🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

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: 751.7

Radius: 14.4

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.93 AU - 1.05 AU

Year: 636 Days

Day: 13.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,098,073 km

• M1: 179,069 km (0.107 R)
• M2: 725,400 km (0.119 R)
• M3: 1,194,240 km (0.113 R)
• M4: 1,650,364 km (0.041 R)
• M5: 2,104,094 km (0.073 R)
• M6: 3,453,018 km (0.105 R)
• M7: 4,061,881 km (0.085 R)
• M8: 4,533,414 km (0.118 R)
• M9: 5,407,514 km (0.062 R)
• M10: 6,675,955 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.8

Radius: 10.5

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.21 AU - 1.39 AU

Year: 957 Days

Day: 12.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,098,073 km

• M1: 130,599 km (0.087 R)
• M2: 619,036 km (0.08 R)
• M3: 1,061,546 km (0.048 R)
• M4: 1,847,683 km (0.114 R)
• M5: 2,233,347 km (0.113 R)
• M6: 2,578,319 km (0.035 R)
• M7: 3,036,837 km (0.117 R)
• M8: 5,559,655 km (0.11 R)
• M9: 6,221,177 km (0.104 R)
• M10: 8,470,680 km (0.071 R)
• M11: 8,901,522 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.8

Radius: 10.9

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.87 AU - 4.17 AU

Year: 4264 Days

Day: 9.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 72,098,073 km

• M1: 135,984 km (0.046 R)
• M2: 544,237 km (0.088 R)
• M3: 1,184,815 km (0.057 R)
• M4: 1,536,370 km (0.075 R)
• M5: 2,739,735 km (0.086 R)
• M6: 3,256,895 km (0.085 R)
• M7: 4,487,787 km (0.106 R)
• M8: 5,414,097 km (0.055 R)
• M9: 6,231,798 km (0.087 R)
• M10: 6,760,777 km (0.101 R)
• M11: 7,129,984 km (0.086 R)
• M12: 8,010,068 km (0.116 R)
• M13: 9,219,567 km (0.103 R)
• M14: 10,546,949 km (0.103 R)
• M15: 11,601,315 km (0.107 R)
• M16: 11,997,749 km (0.082 R)
• M17: 13,193,784 km (0.054 R)
• M18: 14,824,401 km (0.032 R)
• M19: 16,309,908 km (0.093 R)
• M20: 17,258,807 km (0.102 R)
• M21: 19,022,865 km (0.089 R)
• M22: 20,968,685 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.5

Radius: 11.3

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 3.63 AU - 3.77 AU

Year: 4595 Days

Day: 7.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,098,073 km

• M1: 140,472 km (0.119 R)
• M2: 803,041 km (0.035 R)
• M3: 1,663,379 km (0.087 R)
• M4: 2,301,414 km (0.069 R)
• M5: 3,078,275 km (0.095 R)
• M6: 3,827,611 km (0.12 R)
• M7: 4,573,656 km (0.118 R)
• M8: 5,306,835 km (0.066 R)
• M9: 6,146,079 km (0.072 R)
• M10: 7,738,847 km (0.047 R)
• M11: 8,230,426 km (0.056 R)
• M12: 9,044,986 km (0.081 R)
• M13: 9,432,595 km (0.069 R)
• M14: 10,035,025 km (0.103 R)
• M15: 10,877,860 km (0.112 R)
• M16: 15,538,432 km (0.101 R)
• M17: 18,090,272 km (0.061 R)
• M18: 22,991,846 km (0.094 R)
• M19: 25,668,900 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202

Radius: 13.6

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.51 AU - 4.55 AU

Year: 5224 Days

Day: 8.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,098,073 km

• M1: 220,806 km (0.103 R)
• M2: 886,816 km (0.1 R)
• M3: 1,331,271 km (0.061 R)
• M4: 1,789,639 km (0.043 R)
• M5: 2,554,384 km (0.11 R)
• M6: 3,105,203 km (0.083 R)
• M7: 4,691,688 km (0.095 R)
• M8: 5,857,804 km (0.065 R)
• M9: 6,342,052 km (0.108 R)
• M10: 7,484,082 km (0.093 R)
• M11: 7,958,158 km (0.097 R)
• M12: 8,553,707 km (0.051 R)
• M13: 10,955,950 km (0.034 R)
• M14: 12,729,283 km (0.076 R)
• M15: 13,223,853 km (0.072 R)
• M16: 16,099,274 km (0.114 R)
• M17: 17,821,894 km (0.088 R)
• M18: 18,555,821 km (0.084 R)
• M19: 19,133,867 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.6

Radius: 11.1

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 3.91 AU - 4.87 AU

Year: 5939 Days

Day: 6.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,098,073 km

• M1: 138,528 km (0.067 R)
• M2: 783,594 km (0.099 R)
• M3: 1,788,592 km (0.091 R)
• M4: 3,208,874 km (0.06 R)
• M5: 4,066,818 km (0.09 R)
• M6: 4,445,151 km (0.117 R)
• M7: 4,846,971 km (0.12 R)
• M8: 5,975,238 km (0.092 R)
• M9: 7,491,263 km (0.103 R)
• M10: 9,552,422 km (0.085 R)
• M11: 10,690,114 km (0.088 R)
• M12: 13,842,740 km (0.118 R)
• M13: 18,852,473 km (0.115 R)
• M14: 21,760,506 km (0.072 R)
• M15: 23,641,999 km (0.107 R)
• M16: 24,457,008 km (0.07 R)
• M17: 29,840,287 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 895.7

Radius: 5.7

Gravity: 27.57 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 6.38 AU - 10.16 AU

Year: 15356 Days

Day: 22.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 72,098,073 km

• M1: 71,059 km (0.116 R)
• M2: 270,473 km (0.101 R)
• M3: 1,108,371 km (0.04 R)
• M4: 1,382,584 km (0.089 R)
• M5: 1,650,513 km (0.099 R)
• M6: 2,127,132 km (0.062 R)
• M7: 2,419,446 km (0.105 R)
• M8: 3,241,935 km (0.067 R)
• M9: 4,333,551 km (0.102 R)
• M10: 4,839,192 km (0.069 R)
• M11: 5,535,121 km (0.113 R)
• M12: 5,847,332 km (0.098 R)
• M13: 7,778,491 km (0.084 R)
• M14: 10,564,751 km (0.067 R)
• M15: 10,984,373 km (0.099 R)
• M16: 12,376,082 km (0.12 R)
• M17: 12,708,040 km (0.054 R)
• M18: 14,167,367 km (0.12 R)
• M19: 16,361,669 km (0.091 R)
• M20: 17,497,715 km (0.062 R)
• M21: 19,745,722 km (0.11 R)
• M22: 22,570,280 km (0.059 R)
• M23: 23,568,696 km (0.07 R)
• M24: 35,620,749 km (0.106 R)
• M25: 39,921,239 km (0.108 R)
• M26: 44,245,964 km (0.036 R)
• M27: 47,081,591 km (0.087 R)
• M28: 48,053,080 km (0.09 R)
• M29: 52,417,598 km (0.063 R)
• M30: 55,230,786 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 597.3

Radius: 7.3

Gravity: 11.21 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 6.5 AU - 10.68 AU

Year: 16256 Days

Day: 22.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 72,098,073 km

• M1: 92,003 km (0.109 R)
• M2: 330,761 km (0.118 R)
• M3: 719,117 km (0.114 R)
• M4: 1,600,996 km (0.052 R)
• M5: 1,902,137 km (0.117 R)
• M6: 2,755,144 km (0.093 R)
• M7: 3,424,594 km (0.059 R)
• M8: 3,726,633 km (0.116 R)
• M9: 3,957,462 km (0.108 R)
• M10: 4,841,735 km (0.073 R)
• M11: 5,549,782 km (0.08 R)
• M12: 6,447,070 km (0.092 R)
• M13: 7,303,069 km (0.07 R)
• M14: 7,665,844 km (0.068 R)
• M15: 11,614,629 km (0.072 R)
• M16: 14,724,470 km (0.049 R)
• M17: 15,303,862 km (0.115 R)
• M18: 17,054,756 km (0.109 R)
• M19: 17,613,055 km (0.098 R)
• M20: 20,499,695 km (0.108 R)
• M21: 24,684,097 km (0.116 R)
• M22: 28,393,676 km (0.051 R)
• M23: 31,024,055 km (0.053 R)
• M24: 34,566,533 km (0.115 R)
• M25: 37,160,859 km (0.038 R)
• M26: 39,465,863 km (0.036 R)
• M27: 42,587,971 km (0.101 R)
• M28: 45,413,575 km (0.12 R)
• M29: 48,838,618 km (0.077 R)
• M30: 49,963,594 km (0.056 R)
• M31: 50,614,046 km (0.081 R)
• M32: 53,781,332 km (0.066 R)
• M33: 57,255,294 km (0.109 R)
• M34: 63,309,819 km (0.025 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 666.8

Radius: 3.6

Gravity: 51.45 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 7.71 AU - 11.15 AU

Year: 18697 Days

Day: 21.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 72,098,073 km

• M1: 53,257 km (0.083 R)
• M2: 169,345 km (0.11 R)
• M3: 486,343 km (0.045 R)
• M4: 791,223 km (0.114 R)
• M5: 1,003,951 km (0.093 R)
• M6: 1,225,506 km (0.037 R)
• M7: 1,431,652 km (0.062 R)
• M8: 1,894,507 km (0.091 R)
• M9: 2,233,197 km (0.114 R)
• M10: 2,851,784 km (0.054 R)
• M11: 3,434,618 km (0.082 R)
• M12: 3,548,461 km (0.059 R)
• M13: 4,519,202 km (0.089 R)
• M14: 5,733,638 km (0.101 R)
• M15: 6,016,677 km (0.096 R)
• M16: 6,480,131 km (0.046 R)
• M17: 7,477,949 km (0.077 R)
• M18: 7,914,027 km (0.094 R)
• M19: 8,573,753 km (0.09 R)
• M20: 10,176,096 km (0.108 R)
• M21: 11,078,321 km (0.109 R)
• M22: 12,429,339 km (0.119 R)
• M23: 13,671,450 km (0.108 R)
• M24: 15,453,161 km (0.071 R)
• M25: 21,138,778 km (0.09 R)
• M26: 24,971,475 km (0.076 R)
• M27: 26,052,020 km (0.062 R)
• M28: 32,050,446 km (0.082 R)
• M29: 32,939,506 km (0.052 R)
• M30: 35,569,886 km (0.034 R)
• M31: 35,976,044 km (0.093 R)
• M32: 36,248,611 km (0.11 R)
• M33: 38,478,816 km (0.088 R)
• M34: 45,238,247 km (0.064 R)
• M35: 45,396,820 km (0.027 R)
• M36: 49,147,089 km (0.069 R)
• M37: 61,821,470 km (0.084 R)
• M38: 63,593,905 km (0.082 R)
• M39: 67,860,736 km (0.098 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 14,829 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit