🌌 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: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.44 AU - 0.72 AU

Year: 290 Days

Day: 42.1 Hours

Environment

Temp: -119 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 91,949,513 km

• M1: 39,045 km (0.118 R)
• M2: 486,343 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.8

Radius: 10.2

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.66 AU - 0.92 AU

Year: 461 Days

Day: 14.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 91,949,513 km

• M1: 130,449 km (0.091 R)
• M2: 734,675 km (0.06 R)
• M3: 1,071,869 km (0.116 R)
• M4: 1,400,984 km (0.12 R)
• M5: 2,238,882 km (0.044 R)
• M6: 2,943,787 km (0.111 R)
• M7: 3,662,006 km (0.046 R)
• M8: 4,586,671 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.6

Radius: 12.7

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.73 AU - 1.03 AU

Year: 542 Days

Day: 10.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 148.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 91,949,513 km

• M1: 158,424 km (0.076 R)
• M2: 555,606 km (0.044 R)
• M3: 979,567 km (0.06 R)
• M4: 1,426,864 km (0.094 R)
• M5: 1,863,541 km (0.063 R)
• M6: 2,417,950 km (0.109 R)
• M7: 3,016,192 km (0.106 R)
• M8: 4,205,495 km (0.106 R)
• M9: 4,802,391 km (0.04 R)
• M10: 5,263,003 km (0.118 R)
• M11: 5,685,916 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 454.4

Radius: 11.6

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.18 AU - 1.32 AU

Year: 917 Days

Day: 6.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 91,949,513 km

• M1: 144,362 km (0.108 R)
• M2: 610,060 km (0.107 R)
• M3: 1,045,390 km (0.062 R)
• M4: 1,707,959 km (0.116 R)
• M5: 2,078,363 km (0.11 R)
• M6: 2,725,374 km (0.104 R)
• M7: 4,033,607 km (0.031 R)
• M8: 4,551,814 km (0.1 R)
• M9: 4,973,680 km (0.111 R)
• M10: 5,533,176 km (0.091 R)
• M11: 5,955,491 km (0.086 R)
• M12: 6,608,187 km (0.103 R)
• M13: 7,017,786 km (0.098 R)
• M14: 7,490,365 km (0.094 R)
• M15: 8,226,836 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.7

Radius: 9.7

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 3 AU - 3.22 AU

Year: 3598 Days

Day: 8.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 59.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 91,949,513 km

• M1: 121,025 km (0.088 R)
• M2: 598,541 km (0.064 R)
• M3: 1,350,270 km (0.085 R)
• M4: 2,006,257 km (0.094 R)
• M5: 2,601,058 km (0.074 R)
• M6: 3,890,442 km (0.085 R)
• M7: 5,744,708 km (0.079 R)
• M8: 6,942,688 km (0.034 R)
• M9: 7,670,182 km (0.076 R)
• M10: 12,982,552 km (0.036 R)
• M11: 13,465,304 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.8

Radius: 9.9

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 3.03 AU - 4.37 AU

Year: 4669 Days

Day: 8.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 173.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 91,949,513 km

• M1: 123,119 km (0.053 R)
• M2: 469,737 km (0.032 R)
• M3: 963,859 km (0.101 R)
• M4: 1,329,476 km (0.1 R)
• M5: 2,381,897 km (0.033 R)
• M6: 3,739,049 km (0.048 R)
• M7: 4,100,478 km (0.103 R)
• M8: 4,737,615 km (0.092 R)
• M9: 5,107,271 km (0.113 R)
• M10: 5,995,135 km (0.095 R)
• M11: 8,603,822 km (0.102 R)
• M12: 10,287,247 km (0.107 R)
• M13: 11,415,664 km (0.084 R)
• M14: 17,686,807 km (0.085 R)
• M15: 19,169,471 km (0.064 R)
• M16: 20,111,489 km (0.07 R)
• M17: 21,942,417 km (0.11 R)
• M18: 22,380,290 km (0.068 R)
• M19: 28,013,548 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655.1

Radius: 13.7

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 4.26 AU - 4.78 AU

Year: 6304 Days

Day: 7.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 91,949,513 km

• M1: 173,534 km (0.107 R)
• M2: 607,367 km (0.068 R)
• M3: 1,313,170 km (0.117 R)
• M4: 1,795,773 km (0.09 R)
• M5: 2,364,993 km (0.051 R)
• M6: 2,955,904 km (0.056 R)
• M7: 3,533,352 km (0.077 R)
• M8: 5,284,994 km (0.066 R)
• M9: 6,368,830 km (0.078 R)
• M10: 8,444,501 km (0.096 R)
• M11: 10,515,234 km (0.076 R)
• M12: 10,986,168 km (0.102 R)
• M13: 12,483,942 km (0.03 R)
• M14: 13,500,759 km (0.088 R)
• M15: 14,629,774 km (0.104 R)
• M16: 15,699,100 km (0.077 R)
• M17: 16,756,009 km (0.092 R)
• M18: 19,220,185 km (0.103 R)
• M19: 20,575,242 km (0.065 R)
• M20: 25,022,937 km (0.11 R)
• M21: 26,120,536 km (0.101 R)
• M22: 28,411,478 km (0.059 R)
• M23: 30,168,355 km (0.103 R)
• M24: 31,898,604 km (0.118 R)
• M25: 33,795,805 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 137

Radius: 4.1

Gravity: 8.15 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 7.02 AU - 8.92 AU

Year: 14760 Days

Day: 19.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 91,949,513 km

• M1: 74,949 km (0.067 R)
• M2: 205,248 km (0.051 R)
• M3: 458,817 km (0.117 R)
• M4: 718,668 km (0.078 R)
• M5: 864,825 km (0.102 R)
• M6: 1,206,956 km (0.084 R)
• M7: 1,815,520 km (0.106 R)
• M8: 2,443,831 km (0.034 R)
• M9: 5,036,512 km (0.079 R)
• M10: 6,596,069 km (0.071 R)
• M11: 7,503,829 km (0.116 R)
• M12: 9,211,489 km (0.11 R)
• M13: 10,201,677 km (0.051 R)
• M14: 10,770,747 km (0.07 R)
• M15: 14,696,345 km (0.09 R)
• M16: 17,139,428 km (0.109 R)
• M17: 18,147,119 km (0.116 R)
• M18: 19,479,139 km (0.105 R)
• M19: 20,800,088 km (0.046 R)
• M20: 24,112,035 km (0.057 R)
• M21: 30,772,132 km (0.115 R)
• M22: 31,756,786 km (0.111 R)
• M23: 32,156,362 km (0.119 R)
• M24: 32,660,656 km (0.076 R)
• M25: 34,942,173 km (0.047 R)
• M26: 35,689,863 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 494.4

Radius: 7.5

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 8.9 AU - 11.14 AU

Year: 20807 Days

Day: 24.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 91,949,513 km

• M1: 94,845 km (0.096 R)
• M2: 364,121 km (0.091 R)
• M3: 760,107 km (0.093 R)
• M4: 1,199,925 km (0.091 R)
• M5: 1,926,671 km (0.099 R)
• M6: 2,218,686 km (0.068 R)
• M7: 2,473,601 km (0.095 R)
• M8: 2,992,107 km (0.105 R)
• M9: 3,358,323 km (0.077 R)
• M10: 4,439,167 km (0.04 R)
• M11: 5,315,212 km (0.108 R)
• M12: 7,175,163 km (0.099 R)
• M13: 7,499,192 km (0.103 R)
• M14: 7,784,475 km (0.069 R)
• M15: 8,377,182 km (0.112 R)
• M16: 10,162,183 km (0.102 R)
• M17: 13,397,686 km (0.111 R)
• M18: 14,686,621 km (0.061 R)
• M19: 15,285,312 km (0.108 R)
• M20: 16,213,567 km (0.085 R)
• M21: 16,531,163 km (0.079 R)
• M22: 18,698,088 km (0.066 R)
• M23: 21,904,569 km (0.102 R)
• M24: 23,688,224 km (0.108 R)
• M25: 26,323,241 km (0.073 R)
• M26: 27,542,165 km (0.073 R)
• M27: 27,881,004 km (0.081 R)
• M28: 28,567,060 km (0.072 R)
• M29: 31,670,767 km (0.105 R)
• M30: 34,992,139 km (0.083 R)
• M31: 38,257,561 km (0.115 R)
• M32: 48,931,818 km (0.097 R)
• M33: 51,965,812 km (0.11 R)
• M34: 53,880,366 km (0.112 R)
• M35: 63,373,996 km (0.041 R)
• M36: 66,567,313 km (0.072 R)
• M37: 67,177,821 km (0.116 R)
• M38: 67,792,070 km (0.092 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 990.3

Radius: 3

Gravity: 110.03 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 8.92 AU - 11.94 AU

Year: 22097 Days

Day: 15.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 102 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 91,949,513 km

• M1: 37,250 km (0.108 R)
• M2: 188,344 km (0.045 R)
• M3: 420,819 km (0.077 R)
• M4: 750,832 km (0.119 R)
• M5: 1,652,757 km (0.092 R)
• M6: 1,747,752 km (0.111 R)
• M7: 4,254,563 km (0.07 R)
• M8: 7,396,119 km (0.093 R)
• M9: 8,136,778 km (0.109 R)
• M10: 8,581,383 km (0.082 R)
• M11: 9,763,804 km (0.119 R)
• M12: 10,393,910 km (0.052 R)
• M13: 10,784,660 km (0.078 R)
• M14: 10,983,625 km (0.096 R)
• M15: 13,413,394 km (0.039 R)
• M16: 14,671,512 km (0.065 R)
• M17: 16,969,335 km (0.048 R)
• M18: 19,106,790 km (0.094 R)
• M19: 22,262,108 km (0.108 R)
• M20: 22,476,781 km (0.071 R)
• M21: 26,341,791 km (0.04 R)
• M22: 26,945,120 km (0.112 R)
• M23: 30,362,833 km (0.119 R)
• M24: 30,626,873 km (0.099 R)
• M25: 33,633,640 km (0.109 R)
• M26: 38,195,628 km (0.076 R)
• M27: 43,990,750 km (0.041 R)
• M28: 48,522,219 km (0.047 R)
• M29: 49,610,394 km (0.032 R)
• M30: 49,976,759 km (0.055 R)
• M31: 65,270,299 km (0.098 R)
• M32: 68,164,270 km (0.102 R)
• M33: 71,375,089 km (0.037 R)
• M34: 72,545,842 km (0.115 R)
• M35: 74,206,229 km (0.053 R)
• M36: 78,096,372 km (0.082 R)
• M37: 78,591,989 km (0.11 R)
• M38: 81,101,494 km (0.09 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 487 - 19,317 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit