🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.91

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.41 AU - 0.65 AU

Year: 253 Days

Day: 24.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 33.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 82,547,544 km

• M1: 113,545 km (0.109 R)
• M2: 344,075 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.6

Radius: 14.6

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.63 AU - 0.79 AU

Year: 392 Days

Day: 12 Hours

Environment

Temp: -145 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 82,547,544 km

• M1: 181,612 km (0.053 R)
• M2: 648,058 km (0.047 R)
• M3: 1,594,414 km (0.066 R)
• M4: 2,695,454 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.4

Radius: 13.6

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.7 AU - 0.98 AU

Year: 505 Days

Day: 7.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 82,547,544 km

• M1: 174,730 km (0.115 R)
• M2: 625,469 km (0.103 R)
• M3: 1,182,122 km (0.06 R)
• M4: 2,038,421 km (0.07 R)
• M5: 2,473,302 km (0.107 R)
• M6: 3,084,708 km (0.084 R)
• M7: 4,655,635 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.5

Radius: 10.7

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.29 AU - 2.33 AU

Year: 2303 Days

Day: 6.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 159.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,547,544 km

• M1: 135,685 km (0.104 R)
• M2: 528,380 km (0.109 R)
• M3: 1,015,321 km (0.084 R)
• M4: 1,491,341 km (0.11 R)
• M5: 2,228,559 km (0.096 R)
• M6: 3,742,939 km (0.105 R)
• M7: 4,543,886 km (0.097 R)
• M8: 5,240,413 km (0.099 R)
• M9: 6,084,445 km (0.09 R)
• M10: 6,566,748 km (0.116 R)
• M11: 7,249,513 km (0.087 R)
• M12: 8,656,481 km (0.076 R)
• M13: 10,163,530 km (0.075 R)
• M14: 10,843,751 km (0.115 R)
• M15: 11,393,673 km (0.073 R)
• M16: 13,376,593 km (0.079 R)
• M17: 14,240,072 km (0.057 R)
• M18: 14,995,541 km (0.051 R)
• M19: 15,432,217 km (0.086 R)
• M20: 15,827,455 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.3

Radius: 13.7

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 3.24 AU - 4.24 AU

Year: 4745 Days

Day: 9.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,547,544 km

• M1: 170,392 km (0.052 R)
• M2: 616,194 km (0.088 R)
• M3: 1,205,011 km (0.109 R)
• M4: 2,269,250 km (0.119 R)
• M5: 3,095,030 km (0.114 R)
• M6: 4,113,193 km (0.078 R)
• M7: 4,840,090 km (0.12 R)
• M8: 6,333,226 km (0.106 R)
• M9: 6,774,839 km (0.113 R)
• M10: 7,614,831 km (0.073 R)
• M11: 9,221,213 km (0.108 R)
• M12: 12,400,915 km (0.088 R)
• M13: 13,297,904 km (0.107 R)
• M14: 16,721,601 km (0.05 R)
• M15: 17,754,574 km (0.084 R)
• M16: 22,099,345 km (0.099 R)
• M17: 23,120,351 km (0.088 R)
• M18: 23,868,639 km (0.041 R)
• M19: 24,401,956 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.6

Radius: 12.5

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 4.33 AU - 4.87 AU

Year: 6472 Days

Day: 14.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 82,547,544 km

• M1: 155,432 km (0.104 R)
• M2: 554,410 km (0.087 R)
• M3: 1,059,751 km (0.097 R)
• M4: 2,178,893 km (0.043 R)
• M5: 3,303,570 km (0.034 R)
• M6: 4,429,593 km (0.045 R)
• M7: 6,153,708 km (0.084 R)
• M8: 7,166,935 km (0.052 R)
• M9: 7,810,804 km (0.05 R)
• M10: 8,451,831 km (0.12 R)
• M11: 9,390,109 km (0.099 R)
• M12: 10,115,359 km (0.025 R)
• M13: 10,683,382 km (0.083 R)
• M14: 14,022,856 km (0.109 R)
• M15: 15,897,766 km (0.071 R)
• M16: 17,192,685 km (0.088 R)
• M17: 17,594,654 km (0.05 R)
• M18: 24,068,203 km (0.115 R)
• M19: 27,467,216 km (0.064 R)
• M20: 28,480,891 km (0.09 R)
• M21: 29,233,668 km (0.108 R)
• M22: 30,779,014 km (0.114 R)
• M23: 32,479,942 km (0.111 R)
• M24: 33,095,088 km (0.097 R)
• M25: 34,242,803 km (0.074 R)
• M26: 34,666,614 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 683.1

Radius: 6.7

Gravity: 15.22 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 7.48 AU - 8.46 AU

Year: 14760 Days

Day: 22.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 82,547,544 km

• M1: 91,105 km (0.063 R)
• M2: 309,817 km (0.072 R)
• M3: 586,723 km (0.079 R)
• M4: 1,198,279 km (0.065 R)
• M5: 1,674,898 km (0.092 R)
• M6: 1,912,459 km (0.119 R)
• M7: 2,271,045 km (0.088 R)
• M8: 2,696,202 km (0.104 R)
• M9: 4,387,706 km (0.061 R)
• M10: 4,944,210 km (0.11 R)
• M11: 7,557,385 km (0.114 R)
• M12: 8,700,612 km (0.027 R)
• M13: 8,952,535 km (0.086 R)
• M14: 9,737,774 km (0.052 R)
• M15: 10,342,150 km (0.091 R)
• M16: 12,816,498 km (0.082 R)
• M17: 13,341,437 km (0.086 R)
• M18: 14,787,899 km (0.089 R)
• M19: 19,405,985 km (0.087 R)
• M20: 20,717,061 km (0.034 R)
• M21: 23,611,930 km (0.101 R)
• M22: 36,568,003 km (0.09 R)
• M23: 42,333,355 km (0.1 R)
• M24: 43,790,139 km (0.045 R)
• M25: 44,829,545 km (0.07 R)
• M26: 46,649,553 km (0.026 R)
• M27: 48,834,430 km (0.052 R)
• M28: 49,470,969 km (0.034 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682.6

Radius: 4.9

Gravity: 28.43 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 8.43 AU - 12.77 AU

Year: 22640 Days

Day: 18.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 82,547,544 km

• M1: 61,784 km (0.083 R)
• M2: 238,010 km (0.042 R)
• M3: 534,064 km (0.097 R)
• M4: 781,948 km (0.119 R)
• M5: 1,038,658 km (0.098 R)
• M6: 1,444,816 km (0.077 R)
• M7: 2,052,034 km (0.077 R)
• M8: 3,189,875 km (0.1 R)
• M9: 3,537,242 km (0.035 R)
• M10: 7,728,824 km (0.077 R)
• M11: 8,408,148 km (0.086 R)
• M12: 9,240,361 km (0.107 R)
• M13: 10,004,956 km (0.112 R)
• M14: 11,726,229 km (0.109 R)
• M15: 14,938,395 km (0.077 R)
• M16: 16,322,175 km (0.096 R)
• M17: 16,830,209 km (0.047 R)
• M18: 18,508,997 km (0.104 R)
• M19: 19,719,842 km (0.084 R)
• M20: 27,991,706 km (0.099 R)
• M21: 30,085,628 km (0.079 R)
• M22: 30,593,064 km (0.102 R)
• M23: 35,419,689 km (0.103 R)
• M24: 37,572,253 km (0.111 R)
• M25: 39,205,114 km (0.094 R)
• M26: 39,507,002 km (0.078 R)
• M27: 44,060,313 km (0.044 R)
• M28: 45,044,068 km (0.104 R)
• M29: 46,885,618 km (0.064 R)
• M30: 49,652,880 km (0.084 R)
• M31: 55,320,545 km (0.089 R)
• M32: 56,465,118 km (0.101 R)
• M33: 57,625,399 km (0.053 R)
• M34: 63,458,070 km (0.042 R)
• M35: 63,874,252 km (0.064 R)
• M36: 65,769,657 km (0.085 R)
• M37: 66,195,861 km (0.085 R)
• M38: 76,044,936 km (0.1 R)
• M39: 78,651,230 km (0.028 R)
• M40: 80,827,430 km (0.119 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 228 - 11,986 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit