🌌 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: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.62 AU - 0.62 AU

Year: 310 Days

Day: 30.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 8.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.3

Radius: 11.5

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.86 AU - 1.22 AU

Year: 674 Days

Day: 11.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 83,054,809 km

• M1: 143,165 km (0.094 R)
• M2: 872,754 km (0.076 R)
• M3: 1,591,123 km (0.106 R)
• M4: 2,191,609 km (0.096 R)
• M5: 5,902,534 km (0.117 R)
• M6: 6,503,468 km (0.035 R)
• M7: 7,211,066 km (0.044 R)
• M8: 8,185,247 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.7

Radius: 11.7

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.31 AU - 1.81 AU

Year: 1239 Days

Day: 13.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 83,054,809 km

• M1: 145,559 km (0.079 R)
• M2: 714,330 km (0.097 R)
• M3: 1,098,946 km (0.054 R)
• M4: 1,726,958 km (0.041 R)
• M5: 2,108,283 km (0.093 R)
• M6: 2,595,972 km (0.061 R)
• M7: 3,289,208 km (0.061 R)
• M8: 4,492,274 km (0.104 R)
• M9: 5,409,758 km (0.088 R)
• M10: 6,518,578 km (0.062 R)
• M11: 8,124,361 km (0.077 R)
• M12: 8,685,353 km (0.101 R)
• M13: 9,332,214 km (0.054 R)
• M14: 10,074,220 km (0.094 R)
• M15: 11,536,389 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.5

Radius: 8.2

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.58 AU - 2.9 AU

Year: 2884 Days

Day: 7.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 83,054,809 km

• M1: 103,671 km (0.088 R)
• M2: 657,333 km (0.112 R)
• M3: 1,444,367 km (0.068 R)
• M4: 2,681,093 km (0.075 R)
• M5: 3,321,073 km (0.04 R)
• M6: 5,652,556 km (0.042 R)
• M7: 6,566,449 km (0.094 R)
• M8: 9,320,396 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.5

Radius: 11.3

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 3.19 AU - 5.27 AU

Year: 5532 Days

Day: 8.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 83,054,809 km

• M1: 140,772 km (0.102 R)
• M2: 708,944 km (0.049 R)
• M3: 1,089,521 km (0.099 R)
• M4: 1,586,186 km (0.027 R)
• M5: 2,051,585 km (0.118 R)
• M6: 2,522,220 km (0.082 R)
• M7: 3,201,694 km (0.068 R)
• M8: 3,884,458 km (0.064 R)
• M9: 4,285,231 km (0.08 R)
• M10: 4,925,211 km (0.105 R)
• M11: 9,246,495 km (0.067 R)
• M12: 10,675,005 km (0.079 R)
• M13: 12,597,637 km (0.06 R)
• M14: 13,856,503 km (0.114 R)
• M15: 14,741,075 km (0.104 R)
• M16: 20,929,191 km (0.117 R)
• M17: 22,994,390 km (0.106 R)
• M18: 24,391,634 km (0.078 R)
• M19: 25,354,146 km (0.119 R)
• M20: 25,844,678 km (0.056 R)
• M21: 27,698,046 km (0.031 R)
• M22: 30,826,885 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.5

Radius: 10.8

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.38 AU - 5.32 AU

Year: 5769 Days

Day: 11.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 83,054,809 km

• M1: 135,386 km (0.09 R)
• M2: 507,885 km (0.067 R)
• M3: 1,585,139 km (0.065 R)
• M4: 2,192,058 km (0.104 R)
• M5: 2,607,042 km (0.071 R)
• M6: 3,253,155 km (0.051 R)
• M7: 3,741,144 km (0.035 R)
• M8: 4,119,177 km (0.059 R)
• M9: 7,236,199 km (0.107 R)
• M10: 7,735,556 km (0.092 R)
• M11: 8,575,997 km (0.107 R)
• M12: 9,068,623 km (0.093 R)
• M13: 9,754,679 km (0.041 R)
• M14: 10,291,586 km (0.05 R)
• M15: 10,697,893 km (0.12 R)
• M16: 11,900,810 km (0.066 R)
• M17: 12,431,134 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.8

Radius: 9

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 5.49 AU - 6.09 AU

Year: 8858 Days

Day: 5.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 83,054,809 km

• M1: 111,899 km (0.084 R)
• M2: 449,093 km (0.107 R)
• M3: 808,427 km (0.057 R)
• M4: 1,497,923 km (0.097 R)
• M5: 1,907,223 km (0.039 R)
• M6: 2,555,730 km (0.105 R)
• M7: 2,931,520 km (0.1 R)
• M8: 3,672,628 km (0.036 R)
• M9: 4,646,061 km (0.11 R)
• M10: 5,208,549 km (0.118 R)
• M11: 6,153,858 km (0.08 R)
• M12: 6,758,832 km (0.107 R)
• M13: 7,324,910 km (0.1 R)
• M14: 7,963,394 km (0.038 R)
• M15: 9,628,269 km (0.106 R)
• M16: 10,893,418 km (0.068 R)
• M17: 12,156,473 km (0.085 R)
• M18: 13,456,029 km (0.099 R)
• M19: 14,908,325 km (0.051 R)
• M20: 16,262,336 km (0.076 R)
• M21: 16,935,227 km (0.101 R)
• M22: 17,278,554 km (0.084 R)
• M23: 19,511,901 km (0.086 R)
• M24: 20,271,559 km (0.107 R)
• M25: 24,281,829 km (0.12 R)
• M26: 24,894,881 km (0.057 R)
• M27: 25,698,072 km (0.106 R)
• M28: 29,280,941 km (0.076 R)
• M29: 32,229,664 km (0.07 R)
• M30: 34,156,186 km (0.056 R)
• M31: 37,651,989 km (0.047 R)
• M32: 40,762,278 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 735.8

Radius: 8

Gravity: 11.5 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 4.73 AU - 7.79 AU

Year: 9959 Days

Day: 16.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 83,054,809 km

• M1: 99,483 km (0.09 R)
• M2: 545,434 km (0.117 R)
• M3: 1,568,982 km (0.068 R)
• M4: 2,341,057 km (0.091 R)
• M5: 2,675,857 km (0.096 R)
• M6: 3,797,093 km (0.034 R)
• M7: 4,551,366 km (0.109 R)
• M8: 5,075,108 km (0.12 R)
• M9: 5,989,001 km (0.042 R)
• M10: 6,354,020 km (0.119 R)
• M11: 6,889,880 km (0.097 R)
• M12: 8,272,014 km (0.08 R)
• M13: 9,435,736 km (0.082 R)
• M14: 9,830,076 km (0.12 R)
• M15: 10,864,545 km (0.069 R)
• M16: 12,026,771 km (0.11 R)
• M17: 12,608,557 km (0.105 R)
• M18: 13,765,248 km (0.057 R)
• M19: 15,393,172 km (0.083 R)
• M20: 18,107,326 km (0.115 R)
• M21: 19,026,605 km (0.105 R)
• M22: 22,057,308 km (0.115 R)
• M23: 23,913,220 km (0.083 R)
• M24: 24,646,848 km (0.07 R)
• M25: 28,439,602 km (0.075 R)
• M26: 28,746,428 km (0.06 R)
• M27: 31,828,443 km (0.076 R)
• M28: 34,193,137 km (0.117 R)
• M29: 36,311,143 km (0.081 R)
• M30: 37,158,017 km (0.088 R)
• M31: 42,384,069 km (0.038 R)
• M32: 42,784,542 km (0.104 R)
• M33: 47,359,245 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 588.3

Radius: 3.1

Gravity: 61.22 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 8.19 AU - 10.81 AU

Year: 18617 Days

Day: 15.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 83,054,809 km

• M1: 120,576 km (0.117 R)
• M2: 227,688 km (0.109 R)
• M3: 348,114 km (0.04 R)
• M4: 606,619 km (0.117 R)
• M5: 1,719,328 km (0.112 R)
• M6: 2,360,804 km (0.064 R)
• M7: 2,560,368 km (0.104 R)
• M8: 3,147,838 km (0.1 R)
• M9: 3,731,120 km (0.092 R)
• M10: 6,234,940 km (0.049 R)
• M11: 8,396,928 km (0.084 R)
• M12: 13,139,630 km (0.088 R)
• M13: 16,702,153 km (0.118 R)
• M14: 22,091,866 km (0.086 R)
• M15: 22,579,106 km (0.118 R)
• M16: 28,077,426 km (0.116 R)
• M17: 32,993,960 km (0.09 R)
• M18: 33,886,910 km (0.082 R)
• M19: 44,795,437 km (0.101 R)
• M20: 52,830,638 km (0.117 R)
• M21: 54,935,031 km (0.114 R)
• M22: 60,628,726 km (0.092 R)
• M23: 61,966,580 km (0.119 R)
• M24: 63,324,031 km (0.107 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 868.4

Radius: 5.2

Gravity: 32.12 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 8.7 AU - 11.4 AU

Year: 20257 Days

Day: 20.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 83,054,809 km

• M1: 64,626 km (0.099 R)
• M2: 292,464 km (0.079 R)
• M3: 509,381 km (0.105 R)
• M4: 1,361,341 km (0.079 R)
• M5: 2,609,436 km (0.078 R)
• M6: 3,904,504 km (0.1 R)
• M7: 4,336,842 km (0.107 R)
• M8: 4,949,745 km (0.065 R)
• M9: 5,868,575 km (0.073 R)
• M10: 6,301,511 km (0.107 R)
• M11: 7,038,131 km (0.118 R)
• M12: 8,791,418 km (0.082 R)
• M13: 10,563,405 km (0.103 R)
• M14: 14,561,109 km (0.056 R)
• M15: 16,090,149 km (0.094 R)
• M16: 18,994,591 km (0.072 R)
• M17: 19,652,822 km (0.108 R)
• M18: 21,515,465 km (0.049 R)
• M19: 22,750,844 km (0.069 R)
• M20: 23,707,822 km (0.071 R)
• M21: 25,136,930 km (0.097 R)
• M22: 26,274,772 km (0.071 R)
• M23: 26,506,349 km (0.12 R)
• M24: 26,856,259 km (0.118 R)
• M25: 28,652,480 km (0.112 R)
• M26: 33,422,259 km (0.117 R)
• M27: 37,365,060 km (0.088 R)
• M28: 38,845,032 km (0.091 R)
• M29: 44,332,581 km (0.026 R)
• M30: 51,391,656 km (0.028 R)
• M31: 57,394,869 km (0.108 R)
• M32: 58,570,110 km (0.079 R)
• M33: 69,656,957 km (0.05 R)
• M34: 70,323,266 km (0.113 R)
• M35: 78,653,474 km (0.057 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 508 - 10,593 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit