🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.4

Radius: 9.4

Gravity: 10.65 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.64 AU - 1.06 AU

Year: 532 Days

Day: 13.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,583,072 km

• M1: 116,986 km (0.058 R)
• M2: 454,329 km (0.063 R)
• M3: 952,639 km (0.112 R)
• M4: 1,330,823 km (0.114 R)
• M5: 1,703,022 km (0.08 R)
• M6: 2,007,005 km (0.096 R)
• M7: 2,408,077 km (0.084 R)
• M8: 3,025,916 km (0.112 R)
• M9: 3,555,941 km (0.09 R)
• M10: 3,900,016 km (0.11 R)
• M11: 4,311,859 km (0.116 R)
• M12: 5,102,634 km (0.09 R)
• M13: 5,632,659 km (0.119 R)
• M14: 6,101,948 km (0.09 R)
• M15: 6,991,157 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.7

Radius: 11.8

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.59 AU - 2.05 AU

Year: 1665 Days

Day: 10.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,583,072 km

• M1: 146,905 km (0.09 R)
• M2: 513,869 km (0.089 R)
• M3: 880,982 km (0.117 R)
• M4: 1,290,730 km (0.118 R)
• M5: 1,703,172 km (0.086 R)
• M6: 2,644,292 km (0.098 R)
• M7: 3,735,908 km (0.116 R)
• M8: 4,130,547 km (0.105 R)
• M9: 4,804,635 km (0.112 R)
• M10: 5,399,885 km (0.06 R)
• M11: 5,861,095 km (0.053 R)
• M12: 6,788,003 km (0.098 R)
• M13: 7,352,586 km (0.099 R)
• M14: 7,755,303 km (0.043 R)
• M15: 9,516,220 km (0.068 R)
• M16: 9,898,143 km (0.108 R)
• M17: 10,692,957 km (0.091 R)
• M18: 11,281,175 km (0.075 R)
• M19: 12,222,744 km (0.051 R)
• M20: 13,176,730 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.8

Radius: 8.1

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.62 AU - 2.44 AU

Year: 1962 Days

Day: 7.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 68,583,072 km

• M1: 100,679 km (0.076 R)
• M2: 361,129 km (0.073 R)
• M3: 625,618 km (0.07 R)
• M4: 884,273 km (0.096 R)
• M5: 1,185,713 km (0.071 R)
• M6: 1,699,133 km (0.105 R)
• M7: 2,013,139 km (0.096 R)
• M8: 2,971,911 km (0.059 R)
• M9: 3,304,168 km (0.081 R)
• M10: 3,577,633 km (0.111 R)
• M11: 3,883,710 km (0.049 R)
• M12: 4,587,867 km (0.12 R)
• M13: 5,287,686 km (0.084 R)
• M14: 5,618,148 km (0.117 R)
• M15: 9,499,465 km (0.095 R)
• M16: 11,232,107 km (0.038 R)
• M17: 11,668,634 km (0.089 R)
• M18: 12,003,434 km (0.105 R)
• M19: 13,285,936 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 359.8

Radius: 10.4

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.61 AU - 2.95 AU

Year: 3144 Days

Day: 14.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,583,072 km

• M1: 196,721 km (0.086 R)
• M2: 628,012 km (0.049 R)
• M3: 2,055,924 km (0.101 R)
• M4: 2,924,638 km (0.097 R)
• M5: 3,738,301 km (0.11 R)
• M6: 6,349,682 km (0.075 R)
• M7: 6,810,593 km (0.057 R)
• M8: 7,206,728 km (0.111 R)
• M9: 7,891,288 km (0.055 R)
• M10: 10,688,469 km (0.074 R)
• M11: 11,818,980 km (0.071 R)
• M12: 12,392,388 km (0.051 R)
• M13: 13,817,757 km (0.117 R)
• M14: 17,094,249 km (0.117 R)
• M15: 17,458,520 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.2

Radius: 11.4

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.35 AU - 5.49 AU

Year: 6303 Days

Day: 12.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,583,072 km

• M1: 141,819 km (0.038 R)
• M2: 542,292 km (0.102 R)
• M3: 1,157,588 km (0.093 R)
• M4: 2,206,120 km (0.088 R)
• M5: 2,949,023 km (0.11 R)
• M6: 4,460,261 km (0.098 R)
• M7: 5,585,685 km (0.095 R)
• M8: 6,299,118 km (0.073 R)
• M9: 6,748,659 km (0.09 R)
• M10: 7,482,138 km (0.118 R)
• M11: 8,597,240 km (0.047 R)
• M12: 9,774,575 km (0.099 R)
• M13: 11,056,330 km (0.118 R)
• M14: 12,393,436 km (0.041 R)
• M15: 12,990,481 km (0.107 R)
• M16: 17,789,730 km (0.094 R)
• M17: 19,259,529 km (0.103 R)
• M18: 23,573,483 km (0.107 R)
• M19: 24,406,294 km (0.092 R)
• M20: 26,042,446 km (0.107 R)
• M21: 30,500,163 km (0.109 R)
• M22: 32,806,215 km (0.112 R)
• M23: 33,426,447 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.5

Radius: 14.9

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 3.38 AU - 5.6 AU

Year: 6453 Days

Day: 8.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,583,072 km

• M1: 194,776 km (0.098 R)
• M2: 687,851 km (0.08 R)
• M3: 1,457,682 km (0.091 R)
• M4: 2,124,888 km (0.084 R)
• M5: 4,633,944 km (0.088 R)
• M6: 5,607,975 km (0.115 R)
• M7: 6,223,720 km (0.114 R)
• M8: 7,267,315 km (0.066 R)
• M9: 7,812,749 km (0.052 R)
• M10: 9,402,675 km (0.109 R)
• M11: 10,274,382 km (0.118 R)
• M12: 10,822,957 km (0.118 R)
• M13: 11,830,200 km (0.118 R)
• M14: 15,882,656 km (0.087 R)
• M15: 17,056,401 km (0.114 R)
• M16: 17,632,353 km (0.099 R)
• M17: 19,300,220 km (0.084 R)
• M18: 23,336,819 km (0.07 R)
• M19: 25,263,041 km (0.079 R)
• M20: 26,690,055 km (0.095 R)
• M21: 28,259,038 km (0.052 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.5

Radius: 8.3

Gravity: 11.74 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 4.3 AU - 5.16 AU

Year: 6977 Days

Day: 12.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,583,072 km

• M1: 103,671 km (0.099 R)
• M2: 673,490 km (0.111 R)
• M3: 1,866,383 km (0.107 R)
• M4: 2,442,784 km (0.117 R)
• M5: 5,041,747 km (0.072 R)
• M6: 5,691,750 km (0.09 R)
• M7: 5,953,696 km (0.047 R)
• M8: 6,466,667 km (0.11 R)
• M9: 8,060,483 km (0.06 R)
• M10: 8,433,281 km (0.087 R)
• M11: 9,036,310 km (0.082 R)
• M12: 9,667,762 km (0.109 R)
• M13: 14,631,420 km (0.119 R)
• M14: 15,375,220 km (0.106 R)
• M15: 17,005,538 km (0.094 R)
• M16: 18,892,266 km (0.074 R)
• M17: 19,998,692 km (0.103 R)
• M18: 22,340,048 km (0.098 R)
• M19: 23,325,898 km (0.066 R)
• M20: 29,368,755 km (0.103 R)
• M21: 29,661,368 km (0.099 R)
• M22: 39,020,211 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 179.3

Radius: 7.3

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 7.61 AU - 8.47 AU

Year: 15462 Days

Day: 22.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,583,072 km

• M1: 94,546 km (0.087 R)
• M2: 895,942 km (0.097 R)
• M3: 1,560,904 km (0.076 R)
• M4: 3,343,363 km (0.05 R)
• M5: 3,893,733 km (0.072 R)
• M6: 5,204,360 km (0.102 R)
• M7: 5,743,960 km (0.119 R)
• M8: 6,934,161 km (0.082 R)
• M9: 7,352,287 km (0.028 R)
• M10: 9,560,202 km (0.1 R)
• M11: 13,824,040 km (0.106 R)
• M12: 14,609,130 km (0.091 R)
• M13: 15,809,653 km (0.028 R)
• M14: 18,549,538 km (0.062 R)
• M15: 19,504,122 km (0.105 R)
• M16: 20,337,083 km (0.08 R)
• M17: 21,193,680 km (0.083 R)
• M18: 21,912,049 km (0.09 R)
• M19: 22,155,145 km (0.118 R)
• M20: 22,812,030 km (0.07 R)
• M21: 23,821,815 km (0.091 R)
• M22: 32,890,139 km (0.075 R)
• M23: 33,315,595 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 473.5

Radius: 3.2

Gravity: 46.24 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 9.62 AU - 9.84 AU

Year: 20585 Days

Day: 18.2 Hours

Environment

Temp: -242 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,583,072 km

• M1: 42,935 km (0.026 R)
• M2: 310,116 km (0.093 R)
• M3: 459,864 km (0.088 R)
• M4: 702,212 km (0.086 R)
• M5: 1,011,282 km (0.08 R)
• M6: 1,465,311 km (0.118 R)
• M7: 1,835,566 km (0.116 R)
• M8: 2,023,012 km (0.106 R)
• M9: 3,054,789 km (0.111 R)
• M10: 3,345,607 km (0.045 R)
• M11: 6,931,468 km (0.076 R)
• M12: 10,535,879 km (0.12 R)
• M13: 15,597,822 km (0.059 R)
• M14: 16,854,444 km (0.113 R)
• M15: 24,468,677 km (0.113 R)
• M16: 30,846,931 km (0.065 R)
• M17: 31,576,520 km (0.058 R)
• M18: 36,331,788 km (0.119 R)
• M19: 40,810,898 km (0.114 R)
• M20: 44,401,994 km (0.106 R)
• M21: 57,884,054 km (0.086 R)
• M22: 68,172,647 km (0.099 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: 327 - 11,218 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit