🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.1

Radius: 14.1

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.98 AU - 1.18 AU

Year: 775 Days

Day: 11.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,957,391 km

• M1: 175,478 km (0.055 R)
• M2: 919,877 km (0.084 R)
• M3: 1,566,589 km (0.118 R)
• M4: 3,388,093 km (0.03 R)
• M5: 3,827,910 km (0.039 R)
• M6: 4,508,581 km (0.098 R)
• M7: 5,367,721 km (0.099 R)
• M8: 6,149,669 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.3

Radius: 15

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.29 AU - 1.31 AU

Year: 1023 Days

Day: 9.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 59 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 56,957,391 km

• M1: 189,541 km (0.097 R)
• M2: 687,103 km (0.117 R)
• M3: 1,658,143 km (0.071 R)
• M4: 2,348,387 km (0.061 R)
• M5: 2,914,316 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.4

Radius: 11.3

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.43 AU - 1.45 AU

Year: 1193 Days

Day: 5.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,957,391 km

• M1: 140,472 km (0.12 R)
• M2: 541,993 km (0.093 R)
• M3: 1,409,810 km (0.045 R)
• M4: 2,206,269 km (0.072 R)
• M5: 3,498,496 km (0.067 R)
• M6: 4,030,466 km (0.088 R)
• M7: 5,472,739 km (0.101 R)
• M8: 6,210,107 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.6

Radius: 14.5

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.76 AU - 2.22 AU

Year: 1938 Days

Day: 12.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 79.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,957,391 km

• M1: 181,013 km (0.099 R)
• M2: 647,310 km (0.063 R)
• M3: 1,147,116 km (0.075 R)
• M4: 1,673,551 km (0.099 R)
• M5: 2,230,055 km (0.09 R)
• M6: 3,315,687 km (0.093 R)
• M7: 4,151,341 km (0.112 R)
• M8: 5,883,983 km (0.089 R)
• M9: 6,641,846 km (0.104 R)
• M10: 7,602,863 km (0.085 R)
• M11: 8,088,158 km (0.086 R)
• M12: 10,343,047 km (0.118 R)
• M13: 11,047,803 km (0.112 R)
• M14: 11,897,519 km (0.109 R)
• M15: 13,686,111 km (0.097 R)
• M16: 14,710,407 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.2

Radius: 10.4

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.99 AU - 2.35 AU

Year: 2206 Days

Day: 12.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,957,391 km

• M1: 130,150 km (0.111 R)
• M2: 483,949 km (0.062 R)
• M3: 848,968 km (0.08 R)
• M4: 1,346,680 km (0.081 R)
• M5: 1,692,999 km (0.119 R)
• M6: 2,456,247 km (0.116 R)
• M7: 2,966,825 km (0.118 R)
• M8: 4,021,640 km (0.067 R)
• M9: 4,792,966 km (0.065 R)
• M10: 5,886,676 km (0.082 R)
• M11: 6,431,212 km (0.072 R)
• M12: 6,829,741 km (0.048 R)
• M13: 7,165,588 km (0.102 R)
• M14: 7,648,790 km (0.043 R)
• M15: 9,577,405 km (0.065 R)
• M16: 12,988,985 km (0.096 R)
• M17: 13,505,995 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 142.7

Radius: 5.1

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 5.08 AU - 8.2 AU

Year: 11810 Days

Day: 15.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,957,391 km

• M1: 65,075 km (0.077 R)
• M2: 230,381 km (0.069 R)
• M3: 659,727 km (0.095 R)
• M4: 1,141,133 km (0.079 R)
• M5: 1,761,216 km (0.049 R)
• M6: 2,263,266 km (0.036 R)
• M7: 4,780,550 km (0.115 R)
• M8: 5,392,704 km (0.107 R)
• M9: 5,808,586 km (0.113 R)
• M10: 6,907,382 km (0.083 R)
• M11: 7,290,652 km (0.037 R)
• M12: 14,027,344 km (0.118 R)
• M13: 17,342,432 km (0.107 R)
• M14: 17,790,328 km (0.093 R)
• M15: 18,180,480 km (0.048 R)
• M16: 18,910,368 km (0.092 R)
• M17: 20,287,117 km (0.095 R)
• M18: 21,435,729 km (0.075 R)
• M19: 23,393,367 km (0.113 R)
• M20: 25,714,079 km (0.045 R)
• M21: 27,315,075 km (0.066 R)
• M22: 31,181,432 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 157.4

Radius: 4.3

Gravity: 8.51 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 6.67 AU - 6.77 AU

Year: 12024 Days

Day: 19.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 56,957,391 km

• M1: 53,556 km (0.102 R)
• M2: 194,328 km (0.075 R)
• M3: 396,883 km (0.12 R)
• M4: 577,597 km (0.025 R)
• M5: 820,694 km (0.052 R)
• M6: 1,012,478 km (0.094 R)
• M7: 1,402,779 km (0.071 R)
• M8: 1,561,503 km (0.108 R)
• M9: 3,650,786 km (0.118 R)
• M10: 4,877,040 km (0.04 R)
• M11: 5,100,539 km (0.047 R)
• M12: 7,952,772 km (0.081 R)
• M13: 10,247,005 km (0.109 R)
• M14: 11,816,437 km (0.113 R)
• M15: 12,168,740 km (0.101 R)
• M16: 15,009,005 km (0.085 R)
• M17: 15,541,573 km (0.047 R)
• M18: 19,909,681 km (0.073 R)
• M19: 20,265,126 km (0.113 R)
• M20: 20,915,577 km (0.086 R)
• M21: 22,030,231 km (0.094 R)
• M22: 26,799,711 km (0.093 R)
• M23: 30,397,390 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 445.6

Radius: 4.8

Gravity: 19.34 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 6.12 AU - 10.18 AU

Year: 16060 Days

Day: 22.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 56,957,391 km

• M1: 65,225 km (0.089 R)
• M2: 219,161 km (0.1 R)
• M3: 1,118,543 km (0.107 R)
• M4: 1,550,283 km (0.067 R)
• M5: 1,821,204 km (0.115 R)
• M6: 1,994,888 km (0.104 R)
• M7: 3,256,297 km (0.034 R)
• M8: 3,756,103 km (0.114 R)
• M9: 4,939,572 km (0.083 R)
• M10: 5,454,638 km (0.06 R)
• M11: 6,119,151 km (0.052 R)
• M12: 6,312,881 km (0.106 R)
• M13: 6,550,891 km (0.065 R)
• M14: 8,530,519 km (0.119 R)
• M15: 9,945,117 km (0.12 R)
• M16: 10,159,341 km (0.053 R)
• M17: 13,554,465 km (0.079 R)
• M18: 16,417,618 km (0.066 R)
• M19: 17,326,126 km (0.081 R)
• M20: 18,108,523 km (0.104 R)
• M21: 18,347,730 km (0.106 R)
• M22: 19,827,552 km (0.086 R)
• M23: 26,136,693 km (0.11 R)
• M24: 26,750,194 km (0.096 R)
• M25: 28,973,368 km (0.083 R)
• M26: 29,962,658 km (0.117 R)
• M27: 31,892,620 km (0.115 R)
• M28: 34,267,187 km (0.111 R)
• M29: 35,125,430 km (0.1 R)
• M30: 36,629,936 km (0.032 R)
• M31: 39,231,742 km (0.092 R)
• M32: 43,219,423 km (0.114 R)
• M33: 44,800,074 km (0.11 R)
• M34: 46,717,321 km (0.117 R)
• M35: 47,923,827 km (0.111 R)
• M36: 48,076,118 km (0.057 R)
• M37: 54,600,979 km (0.081 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 363 - 13,211 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit