🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.56 AU - 0.68 AU

Year: 315 Days

Day: 14.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,658,304 km

• M1: 160,070 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.2

Radius: 11.9

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.75 AU - 0.93 AU

Year: 497 Days

Day: 8.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,658,304 km

• M1: 147,952 km (0.119 R)
• M2: 543,190 km (0.112 R)
• M3: 921,074 km (0.095 R)
• M4: 1,369,419 km (0.098 R)
• M5: 1,776,026 km (0.112 R)
• M6: 2,364,694 km (0.091 R)
• M7: 2,757,388 km (0.11 R)
• M8: 3,274,997 km (0.057 R)
• M9: 3,663,951 km (0.085 R)
• M10: 4,348,212 km (0.11 R)
• M11: 5,457,779 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.4

Radius: 8.6

Gravity: 13.4 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.96 AU - 1.12 AU

Year: 685 Days

Day: 14 Hours

Environment

Temp: -171 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,658,304 km

• M1: 106,962 km (0.115 R)
• M2: 381,923 km (0.077 R)
• M3: 655,538 km (0.06 R)
• M4: 929,601 km (0.116 R)
• M5: 1,241,513 km (0.033 R)
• M6: 1,673,551 km (0.043 R)
• M7: 1,967,661 km (0.06 R)
• M8: 2,951,865 km (0.115 R)
• M9: 3,289,807 km (0.119 R)
• M10: 3,890,442 km (0.078 R)
• M11: 4,249,328 km (0.108 R)
• M12: 5,328,227 km (0.097 R)
• M13: 5,732,142 km (0.093 R)
• M14: 6,135,757 km (0.07 R)
• M15: 6,472,053 km (0.11 R)
• M16: 6,932,365 km (0.036 R)
• M17: 7,461,194 km (0.119 R)
• M18: 8,317,492 km (0.098 R)
• M19: 8,730,083 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990

Radius: 14.4

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.92 AU - 1.52 AU

Year: 870 Days

Day: 13.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,658,304 km

• M1: 179,069 km (0.106 R)
• M2: 671,246 km (0.102 R)
• M3: 1,132,456 km (0.086 R)
• M4: 1,736,682 km (0.118 R)
• M5: 2,612,577 km (0.058 R)
• M6: 3,078,874 km (0.116 R)
• M7: 5,030,079 km (0.095 R)
• M8: 5,575,961 km (0.077 R)
• M9: 6,672,364 km (0.06 R)
• M10: 7,805,867 km (0.101 R)
• M11: 8,896,436 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281

Radius: 11.6

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.47 AU - 2.03 AU

Year: 1495 Days

Day: 14.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,658,304 km

• M1: 144,212 km (0.108 R)
• M2: 641,027 km (0.102 R)
• M3: 1,144,723 km (0.064 R)
• M4: 1,632,861 km (0.046 R)
• M5: 2,004,312 km (0.116 R)
• M6: 2,523,417 km (0.044 R)
• M7: 3,012,602 km (0.084 R)
• M8: 4,038,095 km (0.117 R)
• M9: 4,658,029 km (0.103 R)
• M10: 5,777,021 km (0.109 R)
• M11: 6,722,480 km (0.056 R)
• M12: 7,208,673 km (0.11 R)
• M13: 8,251,819 km (0.114 R)
• M14: 9,708,453 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 578.9

Radius: 12

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.61 AU - 3.25 AU

Year: 3238 Days

Day: 6 Hours

Environment

Temp: -203 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 73,658,304 km

• M1: 149,299 km (0.119 R)
• M2: 544,087 km (0.116 R)
• M3: 1,155,943 km (0.071 R)
• M4: 1,590,525 km (0.037 R)
• M5: 2,310,539 km (0.076 R)
• M6: 3,699,256 km (0.085 R)
• M7: 4,552,114 km (0.118 R)
• M8: 5,790,934 km (0.097 R)
• M9: 7,585,210 km (0.099 R)
• M10: 8,136,179 km (0.087 R)
• M11: 8,713,777 km (0.098 R)
• M12: 9,575,610 km (0.1 R)
• M13: 12,907,753 km (0.096 R)
• M14: 14,908,774 km (0.071 R)
• M15: 17,944,564 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.7

Radius: 10.7

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.77 AU - 3.15 AU

Year: 3288 Days

Day: 14.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,658,304 km

• M1: 133,441 km (0.069 R)
• M2: 489,783 km (0.08 R)
• M3: 1,379,143 km (0.09 R)
• M4: 1,753,736 km (0.112 R)
• M5: 2,196,546 km (0.096 R)
• M6: 3,215,457 km (0.097 R)
• M7: 3,674,572 km (0.096 R)
• M8: 4,047,370 km (0.09 R)
• M9: 5,706,411 km (0.07 R)
• M10: 6,636,311 km (0.076 R)
• M11: 7,523,127 km (0.118 R)
• M12: 7,893,532 km (0.111 R)
• M13: 9,400,730 km (0.085 R)
• M14: 9,931,952 km (0.092 R)
• M15: 11,127,838 km (0.077 R)
• M16: 12,105,011 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 303.2

Radius: 7.2

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 6.76 AU - 7.94 AU

Year: 12866 Days

Day: 15.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 73,658,304 km

• M1: 89,908 km (0.058 R)
• M2: 663,616 km (0.077 R)
• M3: 929,003 km (0.039 R)
• M4: 1,437,336 km (0.079 R)
• M5: 2,273,888 km (0.074 R)
• M6: 2,569,643 km (0.072 R)
• M7: 3,787,968 km (0.097 R)
• M8: 5,100,988 km (0.118 R)
• M9: 6,118,104 km (0.025 R)
• M10: 8,856,344 km (0.047 R)
• M11: 10,120,296 km (0.087 R)
• M12: 10,466,765 km (0.113 R)
• M13: 14,691,408 km (0.115 R)
• M14: 19,700,095 km (0.111 R)
• M15: 21,512,772 km (0.079 R)
• M16: 23,006,956 km (0.081 R)
• M17: 24,835,939 km (0.066 R)
• M18: 26,385,923 km (0.107 R)
• M19: 26,666,120 km (0.11 R)
• M20: 27,518,229 km (0.086 R)
• M21: 29,879,332 km (0.088 R)
• M22: 34,664,071 km (0.088 R)
• M23: 38,600,888 km (0.07 R)
• M24: 38,961,868 km (0.079 R)
• M25: 40,925,639 km (0.103 R)
• M26: 42,313,309 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 146.6

Radius: 7.7

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 6.71 AU - 9.17 AU

Year: 14446 Days

Day: 22.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 73,658,304 km

• M1: 97,987 km (0.114 R)
• M2: 350,358 km (0.104 R)
• M3: 783,594 km (0.068 R)
• M4: 1,033,871 km (0.11 R)
• M5: 3,208,725 km (0.049 R)
• M6: 3,537,990 km (0.106 R)
• M7: 3,914,079 km (0.071 R)
• M8: 4,421,365 km (0.03 R)
• M9: 5,323,440 km (0.057 R)
• M10: 5,723,166 km (0.103 R)
• M11: 8,554,605 km (0.104 R)
• M12: 11,893,031 km (0.116 R)
• M13: 15,145,438 km (0.046 R)
• M14: 15,450,917 km (0.085 R)
• M15: 16,456,065 km (0.082 R)
• M16: 16,974,721 km (0.078 R)
• M17: 17,571,168 km (0.075 R)
• M18: 19,516,389 km (0.03 R)
• M19: 25,254,664 km (0.085 R)
• M20: 29,489,630 km (0.056 R)
• M21: 30,935,044 km (0.114 R)
• M22: 34,384,921 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 930.9

Radius: 5.9

Gravity: 26.74 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 8 AU - 9.24 AU

Year: 16341 Days

Day: 23.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 73,658,304 km

• M1: 73,453 km (0.095 R)
• M2: 374,743 km (0.09 R)
• M3: 1,489,845 km (0.097 R)
• M4: 2,020,768 km (0.112 R)
• M5: 2,599,413 km (0.054 R)
• M6: 2,965,628 km (0.078 R)
• M7: 4,047,670 km (0.107 R)
• M8: 4,997,915 km (0.103 R)
• M9: 5,332,715 km (0.086 R)
• M10: 7,811,103 km (0.072 R)
• M11: 9,606,577 km (0.075 R)
• M12: 12,116,829 km (0.07 R)
• M13: 14,062,499 km (0.098 R)
• M14: 20,657,072 km (0.104 R)
• M15: 20,846,463 km (0.088 R)
• M16: 22,007,343 km (0.07 R)
• M17: 22,603,789 km (0.067 R)
• M18: 24,775,951 km (0.109 R)
• M19: 25,967,647 km (0.112 R)
• M20: 27,999,037 km (0.08 R)
• M21: 31,241,421 km (0.119 R)
• M22: 31,616,313 km (0.098 R)
• M23: 36,078,818 km (0.107 R)
• M24: 37,186,590 km (0.04 R)
• M25: 44,945,483 km (0.114 R)
• M26: 46,714,478 km (0.086 R)
• M27: 51,079,146 km (0.119 R)
• M28: 53,538,236 km (0.084 R)
• M29: 55,342,236 km (0.107 R)
• M30: 69,330,984 km (0.073 R)
• M31: 71,689,394 km (0.113 R)
• M32: 72,560,054 km (0.092 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: 539 - 20,083 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit