🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.48 AU - 0.62 AU

Year: 263 Days

Day: 16.2 Hours

Environment

Temp: -126 °C

Axial Tilt: 28.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.7

Radius: 12.6

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.77 AU - 0.97 AU

Year: 524 Days

Day: 10.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 75,817,081 km

• M1: 157,078 km (0.095 R)
• M2: 614,847 km (0.071 R)
• M3: 1,042,398 km (0.093 R)
• M4: 1,888,823 km (0.072 R)
• M5: 2,303,209 km (0.087 R)
• M6: 2,735,995 km (0.114 R)
• M7: 3,128,540 km (0.07 R)
• M8: 3,702,248 km (0.098 R)
• M9: 4,301,238 km (0.113 R)
• M10: 4,741,205 km (0.066 R)
• M11: 5,194,487 km (0.047 R)
• M12: 5,623,683 km (0.042 R)
• M13: 6,151,165 km (0.078 R)
• M14: 6,831,686 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369

Radius: 9.8

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.71 AU - 1.09 AU

Year: 551 Days

Day: 14.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 75,817,081 km

• M1: 121,922 km (0.058 R)
• M2: 564,433 km (0.096 R)
• M3: 881,281 km (0.104 R)
• M4: 1,376,450 km (0.081 R)
• M5: 2,091,827 km (0.105 R)
• M6: 2,472,554 km (0.095 R)
• M7: 3,059,426 km (0.059 R)
• M8: 3,761,788 km (0.089 R)
• M9: 4,356,290 km (0.091 R)
• M10: 4,966,500 km (0.11 R)
• M11: 5,583,292 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509

Radius: 8.5

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.93 AU - 1.15 AU

Year: 685 Days

Day: 10.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 75,817,081 km

• M1: 105,766 km (0.098 R)
• M2: 389,702 km (0.113 R)
• M3: 691,142 km (0.077 R)
• M4: 958,623 km (0.106 R)
• M5: 1,277,715 km (0.117 R)
• M6: 1,599,052 km (0.09 R)
• M7: 1,904,830 km (0.054 R)
• M8: 2,317,869 km (0.066 R)
• M9: 2,845,950 km (0.119 R)
• M10: 3,517,196 km (0.105 R)
• M11: 4,141,467 km (0.057 R)
• M12: 4,886,764 km (0.118 R)
• M13: 5,448,953 km (0.081 R)
• M14: 6,541,017 km (0.101 R)
• M15: 7,075,381 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.9

Radius: 12.9

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.71 AU - 3.69 AU

Year: 3696 Days

Day: 12.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,817,081 km

• M1: 162,912 km (0.112 R)
• M2: 794,514 km (0.08 R)
• M3: 1,472,043 km (0.111 R)
• M4: 2,757,388 km (0.094 R)
• M5: 4,185,300 km (0.072 R)
• M6: 6,195,895 km (0.068 R)
• M7: 6,881,801 km (0.105 R)
• M8: 7,366,798 km (0.051 R)
• M9: 9,247,093 km (0.091 R)
• M10: 12,684,703 km (0.037 R)
• M11: 16,463,994 km (0.063 R)
• M12: 17,837,153 km (0.098 R)
• M13: 20,129,889 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.8

Radius: 13.1

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.91 AU - 4.15 AU

Year: 4282 Days

Day: 9.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 75,817,081 km

• M1: 162,912 km (0.106 R)
• M2: 756,367 km (0.047 R)
• M3: 1,297,313 km (0.114 R)
• M4: 1,789,041 km (0.09 R)
• M5: 2,239,031 km (0.112 R)
• M6: 3,199,001 km (0.076 R)
• M7: 3,914,378 km (0.118 R)
• M8: 4,345,968 km (0.081 R)
• M9: 5,305,937 km (0.118 R)
• M10: 5,779,115 km (0.108 R)
• M11: 6,464,124 km (0.061 R)
• M12: 6,875,069 km (0.034 R)
• M13: 8,434,328 km (0.102 R)
• M14: 9,159,279 km (0.087 R)
• M15: 9,719,822 km (0.086 R)
• M16: 11,494,053 km (0.061 R)
• M17: 13,991,141 km (0.072 R)
• M18: 15,731,413 km (0.11 R)
• M19: 16,303,625 km (0.113 R)
• M20: 16,712,476 km (0.082 R)
• M21: 17,918,534 km (0.118 R)
• M22: 24,299,631 km (0.045 R)
• M23: 26,643,979 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.8

Radius: 12.7

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 3.33 AU - 5.35 AU

Year: 5838 Days

Day: 10.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,817,081 km

• M1: 167,849 km (0.034 R)
• M2: 602,580 km (0.076 R)
• M3: 1,254,977 km (0.119 R)
• M4: 2,619,309 km (0.106 R)
• M5: 4,867,915 km (0.119 R)
• M6: 5,572,221 km (0.047 R)
• M7: 7,702,046 km (0.049 R)
• M8: 8,479,955 km (0.083 R)
• M9: 10,987,964 km (0.087 R)
• M10: 11,712,915 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 256.6

Radius: 4.3

Gravity: 13.88 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 5.99 AU - 6.87 AU

Year: 10528 Days

Day: 21 Hours

Environment

Temp: -218 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 75,817,081 km

• M1: 61,186 km (0.104 R)
• M2: 258,206 km (0.103 R)
• M3: 487,839 km (0.111 R)
• M4: 740,809 km (0.08 R)
• M5: 1,017,565 km (0.105 R)
• M6: 1,190,799 km (0.112 R)
• M7: 1,395,748 km (0.067 R)
• M8: 1,571,226 km (0.107 R)
• M9: 1,761,365 km (0.095 R)
• M10: 2,679,896 km (0.113 R)
• M11: 4,463,252 km (0.069 R)
• M12: 6,091,625 km (0.102 R)
• M13: 8,078,285 km (0.059 R)
• M14: 8,399,322 km (0.087 R)
• M15: 8,562,982 km (0.093 R)
• M16: 9,109,463 km (0.098 R)
• M17: 11,379,611 km (0.108 R)
• M18: 11,630,486 km (0.096 R)
• M19: 11,885,102 km (0.049 R)
• M20: 14,876,760 km (0.102 R)
• M21: 15,419,651 km (0.083 R)
• M22: 18,265,900 km (0.087 R)
• M23: 19,169,322 km (0.042 R)
• M24: 20,691,181 km (0.114 R)
• M25: 23,242,423 km (0.078 R)
• M26: 25,995,622 km (0.043 R)
• M27: 26,694,394 km (0.075 R)
• M28: 29,804,085 km (0.101 R)
• M29: 30,089,517 km (0.093 R)
• M30: 31,741,676 km (0.101 R)
• M31: 31,939,893 km (0.068 R)
• M32: 34,383,874 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 517.1

Radius: 6.4

Gravity: 12.62 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 5.37 AU - 8.69 AU

Year: 12035 Days

Day: 20.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 75,817,081 km

• M1: 85,720 km (0.113 R)
• M2: 445,203 km (0.066 R)
• M3: 1,060,799 km (0.048 R)
• M4: 1,548,338 km (0.052 R)
• M5: 2,211,505 km (0.074 R)
• M6: 3,654,526 km (0.103 R)
• M7: 3,999,349 km (0.046 R)
• M8: 4,250,674 km (0.087 R)
• M9: 6,205,320 km (0.118 R)
• M10: 6,542,812 km (0.083 R)
• M11: 7,213,609 km (0.06 R)
• M12: 7,461,044 km (0.108 R)
• M13: 7,714,164 km (0.056 R)
• M14: 8,237,457 km (0.05 R)
• M15: 8,507,930 km (0.068 R)
• M16: 9,452,192 km (0.06 R)
• M17: 10,464,670 km (0.087 R)
• M18: 11,215,203 km (0.113 R)
• M19: 12,290,213 km (0.048 R)
• M20: 17,725,104 km (0.065 R)
• M21: 19,976,851 km (0.092 R)
• M22: 20,629,995 km (0.054 R)
• M23: 20,961,953 km (0.097 R)
• M24: 21,721,760 km (0.084 R)
• M25: 24,202,991 km (0.104 R)
• M26: 25,039,093 km (0.107 R)
• M27: 30,463,811 km (0.102 R)
• M28: 34,835,659 km (0.11 R)
• M29: 35,662,188 km (0.057 R)
• M30: 36,865,553 km (0.061 R)
• M31: 38,344,926 km (0.113 R)
• M32: 41,159,461 km (0.038 R)
• M33: 43,698,436 km (0.08 R)
• M34: 43,971,601 km (0.089 R)
• M35: 49,381,060 km (0.12 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 775.4

Radius: 3.5

Gravity: 63.3 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 8.97 AU - 9.89 AU

Year: 18697 Days

Day: 15.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 75,817,081 km

• M1: 44,131 km (0.06 R)
• M2: 359,783 km (0.114 R)
• M3: 485,445 km (0.1 R)
• M4: 1,052,271 km (0.119 R)
• M5: 1,227,451 km (0.116 R)
• M6: 1,568,384 km (0.09 R)
• M7: 2,389,377 km (0.088 R)
• M8: 2,917,906 km (0.114 R)
• M9: 3,320,175 km (0.057 R)
• M10: 3,520,187 km (0.102 R)
• M11: 6,542,364 km (0.051 R)
• M12: 7,181,147 km (0.062 R)
• M13: 13,208,445 km (0.119 R)
• M14: 13,710,196 km (0.09 R)
• M15: 18,721,126 km (0.085 R)
• M16: 22,935,598 km (0.067 R)
• M17: 25,590,810 km (0.097 R)
• M18: 26,481,965 km (0.099 R)
• M19: 31,755,439 km (0.107 R)
• M20: 31,882,747 km (0.057 R)
• M21: 34,906,868 km (0.112 R)
• M22: 35,863,846 km (0.074 R)
• M23: 37,119,869 km (0.114 R)
• M24: 37,687,294 km (0.105 R)
• M25: 39,277,669 km (0.098 R)
• M26: 50,631,998 km (0.059 R)
• M27: 53,822,472 km (0.078 R)
• M28: 54,003,485 km (0.089 R)
• M29: 58,663,459 km (0.087 R)
• M30: 59,626,570 km (0.11 R)
• M31: 61,782,275 km (0.119 R)
• M32: 62,179,757 km (0.118 R)
• M33: 62,579,033 km (0.119 R)
• M34: 63,786,737 km (0.103 R)
• M35: 63,989,442 km (0.12 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: 341 - 19,074 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit