 km (0.105 R)
• M9: 4,957,374 km (0.058 R)
• M10: 5,508,792 km (0.091 R)
• M11: 6,175,251 km (0.105 R)
• M12: 6,635,713 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.3

Radius: 8.8

Gravity: 11.74 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.45 AU - 3.77 AU

Year: 3855 Days

Day: 8.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 87,231,040 km

• M1: 109,506 km (0.1 R)
• M2: 1,054,815 km (0.099 R)
• M3: 2,198,191 km (0.112 R)
• M4: 2,886,042 km (0.092 R)
• M5: 3,460,199 km (0.11 R)
• M6: 4,040,190 km (0.108 R)
• M7: 4,683,610 km (0.069 R)
• M8: 4,964,555 km (0.086 R)
• M9: 5,283,946 km (0.091 R)
• M10: 6,203,674 km (0.106 R)
• M11: 7,813,347 km (0.086 R)
• M12: 8,357,285 km (0.091 R)
• M13: 9,440,224 km (0.103 R)
• M14: 9,973,690 km (0.074 R)
• M15: 10,701,484 km (0.089 R)
• M16: 12,700,111 km (0.117 R)
• M17: 13,047,477 km (0.116 R)
• M18: 14,022,556 km (0.116 R)
• M19: 14,717,289 km (0.113 R)
• M20: 15,716,752 km (0.093 R)
• M21: 16,701,555 km (0.092 R)
• M22: 17,239,359 km (0.095 R)
• M23: 19,440,991 km (0.1 R)
• M24: 20,507,325 km (0.087 R)
• M25: 23,343,102 km (0.079 R)
• M26: 24,777,447 km (0.092 R)
• M27: 25,242,397 km (0.096 R)
• M28: 27,572,084 km (0.082 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 745.4

Radius: 7.3

Gravity: 13.99 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 5.76 AU - 6.4 AU

Year: 10538 Days

Day: 20.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 87,231,040 km

• M1: 91,703 km (0.114 R)
• M2: 341,233 km (0.103 R)
• M3: 633,397 km (0.06 R)
• M4: 916,137 km (0.1 R)
• M5: 1,466,807 km (0.029 R)
• M6: 1,808,189 km (0.081 R)
• M7: 2,111,574 km (0.066 R)
• M8: 2,409,573 km (0.075 R)
• M9: 2,931,669 km (0.118 R)
• M10: 3,603,364 km (0.086 R)
• M11: 3,975,563 km (0.097 R)
• M12: 6,347,438 km (0.092 R)
• M13: 6,693,458 km (0.081 R)
• M14: 8,803,386 km (0.085 R)
• M15: 9,088,968 km (0.1 R)
• M16: 10,611,127 km (0.114 R)
• M17: 11,265,168 km (0.081 R)
• M18: 11,715,757 km (0.106 R)
• M19: 13,388,411 km (0.085 R)
• M20: 15,904,498 km (0.096 R)
• M21: 17,273,767 km (0.105 R)
• M22: 20,659,316 km (0.109 R)
• M23: 29,442,955 km (0.1 R)
• M24: 30,514,076 km (0.061 R)
• M25: 32,620,414 km (0.1 R)
• M26: 37,616,833 km (0.101 R)
• M27: 40,426,880 km (0.062 R)
• M28: 41,216,906 km (0.118 R)
• M29: 46,174,580 km (0.118 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 414.4

Radius: 6.8

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 4.73 AU - 7.79 AU

Year: 11010 Days

Day: 19.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 177.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 87,231,040 km

• M1: 85,420 km (0.103 R)
• M2: 344,673 km (0.073 R)
• M3: 602,580 km (0.106 R)
• M4: 971,937 km (0.058 R)
• M5: 1,606,831 km (0.059 R)
• M6: 2,182,334 km (0.101 R)
• M7: 3,349,646 km (0.105 R)
• M8: 3,586,759 km (0.1 R)
• M9: 3,911,685 km (0.113 R)
• M10: 4,148,199 km (0.072 R)
• M11: 4,563,483 km (0.109 R)
• M12: 4,796,108 km (0.095 R)
• M13: 5,128,813 km (0.043 R)
• M14: 6,255,884 km (0.098 R)
• M15: 7,029,454 km (0.081 R)
• M16: 8,588,863 km (0.059 R)
• M17: 9,590,271 km (0.105 R)
• M18: 10,871,427 km (0.067 R)
• M19: 12,943,357 km (0.118 R)
• M20: 14,379,796 km (0.117 R)
• M21: 16,388,297 km (0.111 R)
• M22: 16,728,931 km (0.096 R)
• M23: 17,424,262 km (0.096 R)
• M24: 26,112,608 km (0.062 R)
• M25: 26,858,951 km (0.066 R)
• M26: 27,142,439 km (0.086 R)
• M27: 27,908,231 km (0.051 R)
• M28: 28,199,049 km (0.119 R)
• M29: 39,334,965 km (0.095 R)
• M30: 39,700,582 km (0.073 R)
• M31: 43,223,762 km (0.12 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 981

Radius: 5.9

Gravity: 28.18 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 5.72 AU - 7.84 AU

Year: 12409 Days

Day: 18.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 87,231,040 km

• M1: 73,453 km (0.059 R)
• M2: 309,967 km (0.051 R)
• M3: 626,067 km (0.079 R)
• M4: 892,501 km (0.117 R)
• M5: 1,194,090 km (0.115 R)
• M6: 1,383,631 km (0.095 R)
• M7: 1,657,096 km (0.074 R)
• M8: 1,947,914 km (0.106 R)
• M9: 3,103,707 km (0.103 R)
• M10: 4,121,870 km (0.081 R)
• M11: 5,274,073 km (0.114 R)
• M12: 5,752,188 km (0.117 R)
• M13: 5,943,523 km (0.117 R)
• M14: 6,420,292 km (0.093 R)
• M15: 7,182,942 km (0.094 R)
• M16: 10,498,330 km (0.087 R)
• M17: 11,614,330 km (0.075 R)
• M18: 13,873,557 km (0.071 R)
• M19: 16,873,593 km (0.098 R)
• M20: 17,505,494 km (0.044 R)
• M21: 18,153,103 km (0.08 R)
• M22: 21,084,324 km (0.03 R)
• M23: 22,661,833 km (0.12 R)
• M24: 27,000,022 km (0.093 R)
• M25: 29,419,917 km (0.046 R)
• M26: 32,220,389 km (0.1 R)
• M27: 33,933,435 km (0.117 R)
• M28: 40,827,952 km (0.069 R)
• M29: 43,563,199 km (0.087 R)
• M30: 50,361,525 km (0.118 R)
• M31: 51,176,235 km (0.095 R)
• M32: 62,018,789 km (0.054 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 42.4

Radius: 4.3

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 7.54 AU - 7.82 AU

Year: 14961 Days

Day: 16.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 87,231,040 km

• M1: 53,556 km (0.054 R)
• M2: 657,034 km (0.09 R)
• M3: 1,499,120 km (0.108 R)
• M4: 2,446,823 km (0.101 R)
• M5: 3,018,885 km (0.056 R)
• M6: 5,293,072 km (0.117 R)
• M7: 6,066,642 km (0.108 R)
• M8: 7,664,946 km (0.1 R)
• M9: 9,920,583 km (0.111 R)
• M10: 13,303,739 km (0.098 R)
• M11: 16,071,299 km (0.111 R)
• M12: 17,383,273 km (0.063 R)
• M13: 20,939,214 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 294.3

Radius: 3.8

Gravity: 20.38 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 9.44 AU - 10.26 AU

Year: 21730 Days

Day: 20.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 87,231,040 km

• M1: 50,265 km (0.104 R)
• M2: 168,597 km (0.06 R)
• M3: 1,253,929 km (0.091 R)
• M4: 1,465,610 km (0.115 R)
• M5: 3,480,394 km (0.097 R)
• M6: 6,422,985 km (0.108 R)
• M7: 17,797,659 km (0.078 R)
• M8: 21,022,839 km (0.052 R)
• M9: 23,537,430 km (0.097 R)
• M10: 25,422,363 km (0.06 R)
• M11: 26,245,301 km (0.112 R)
• M12: 32,629,091 km (0.057 R)
• M13: 42,647,211 km (0.086 R)
• M14: 49,132,578 km (0.032 R)
• M15: 54,702,855 km (0.038 R)
• M16: 58,168,439 km (0.032 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 850.8

Radius: 6.4

Gravity: 20.77 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 9.3 AU - 10.58 AU

Year: 22029 Days

Day: 24.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 87,231,040 km

• M1: 81,980 km (0.042 R)
• M2: 339,886 km (0.051 R)
• M3: 562,937 km (0.039 R)
• M4: 1,153,848 km (0.101 R)
• M5: 2,528,054 km (0.096 R)
• M6: 3,016,491 km (0.087 R)
• M7: 4,458,316 km (0.088 R)
• M8: 4,749,433 km (0.12 R)
• M9: 5,657,343 km (0.07 R)
• M10: 10,522,415 km (0.086 R)
• M11: 11,370,485 km (0.103 R)
• M12: 11,776,793 km (0.04 R)
• M13: 12,053,100 km (0.115 R)
• M14: 15,384,795 km (0.092 R)
• M15: 35,252,439 km (0.12 R)
• M16: 36,116,217 km (0.071 R)
• M17: 40,177,949 km (0.045 R)
• M18: 48,308,144 km (0.079 R)
• M19: 50,091,949 km (0.107 R)
• M20: 55,900,386 km (0.068 R)
• M21: 57,271,450 km (0.116 R)
• M22: 58,464,194 km (0.078 R)
• M23: 61,518,684 km (0.032 R)
• M24: 70,406,891 km (0.052 R)
• M25: 71,317,195 km (0.115 R)
• M26: 75,748,882 km (0.099 R)
• M27: 76,465,007 km (0.119 R)
• M28: 83,621,619 km (0.196 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: 190 - 15,667 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit