🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.47 AU - 0.61 AU

Year: 252 Days

Day: 29.4 Hours

Environment

Temp: -120 °C

Axial Tilt: 10.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.2

Radius: 8.7

Gravity: 8.93 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.89 AU - 1.01 AU

Year: 589 Days

Day: 8.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 92,486,800 km

• M1: 110,254 km (0.074 R)
• M2: 434,582 km (0.105 R)
• M3: 756,516 km (0.072 R)
• M4: 1,091,316 km (0.051 R)
• M5: 1,460,823 km (0.071 R)
• M6: 2,116,660 km (0.085 R)
• M7: 2,455,649 km (0.066 R)
• M8: 3,194,513 km (0.073 R)
• M9: 3,549,808 km (0.082 R)
• M10: 5,023,048 km (0.05 R)
• M11: 6,112,270 km (0.08 R)
• M12: 6,763,469 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.5

Radius: 13.5

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.8 AU - 1.16 AU

Year: 617 Days

Day: 13.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 92,486,800 km

• M1: 168,597 km (0.059 R)
• M2: 716,574 km (0.08 R)
• M3: 1,170,454 km (0.107 R)
• M4: 2,163,784 km (0.115 R)
• M5: 2,930,772 km (0.104 R)
• M6: 4,092,399 km (0.106 R)
• M7: 6,372,720 km (0.033 R)
• M8: 7,219,593 km (0.038 R)
• M9: 7,997,353 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.7

Radius: 13.1

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 3.8 AU - 5.1 AU

Year: 5969 Days

Day: 7.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 92,486,800 km

• M1: 165,156 km (0.111 R)
• M2: 1,384,528 km (0.094 R)
• M3: 3,825,966 km (0.06 R)
• M4: 4,509,628 km (0.117 R)
• M5: 4,923,715 km (0.079 R)
• M6: 5,363,383 km (0.085 R)
• M7: 6,986,520 km (0.067 R)
• M8: 8,251,071 km (0.096 R)
• M9: 8,746,987 km (0.115 R)
• M10: 9,981,918 km (0.063 R)
• M11: 10,835,374 km (0.071 R)
• M12: 13,070,964 km (0.104 R)
• M13: 15,975,856 km (0.099 R)
• M14: 16,682,855 km (0.045 R)
• M15: 19,721,338 km (0.062 R)
• M16: 25,983,953 km (0.12 R)
• M17: 27,597,217 km (0.103 R)
• M18: 28,149,682 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.8

Radius: 9.5

Gravity: 9.91 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 4.34 AU - 5.38 AU

Year: 6812 Days

Day: 13.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 92,486,800 km

• M1: 118,182 km (0.083 R)
• M2: 456,573 km (0.052 R)
• M3: 757,713 km (0.037 R)
• M4: 1,156,541 km (0.086 R)
• M5: 2,499,032 km (0.074 R)
• M6: 3,424,744 km (0.105 R)
• M7: 11,124,098 km (0.053 R)
• M8: 12,120,868 km (0.091 R)
• M9: 13,579,896 km (0.067 R)
• M10: 16,978,461 km (0.116 R)
• M11: 22,420,233 km (0.11 R)
• M12: 23,329,788 km (0.056 R)
• M13: 29,901,024 km (0.032 R)
• M14: 30,198,873 km (0.083 R)
• M15: 35,348,182 km (0.09 R)
• M16: 36,128,634 km (0.087 R)
• M17: 37,723,796 km (0.068 R)
• M18: 39,128,071 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.1

Radius: 11

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 4.69 AU - 5.65 AU

Year: 7474 Days

Day: 8.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 92,486,800 km

• M1: 136,882 km (0.107 R)
• M2: 562,488 km (0.045 R)
• M3: 931,097 km (0.092 R)
• M4: 1,411,007 km (0.071 R)
• M5: 1,869,375 km (0.067 R)
• M6: 3,478,300 km (0.09 R)
• M7: 4,013,112 km (0.11 R)
• M8: 4,525,635 km (0.09 R)
• M9: 5,505,650 km (0.094 R)
• M10: 8,928,899 km (0.111 R)
• M11: 10,330,331 km (0.082 R)
• M12: 11,582,017 km (0.104 R)
• M13: 12,269,569 km (0.041 R)
• M14: 12,674,530 km (0.112 R)
• M15: 13,888,666 km (0.105 R)
• M16: 14,834,873 km (0.051 R)
• M17: 17,867,072 km (0.031 R)
• M18: 19,803,317 km (0.102 R)
• M19: 20,220,845 km (0.114 R)
• M20: 23,931,471 km (0.107 R)
• M21: 26,029,880 km (0.063 R)
• M22: 27,638,805 km (0.101 R)
• M23: 27,985,872 km (0.079 R)
• M24: 30,313,017 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 464.7

Radius: 6.4

Gravity: 11.35 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 8.17 AU - 12.43 AU

Year: 21018 Days

Day: 23.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 92,486,800 km

• M1: 80,334 km (0.103 R)
• M2: 657,034 km (0.033 R)
• M3: 941,569 km (0.09 R)
• M4: 1,265,000 km (0.109 R)
• M5: 1,728,454 km (0.092 R)
• M6: 2,116,211 km (0.099 R)
• M7: 2,405,683 km (0.1 R)
• M8: 3,632,984 km (0.081 R)
• M9: 4,942,265 km (0.112 R)
• M10: 5,341,242 km (0.095 R)
• M11: 6,369,728 km (0.063 R)
• M12: 6,624,643 km (0.112 R)
• M13: 6,930,720 km (0.104 R)
• M14: 14,546,598 km (0.073 R)
• M15: 16,690,335 km (0.104 R)
• M16: 17,012,868 km (0.096 R)
• M17: 21,026,878 km (0.09 R)
• M18: 22,559,060 km (0.081 R)
• M19: 24,889,645 km (0.034 R)
• M20: 25,416,828 km (0.089 R)
• M21: 28,392,629 km (0.1 R)
• M22: 29,316,994 km (0.105 R)
• M23: 31,715,646 km (0.102 R)
• M24: 34,894,003 km (0.117 R)
• M25: 36,899,512 km (0.091 R)
• M26: 38,418,080 km (0.101 R)
• M27: 44,445,827 km (0.12 R)
• M28: 46,005,983 km (0.061 R)
• M29: 47,926,071 km (0.055 R)
• M30: 48,905,788 km (0.105 R)
• M31: 50,232,871 km (0.038 R)
• M32: 51,583,739 km (0.091 R)
• M33: 52,440,187 km (0.055 R)
• M34: 56,141,089 km (0.118 R)
• M35: 58,147,496 km (0.04 R)
• M36: 59,261,700 km (0.096 R)
• M37: 65,445,927 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 993.6

Radius: 3.3

Gravity: 91.24 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 8.15 AU - 13.25 AU

Year: 22254 Days

Day: 17 Hours

Environment

Temp: -230 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 92,486,800 km

• M1: 41,289 km (0.071 R)
• M2: 144,960 km (0.102 R)
• M3: 705,653 km (0.045 R)
• M4: 837,449 km (0.057 R)
• M5: 1,984,715 km (0.115 R)
• M6: 4,038,694 km (0.066 R)
• M7: 4,142,066 km (0.103 R)
• M8: 4,247,233 km (0.082 R)
• M9: 4,916,085 km (0.058 R)
• M10: 5,073,761 km (0.075 R)
• M11: 5,781,808 km (0.047 R)
• M12: 7,650,585 km (0.052 R)
• M13: 9,157,185 km (0.102 R)
• M14: 10,457,639 km (0.087 R)
• M15: 10,983,924 km (0.037 R)
• M16: 12,964,750 km (0.088 R)
• M17: 14,436,793 km (0.076 R)
• M18: 18,078,304 km (0.067 R)
• M19: 20,921,412 km (0.072 R)
• M20: 22,394,801 km (0.098 R)
• M21: 23,599,962 km (0.116 R)
• M22: 28,853,241 km (0.03 R)
• M23: 31,209,407 km (0.038 R)
• M24: 37,806,823 km (0.092 R)
• M25: 42,575,255 km (0.092 R)
• M26: 43,073,117 km (0.037 R)
• M27: 43,407,169 km (0.097 R)
• M28: 45,620,469 km (0.079 R)
• M29: 45,967,387 km (0.119 R)
• M30: 48,626,638 km (0.111 R)
• M31: 48,988,815 km (0.042 R)
• M32: 61,972,414 km (0.101 R)
• M33: 63,686,806 km (0.099 R)
• M34: 64,992,945 km (0.058 R)
• M35: 70,396,719 km (0.11 R)
• M36: 73,207,513 km (0.099 R)
• M37: 76,335,904 km (0.072 R)
• M38: 78,056,878 km (0.069 R)
• M39: 86,518,582 km (0.027 R)
• M40: 89,198,478 km (0.094 R)
• M41: 90,559,071 km (0.111 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: 341 - 18,462 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit