🌌 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 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.9

Radius: 9.5

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.54 AU - 0.7 AU

Year: 326 Days

Day: 10.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,724,072 km

• M1: 118,182 km (0.11 R)
• M2: 915,240 km (0.051 R)
• M3: 1,262,008 km (0.103 R)
• M4: 1,615,956 km (0.051 R)
• M5: 2,184,578 km (0.096 R)
• M6: 3,337,977 km (0.085 R)
• M7: 3,830,902 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.1

Radius: 8.2

Gravity: 12.81 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.87 AU - 1.33 AU

Year: 769 Days

Day: 11.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 72.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,724,072 km

• M1: 102,026 km (0.062 R)
• M2: 630,106 km (0.082 R)
• M3: 1,190,949 km (0.119 R)
• M4: 1,535,323 km (0.108 R)
• M5: 1,843,345 km (0.108 R)
• M6: 2,244,417 km (0.039 R)
• M7: 2,539,723 km (0.05 R)
• M8: 3,414,721 km (0.037 R)
• M9: 3,762,087 km (0.047 R)
• M10: 5,186,558 km (0.114 R)
• M11: 6,345,194 km (0.114 R)
• M12: 7,740,643 km (0.109 R)
• M13: 8,316,445 km (0.096 R)
• M14: 8,628,057 km (0.118 R)
• M15: 9,028,381 km (0.031 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.3

Radius: 9.3

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.12 AU - 1.32 AU

Year: 899 Days

Day: 14.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,724,072 km

• M1: 115,639 km (0.113 R)
• M2: 427,551 km (0.097 R)
• M3: 909,106 km (0.117 R)
• M4: 1,348,326 km (0.113 R)
• M5: 1,639,144 km (0.11 R)
• M6: 2,396,259 km (0.083 R)
• M7: 3,813,848 km (0.037 R)
• M8: 4,967,098 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.4

Radius: 11.8

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.6 AU - 2.36 AU

Year: 1858 Days

Day: 12.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,724,072 km

• M1: 146,756 km (0.076 R)
• M2: 520,900 km (0.11 R)
• M3: 898,784 km (0.09 R)
• M4: 1,504,805 km (0.115 R)
• M5: 3,083,362 km (0.047 R)
• M6: 4,758,708 km (0.118 R)
• M7: 5,213,037 km (0.115 R)
• M8: 5,761,313 km (0.113 R)
• M9: 6,301,511 km (0.066 R)
• M10: 6,974,103 km (0.071 R)
• M11: 7,457,304 km (0.053 R)
• M12: 8,720,509 km (0.114 R)
• M13: 9,161,822 km (0.083 R)
• M14: 9,930,755 km (0.117 R)
• M15: 11,249,760 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.3

Radius: 11

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.9 AU - 2.14 AU

Year: 1915 Days

Day: 6.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,724,072 km

• M1: 136,882 km (0.102 R)
• M2: 509,979 km (0.104 R)
• M3: 940,223 km (0.07 R)
• M4: 1,799,962 km (0.026 R)
• M5: 2,287,950 km (0.039 R)
• M6: 2,633,222 km (0.101 R)
• M7: 3,060,024 km (0.096 R)
• M8: 3,532,754 km (0.089 R)
• M9: 3,960,454 km (0.099 R)
• M10: 4,523,391 km (0.063 R)
• M11: 5,479,022 km (0.109 R)
• M12: 6,460,085 km (0.11 R)
• M13: 7,102,608 km (0.097 R)
• M14: 7,965,189 km (0.058 R)
• M15: 8,896,286 km (0.058 R)
• M16: 10,391,068 km (0.104 R)
• M17: 10,826,248 km (0.107 R)
• M18: 12,007,323 km (0.071 R)
• M19: 13,356,846 km (0.087 R)
• M20: 14,222,569 km (0.113 R)
• M21: 15,637,765 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.3

Radius: 14.4

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.32 AU - 3.2 AU

Year: 3058 Days

Day: 8.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,724,072 km

• M1: 179,069 km (0.053 R)
• M2: 650,003 km (0.117 R)
• M3: 1,106,725 km (0.049 R)
• M4: 1,562,251 km (0.093 R)
• M5: 2,507,260 km (0.109 R)
• M6: 3,318,829 km (0.097 R)
• M7: 3,787,220 km (0.054 R)
• M8: 4,929,399 km (0.111 R)
• M9: 5,671,704 km (0.091 R)
• M10: 6,487,461 km (0.066 R)
• M11: 6,983,827 km (0.093 R)
• M12: 7,759,941 km (0.077 R)
• M13: 8,387,653 km (0.079 R)
• M14: 9,049,175 km (0.086 R)
• M15: 9,782,803 km (0.12 R)
• M16: 10,555,925 km (0.084 R)
• M17: 11,080,116 km (0.113 R)
• M18: 12,444,748 km (0.1 R)
• M19: 13,492,980 km (0.065 R)
• M20: 16,992,224 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.2

Radius: 8.7

Gravity: 11.87 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 2.62 AU - 4.24 AU

Year: 4236 Days

Day: 12 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,724,072 km

• M1: 142,268 km (0.114 R)
• M2: 444,006 km (0.089 R)
• M3: 2,292,587 km (0.062 R)
• M4: 3,188,828 km (0.111 R)
• M5: 8,431,486 km (0.119 R)
• M6: 8,936,229 km (0.086 R)
• M7: 9,297,358 km (0.112 R)
• M8: 9,626,473 km (0.104 R)
• M9: 10,527,651 km (0.097 R)
• M10: 11,158,954 km (0.113 R)
• M11: 15,260,628 km (0.109 R)
• M12: 17,334,952 km (0.076 R)
• M13: 17,771,329 km (0.093 R)
• M14: 22,107,274 km (0.091 R)
• M15: 24,208,227 km (0.095 R)
• M16: 25,307,173 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 790.6

Radius: 4.6

Gravity: 37.36 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 5.51 AU - 6.91 AU

Year: 10320 Days

Day: 18.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,724,072 km

• M1: 76,295 km (0.053 R)
• M2: 226,790 km (0.055 R)
• M3: 425,905 km (0.03 R)
• M4: 1,044,492 km (0.116 R)
• M5: 1,691,054 km (0.103 R)
• M6: 1,866,981 km (0.116 R)
• M7: 3,006,917 km (0.079 R)
• M8: 3,194,064 km (0.07 R)
• M9: 3,966,588 km (0.094 R)
• M10: 4,485,991 km (0.055 R)
• M11: 4,668,800 km (0.079 R)
• M12: 5,213,935 km (0.087 R)
• M13: 8,825,078 km (0.031 R)
• M14: 9,406,265 km (0.092 R)
• M15: 9,756,773 km (0.111 R)
• M16: 10,752,197 km (0.052 R)
• M17: 11,584,560 km (0.087 R)
• M18: 12,045,471 km (0.113 R)
• M19: 17,423,814 km (0.055 R)
• M20: 19,601,959 km (0.066 R)
• M21: 20,173,572 km (0.087 R)
• M22: 21,435,729 km (0.099 R)
• M23: 26,218,373 km (0.059 R)
• M24: 33,598,186 km (0.056 R)
• M25: 36,091,982 km (0.072 R)
• M26: 37,821,334 km (0.105 R)
• M27: 39,734,690 km (0.113 R)
• M28: 41,577,886 km (0.103 R)
• M29: 45,150,582 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425.3

Radius: 7.3

Gravity: 7.98 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 7.45 AU - 10.17 AU

Year: 17438 Days

Day: 19.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 66,724,072 km

• M1: 90,806 km (0.059 R)
• M2: 755,619 km (0.112 R)
• M3: 1,094,907 km (0.073 R)
• M4: 1,671,906 km (0.045 R)
• M5: 3,492,661 km (0.092 R)
• M6: 3,764,032 km (0.085 R)
• M7: 4,137,728 km (0.12 R)
• M8: 4,567,821 km (0.047 R)
• M9: 5,699,380 km (0.069 R)
• M10: 5,999,922 km (0.097 R)
• M11: 6,964,978 km (0.074 R)
• M12: 7,845,361 km (0.114 R)
• M13: 10,039,812 km (0.077 R)
• M14: 12,177,566 km (0.096 R)
• M15: 15,164,886 km (0.092 R)
• M16: 15,452,114 km (0.118 R)
• M17: 15,889,538 km (0.063 R)
• M18: 16,260,391 km (0.113 R)
• M19: 24,549,459 km (0.111 R)
• M20: 26,572,621 km (0.105 R)
• M21: 28,269,210 km (0.085 R)
• M22: 31,178,291 km (0.106 R)
• M23: 31,526,255 km (0.084 R)
• M24: 31,759,628 km (0.094 R)
• M25: 34,527,637 km (0.113 R)
• M26: 36,417,058 km (0.06 R)
• M27: 39,853,621 km (0.1 R)
• M28: 40,814,488 km (0.091 R)
• M29: 42,072,456 km (0.095 R)
• M30: 42,639,731 km (0.113 R)
• M31: 45,553,000 km (0.025 R)
• M32: 46,001,196 km (0.07 R)
• M33: 48,441,137 km (0.115 R)
• M34: 49,535,146 km (0.102 R)
• M35: 51,287,685 km (0.049 R)
• M36: 53,909,837 km (0.09 R)
• M37: 57,659,358 km (0.045 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 483.1

Radius: 4

Gravity: 30.19 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 7.86 AU - 11.16 AU

Year: 19557 Days

Day: 18.7 Hours

Environment

Temp: -243 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,724,072 km

• M1: 50,714 km (0.112 R)
• M2: 189,541 km (0.106 R)
• M3: 458,368 km (0.119 R)
• M4: 583,132 km (0.044 R)
• M5: 971,489 km (0.027 R)
• M6: 1,194,838 km (0.044 R)
• M7: 1,497,774 km (0.111 R)
• M8: 2,578,918 km (0.112 R)
• M9: 5,846,285 km (0.102 R)
• M10: 6,371,673 km (0.083 R)
• M11: 8,585,721 km (0.07 R)
• M12: 9,263,399 km (0.075 R)
• M13: 9,587,877 km (0.053 R)
• M14: 10,490,401 km (0.061 R)
• M15: 11,264,121 km (0.063 R)
• M16: 16,880,773 km (0.12 R)
• M17: 22,048,183 km (0.074 R)
• M18: 25,774,516 km (0.031 R)
• M19: 32,179,400 km (0.095 R)
• M20: 34,187,003 km (0.077 R)
• M21: 34,315,208 km (0.118 R)
• M22: 40,996,100 km (0.095 R)
• M23: 43,052,921 km (0.097 R)
• M24: 43,352,117 km (0.051 R)
• M25: 47,849,777 km (0.114 R)
• M26: 49,143,050 km (0.1 R)
• M27: 53,334,483 km (0.108 R)
• M28: 55,605,229 km (0.12 R)
• M29: 64,157,440 km (0.104 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: 498 - 15,710 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit