🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.4

Radius: 13.6

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.45 AU - 0.69 AU

Year: 297 Days

Day: 10.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 87,070,291 km

• M1: 169,195 km (0.034 R)
• M2: 815,907 km (0.05 R)
• M3: 1,308,832 km (0.064 R)
• M4: 1,829,432 km (0.103 R)
• M5: 2,926,882 km (0.107 R)
• M6: 3,567,311 km (0.107 R)
• M7: 4,225,990 km (0.054 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.9

Radius: 14.2

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.72 AU - 1.02 AU

Year: 560 Days

Day: 12.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 87,070,291 km

• M1: 176,825 km (0.102 R)
• M2: 700,118 km (0.113 R)
• M3: 1,253,481 km (0.118 R)
• M4: 1,869,973 km (0.08 R)
• M5: 2,335,522 km (0.05 R)
• M6: 2,932,118 km (0.093 R)
• M7: 3,436,413 km (0.069 R)
• M8: 3,881,466 km (0.118 R)
• M9: 5,960,877 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.1

Radius: 14.2

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.05 AU - 1.23 AU

Year: 840 Days

Day: 7.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 87,070,291 km

• M1: 176,675 km (0.114 R)
• M2: 642,672 km (0.106 R)
• M3: 1,153,400 km (0.045 R)
• M4: 1,622,539 km (0.092 R)
• M5: 2,231,701 km (0.078 R)
• M6: 3,473,363 km (0.053 R)
• M7: 4,186,796 km (0.077 R)
• M8: 4,843,231 km (0.086 R)
• M9: 5,888,920 km (0.075 R)
• M10: 6,715,299 km (0.077 R)
• M11: 7,802,875 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.5

Radius: 9.2

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 3 AU - 4.4 AU

Year: 4913 Days

Day: 8.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 87,070,291 km

• M1: 114,891 km (0.12 R)
• M2: 536,458 km (0.1 R)
• M3: 899,382 km (0.067 R)
• M4: 1,230,742 km (0.12 R)
• M5: 1,596,808 km (0.047 R)
• M6: 2,035,129 km (0.076 R)
• M7: 3,290,106 km (0.098 R)
• M8: 3,981,996 km (0.109 R)
• M9: 6,301,661 km (0.07 R)
• M10: 7,995,857 km (0.09 R)
• M11: 13,344,130 km (0.045 R)
• M12: 15,479,939 km (0.112 R)
• M13: 18,457,834 km (0.112 R)
• M14: 20,756,405 km (0.066 R)
• M15: 22,800,511 km (0.055 R)
• M16: 25,052,407 km (0.029 R)
• M17: 25,993,378 km (0.115 R)
• M18: 26,312,171 km (0.052 R)
• M19: 27,531,244 km (0.025 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.9

Radius: 12.2

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.66 AU - 3.84 AU

Year: 5013 Days

Day: 10.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 87,070,291 km

• M1: 151,842 km (0.11 R)
• M2: 604,076 km (0.116 R)
• M3: 1,178,382 km (0.079 R)
• M4: 1,684,173 km (0.119 R)
• M5: 2,625,443 km (0.118 R)
• M6: 4,435,128 km (0.09 R)
• M7: 5,705,663 km (0.109 R)
• M8: 9,458,924 km (0.104 R)
• M9: 14,856,265 km (0.116 R)
• M10: 15,412,021 km (0.062 R)
• M11: 17,328,520 km (0.12 R)
• M12: 18,984,269 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.5

Radius: 13.7

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.29 AU - 5.49 AU

Year: 7464 Days

Day: 12.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 87,070,291 km

• M1: 183,557 km (0.03 R)
• M2: 651,499 km (0.07 R)
• M3: 1,201,121 km (0.067 R)
• M4: 3,184,041 km (0.108 R)
• M5: 3,725,735 km (0.079 R)
• M6: 4,353,148 km (0.084 R)
• M7: 9,969,501 km (0.106 R)
• M8: 12,194,470 km (0.091 R)
• M9: 14,846,093 km (0.049 R)
• M10: 19,786,114 km (0.115 R)
• M11: 20,340,523 km (0.072 R)
• M12: 20,976,613 km (0.097 R)
• M13: 21,699,022 km (0.088 R)
• M14: 27,829,093 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 960.3

Radius: 4.6

Gravity: 45.38 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 6.72 AU - 8.72 AU

Year: 14806 Days

Day: 15.1 Hours

Environment

Temp: -240 °C

Axial Tilt: 93.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 87,070,291 km

• M1: 59,690 km (0.049 R)
• M2: 296,952 km (0.12 R)
• M3: 456,573 km (0.119 R)
• M4: 622,626 km (0.089 R)
• M5: 937,979 km (0.08 R)
• M6: 1,281,007 km (0.051 R)
• M7: 1,956,142 km (0.065 R)
• M8: 2,111,574 km (0.086 R)
• M9: 2,317,570 km (0.117 R)
• M10: 2,675,109 km (0.06 R)
• M11: 2,991,808 km (0.118 R)
• M12: 3,612,938 km (0.092 R)
• M13: 4,283,735 km (0.096 R)
• M14: 5,440,276 km (0.102 R)
• M15: 5,749,345 km (0.053 R)
• M16: 6,276,379 km (0.109 R)
• M17: 8,001,093 km (0.099 R)
• M18: 8,866,067 km (0.083 R)
• M19: 10,482,622 km (0.109 R)
• M20: 12,220,201 km (0.116 R)
• M21: 13,157,133 km (0.056 R)
• M22: 14,141,038 km (0.109 R)
• M23: 20,258,544 km (0.049 R)
• M24: 20,719,754 km (0.039 R)
• M25: 21,663,118 km (0.12 R)
• M26: 22,048,333 km (0.115 R)
• M27: 22,733,491 km (0.045 R)
• M28: 22,931,858 km (0.045 R)
• M29: 27,931,867 km (0.096 R)
• M30: 30,987,254 km (0.063 R)
• M31: 31,353,470 km (0.117 R)
• M32: 36,925,392 km (0.036 R)
• M33: 41,328,207 km (0.03 R)
• M34: 42,518,707 km (0.118 R)
• M35: 44,192,557 km (0.106 R)
• M36: 45,437,212 km (0.106 R)
• M37: 49,477,102 km (0.098 R)
• M38: 58,633,689 km (0.109 R)
• M39: 59,381,379 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.8

Radius: 3.6

Gravity: 22.9 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 9.71 AU - 9.99 AU

Year: 21339 Days

Day: 23.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 87,070,291 km

• M1: 48,619 km (0.08 R)
• M2: 165,006 km (0.104 R)
• M3: 355,744 km (0.081 R)
• M4: 532,568 km (0.091 R)
• M5: 1,420,881 km (0.1 R)
• M6: 1,699,432 km (0.103 R)
• M7: 1,834,369 km (0.062 R)
• M8: 2,554,683 km (0.09 R)
• M9: 2,732,405 km (0.036 R)
• M10: 3,580,924 km (0.076 R)
• M11: 4,005,932 km (0.051 R)
• M12: 4,721,758 km (0.071 R)
• M13: 5,853,914 km (0.09 R)
• M14: 6,940,593 km (0.11 R)
• M15: 8,202,451 km (0.081 R)
• M16: 10,937,250 km (0.061 R)
• M17: 14,292,581 km (0.101 R)
• M18: 16,164,499 km (0.032 R)
• M19: 16,314,845 km (0.096 R)
• M20: 21,454,728 km (0.039 R)
• M21: 24,486,479 km (0.09 R)
• M22: 24,884,559 km (0.075 R)
• M23: 25,795,610 km (0.071 R)
• M24: 33,654,135 km (0.067 R)
• M25: 38,790,129 km (0.07 R)
• M26: 40,843,360 km (0.118 R)
• M27: 40,982,785 km (0.081 R)
• M28: 42,394,241 km (0.064 R)
• M29: 51,549,781 km (0.092 R)
• M30: 54,533,211 km (0.05 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 779.5

Radius: 4.4

Gravity: 40.26 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 8.81 AU - 11.87 AU

Year: 22950 Days

Day: 24.9 Hours

Environment

Temp: -239 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 87,070,291 km

• M1: 57,595 km (0.054 R)
• M2: 360,232 km (0.107 R)
• M3: 1,213,089 km (0.08 R)
• M4: 1,619,696 km (0.101 R)
• M5: 2,243,519 km (0.112 R)
• M6: 2,697,549 km (0.117 R)
• M7: 3,355,480 km (0.096 R)
• M8: 3,721,845 km (0.117 R)
• M9: 4,355,991 km (0.114 R)
• M10: 4,943,462 km (0.116 R)
• M11: 5,256,271 km (0.035 R)
• M12: 5,417,537 km (0.047 R)
• M13: 5,964,617 km (0.044 R)
• M14: 9,146,713 km (0.078 R)
• M15: 9,798,810 km (0.068 R)
• M16: 10,672,761 km (0.117 R)
• M17: 12,219,304 km (0.094 R)
• M18: 13,756,571 km (0.077 R)
• M19: 17,744,701 km (0.087 R)
• M20: 20,295,345 km (0.1 R)
• M21: 22,546,045 km (0.077 R)
• M22: 24,172,622 km (0.072 R)
• M23: 25,644,217 km (0.096 R)
• M24: 26,460,871 km (0.047 R)
• M25: 30,286,388 km (0.085 R)
• M26: 31,198,486 km (0.069 R)
• M27: 33,077,436 km (0.101 R)
• M28: 35,602,199 km (0.101 R)
• M29: 45,956,615 km (0.105 R)
• M30: 47,507,646 km (0.118 R)
• M31: 48,737,789 km (0.112 R)
• M32: 50,169,591 km (0.082 R)
• M33: 52,369,427 km (0.081 R)
• M34: 56,177,441 km (0.035 R)
• M35: 62,020,435 km (0.053 R)
• M36: 70,272,253 km (0.088 R)
• M37: 71,868,163 km (0.084 R)
• M38: 77,522,664 km (0.058 R)
• M39: 78,736,950 km (0.21 R)
• M40: 81,702,578 km (0.067 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 18,527 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit