🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.57 AU - 0.77 AU

Year: 354 Days

Day: 27.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 42.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,267,338 km

• M1: 71,209 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.2

Radius: 10

Gravity: 9.64 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.93 AU - 1.27 AU

Year: 745 Days

Day: 8.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 82,267,338 km

• M1: 124,316 km (0.045 R)
• M2: 467,793 km (0.11 R)
• M3: 819,796 km (0.082 R)
• M4: 1,149,510 km (0.07 R)
• M5: 1,720,226 km (0.069 R)
• M6: 2,101,401 km (0.089 R)
• M7: 2,773,993 km (0.042 R)
• M8: 3,627,599 km (0.032 R)
• M9: 3,958,659 km (0.087 R)
• M10: 4,510,376 km (0.114 R)
• M11: 5,242,957 km (0.119 R)
• M12: 6,032,085 km (0.074 R)
• M13: 6,433,756 km (0.105 R)
• M14: 7,012,400 km (0.068 R)
• M15: 7,576,983 km (0.075 R)
• M16: 7,970,126 km (0.067 R)
• M17: 8,931,292 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.7

Radius: 11.1

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.21 AU - 1.73 AU

Year: 1151 Days

Day: 6.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,267,338 km

• M1: 138,079 km (0.03 R)
• M2: 643,271 km (0.076 R)
• M3: 1,042,697 km (0.059 R)
• M4: 1,408,763 km (0.028 R)
• M5: 1,806,095 km (0.08 R)
• M6: 2,161,091 km (0.117 R)
• M7: 2,683,487 km (0.041 R)
• M8: 3,331,545 km (0.109 R)
• M9: 4,097,486 km (0.098 R)
• M10: 4,755,118 km (0.116 R)
• M11: 7,903,405 km (0.06 R)
• M12: 8,269,321 km (0.081 R)
• M13: 8,646,607 km (0.101 R)
• M14: 9,464,908 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.4

Radius: 9.7

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.77 AU - 2.51 AU

Year: 2021 Days

Day: 11.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,267,338 km

• M1: 126,410 km (0.117 R)
• M2: 721,959 km (0.1 R)
• M3: 1,274,424 km (0.119 R)
• M4: 1,821,354 km (0.108 R)
• M5: 2,138,202 km (0.051 R)
• M6: 2,572,784 km (0.027 R)
• M7: 3,096,676 km (0.105 R)
• M8: 3,450,774 km (0.119 R)
• M9: 3,977,658 km (0.083 R)
• M10: 4,597,741 km (0.046 R)
• M11: 5,860,796 km (0.071 R)
• M12: 8,644,363 km (0.097 R)
• M13: 9,483,159 km (0.119 R)
• M14: 10,410,815 km (0.061 R)
• M15: 11,247,666 km (0.102 R)
• M16: 12,646,705 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.9

Radius: 9.8

Gravity: 9.23 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.38 AU - 3.24 AU

Year: 3041 Days

Day: 9.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 82,267,338 km

• M1: 121,922 km (0.086 R)
• M2: 430,842 km (0.037 R)
• M3: 913,893 km (0.039 R)
• M4: 1,274,275 km (0.071 R)
• M5: 1,753,736 km (0.074 R)
• M6: 2,165,429 km (0.046 R)
• M7: 2,641,001 km (0.1 R)
• M8: 3,503,732 km (0.081 R)
• M9: 4,271,917 km (0.11 R)
• M10: 4,973,980 km (0.071 R)
• M11: 6,168,818 km (0.081 R)
• M12: 6,666,829 km (0.062 R)
• M13: 8,080,978 km (0.037 R)
• M14: 9,959,029 km (0.063 R)
• M15: 10,769,401 km (0.108 R)
• M16: 11,535,791 km (0.051 R)
• M17: 12,429,339 km (0.118 R)
• M18: 13,855,456 km (0.087 R)
• M19: 14,968,464 km (0.056 R)
• M20: 16,580,830 km (0.042 R)
• M21: 17,200,165 km (0.085 R)
• M22: 17,776,416 km (0.088 R)
• M23: 19,520,577 km (0.081 R)
• M24: 22,042,349 km (0.067 R)
• M25: 22,448,656 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278

Radius: 13.6

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 4.66 AU - 5.48 AU

Year: 7371 Days

Day: 11.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 82,267,338 km

• M1: 170,242 km (0.056 R)
• M2: 608,265 km (0.091 R)
• M3: 1,094,907 km (0.087 R)
• M4: 1,699,432 km (0.079 R)
• M5: 2,138,801 km (0.05 R)
• M6: 2,740,334 km (0.115 R)
• M7: 3,453,467 km (0.047 R)
• M8: 5,416,939 km (0.1 R)
• M9: 6,081,752 km (0.112 R)
• M10: 6,865,645 km (0.098 R)
• M11: 9,791,929 km (0.053 R)
• M12: 12,121,167 km (0.085 R)
• M13: 12,906,855 km (0.085 R)
• M14: 13,778,562 km (0.093 R)
• M15: 14,255,630 km (0.076 R)
• M16: 15,075,576 km (0.104 R)
• M17: 16,275,800 km (0.104 R)
• M18: 17,477,370 km (0.086 R)
• M19: 22,440,877 km (0.107 R)
• M20: 24,080,769 km (0.098 R)
• M21: 24,696,514 km (0.111 R)
• M22: 27,765,814 km (0.048 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.8

Radius: 10.7

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 4.58 AU - 6.04 AU

Year: 7901 Days

Day: 10.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 82,267,338 km

• M1: 155,582 km (0.073 R)
• M2: 571,015 km (0.025 R)
• M3: 2,140,446 km (0.084 R)
• M4: 5,946,216 km (0.071 R)
• M5: 7,146,589 km (0.104 R)
• M6: 9,805,991 km (0.105 R)
• M7: 12,909,698 km (0.119 R)
• M8: 13,431,196 km (0.106 R)
• M9: 14,909,522 km (0.1 R)
• M10: 20,480,397 km (0.069 R)
• M11: 22,658,692 km (0.066 R)
• M12: 24,907,148 km (0.105 R)
• M13: 30,755,228 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 712.4

Radius: 4.9

Gravity: 29.67 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 7.17 AU - 10.89 AU

Year: 17521 Days

Day: 21.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 82,267,338 km

• M1: 84,074 km (0.086 R)
• M2: 438,920 km (0.079 R)
• M3: 732,880 km (0.077 R)
• M4: 1,286,093 km (0.06 R)
• M5: 1,479,972 km (0.106 R)
• M6: 1,780,813 km (0.07 R)
• M7: 2,350,033 km (0.066 R)
• M8: 3,058,528 km (0.114 R)
• M9: 3,518,243 km (0.111 R)
• M10: 5,398,239 km (0.079 R)
• M11: 8,256,157 km (0.042 R)
• M12: 8,562,234 km (0.05 R)
• M13: 8,875,642 km (0.068 R)
• M14: 9,693,044 km (0.069 R)
• M15: 10,920,046 km (0.11 R)
• M16: 15,292,792 km (0.113 R)
• M17: 15,599,468 km (0.08 R)
• M18: 19,160,046 km (0.095 R)
• M19: 21,175,279 km (0.101 R)
• M20: 29,219,755 km (0.086 R)
• M21: 30,894,653 km (0.073 R)
• M22: 34,434,587 km (0.056 R)
• M23: 34,961,322 km (0.112 R)
• M24: 36,030,946 km (0.112 R)
• M25: 39,802,159 km (0.047 R)
• M26: 41,411,084 km (0.087 R)
• M27: 42,608,166 km (0.073 R)
• M28: 43,520,863 km (0.066 R)
• M29: 44,291,442 km (0.118 R)
• M30: 45,228,074 km (0.082 R)
• M31: 46,818,299 km (0.054 R)
• M32: 48,610,183 km (0.094 R)
• M33: 50,109,901 km (0.094 R)
• M34: 51,468,699 km (0.118 R)
• M35: 55,691,847 km (0.093 R)
• M36: 58,445,495 km (0.049 R)
• M37: 69,526,508 km (0.083 R)
• M38: 69,946,280 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 835.7

Radius: 5.6

Gravity: 26.65 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 8.59 AU - 11.37 AU

Year: 20357 Days

Day: 21.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 82,267,338 km

• M1: 69,713 km (0.101 R)
• M2: 246,088 km (0.038 R)
• M3: 607,218 km (0.106 R)
• M4: 1,448,706 km (0.084 R)
• M5: 1,816,717 km (0.033 R)
• M6: 2,356,166 km (0.101 R)
• M7: 3,300,279 km (0.088 R)
• M8: 5,530,035 km (0.084 R)
• M9: 8,280,990 km (0.101 R)
• M10: 11,231,808 km (0.103 R)
• M11: 12,941,113 km (0.047 R)
• M12: 14,121,590 km (0.113 R)
• M13: 15,859,768 km (0.109 R)
• M14: 16,107,352 km (0.116 R)
• M15: 16,357,480 km (0.117 R)
• M16: 18,726,961 km (0.114 R)
• M17: 21,516,363 km (0.056 R)
• M18: 23,168,073 km (0.116 R)
• M19: 30,115,099 km (0.119 R)
• M20: 31,914,761 km (0.078 R)
• M21: 32,309,550 km (0.09 R)
• M22: 33,921,168 km (0.1 R)
• M23: 39,377,600 km (0.104 R)
• M24: 42,471,284 km (0.108 R)
• M25: 43,430,057 km (0.105 R)
• M26: 46,561,440 km (0.059 R)
• M27: 47,409,809 km (0.112 R)
• M28: 48,614,820 km (0.106 R)
• M29: 50,193,826 km (0.114 R)
• M30: 52,169,864 km (0.052 R)
• M31: 55,894,252 km (0.103 R)
• M32: 56,467,811 km (0.12 R)
• M33: 65,760,232 km (0.062 R)
• M34: 67,042,735 km (0.075 R)
• M35: 67,690,194 km (0.071 R)
• M36: 68,559,807 km (0.1 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: 202 - 14,537 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit