🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 934.1

Radius: 11.1

Gravity: 7.58 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.95 AU - 1.01 AU

Year: 647 Days

Day: 14.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,204,360 km

• M1: 141,669 km (0.118 R)
• M2: 547,827 km (0.088 R)
• M3: 947,703 km (0.088 R)
• M4: 2,013,587 km (0.101 R)
• M5: 2,420,643 km (0.062 R)
• M6: 3,129,139 km (0.027 R)
• M7: 3,707,783 km (0.116 R)
• M8: 4,453,229 km (0.055 R)
• M9: 4,991,931 km (0.09 R)
• M10: 5,630,714 km (0.098 R)
• M11: 6,302,558 km (0.112 R)
• M12: 8,315,697 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.3

Radius: 13.9

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.4 AU - 1.7 AU

Year: 1287 Days

Day: 5.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 73,204,360 km

• M1: 172,935 km (0.117 R)
• M2: 713,881 km (0.081 R)
• M3: 1,168,359 km (0.096 R)
• M4: 2,405,534 km (0.068 R)
• M5: 3,093,684 km (0.118 R)
• M6: 3,548,461 km (0.06 R)
• M7: 4,013,412 km (0.08 R)
• M8: 4,847,121 km (0.091 R)
• M9: 6,299,118 km (0.102 R)
• M10: 6,759,580 km (0.118 R)
• M11: 8,832,109 km (0.119 R)
• M12: 9,630,064 km (0.064 R)
• M13: 10,210,204 km (0.115 R)
• M14: 10,985,420 km (0.077 R)
• M15: 12,240,247 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.6

Radius: 8.5

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.44 AU - 1.74 AU

Year: 1337 Days

Day: 9.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 73,204,360 km

• M1: 110,702 km (0.109 R)
• M2: 791,672 km (0.111 R)
• M3: 1,133,802 km (0.112 R)
• M4: 2,148,525 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59

Radius: 13.4

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.26 AU - 2.72 AU

Year: 2620 Days

Day: 9.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,204,360 km

• M1: 166,652 km (0.111 R)
• M2: 648,058 km (0.081 R)
• M3: 1,130,511 km (0.048 R)
• M4: 1,558,062 km (0.045 R)
• M5: 2,086,741 km (0.089 R)
• M6: 2,723,429 km (0.069 R)
• M7: 4,871,056 km (0.108 R)
• M8: 5,687,861 km (0.063 R)
• M9: 6,179,888 km (0.05 R)
• M10: 6,786,358 km (0.115 R)
• M11: 8,315,697 km (0.077 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 114.8

Radius: 4.8

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 5.71 AU - 6.19 AU

Year: 9678 Days

Day: 21.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 73,204,360 km

• M1: 69,264 km (0.08 R)
• M2: 223,050 km (0.09 R)
• M3: 513,121 km (0.09 R)
• M4: 1,012,329 km (0.051 R)
• M5: 1,283,550 km (0.074 R)
• M6: 1,850,675 km (0.083 R)
• M7: 2,183,231 km (0.078 R)
• M8: 2,603,601 km (0.064 R)
• M9: 2,912,671 km (0.113 R)
• M10: 3,132,131 km (0.115 R)
• M11: 3,481,741 km (0.102 R)
• M12: 4,167,198 km (0.038 R)
• M13: 6,148,772 km (0.113 R)
• M14: 6,602,951 km (0.066 R)
• M15: 7,014,495 km (0.089 R)
• M16: 7,749,469 km (0.117 R)
• M17: 8,279,195 km (0.092 R)
• M18: 8,908,404 km (0.091 R)
• M19: 9,890,663 km (0.081 R)
• M20: 10,943,234 km (0.032 R)
• M21: 12,208,233 km (0.093 R)
• M22: 13,218,767 km (0.096 R)
• M23: 13,617,894 km (0.052 R)
• M24: 20,279,487 km (0.118 R)
• M25: 20,477,555 km (0.103 R)
• M26: 21,830,668 km (0.086 R)
• M27: 23,531,895 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 597.2

Radius: 8

Gravity: 9.33 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 6.24 AU - 7.3 AU

Year: 11747 Days

Day: 21.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 73,204,360 km

• M1: 99,483 km (0.075 R)
• M2: 605,123 km (0.09 R)
• M3: 866,172 km (0.043 R)
• M4: 1,277,267 km (0.108 R)
• M5: 2,116,959 km (0.034 R)
• M6: 2,553,336 km (0.063 R)
• M7: 5,348,273 km (0.032 R)
• M8: 5,868,126 km (0.064 R)
• M9: 6,730,259 km (0.1 R)
• M10: 7,760,240 km (0.028 R)
• M11: 9,034,664 km (0.089 R)
• M12: 9,472,388 km (0.073 R)
• M13: 9,721,618 km (0.113 R)
• M14: 12,225,288 km (0.088 R)
• M15: 13,815,663 km (0.095 R)
• M16: 15,816,684 km (0.1 R)
• M17: 17,105,918 km (0.071 R)
• M18: 17,476,173 km (0.096 R)
• M19: 18,156,095 km (0.053 R)
• M20: 19,973,709 km (0.115 R)
• M21: 20,800,537 km (0.074 R)
• M22: 21,392,645 km (0.099 R)
• M23: 27,339,310 km (0.118 R)
• M24: 31,566,497 km (0.112 R)
• M25: 33,487,932 km (0.088 R)
• M26: 36,331,339 km (0.119 R)
• M27: 42,764,496 km (0.099 R)
• M28: 45,254,553 km (0.091 R)
• M29: 45,537,143 km (0.097 R)
• M30: 48,280,020 km (0.078 R)
• M31: 48,722,830 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 833.4

Radius: 3.8

Gravity: 57.71 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 5.46 AU - 8.68 AU

Year: 12536 Days

Day: 23.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 73,204,360 km

• M1: 49,218 km (0.108 R)
• M2: 309,518 km (0.114 R)
• M3: 1,338,303 km (0.091 R)
• M4: 2,222,576 km (0.093 R)
• M5: 3,519,440 km (0.094 R)
• M6: 4,114,390 km (0.073 R)
• M7: 4,873,151 km (0.086 R)
• M8: 5,215,281 km (0.103 R)
• M9: 5,909,265 km (0.092 R)
• M10: 6,539,521 km (0.073 R)
• M11: 8,166,847 km (0.104 R)
• M12: 9,512,031 km (0.117 R)
• M13: 13,016,212 km (0.078 R)
• M14: 13,210,988 km (0.074 R)
• M15: 16,599,380 km (0.077 R)
• M16: 17,686,956 km (0.101 R)
• M17: 17,926,163 km (0.104 R)
• M18: 19,154,063 km (0.082 R)
• M19: 20,700,157 km (0.041 R)
• M20: 29,023,333 km (0.09 R)
• M21: 31,521,917 km (0.117 R)
• M22: 32,109,089 km (0.108 R)
• M23: 36,941,848 km (0.102 R)
• M24: 38,788,334 km (0.07 R)
• M25: 39,057,162 km (0.032 R)
• M26: 48,793,739 km (0.109 R)
• M27: 51,175,038 km (0.085 R)
• M28: 51,822,797 km (0.101 R)
• M29: 56,684,279 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 866

Radius: 5.6

Gravity: 27.61 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 8 AU - 11.26 AU

Year: 19928 Days

Day: 19.2 Hours

Environment

Temp: -243 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 73,204,360 km

• M1: 70,610 km (0.094 R)
• M2: 580,440 km (0.054 R)
• M3: 839,992 km (0.085 R)
• M4: 1,246,300 km (0.047 R)
• M5: 2,008,351 km (0.035 R)
• M6: 2,584,303 km (0.11 R)
• M7: 3,466,482 km (0.078 R)
• M8: 4,359,731 km (0.073 R)
• M9: 5,162,174 km (0.047 R)
• M10: 6,016,078 km (0.041 R)
• M11: 7,151,077 km (0.032 R)
• M12: 8,209,183 km (0.106 R)
• M13: 13,272,024 km (0.098 R)
• M14: 15,497,891 km (0.059 R)
• M15: 17,170,544 km (0.064 R)
• M16: 17,606,772 km (0.05 R)
• M17: 20,869,651 km (0.046 R)
• M18: 24,295,293 km (0.054 R)
• M19: 25,178,818 km (0.099 R)
• M20: 28,805,220 km (0.108 R)
• M21: 32,765,075 km (0.079 R)
• M22: 36,640,408 km (0.084 R)
• M23: 42,373,148 km (0.056 R)
• M24: 55,955,438 km (0.04 R)
• M25: 56,720,930 km (0.04 R)
• M26: 61,056,725 km (0.118 R)
• M27: 63,512,225 km (0.033 R)
• M28: 67,102,574 km (0.109 R)
• M29: 68,619,347 km (0.105 R)
• M30: 69,056,920 km (0.082 R)
• M31: 81,586,041 km (0.026 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 487.8

Radius: 4.6

Gravity: 23.05 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 8.26 AU - 12.54 AU

Year: 22366 Days

Day: 23.4 Hours

Environment

Temp: -240 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 73,204,360 km

• M1: 57,146 km (0.11 R)
• M2: 334,950 km (0.101 R)
• M3: 924,216 km (0.068 R)
• M4: 1,403,078 km (0.088 R)
• M5: 1,768,396 km (0.091 R)
• M6: 5,098,595 km (0.061 R)
• M7: 5,437,883 km (0.075 R)
• M8: 5,752,038 km (0.101 R)
• M9: 6,678,348 km (0.04 R)
• M10: 6,947,475 km (0.105 R)
• M11: 10,763,268 km (0.089 R)
• M12: 11,008,907 km (0.083 R)
• M13: 11,258,287 km (0.106 R)
• M14: 11,447,678 km (0.089 R)
• M15: 15,080,064 km (0.027 R)
• M16: 18,173,748 km (0.074 R)
• M17: 22,553,375 km (0.094 R)
• M18: 27,816,826 km (0.1 R)
• M19: 32,421,150 km (0.088 R)
• M20: 33,843,077 km (0.116 R)
• M21: 35,984,870 km (0.03 R)
• M22: 37,790,068 km (0.087 R)
• M23: 44,662,295 km (0.092 R)
• M24: 48,724,774 km (0.104 R)
• M25: 55,908,913 km (0.087 R)
• M26: 66,610,397 km (0.095 R)
• M27: 71,679,072 km (0.12 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: 516 - 12,990 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit