🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.9

Radius: 8.3

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.69 AU - 0.83 AU

Year: 435 Days

Day: 12.3 Hours

Environment

Temp: -133 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 32,186,881 km

• M1: 103,223 km (0.042 R)
• M2: 520,152 km (0.093 R)
• M3: 792,869 km (0.117 R)
• M4: 1,105,678 km (0.096 R)
• M5: 1,380,340 km (0.095 R)
• M6: 1,775,428 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.5

Radius: 14.4

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.78 AU - 1.3 AU

Year: 696 Days

Day: 7.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 92.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,186,881 km

• M1: 181,163 km (0.091 R)
• M2: 651,200 km (0.054 R)
• M3: 1,199,177 km (0.092 R)
• M4: 1,873,713 km (0.084 R)
• M5: 2,361,552 km (0.109 R)
• M6: 3,192,568 km (0.092 R)
• M7: 5,167,559 km (0.041 R)
• M8: 6,304,653 km (0.093 R)
• M9: 7,195,658 km (0.059 R)
• M10: 7,882,312 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.7

Radius: 12.4

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.24 AU - 1.58 AU

Year: 1098 Days

Day: 6.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,186,881 km

• M1: 154,235 km (0.098 R)
• M2: 574,905 km (0.096 R)
• M3: 1,036,414 km (0.049 R)
• M4: 2,604,050 km (0.067 R)
• M5: 3,295,791 km (0.077 R)
• M6: 3,947,738 km (0.092 R)
• M7: 4,596,245 km (0.098 R)
• M8: 5,828,931 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 360.3

Radius: 8.8

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.28 AU - 1.84 AU

Year: 1278 Days

Day: 10.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,186,881 km

• M1: 109,506 km (0.091 R)
• M2: 410,048 km (0.117 R)
• M3: 730,786 km (0.049 R)
• M4: 1,017,864 km (0.096 R)
• M5: 1,374,655 km (0.088 R)
• M6: 1,814,473 km (0.09 R)
• M7: 2,185,625 km (0.099 R)
• M8: 2,468,365 km (0.085 R)
• M9: 2,964,581 km (0.106 R)
• M10: 3,554,894 km (0.097 R)
• M11: 4,271,169 km (0.1 R)
• M12: 4,823,783 km (0.115 R)
• M13: 6,436,598 km (0.116 R)
• M14: 6,907,682 km (0.088 R)
• M15: 7,843,267 km (0.107 R)
• M16: 8,224,741 km (0.047 R)
• M17: 8,888,208 km (0.027 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.9

Radius: 8.6

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.73 AU - 2.25 AU

Year: 1842 Days

Day: 14.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,186,881 km

• M1: 107,112 km (0.115 R)
• M2: 427,700 km (0.083 R)
• M3: 753,674 km (0.101 R)
• M4: 1,025,344 km (0.081 R)
• M5: 1,479,074 km (0.104 R)
• M6: 1,865,635 km (0.094 R)
• M7: 2,272,541 km (0.116 R)
• M8: 2,897,412 km (0.116 R)
• M9: 3,476,056 km (0.075 R)
• M10: 4,129,649 km (0.098 R)
• M11: 4,467,740 km (0.089 R)
• M12: 4,766,637 km (0.092 R)
• M13: 5,301,449 km (0.094 R)
• M14: 5,744,708 km (0.118 R)
• M15: 6,467,415 km (0.069 R)
• M16: 7,480,342 km (0.12 R)
• M17: 8,425,651 km (0.062 R)
• M18: 10,617,709 km (0.045 R)
• M19: 11,357,022 km (0.11 R)
• M20: 11,880,464 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.4

Radius: 12.8

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 2.4 AU - 3 AU

Year: 2910 Days

Day: 11.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,186,881 km

• M1: 159,172 km (0.074 R)
• M2: 571,613 km (0.088 R)
• M3: 1,489,546 km (0.075 R)
• M4: 1,907,971 km (0.115 R)
• M5: 3,196,159 km (0.091 R)
• M6: 4,116,634 km (0.066 R)
• M7: 5,661,681 km (0.099 R)
• M8: 7,007,912 km (0.086 R)
• M9: 7,456,107 km (0.1 R)
• M10: 8,766,136 km (0.118 R)
• M11: 9,861,641 km (0.067 R)
• M12: 10,358,157 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.6

Radius: 8.3

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 2.91 AU - 3.21 AU

Year: 3511 Days

Day: 9.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 32,186,881 km

• M1: 107,561 km (0.058 R)
• M2: 385,065 km (0.057 R)
• M3: 714,031 km (0.112 R)
• M4: 1,287,888 km (0.051 R)
• M5: 1,801,607 km (0.108 R)
• M6: 2,164,532 km (0.093 R)
• M7: 3,571,500 km (0.077 R)
• M8: 4,239,903 km (0.063 R)
• M9: 5,200,321 km (0.076 R)
• M10: 5,573,119 km (0.113 R)
• M11: 6,571,236 km (0.039 R)
• M12: 6,929,074 km (0.07 R)
• M13: 9,010,130 km (0.114 R)
• M14: 9,452,192 km (0.101 R)
• M15: 13,363,877 km (0.11 R)
• M16: 14,022,556 km (0.066 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905

Radius: 11.7

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.76 AU - 4.02 AU

Year: 4095 Days

Day: 7.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,186,881 km

• M1: 146,905 km (0.086 R)
• M2: 580,290 km (0.111 R)
• M3: 1,099,993 km (0.094 R)
• M4: 2,376,362 km (0.117 R)
• M5: 3,561,177 km (0.1 R)
• M6: 4,689,295 km (0.12 R)
• M7: 7,292,447 km (0.091 R)
• M8: 7,781,184 km (0.064 R)
• M9: 8,441,509 km (0.099 R)
• M10: 9,583,838 km (0.107 R)
• M11: 11,510,060 km (0.104 R)
• M12: 13,216,972 km (0.082 R)
• M13: 13,786,790 km (0.111 R)
• M14: 14,975,345 km (0.115 R)
• M15: 17,005,538 km (0.096 R)
• M16: 18,951,657 km (0.069 R)
• M17: 20,215,310 km (0.069 R)
• M18: 21,041,838 km (0.116 R)
• M19: 22,910,016 km (0.056 R)
• M20: 23,281,468 km (0.114 R)
• M21: 23,657,108 km (0.045 R)
• M22: 26,727,006 km (0.095 R)
• M23: 28,229,717 km (0.059 R)
• M24: 28,656,968 km (0.112 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.3

Radius: 10.5

Gravity: 8.03 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 3.64 AU - 3.94 AU

Year: 4840 Days

Day: 11.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,186,881 km

• M1: 131,497 km (0.093 R)
• M2: 515,514 km (0.107 R)
• M3: 1,335,759 km (0.118 R)
• M4: 1,689,409 km (0.074 R)
• M5: 2,136,407 km (0.052 R)
• M6: 3,130,335 km (0.079 R)
• M7: 5,206,455 km (0.107 R)
• M8: 6,224,767 km (0.096 R)
• M9: 6,985,772 km (0.102 R)
• M10: 11,749,866 km (0.095 R)
• M11: 15,284,564 km (0.052 R)
• M12: 18,065,289 km (0.092 R)
• M13: 22,577,311 km (0.07 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 498 - 13,984 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit