🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.8

Radius: 11.7

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.85 AU - 1.13 AU

Year: 680 Days

Day: 5.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 64,611,410 km

• M1: 145,559 km (0.05 R)
• M2: 716,873 km (0.079 R)
• M3: 1,345,034 km (0.105 R)
• M4: 1,860,848 km (0.105 R)
• M5: 2,643,544 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.9

Radius: 13.8

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.88 AU - 1.42 AU

Year: 851 Days

Day: 10.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,611,410 km

• M1: 171,738 km (0.051 R)
• M2: 706,102 km (0.031 R)
• M3: 1,213,837 km (0.1 R)
• M4: 1,660,686 km (0.085 R)
• M5: 2,150,619 km (0.029 R)
• M6: 2,645,938 km (0.12 R)
• M7: 3,725,137 km (0.103 R)
• M8: 4,430,939 km (0.075 R)
• M9: 4,920,723 km (0.05 R)
• M10: 5,465,259 km (0.048 R)
• M11: 5,969,853 km (0.094 R)
• M12: 6,462,927 km (0.101 R)
• M13: 7,768,617 km (0.079 R)
• M14: 8,586,319 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.8

Radius: 14.8

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.51 AU - 2.35 AU

Year: 1851 Days

Day: 10.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 64,611,410 km

• M1: 184,155 km (0.059 R)
• M2: 713,731 km (0.105 R)
• M3: 1,197,681 km (0.106 R)
• M4: 2,201,781 km (0.1 R)
• M5: 3,175,664 km (0.082 R)
• M6: 3,746,379 km (0.073 R)
• M7: 4,788,329 km (0.071 R)
• M8: 5,884,432 km (0.072 R)
• M9: 6,727,865 km (0.057 R)
• M10: 7,241,734 km (0.111 R)
• M11: 8,075,293 km (0.102 R)
• M12: 9,596,105 km (0.062 R)
• M13: 11,539,980 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.8

Radius: 9.1

Gravity: 9.63 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.18 AU - 3.74 AU

Year: 4442 Days

Day: 14.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,611,410 km

• M1: 113,246 km (0.097 R)
• M2: 450,738 km (0.118 R)
• M3: 926,759 km (0.112 R)
• M4: 2,438,595 km (0.081 R)
• M5: 2,960,093 km (0.117 R)
• M6: 3,924,999 km (0.112 R)
• M7: 4,249,627 km (0.061 R)
• M8: 4,847,869 km (0.105 R)
• M9: 5,360,541 km (0.113 R)
• M10: 7,016,739 km (0.117 R)
• M11: 7,322,816 km (0.028 R)
• M12: 8,792,465 km (0.087 R)
• M13: 9,805,392 km (0.119 R)
• M14: 10,714,947 km (0.092 R)
• M15: 13,156,534 km (0.068 R)
• M16: 13,570,472 km (0.112 R)
• M17: 14,207,908 km (0.067 R)
• M18: 14,920,742 km (0.113 R)
• M19: 21,506,639 km (0.083 R)
• M20: 22,446,113 km (0.054 R)
• M21: 24,640,116 km (0.104 R)
• M22: 26,071,618 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.1

Radius: 8

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.17 AU - 5.01 AU

Year: 5709 Days

Day: 8.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,611,410 km

• M1: 99,483 km (0.102 R)
• M2: 547,079 km (0.078 R)
• M3: 852,857 km (0.063 R)
• M4: 1,432,250 km (0.108 R)
• M5: 1,945,072 km (0.041 R)
• M6: 2,332,979 km (0.107 R)
• M7: 4,339,236 km (0.057 R)
• M8: 4,685,705 km (0.093 R)
• M9: 5,533,326 km (0.036 R)
• M10: 6,932,964 km (0.081 R)
• M11: 8,996,367 km (0.104 R)
• M12: 13,962,418 km (0.098 R)
• M13: 14,767,404 km (0.115 R)
• M14: 16,314,545 km (0.086 R)
• M15: 17,100,682 km (0.049 R)
• M16: 19,090,334 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.8

Radius: 12.9

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.48 AU - 5.22 AU

Year: 6262 Days

Day: 10.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,611,410 km

• M1: 160,369 km (0.118 R)
• M2: 863,778 km (0.111 R)
• M3: 1,519,765 km (0.081 R)
• M4: 2,303,658 km (0.075 R)
• M5: 2,996,445 km (0.092 R)
• M6: 3,758,946 km (0.105 R)
• M7: 4,400,721 km (0.114 R)
• M8: 5,786,595 km (0.05 R)
• M9: 6,970,812 km (0.08 R)
• M10: 7,762,634 km (0.07 R)
• M11: 9,161,074 km (0.09 R)
• M12: 12,159,614 km (0.089 R)
• M13: 12,649,996 km (0.11 R)
• M14: 14,855,517 km (0.064 R)
• M15: 15,303,114 km (0.072 R)
• M16: 16,284,027 km (0.093 R)
• M17: 17,123,122 km (0.083 R)
• M18: 18,499,422 km (0.117 R)
• M19: 21,828,424 km (0.098 R)
• M20: 22,261,809 km (0.085 R)
• M21: 26,424,669 km (0.091 R)
• M22: 27,751,452 km (0.032 R)
• M23: 28,948,385 km (0.052 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.7

Radius: 9

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 4.17 AU - 5.65 AU

Year: 7510 Days

Day: 6.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 64,611,410 km

• M1: 112,049 km (0.092 R)
• M2: 857,944 km (0.099 R)
• M3: 1,316,162 km (0.115 R)
• M4: 3,469,474 km (0.115 R)
• M5: 6,821,513 km (0.063 R)
• M6: 7,283,771 km (0.115 R)
• M7: 8,301,335 km (0.077 R)
• M8: 13,710,794 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 877.5

Radius: 6.1

Gravity: 23.58 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.28 AU - 6.98 AU

Year: 9221 Days

Day: 24.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 64,611,410 km

• M1: 75,846 km (0.09 R)
• M2: 266,434 km (0.107 R)
• M3: 723,156 km (0.114 R)
• M4: 1,977,235 km (0.071 R)
• M5: 3,156,964 km (0.088 R)
• M6: 3,494,606 km (0.072 R)
• M7: 6,762,721 km (0.116 R)
• M8: 7,039,627 km (0.095 R)
• M9: 8,047,019 km (0.115 R)
• M10: 9,584,436 km (0.073 R)
• M11: 10,658,998 km (0.04 R)
• M12: 12,388,648 km (0.092 R)
• M13: 12,684,104 km (0.09 R)
• M14: 13,227,893 km (0.102 R)
• M15: 15,696,108 km (0.082 R)
• M16: 16,322,624 km (0.05 R)
• M17: 29,365,912 km (0.104 R)
• M18: 30,853,214 km (0.085 R)
• M19: 31,069,683 km (0.088 R)
• M20: 31,505,760 km (0.081 R)
• M21: 36,333,284 km (0.094 R)
• M22: 38,419,725 km (0.107 R)
• M23: 41,895,781 km (0.045 R)
• M24: 44,051,487 km (0.105 R)
• M25: 46,280,046 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 688.8

Radius: 7.5

Gravity: 12.25 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 9.57 AU - 10.19 AU

Year: 21436 Days

Day: 24.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 130.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 64,611,410 km

• M1: 99,183 km (0.113 R)
• M2: 693,685 km (0.086 R)
• M3: 1,384,678 km (0.05 R)
• M4: 1,751,641 km (0.111 R)
• M5: 2,657,606 km (0.088 R)
• M6: 3,255,250 km (0.075 R)
• M7: 3,571,200 km (0.062 R)
• M8: 4,034,954 km (0.093 R)
• M9: 11,112,728 km (0.118 R)
• M10: 14,399,543 km (0.113 R)
• M11: 16,470,726 km (0.093 R)
• M12: 20,318,981 km (0.074 R)
• M13: 20,997,408 km (0.086 R)
• M14: 21,391,748 km (0.097 R)
• M15: 23,649,927 km (0.064 R)
• M16: 33,332,650 km (0.106 R)
• M17: 34,548,581 km (0.06 R)
• M18: 42,786,487 km (0.059 R)
• M19: 43,102,737 km (0.119 R)
• M20: 44,707,473 km (0.075 R)
• M21: 47,020,256 km (0.069 R)
• M22: 48,720,436 km (0.064 R)
• M23: 49,065,259 km (0.074 R)
• M24: 53,881,862 km (0.074 R)
• M25: 69,112,421 km (0.113 R)
• M26: 77,233,341 km (0.068 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 306.8

Radius: 6.1

Gravity: 8.25 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 9.7 AU - 11.24 AU

Year: 23385 Days

Day: 24.5 Hours

Environment

Temp: -242 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,611,410 km

• M1: 102,026 km (0.103 R)
• M2: 791,522 km (0.117 R)
• M3: 1,304,194 km (0.102 R)
• M4: 2,112,322 km (0.109 R)
• M5: 2,332,380 km (0.091 R)
• M6: 2,963,085 km (0.112 R)
• M7: 7,438,305 km (0.043 R)
• M8: 10,522,714 km (0.091 R)
• M9: 16,212,819 km (0.099 R)
• M10: 19,312,487 km (0.074 R)
• M11: 33,491,223 km (0.053 R)
• M12: 39,013,479 km (0.114 R)
• M13: 47,279,210 km (0.104 R)
• M14: 58,250,120 km (0.115 R)
• M15: 61,375,668 km (0.112 R)
• M16: 64,611,470 km (0.11 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 16,092 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit