🌌 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 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.64 AU - 0.7 AU

Year: 360 Days

Day: 28.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 31.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 31,944,638 km

• M1: 320,738 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.4

Radius: 8.6

Gravity: 7.36 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.65 AU - 1.01 AU

Year: 496 Days

Day: 13.2 Hours

Environment

Temp: -138 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,944,638 km

• M1: 106,962 km (0.104 R)
• M2: 377,136 km (0.102 R)
• M3: 915,838 km (0.045 R)
• M4: 1,378,544 km (0.078 R)
• M5: 1,716,336 km (0.06 R)
• M6: 2,109,031 km (0.116 R)
• M7: 2,502,324 km (0.103 R)
• M8: 3,143,799 km (0.081 R)
• M9: 3,943,699 km (0.07 R)
• M10: 4,646,510 km (0.11 R)
• M11: 5,186,409 km (0.072 R)
• M12: 5,614,109 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.7

Radius: 15

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.76 AU - 1.08 AU

Year: 579 Days

Day: 14.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 31,944,638 km

• M1: 187,297 km (0.108 R)
• M2: 1,119,590 km (0.063 R)
• M3: 1,753,586 km (0.072 R)
• M4: 2,286,304 km (0.071 R)
• M5: 2,763,671 km (0.039 R)
• M6: 3,641,960 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.3

Radius: 8.8

Gravity: 8.51 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.09 AU - 1.49 AU

Year: 961 Days

Day: 10.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,944,638 km

• M1: 109,506 km (0.072 R)
• M2: 419,323 km (0.094 R)
• M3: 714,629 km (0.077 R)
• M4: 1,090,568 km (0.083 R)
• M5: 1,374,206 km (0.083 R)
• M6: 1,788,293 km (0.106 R)
• M7: 2,106,039 km (0.085 R)
• M8: 2,404,935 km (0.082 R)
• M9: 3,406,344 km (0.034 R)
• M10: 4,540,744 km (0.076 R)
• M11: 4,878,237 km (0.095 R)
• M12: 5,251,633 km (0.105 R)
• M13: 6,688,670 km (0.049 R)
• M14: 7,756,799 km (0.111 R)
• M15: 8,397,377 km (0.1 R)
• M16: 8,744,145 km (0.066 R)
• M17: 9,072,662 km (0.119 R)
• M18: 9,783,701 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.1

Radius: 14.4

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.94 AU - 2.3 AU

Year: 2025 Days

Day: 10.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,944,638 km

• M1: 179,218 km (0.062 R)
• M2: 797,805 km (0.115 R)
• M3: 1,286,990 km (0.109 R)
• M4: 1,983,219 km (0.087 R)
• M5: 2,696,053 km (0.107 R)
• M6: 3,521,983 km (0.115 R)
• M7: 4,063,677 km (0.097 R)
• M8: 4,660,722 km (0.075 R)
• M9: 6,058,415 km (0.084 R)
• M10: 6,590,983 km (0.064 R)
• M11: 7,330,146 km (0.075 R)
• M12: 8,940,866 km (0.054 R)
• M13: 9,956,187 km (0.099 R)
• M14: 11,203,833 km (0.045 R)
• M15: 12,384,011 km (0.088 R)
• M16: 15,280,525 km (0.113 R)
• M17: 18,602,495 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.2

Radius: 13.7

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.2 AU - 3.52 AU

Year: 3173 Days

Day: 8.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,944,638 km

• M1: 170,392 km (0.044 R)
• M2: 626,366 km (0.114 R)
• M3: 1,174,942 km (0.119 R)
• M4: 1,882,988 km (0.114 R)
• M5: 2,430,666 km (0.075 R)
• M6: 3,084,259 km (0.09 R)
• M7: 3,713,468 km (0.079 R)
• M8: 4,828,271 km (0.093 R)
• M9: 6,130,970 km (0.111 R)
• M10: 6,656,656 km (0.101 R)
• M11: 7,294,093 km (0.101 R)
• M12: 7,827,559 km (0.063 R)
• M13: 9,004,445 km (0.072 R)
• M14: 9,454,585 km (0.11 R)
• M15: 10,681,886 km (0.114 R)
• M16: 11,632,431 km (0.039 R)
• M17: 12,284,080 km (0.056 R)
• M18: 13,576,605 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.8

Radius: 13.2

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.13 AU - 4.21 AU

Year: 4612 Days

Day: 6.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 31,944,638 km

• M1: 175,030 km (0.076 R)
• M2: 661,073 km (0.095 R)
• M3: 1,215,931 km (0.101 R)
• M4: 1,697,786 km (0.075 R)
• M5: 3,042,521 km (0.117 R)
• M6: 4,713,081 km (0.12 R)
• M7: 5,960,578 km (0.107 R)
• M8: 6,497,784 km (0.092 R)
• M9: 7,311,147 km (0.052 R)
• M10: 8,153,234 km (0.085 R)
• M11: 8,776,608 km (0.09 R)
• M12: 9,900,387 km (0.105 R)
• M13: 10,701,484 km (0.049 R)
• M14: 13,049,721 km (0.047 R)
• M15: 15,546,360 km (0.097 R)
• M16: 16,141,760 km (0.071 R)
• M17: 17,890,110 km (0.111 R)
• M18: 20,249,119 km (0.07 R)
• M19: 20,816,245 km (0.116 R)
• M20: 22,056,560 km (0.035 R)
• M21: 23,812,241 km (0.114 R)
• M22: 25,006,331 km (0.068 R)
• M23: 28,209,820 km (0.088 R)
• M24: 28,917,568 km (0.063 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765

Radius: 13.7

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.99 AU - 4.89 AU

Year: 5130 Days

Day: 14.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 31,944,638 km

• M1: 170,691 km (0.095 R)
• M2: 603,179 km (0.107 R)
• M3: 1,199,476 km (0.096 R)
• M4: 2,245,165 km (0.106 R)
• M5: 2,870,783 km (0.077 R)
• M6: 4,783,841 km (0.115 R)
• M7: 5,737,527 km (0.063 R)
• M8: 6,484,320 km (0.112 R)
• M9: 7,017,636 km (0.106 R)
• M10: 7,652,529 km (0.097 R)
• M11: 8,096,985 km (0.119 R)
• M12: 8,637,183 km (0.105 R)
• M13: 9,577,256 km (0.111 R)
• M14: 12,860,480 km (0.082 R)
• M15: 14,926,427 km (0.092 R)
• M16: 18,959,286 km (0.114 R)
• M17: 19,501,279 km (0.092 R)
• M18: 20,053,595 km (0.079 R)
• M19: 23,049,591 km (0.118 R)
• M20: 25,016,504 km (0.099 R)
• M21: 27,780,923 km (0.057 R)
• M22: 31,209,706 km (0.037 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524

Radius: 12.4

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 4.3 AU - 4.66 AU

Year: 6221 Days

Day: 8 Hours

Environment

Temp: -220 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 31,944,638 km

• M1: 154,235 km (0.083 R)
• M2: 700,118 km (0.064 R)
• M3: 1,092,214 km (0.083 R)
• M4: 1,600,697 km (0.112 R)
• M5: 2,281,667 km (0.094 R)
• M6: 3,986,634 km (0.038 R)
• M7: 4,887,063 km (0.108 R)
• M8: 5,918,541 km (0.093 R)
• M9: 6,650,224 km (0.039 R)
• M10: 7,159,156 km (0.053 R)
• M11: 7,804,371 km (0.097 R)
• M12: 8,684,755 km (0.092 R)
• M13: 10,327,639 km (0.112 R)
• M14: 12,168,889 km (0.092 R)
• M15: 16,309,160 km (0.057 R)
• M16: 17,174,434 km (0.076 R)
• M17: 18,070,076 km (0.057 R)
• M18: 19,403,143 km (0.039 R)
• M19: 19,815,584 km (0.067 R)
• M20: 20,587,061 km (0.036 R)
• M21: 22,115,203 km (0.072 R)
• M22: 25,973,332 km (0.027 R)
• M23: 27,153,061 km (0.11 R)
• M24: 29,710,287 km (0.057 R)
• M25: 31,375,909 km (0.095 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 521 - 20,464 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit