🌌 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 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.55 AU - 0.61 AU

Year: 290 Days

Day: 13 Hours

Environment

Temp: -129 °C

Axial Tilt: 29.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.9

Radius: 8.7

Gravity: 9.85 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.78 AU - 0.84 AU

Year: 478 Days

Day: 10.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 67,031,528 km

• M1: 108,758 km (0.059 R)
• M2: 453,282 km (0.111 R)
• M3: 850,613 km (0.083 R)
• M4: 1,200,373 km (0.097 R)
• M5: 1,474,437 km (0.101 R)
• M6: 1,830,629 km (0.07 R)
• M7: 2,197,892 km (0.095 R)
• M8: 2,739,287 km (0.054 R)
• M9: 3,105,203 km (0.086 R)
• M10: 3,428,634 km (0.109 R)
• M11: 3,735,010 km (0.06 R)
• M12: 4,157,774 km (0.075 R)
• M13: 4,462,056 km (0.117 R)
• M14: 5,018,560 km (0.111 R)
• M15: 5,568,631 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.2

Radius: 12.4

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.78 AU - 1.1 AU

Year: 598 Days

Day: 9.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 67,031,528 km

• M1: 154,235 km (0.068 R)
• M2: 658,380 km (0.114 R)
• M3: 1,656,946 km (0.111 R)
• M4: 2,174,555 km (0.082 R)
• M5: 2,608,089 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.7

Radius: 13.4

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.97 AU - 1.21 AU

Year: 747 Days

Day: 10.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 67,031,528 km

• M1: 180,565 km (0.079 R)
• M2: 1,811,331 km (0.062 R)
• M3: 2,551,541 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.2

Radius: 11.6

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2 AU - 2.26 AU

Year: 2039 Days

Day: 13.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,031,528 km

• M1: 145,110 km (0.106 R)
• M2: 527,033 km (0.104 R)
• M3: 942,018 km (0.106 R)
• M4: 2,267,156 km (0.105 R)
• M5: 6,417,898 km (0.104 R)
• M6: 7,089,443 km (0.04 R)
• M7: 7,962,945 km (0.09 R)
• M8: 8,738,909 km (0.063 R)
• M9: 13,574,062 km (0.083 R)
• M10: 14,212,695 km (0.097 R)
• M11: 14,966,968 km (0.104 R)
• M12: 15,947,283 km (0.044 R)
• M13: 17,927,061 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.9

Radius: 9.2

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 5.08 AU - 5.98 AU

Year: 8531 Days

Day: 13.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,031,528 km

• M1: 114,442 km (0.027 R)
• M2: 490,232 km (0.059 R)
• M3: 795,561 km (0.057 R)
• M4: 1,128,716 km (0.073 R)
• M5: 1,911,113 km (0.085 R)
• M6: 2,835,628 km (0.052 R)
• M7: 3,950,581 km (0.035 R)
• M8: 4,528,178 km (0.04 R)
• M9: 6,374,216 km (0.083 R)
• M10: 7,670,780 km (0.086 R)
• M11: 8,028,918 km (0.118 R)
• M12: 8,535,456 km (0.11 R)
• M13: 8,955,826 km (0.117 R)
• M14: 9,724,759 km (0.111 R)
• M15: 10,537,076 km (0.11 R)
• M16: 11,860,867 km (0.055 R)
• M17: 13,478,918 km (0.095 R)
• M18: 13,809,828 km (0.07 R)
• M19: 15,392,424 km (0.028 R)
• M20: 15,858,421 km (0.059 R)
• M21: 18,973,049 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 535.6

Radius: 5.8

Gravity: 15.92 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 5.12 AU - 7.62 AU

Year: 10547 Days

Day: 20.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 67,031,528 km

• M1: 72,405 km (0.098 R)
• M2: 270,024 km (0.092 R)
• M3: 538,852 km (0.108 R)
• M4: 803,191 km (0.108 R)
• M5: 1,163,423 km (0.05 R)
• M6: 2,014,036 km (0.085 R)
• M7: 2,781,922 km (0.045 R)
• M8: 3,529,612 km (0.104 R)
• M9: 4,318,741 km (0.084 R)
• M10: 6,495,390 km (0.068 R)
• M11: 8,532,165 km (0.066 R)
• M12: 9,031,373 km (0.112 R)
• M13: 9,217,772 km (0.091 R)
• M14: 9,502,008 km (0.073 R)
• M15: 11,012,198 km (0.113 R)
• M16: 12,850,607 km (0.06 R)
• M17: 13,325,281 km (0.108 R)
• M18: 15,540,376 km (0.088 R)
• M19: 15,943,393 km (0.05 R)
• M20: 16,981,153 km (0.115 R)
• M21: 19,190,415 km (0.075 R)
• M22: 20,125,402 km (0.071 R)
• M23: 21,008,777 km (0.09 R)
• M24: 21,584,280 km (0.119 R)
• M25: 23,991,459 km (0.096 R)
• M26: 24,439,355 km (0.065 R)
• M27: 30,361,785 km (0.093 R)
• M28: 35,876,561 km (0.047 R)
• M29: 36,462,237 km (0.114 R)
• M30: 42,543,241 km (0.092 R)
• M31: 44,666,334 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 168

Radius: 5

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 6.86 AU - 7.26 AU

Year: 12306 Days

Day: 24.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 67,031,528 km

• M1: 63,130 km (0.08 R)
• M2: 313,258 km (0.063 R)
• M3: 673,639 km (0.087 R)
• M4: 1,343,688 km (0.09 R)
• M5: 1,734,587 km (0.091 R)
• M6: 3,092,936 km (0.12 R)
• M7: 3,587,507 km (0.069 R)
• M8: 5,240,713 km (0.108 R)
• M9: 7,678,260 km (0.11 R)
• M10: 8,101,323 km (0.041 R)
• M11: 9,120,384 km (0.109 R)
• M12: 9,507,244 km (0.066 R)
• M13: 11,508,564 km (0.086 R)
• M14: 12,216,312 km (0.108 R)
• M15: 14,169,162 km (0.12 R)
• M16: 14,398,197 km (0.112 R)
• M17: 16,509,172 km (0.044 R)
• M18: 17,870,064 km (0.113 R)
• M19: 19,656,412 km (0.067 R)
• M20: 21,333,105 km (0.079 R)
• M21: 21,785,639 km (0.075 R)
• M22: 22,553,973 km (0.092 R)
• M23: 24,471,818 km (0.076 R)
• M24: 27,548,149 km (0.113 R)
• M25: 28,902,608 km (0.106 R)
• M26: 34,351,860 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 611.3

Radius: 4.8

Gravity: 26.53 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 8.72 AU - 9.14 AU

Year: 17506 Days

Day: 23 Hours

Environment

Temp: -230 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 67,031,528 km

• M1: 60,288 km (0.073 R)
• M2: 344,374 km (0.033 R)
• M3: 533,765 km (0.029 R)
• M4: 1,008,888 km (0.091 R)
• M5: 1,467,705 km (0.074 R)
• M6: 1,659,489 km (0.111 R)
• M7: 1,904,381 km (0.081 R)
• M8: 2,074,174 km (0.074 R)
• M9: 2,668,826 km (0.064 R)
• M10: 3,210,370 km (0.089 R)
• M11: 3,424,594 km (0.077 R)
• M12: 3,971,524 km (0.074 R)
• M13: 4,124,712 km (0.051 R)
• M14: 5,496,675 km (0.09 R)
• M15: 6,162,535 km (0.112 R)
• M16: 7,057,429 km (0.103 R)
• M17: 7,237,246 km (0.084 R)
• M18: 10,200,480 km (0.1 R)
• M19: 11,081,013 km (0.075 R)
• M20: 11,570,797 km (0.115 R)
• M21: 11,947,484 km (0.076 R)
• M22: 15,111,928 km (0.081 R)
• M23: 17,046,229 km (0.105 R)
• M24: 18,536,822 km (0.069 R)
• M25: 21,210,884 km (0.077 R)
• M26: 21,680,172 km (0.109 R)
• M27: 22,060,600 km (0.096 R)
• M28: 28,200,545 km (0.103 R)
• M29: 28,997,004 km (0.111 R)
• M30: 29,925,408 km (0.072 R)
• M31: 31,113,515 km (0.107 R)
• M32: 33,710,384 km (0.066 R)
• M33: 38,077,146 km (0.108 R)
• M34: 40,754,798 km (0.055 R)
• M35: 42,657,534 km (0.072 R)
• M36: 45,388,592 km (0.11 R)
• M37: 48,072,977 km (0.088 R)
• M38: 57,661,153 km (0.107 R)
• M39: 63,673,641 km (0.06 R)
• M40: 64,845,740 km (0.082 R)
• M41: 65,437,101 km (0.112 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 351 - 12,013 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit