🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.57 AU - 0.63 AU

Year: 305 Days

Day: 24.5 Hours

Environment

Temp: -121 °C

Axial Tilt: 63.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,685,553 km

• M1: 42,037 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.6

Radius: 10.3

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.63 AU - 0.91 AU

Year: 443 Days

Day: 9.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,685,553 km

• M1: 128,056 km (0.096 R)
• M2: 475,871 km (0.086 R)
• M3: 825,182 km (0.081 R)
• M4: 1,222,663 km (0.079 R)
• M5: 1,696,589 km (0.113 R)
• M6: 2,354,371 km (0.109 R)
• M7: 2,773,844 km (0.099 R)
• M8: 3,220,094 km (0.114 R)
• M9: 3,625,953 km (0.113 R)
• M10: 5,928,713 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.6

Radius: 8.6

Gravity: 7.54 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.27 AU - 2.81 AU

Year: 2656 Days

Day: 5.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 107.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 44,685,553 km

• M1: 110,553 km (0.036 R)
• M2: 401,072 km (0.107 R)
• M3: 848,818 km (0.104 R)
• M4: 1,131,708 km (0.092 R)
• M5: 1,907,971 km (0.062 R)
• M6: 2,350,183 km (0.069 R)
• M7: 2,691,864 km (0.061 R)
• M8: 3,787,369 km (0.073 R)
• M9: 5,155,591 km (0.093 R)
• M10: 5,887,424 km (0.049 R)
• M11: 6,798,475 km (0.055 R)
• M12: 7,170,675 km (0.114 R)
• M13: 7,769,814 km (0.101 R)
• M14: 10,886,686 km (0.043 R)
• M15: 11,159,403 km (0.098 R)
• M16: 11,436,757 km (0.066 R)
• M17: 11,963,940 km (0.1 R)
• M18: 12,338,234 km (0.117 R)
• M19: 13,198,272 km (0.101 R)
• M20: 14,656,702 km (0.04 R)
• M21: 15,230,410 km (0.108 R)
• M22: 17,409,452 km (0.074 R)
• M23: 18,107,177 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.9

Radius: 11.9

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.51 AU - 4.18 AU

Year: 4004 Days

Day: 14.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,685,553 km

• M1: 148,102 km (0.098 R)
• M2: 673,041 km (0.087 R)
• M3: 1,137,692 km (0.03 R)
• M4: 1,591,123 km (0.078 R)
• M5: 2,295,729 km (0.117 R)
• M6: 2,839,816 km (0.105 R)
• M7: 3,351,291 km (0.102 R)
• M8: 4,188,591 km (0.086 R)
• M9: 6,828,993 km (0.113 R)
• M10: 9,213,284 km (0.103 R)
• M11: 10,635,810 km (0.074 R)
• M12: 12,866,614 km (0.092 R)
• M13: 14,640,246 km (0.053 R)
• M14: 16,571,255 km (0.097 R)
• M15: 20,933,380 km (0.032 R)
• M16: 22,307,885 km (0.107 R)
• M17: 23,017,428 km (0.098 R)
• M18: 25,928,752 km (0.084 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 391.5

Radius: 3.8

Gravity: 27.11 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 5.95 AU - 7.57 AU

Year: 11530 Days

Day: 22 Hours

Environment

Temp: -232 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 44,685,553 km

• M1: 49,517 km (0.118 R)
• M2: 183,257 km (0.097 R)
• M3: 531,820 km (0.107 R)
• M4: 1,146,219 km (0.08 R)
• M5: 1,387,071 km (0.025 R)
• M6: 1,689,858 km (0.083 R)
• M7: 2,119,951 km (0.074 R)
• M8: 2,296,477 km (0.12 R)
• M9: 3,036,538 km (0.045 R)
• M10: 3,261,234 km (0.096 R)
• M11: 4,108,855 km (0.067 R)
• M12: 4,525,784 km (0.069 R)
• M13: 5,674,247 km (0.092 R)
• M14: 6,737,738 km (0.09 R)
• M15: 7,119,961 km (0.078 R)
• M16: 7,679,158 km (0.109 R)
• M17: 7,927,490 km (0.117 R)
• M18: 9,343,733 km (0.067 R)
• M19: 9,626,922 km (0.059 R)
• M20: 10,160,837 km (0.066 R)
• M21: 10,714,199 km (0.083 R)
• M22: 11,340,416 km (0.118 R)
• M23: 14,462,823 km (0.087 R)
• M24: 15,618,915 km (0.049 R)
• M25: 16,904,709 km (0.088 R)
• M26: 17,823,988 km (0.081 R)
• M27: 19,607,793 km (0.081 R)
• M28: 24,137,317 km (0.116 R)
• M29: 25,483,698 km (0.085 R)
• M30: 27,740,681 km (0.103 R)
• M31: 30,025,340 km (0.114 R)
• M32: 31,475,542 km (0.105 R)
• M33: 35,418,044 km (0.057 R)
• M34: 37,389,145 km (0.09 R)
• M35: 39,066,287 km (0.092 R)
• M36: 40,046,752 km (0.105 R)
• M37: 41,295,445 km (0.056 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 826.2

Radius: 4.2

Gravity: 46.84 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 7.2 AU - 8.84 AU

Year: 14899 Days

Day: 19.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 44,685,553 km

• M1: 55,650 km (0.102 R)
• M2: 208,689 km (0.032 R)
• M3: 819,946 km (0.111 R)
• M4: 983,157 km (0.1 R)
• M5: 1,346,830 km (0.092 R)
• M6: 1,995,486 km (0.112 R)
• M7: 2,211,206 km (0.067 R)
• M8: 2,464,176 km (0.059 R)
• M9: 2,620,356 km (0.062 R)
• M10: 3,052,993 km (0.025 R)
• M11: 3,644,354 km (0.092 R)
• M12: 5,230,091 km (0.081 R)
• M13: 6,568,095 km (0.102 R)
• M14: 8,216,962 km (0.076 R)
• M15: 8,668,598 km (0.096 R)
• M16: 10,179,537 km (0.071 R)
• M17: 10,700,287 km (0.112 R)
• M18: 12,695,922 km (0.067 R)
• M19: 14,779,970 km (0.103 R)
• M20: 15,148,131 km (0.1 R)
• M21: 18,570,930 km (0.05 R)
• M22: 18,741,621 km (0.076 R)
• M23: 18,913,360 km (0.115 R)
• M24: 20,325,115 km (0.08 R)
• M25: 21,428,997 km (0.118 R)
• M26: 21,616,892 km (0.066 R)
• M27: 21,900,530 km (0.118 R)
• M28: 27,886,240 km (0.113 R)
• M29: 30,297,010 km (0.12 R)
• M30: 32,718,700 km (0.078 R)
• M31: 33,092,695 km (0.075 R)
• M32: 34,232,032 km (0.081 R)
• M33: 34,746,649 km (0.116 R)
• M34: 37,261,688 km (0.095 R)
• M35: 40,037,327 km (0.094 R)
• M36: 42,354,748 km (0.105 R)
• M37: 46,308,769 km (0.088 R)
• M38: 46,780,152 km (0.067 R)
• M39: 48,374,865 km (0.05 R)
• M40: 52,349,232 km (0.098 R)
• M41: 61,695,508 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.7

Radius: 6.6

Gravity: 13.79 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 7.92 AU - 9.3 AU

Year: 16573 Days

Day: 21 Hours

Environment

Temp: -223 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 44,685,553 km

• M1: 85,271 km (0.109 R)
• M2: 450,140 km (0.079 R)
• M3: 684,859 km (0.106 R)
• M4: 914,941 km (0.112 R)
• M5: 3,126,296 km (0.112 R)
• M6: 3,801,581 km (0.063 R)
• M7: 4,189,040 km (0.084 R)
• M8: 4,408,500 km (0.113 R)
• M9: 5,775,226 km (0.075 R)
• M10: 6,534,136 km (0.118 R)
• M11: 8,248,827 km (0.112 R)
• M12: 9,367,968 km (0.062 R)
• M13: 9,798,960 km (0.11 R)
• M14: 11,052,440 km (0.094 R)
• M15: 12,732,724 km (0.095 R)
• M16: 12,995,417 km (0.114 R)
• M17: 14,863,745 km (0.09 R)
• M18: 16,668,793 km (0.078 R)
• M19: 17,141,971 km (0.076 R)
• M20: 18,783,957 km (0.044 R)
• M21: 21,531,771 km (0.11 R)
• M22: 22,187,459 km (0.077 R)
• M23: 23,735,946 km (0.108 R)
• M24: 24,841,325 km (0.089 R)
• M25: 26,297,361 km (0.11 R)
• M26: 26,938,537 km (0.091 R)
• M27: 28,030,153 km (0.069 R)
• M28: 36,642,203 km (0.109 R)
• M29: 44,112,074 km (0.085 R)
• M30: 44,562,962 km (0.056 R)
• M31: 47,489,694 km (0.105 R)
• M32: 47,805,047 km (0.114 R)
• M33: 55,974,586 km (0.039 R)
• M34: 56,857,064 km (0.06 R)
• M35: 58,831,158 km (0.111 R)
• M36: 59,560,148 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 181.1

Radius: 6.6

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.72 AU - 10.14 AU

Year: 17506 Days

Day: 23.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 44,685,553 km

• M1: 89,908 km (0.085 R)
• M2: 305,180 km (0.058 R)
• M3: 746,045 km (0.109 R)
• M4: 1,262,456 km (0.12 R)
• M5: 2,010,895 km (0.095 R)
• M6: 2,286,903 km (0.098 R)
• M7: 2,707,572 km (0.112 R)
• M8: 2,979,690 km (0.037 R)
• M9: 4,423,609 km (0.085 R)
• M10: 5,491,887 km (0.102 R)
• M11: 6,210,107 km (0.106 R)
• M12: 8,212,624 km (0.065 R)
• M13: 9,289,280 km (0.076 R)
• M14: 10,206,165 km (0.076 R)
• M15: 12,387,900 km (0.107 R)
• M16: 14,106,780 km (0.05 R)
• M17: 15,644,796 km (0.053 R)
• M18: 16,046,167 km (0.119 R)
• M19: 16,317,537 km (0.078 R)
• M20: 16,522,935 km (0.082 R)
• M21: 18,303,449 km (0.078 R)
• M22: 18,749,101 km (0.025 R)
• M23: 27,089,332 km (0.105 R)
• M24: 30,478,173 km (0.114 R)
• M25: 30,894,503 km (0.115 R)
• M26: 33,916,081 km (0.101 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 340 - 12,232 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit