🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.54 AU - 0.66 AU

Year: 305 Days

Day: 46.6 Hours

Environment

Temp: -128 °C

Axial Tilt: 47.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.56 AU - 0.72 AU

Year: 336 Days

Day: 33.2 Hours

Environment

Temp: -135 °C

Axial Tilt: 34.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,897,987 km

• M1: 619,934 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.3

Radius: 9.7

Gravity: 10.29 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.87 AU - 1.35 AU

Year: 767 Days

Day: 14.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,897,987 km

• M1: 129,402 km (0.1 R)
• M2: 594,801 km (0.066 R)
• M3: 1,355,955 km (0.08 R)
• M4: 1,925,175 km (0.116 R)
• M5: 2,553,486 km (0.108 R)
• M6: 2,878,263 km (0.066 R)
• M7: 3,257,942 km (0.118 R)
• M8: 3,641,511 km (0.096 R)
• M9: 4,533,863 km (0.087 R)
• M10: 4,922,069 km (0.118 R)
• M11: 5,428,757 km (0.062 R)
• M12: 6,437,047 km (0.095 R)
• M13: 6,997,291 km (0.055 R)
• M14: 7,325,060 km (0.108 R)
• M15: 8,266,928 km (0.079 R)
• M16: 8,686,849 km (0.1 R)
• M17: 9,038,404 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.7

Radius: 10.2

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.17 AU - 1.91 AU

Year: 1254 Days

Day: 10.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,897,987 km

• M1: 130,599 km (0.054 R)
• M2: 708,645 km (0.104 R)
• M3: 1,056,161 km (0.087 R)
• M4: 1,378,245 km (0.099 R)
• M5: 1,738,477 km (0.096 R)
• M6: 2,195,498 km (0.083 R)
• M7: 3,649,889 km (0.088 R)
• M8: 4,242,596 km (0.071 R)
• M9: 5,950,405 km (0.101 R)
• M10: 6,270,395 km (0.114 R)
• M11: 7,096,175 km (0.111 R)
• M12: 7,482,736 km (0.051 R)
• M13: 8,757,011 km (0.081 R)
• M14: 9,202,214 km (0.027 R)
• M15: 11,343,707 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.8

Radius: 8.9

Gravity: 10.16 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.91 AU - 2.29 AU

Year: 1996 Days

Day: 8.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 70,897,987 km

• M1: 111,002 km (0.101 R)
• M2: 538,104 km (0.11 R)
• M3: 1,251,087 km (0.077 R)
• M4: 2,308,295 km (0.097 R)
• M5: 2,982,234 km (0.08 R)
• M6: 3,529,762 km (0.098 R)
• M7: 3,837,036 km (0.12 R)
• M8: 4,589,513 km (0.097 R)
• M9: 6,843,504 km (0.096 R)
• M10: 7,468,973 km (0.077 R)
• M11: 8,510,024 km (0.095 R)
• M12: 8,866,666 km (0.071 R)
• M13: 9,166,011 km (0.061 R)
• M14: 10,140,342 km (0.093 R)
• M15: 11,029,103 km (0.09 R)
• M16: 11,848,750 km (0.085 R)
• M17: 12,499,949 km (0.077 R)
• M18: 13,003,795 km (0.119 R)
• M19: 15,156,059 km (0.098 R)
• M20: 15,440,744 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.5

Radius: 14.8

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.74 AU - 5.24 AU

Year: 7312 Days

Day: 12.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,897,987 km

• M1: 184,155 km (0.117 R)
• M2: 762,949 km (0.116 R)
• M3: 1,233,584 km (0.108 R)
• M4: 1,789,639 km (0.09 R)
• M5: 2,495,442 km (0.114 R)
• M6: 3,405,596 km (0.069 R)
• M7: 7,902,358 km (0.105 R)
• M8: 9,023,893 km (0.102 R)
• M9: 10,053,575 km (0.104 R)
• M10: 11,476,101 km (0.057 R)
• M11: 12,458,959 km (0.094 R)
• M12: 13,556,858 km (0.103 R)
• M13: 14,221,222 km (0.115 R)
• M14: 14,718,187 km (0.111 R)
• M15: 15,485,175 km (0.028 R)
• M16: 17,803,942 km (0.056 R)
• M17: 24,158,560 km (0.115 R)
• M18: 25,046,424 km (0.072 R)
• M19: 29,614,245 km (0.097 R)
• M20: 32,520,632 km (0.071 R)
• M21: 33,058,885 km (0.097 R)
• M22: 36,995,404 km (0.096 R)
• M23: 37,700,309 km (0.114 R)
• M24: 43,535,673 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.1

Radius: 9.1

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 4.54 AU - 5.84 AU

Year: 7756 Days

Day: 5.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,897,987 km

• M1: 125,513 km (0.085 R)
• M2: 508,034 km (0.116 R)
• M3: 924,216 km (0.089 R)
• M4: 1,574,368 km (0.092 R)
• M5: 4,525,485 km (0.12 R)
• M6: 5,913,005 km (0.102 R)
• M7: 8,060,333 km (0.072 R)
• M8: 8,990,383 km (0.076 R)
• M9: 10,217,235 km (0.12 R)
• M10: 11,453,213 km (0.06 R)
• M11: 12,469,731 km (0.069 R)
• M12: 13,107,765 km (0.085 R)
• M13: 15,453,011 km (0.111 R)
• M14: 17,207,046 km (0.116 R)
• M15: 19,020,172 km (0.103 R)
• M16: 19,722,983 km (0.117 R)
• M17: 22,011,980 km (0.08 R)
• M18: 23,339,512 km (0.112 R)
• M19: 23,739,985 km (0.107 R)
• M20: 24,637,124 km (0.057 R)
• M21: 26,499,019 km (0.043 R)
• M22: 27,110,575 km (0.061 R)
• M23: 31,075,666 km (0.045 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.5

Radius: 11.5

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.18 AU - 6.46 AU

Year: 8050 Days

Day: 13.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,897,987 km

• M1: 143,016 km (0.089 R)
• M2: 664,663 km (0.067 R)
• M3: 1,058,106 km (0.119 R)
• M4: 1,693,597 km (0.086 R)
• M5: 2,067,293 km (0.097 R)
• M6: 3,977,059 km (0.081 R)
• M7: 4,397,878 km (0.058 R)
• M8: 5,678,735 km (0.112 R)
• M9: 6,565,551 km (0.096 R)
• M10: 7,621,413 km (0.038 R)
• M11: 8,527,827 km (0.119 R)
• M12: 9,925,071 km (0.111 R)
• M13: 10,954,902 km (0.099 R)
• M14: 11,893,031 km (0.078 R)
• M15: 13,692,095 km (0.066 R)
• M16: 14,656,552 km (0.064 R)
• M17: 15,537,235 km (0.104 R)
• M18: 18,105,531 km (0.105 R)
• M19: 25,116,136 km (0.099 R)
• M20: 25,921,571 km (0.113 R)
• M21: 26,376,498 km (0.11 R)
• M22: 28,153,870 km (0.084 R)
• M23: 31,531,641 km (0.057 R)
• M24: 32,891,635 km (0.058 R)
• M25: 33,317,839 km (0.059 R)
• M26: 34,618,742 km (0.119 R)
• M27: 36,519,084 km (0.069 R)
• M28: 41,386,999 km (0.102 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966

Radius: 11.1

Gravity: 7.84 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 4.43 AU - 6.35 AU

Year: 8209 Days

Day: 12.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 70,897,987 km

• M1: 138,079 km (0.082 R)
• M2: 508,334 km (0.087 R)
• M3: 1,356,703 km (0.069 R)
• M4: 3,305,963 km (0.073 R)
• M5: 4,086,266 km (0.116 R)
• M6: 4,954,382 km (0.042 R)
• M7: 5,465,558 km (0.112 R)
• M8: 6,261,718 km (0.05 R)
• M9: 6,631,225 km (0.082 R)
• M10: 7,133,425 km (0.075 R)
• M11: 9,305,885 km (0.071 R)
• M12: 9,739,270 km (0.083 R)
• M13: 11,282,372 km (0.12 R)
• M14: 12,055,793 km (0.114 R)
• M15: 12,687,994 km (0.087 R)
• M16: 14,144,030 km (0.084 R)
• M17: 15,573,886 km (0.091 R)
• M18: 18,643,335 km (0.056 R)
• M19: 23,926,085 km (0.072 R)
• M20: 25,856,346 km (0.113 R)
• M21: 26,811,230 km (0.057 R)
• M22: 27,591,831 km (0.112 R)
• M23: 31,724,173 km (0.108 R)
• M24: 33,824,228 km (0.112 R)
• M25: 35,897,954 km (0.098 R)
• M26: 37,447,339 km (0.087 R)
• M27: 43,823,051 km (0.056 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 512

Radius: 4.5

Gravity: 25.28 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 9.7 AU - 10.34 AU

Year: 20807 Days

Day: 17.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 70,897,987 km

• M1: 56,099 km (0.092 R)
• M2: 622,626 km (0.055 R)
• M3: 1,059,901 km (0.083 R)
• M4: 1,344,735 km (0.101 R)
• M5: 1,874,611 km (0.12 R)
• M6: 2,555,730 km (0.115 R)
• M7: 3,172,073 km (0.082 R)
• M8: 3,673,525 km (0.106 R)
• M9: 4,556,003 km (0.087 R)
• M10: 5,119,239 km (0.1 R)
• M11: 6,340,855 km (0.085 R)
• M12: 7,841,621 km (0.047 R)
• M13: 8,339,483 km (0.079 R)
• M14: 9,125,470 km (0.094 R)
• M15: 10,662,588 km (0.089 R)
• M16: 11,971,420 km (0.1 R)
• M17: 13,037,754 km (0.119 R)
• M18: 13,664,718 km (0.111 R)
• M19: 14,166,021 km (0.092 R)
• M20: 14,531,638 km (0.09 R)
• M21: 15,434,461 km (0.091 R)
• M22: 20,238,198 km (0.1 R)
• M23: 21,362,576 km (0.076 R)
• M24: 21,746,444 km (0.09 R)
• M25: 25,625,966 km (0.055 R)
• M26: 28,646,646 km (0.069 R)
• M27: 30,062,141 km (0.066 R)
• M28: 31,031,386 km (0.069 R)
• M29: 32,397,663 km (0.12 R)
• M30: 35,383,337 km (0.073 R)
• M31: 39,402,434 km (0.093 R)
• M32: 40,416,258 km (0.051 R)
• M33: 44,024,110 km (0.106 R)
• M34: 49,494,007 km (0.082 R)
• M35: 52,218,034 km (0.034 R)
• M36: 65,112,324 km (0.09 R)
• M37: 65,313,383 km (0.071 R)
• M38: 67,757,663 km (0.054 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 237 - 13,656 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit