🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.51 AU - 0.67 AU

Year: 297 Days

Day: 37.2 Hours

Environment

Temp: -132 °C

Axial Tilt: 2.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537.3

Radius: 9.3

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.68 AU - 1 AU

Year: 505 Days

Day: 11.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,563,096 km

• M1: 115,639 km (0.09 R)
• M2: 307,573 km (0.111 R)
• M3: 500,854 km (0.035 R)
• M4: 883,375 km (0.086 R)
• M5: 1,073,066 km (0.041 R)
• M6: 1,288,786 km (0.096 R)
• M7: 1,463,516 km (0.11 R)
• M8: 1,705,266 km (0.102 R)
• M9: 2,129,226 km (0.093 R)
• M10: 2,649,528 km (0.062 R)
• M11: 2,895,467 km (0.084 R)
• M12: 4,128,303 km (0.107 R)
• M13: 4,640,975 km (0.078 R)
• M14: 4,914,290 km (0.116 R)
• M15: 5,643,879 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.3

Radius: 11.8

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.11 AU - 2.19 AU

Year: 2068 Days

Day: 14 Hours

Environment

Temp: -199 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,563,096 km

• M1: 151,393 km (0.092 R)
• M2: 381,923 km (0.04 R)
• M3: 694,433 km (0.077 R)
• M4: 1,022,352 km (0.113 R)
• M5: 1,379,143 km (0.111 R)
• M6: 1,731,895 km (0.057 R)
• M7: 1,953,299 km (0.114 R)
• M8: 2,401,195 km (0.081 R)
• M9: 2,759,183 km (0.104 R)
• M10: 2,983,879 km (0.051 R)
• M11: 3,697,162 km (0.094 R)
• M12: 4,041,835 km (0.086 R)
• M13: 4,633,495 km (0.068 R)
• M14: 5,152,300 km (0.082 R)
• M15: 5,540,208 km (0.037 R)
• M16: 6,024,755 km (0.088 R)
• M17: 6,508,704 km (0.093 R)
• M18: 6,900,800 km (0.077 R)
• M19: 7,813,946 km (0.039 R)
• M20: 8,268,125 km (0.118 R)
• M21: 9,761,411 km (0.059 R)
• M22: 13,372,254 km (0.083 R)
• M23: 14,671,063 km (0.074 R)
• M24: 17,169,198 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.2

Radius: 14.2

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.83 AU - 2.89 AU

Year: 3173 Days

Day: 9 Hours

Environment

Temp: -191 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 51,563,096 km

• M1: 177,124 km (0.084 R)
• M2: 491,579 km (0.055 R)
• M3: 881,281 km (0.093 R)
• M4: 1,233,584 km (0.107 R)
• M5: 1,600,248 km (0.118 R)
• M6: 2,008,651 km (0.089 R)
• M7: 2,497,088 km (0.078 R)
• M8: 3,238,046 km (0.12 R)
• M9: 3,594,538 km (0.106 R)
• M10: 4,404,760 km (0.069 R)
• M11: 4,862,679 km (0.116 R)
• M12: 5,237,421 km (0.092 R)
• M13: 5,916,596 km (0.117 R)
• M14: 6,283,859 km (0.04 R)
• M15: 6,638,555 km (0.115 R)
• M16: 7,971,771 km (0.043 R)
• M17: 8,237,457 km (0.043 R)
• M18: 9,004,745 km (0.1 R)
• M19: 10,797,077 km (0.081 R)
• M20: 11,200,393 km (0.044 R)
• M21: 13,605,178 km (0.076 R)
• M22: 15,059,718 km (0.047 R)
• M23: 16,474,615 km (0.11 R)
• M24: 19,372,924 km (0.067 R)
• M25: 20,123,906 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.8

Radius: 9.5

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.71 AU - 3.31 AU

Year: 3426 Days

Day: 12.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,563,096 km

• M1: 118,182 km (0.037 R)
• M2: 435,779 km (0.098 R)
• M3: 623,524 km (0.05 R)
• M4: 842,086 km (0.11 R)
• M5: 1,306,737 km (0.111 R)
• M6: 1,613,413 km (0.098 R)
• M7: 1,856,809 km (0.099 R)
• M8: 2,097,661 km (0.052 R)
• M9: 2,545,408 km (0.086 R)
• M10: 4,541,193 km (0.078 R)
• M11: 4,985,499 km (0.029 R)
• M12: 6,207,863 km (0.065 R)
• M13: 6,409,371 km (0.101 R)
• M14: 6,633,020 km (0.116 R)
• M15: 6,860,708 km (0.116 R)
• M16: 7,587,006 km (0.109 R)
• M17: 11,550,302 km (0.098 R)
• M18: 12,961,160 km (0.025 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.7

Radius: 12.7

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 4.35 AU - 4.75 AU

Year: 6367 Days

Day: 5.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,563,096 km

• M1: 315,352 km (0.036 R)
• M2: 1,046,138 km (0.086 R)
• M3: 1,736,831 km (0.094 R)
• M4: 3,648,542 km (0.083 R)
• M5: 3,964,194 km (0.032 R)
• M6: 4,406,405 km (0.093 R)
• M7: 5,515,823 km (0.062 R)
• M8: 6,038,219 km (0.098 R)
• M9: 7,781,782 km (0.099 R)
• M10: 8,182,555 km (0.066 R)
• M11: 10,340,354 km (0.09 R)
• M12: 13,388,710 km (0.06 R)
• M13: 17,933,344 km (0.105 R)
• M14: 22,258,069 km (0.079 R)
• M15: 23,679,249 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 971.9

Radius: 6.7

Gravity: 21.65 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 5.78 AU - 6.12 AU

Year: 9521 Days

Day: 16.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 51,563,096 km

• M1: 83,326 km (0.034 R)
• M2: 635,492 km (0.073 R)
• M3: 1,285,794 km (0.059 R)
• M4: 1,622,987 km (0.093 R)
• M5: 1,883,886 km (0.049 R)
• M6: 2,165,130 km (0.093 R)
• M7: 2,556,628 km (0.075 R)
• M8: 2,788,804 km (0.094 R)
• M9: 3,310,152 km (0.079 R)
• M10: 4,370,203 km (0.042 R)
• M11: 4,612,402 km (0.113 R)
• M12: 5,958,932 km (0.09 R)
• M13: 6,206,217 km (0.096 R)
• M14: 6,349,981 km (0.039 R)
• M15: 6,828,245 km (0.077 R)
• M16: 7,918,215 km (0.04 R)
• M17: 9,046,632 km (0.115 R)
• M18: 9,976,682 km (0.091 R)
• M19: 10,952,659 km (0.097 R)
• M20: 11,482,235 km (0.066 R)
• M21: 11,677,909 km (0.114 R)
• M22: 13,042,391 km (0.087 R)
• M23: 13,303,439 km (0.07 R)
• M24: 14,155,998 km (0.096 R)
• M25: 16,114,234 km (0.065 R)
• M26: 19,132,820 km (0.105 R)
• M27: 22,891,317 km (0.119 R)
• M28: 23,098,510 km (0.103 R)
• M29: 27,590,186 km (0.102 R)
• M30: 28,046,160 km (0.072 R)
• M31: 28,737,003 km (0.083 R)
• M32: 29,985,996 km (0.096 R)
• M33: 30,144,121 km (0.12 R)
• M34: 37,773,762 km (0.108 R)
• M35: 40,478,042 km (0.117 R)
• M36: 41,958,612 km (0.061 R)
• M37: 44,613,675 km (0.116 R)
• M38: 46,954,433 km (0.068 R)
• M39: 48,247,258 km (0.044 R)
• M40: 49,557,885 km (0.118 R)
• M41: 50,475,369 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25.9

Radius: 5.6

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 5.68 AU - 7.26 AU

Year: 10796 Days

Day: 24.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,563,096 km

• M1: 147,653 km (0.105 R)
• M2: 806,183 km (0.117 R)
• M3: 1,497,475 km (0.117 R)
• M4: 4,268,177 km (0.116 R)
• M5: 4,420,916 km (0.079 R)
• M6: 5,998,875 km (0.097 R)
• M7: 6,180,187 km (0.077 R)
• M8: 7,981,346 km (0.086 R)
• M9: 9,834,414 km (0.105 R)
• M10: 10,328,087 km (0.077 R)
• M11: 11,132,326 km (0.116 R)
• M12: 11,241,831 km (0.054 R)
• M13: 11,685,389 km (0.117 R)
• M14: 11,825,712 km (0.118 R)
• M15: 13,666,663 km (0.11 R)
• M16: 16,628,851 km (0.057 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 718.2

Radius: 6.2

Gravity: 18.68 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.64 AU - 7.38 AU

Year: 10896 Days

Day: 20.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (45)

Outer Limit: 51,563,096 km

• M1: 77,641 km (0.116 R)
• M2: 322,234 km (0.116 R)
• M3: 541,694 km (0.111 R)
• M4: 781,948 km (0.049 R)
• M5: 1,220,120 km (0.071 R)
• M6: 1,461,870 km (0.06 R)
• M7: 3,638,370 km (0.081 R)
• M8: 3,914,378 km (0.055 R)
• M9: 6,205,170 km (0.067 R)
• M10: 7,590,147 km (0.11 R)
• M11: 9,596,853 km (0.069 R)
• M12: 9,999,570 km (0.118 R)
• M13: 13,521,104 km (0.105 R)
• M14: 13,785,593 km (0.033 R)
• M15: 14,267,897 km (0.101 R)
• M16: 14,484,963 km (0.079 R)
• M17: 14,648,923 km (0.115 R)
• M18: 16,396,525 km (0.09 R)
• M19: 18,243,161 km (0.101 R)
• M20: 18,673,853 km (0.108 R)
• M21: 18,984,568 km (0.053 R)
• M22: 19,234,995 km (0.107 R)
• M23: 23,535,335 km (0.092 R)
• M24: 23,954,359 km (0.099 R)
• M25: 24,874,685 km (0.068 R)
• M26: 25,017,701 km (0.079 R)
• M27: 25,233,271 km (0.072 R)
• M28: 26,915,948 km (0.114 R)
• M29: 29,503,243 km (0.068 R)
• M30: 29,737,214 km (0.073 R)
• M31: 30,129,310 km (0.085 R)
• M32: 31,080,753 km (0.113 R)
• M33: 32,454,061 km (0.089 R)
• M34: 34,024,091 km (0.061 R)
• M35: 35,289,839 km (0.059 R)
• M36: 35,974,398 km (0.093 R)
• M37: 39,316,116 km (0.072 R)
• M38: 39,947,867 km (0.117 R)
• M39: 40,402,196 km (0.112 R)
• M40: 41,595,688 km (0.078 R)
• M41: 44,034,582 km (0.093 R)
• M42: 44,225,170 km (0.113 R)
• M43: 44,416,057 km (0.093 R)
• M44: 47,033,571 km (0.102 R)
• M45: 47,625,529 km (0.113 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 334 - 13,469 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit