🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.2

Radius: 14.3

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.65 AU - 0.69 AU

Year: 372 Days

Day: 9.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,729,721 km

• M1: 177,872 km (0.115 R)
• M2: 858,991 km (0.062 R)
• M3: 1,489,097 km (0.113 R)
• M4: 1,964,220 km (0.062 R)
• M5: 2,514,142 km (0.098 R)
• M6: 3,089,944 km (0.089 R)
• M7: 3,904,804 km (0.117 R)
• M8: 4,384,564 km (0.074 R)
• M9: 5,693,545 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.8

Radius: 11.6

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.65 AU - 0.95 AU

Year: 485 Days

Day: 14.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,729,721 km

• M1: 144,362 km (0.11 R)
• M2: 550,670 km (0.102 R)
• M3: 1,104,182 km (0.082 R)
• M4: 1,743,713 km (0.1 R)
• M5: 2,404,636 km (0.083 R)
• M6: 2,844,753 km (0.097 R)
• M7: 3,464,986 km (0.105 R)
• M8: 4,147,003 km (0.057 R)
• M9: 4,569,766 km (0.095 R)
• M10: 5,265,695 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819.4

Radius: 12.6

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.11 AU - 1.19 AU

Year: 836 Days

Day: 7.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,729,721 km

• M1: 159,023 km (0.057 R)
• M2: 802,293 km (0.109 R)
• M3: 1,304,045 km (0.082 R)
• M4: 2,044,255 km (0.086 R)
• M5: 2,762,025 km (0.058 R)
• M6: 3,154,122 km (0.11 R)
• M7: 5,096,051 km (0.104 R)
• M8: 6,571,236 km (0.107 R)
• M9: 7,277,488 km (0.098 R)
• M10: 7,784,176 km (0.064 R)
• M11: 8,237,158 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828

Radius: 8.9

Gravity: 10.45 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.89 AU - 1.41 AU

Year: 836 Days

Day: 7.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,729,721 km

• M1: 110,702 km (0.094 R)
• M2: 448,345 km (0.109 R)
• M3: 820,844 km (0.115 R)
• M4: 1,346,830 km (0.079 R)
• M5: 2,456,547 km (0.079 R)
• M6: 3,227,574 km (0.063 R)
• M7: 3,508,220 km (0.094 R)
• M8: 4,799,100 km (0.081 R)
• M9: 5,414,695 km (0.077 R)
• M10: 5,894,754 km (0.027 R)
• M11: 6,230,452 km (0.076 R)
• M12: 7,102,458 km (0.088 R)
• M13: 9,450,546 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691.9

Radius: 11.1

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.13 AU - 1.73 AU

Year: 1160 Days

Day: 11.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,729,721 km

• M1: 138,079 km (0.099 R)
• M2: 511,774 km (0.107 R)
• M3: 1,326,335 km (0.111 R)
• M4: 1,708,707 km (0.115 R)
• M5: 2,230,654 km (0.106 R)
• M6: 2,883,649 km (0.03 R)
• M7: 3,327,954 km (0.069 R)
• M8: 3,850,200 km (0.109 R)
• M9: 4,233,919 km (0.052 R)
• M10: 4,810,469 km (0.074 R)
• M11: 5,197,030 km (0.101 R)
• M12: 6,098,956 km (0.06 R)
• M13: 6,883,447 km (0.094 R)
• M14: 7,838,629 km (0.091 R)
• M15: 9,765,300 km (0.09 R)
• M16: 11,135,617 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714.1

Radius: 12.2

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 3.28 AU - 4.16 AU

Year: 4866 Days

Day: 14 Hours

Environment

Temp: -228 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,729,721 km

• M1: 151,692 km (0.111 R)
• M2: 570,566 km (0.108 R)
• M3: 1,095,804 km (0.06 R)
• M4: 2,198,640 km (0.05 R)
• M5: 2,770,403 km (0.107 R)
• M6: 3,522,880 km (0.109 R)
• M7: 6,080,106 km (0.076 R)
• M8: 7,351,239 km (0.097 R)
• M9: 7,921,207 km (0.055 R)
• M10: 9,029,578 km (0.088 R)
• M11: 9,852,366 km (0.066 R)
• M12: 11,272,050 km (0.09 R)
• M13: 14,131,912 km (0.068 R)
• M14: 14,734,941 km (0.036 R)
• M15: 17,012,270 km (0.091 R)
• M16: 18,011,135 km (0.065 R)
• M17: 24,842,671 km (0.081 R)
• M18: 26,870,022 km (0.107 R)
• M19: 28,569,453 km (0.092 R)
• M20: 29,445,648 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.8

Radius: 14.5

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4.16 AU - 4.46 AU

Year: 6069 Days

Day: 11.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,729,721 km

• M1: 180,265 km (0.076 R)
• M2: 694,583 km (0.075 R)
• M3: 1,478,177 km (0.117 R)
• M4: 2,138,352 km (0.085 R)
• M5: 4,660,422 km (0.108 R)
• M6: 6,219,681 km (0.104 R)
• M7: 8,141,116 km (0.101 R)
• M8: 10,001,964 km (0.097 R)
• M9: 11,468,472 km (0.113 R)
• M10: 12,572,654 km (0.104 R)
• M11: 15,613,829 km (0.089 R)
• M12: 18,724,717 km (0.096 R)
• M13: 21,296,154 km (0.085 R)
• M14: 24,171,874 km (0.043 R)
• M15: 28,140,556 km (0.103 R)
• M16: 29,349,756 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404

Radius: 14

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 3.74 AU - 4.9 AU

Year: 6090 Days

Day: 9.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,729,721 km

• M1: 175,927 km (0.116 R)
• M2: 708,346 km (0.09 R)
• M3: 1,352,963 km (0.065 R)
• M4: 1,863,840 km (0.056 R)
• M5: 2,553,336 km (0.119 R)
• M6: 5,490,391 km (0.042 R)
• M7: 7,699,354 km (0.086 R)
• M8: 8,654,237 km (0.093 R)
• M9: 10,020,514 km (0.113 R)
• M10: 11,113,626 km (0.082 R)
• M11: 12,188,038 km (0.108 R)
• M12: 15,714,209 km (0.102 R)
• M13: 18,179,582 km (0.077 R)
• M14: 20,343,216 km (0.101 R)
• M15: 21,735,374 km (0.101 R)
• M16: 25,020,393 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425.7

Radius: 7.8

Gravity: 7 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 6.45 AU - 8.17 AU

Year: 13405 Days

Day: 23.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 49,729,721 km

• M1: 108,309 km (0.053 R)
• M2: 749,336 km (0.069 R)
• M3: 2,030,641 km (0.096 R)
• M4: 2,280,171 km (0.06 R)
• M5: 3,394,076 km (0.111 R)
• M6: 3,933,975 km (0.117 R)
• M7: 4,411,940 km (0.09 R)
• M8: 5,152,001 km (0.094 R)
• M9: 7,075,830 km (0.113 R)
• M10: 8,354,592 km (0.099 R)
• M11: 10,238,777 km (0.118 R)
• M12: 10,710,759 km (0.089 R)
• M13: 12,214,367 km (0.111 R)
• M14: 13,291,771 km (0.11 R)
• M15: 13,853,660 km (0.083 R)
• M16: 14,236,930 km (0.072 R)
• M17: 15,091,583 km (0.03 R)
• M18: 22,492,189 km (0.088 R)
• M19: 23,923,093 km (0.096 R)
• M20: 27,362,947 km (0.068 R)
• M21: 35,679,541 km (0.091 R)
• M22: 40,927,733 km (0.096 R)
• M23: 41,717,161 km (0.075 R)
• M24: 42,115,541 km (0.117 R)
• M25: 43,326,236 km (0.09 R)
• M26: 48,548,099 km (0.075 R)
• M27: 49,432,522 km (0.1 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 13,048 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit