🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.57 AU - 0.65 AU

Year: 308 Days

Day: 19.2 Hours

Environment

Temp: -124 °C

Axial Tilt: 11.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,616,033 km

• M1: 153,637 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.2

Radius: 14.2

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.85 AU - 1.03 AU

Year: 588 Days

Day: 13.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,616,033 km

• M1: 176,525 km (0.095 R)
• M2: 773,271 km (0.095 R)
• M3: 1,232,686 km (0.041 R)
• M4: 1,721,722 km (0.046 R)
• M5: 2,199,388 km (0.047 R)
• M6: 2,934,811 km (0.084 R)
• M7: 3,693,571 km (0.093 R)
• M8: 4,349,558 km (0.074 R)
• M9: 4,932,990 km (0.032 R)
• M10: 5,426,364 km (0.07 R)
• M11: 6,180,486 km (0.114 R)
• M12: 7,108,891 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.9

Radius: 8.3

Gravity: 9.99 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.58 AU - 2.22 AU

Year: 1691 Days

Day: 6.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 134.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,616,033 km

• M1: 103,223 km (0.116 R)
• M2: 512,672 km (0.05 R)
• M3: 890,407 km (0.116 R)
• M4: 1,278,314 km (0.115 R)
• M5: 1,675,197 km (0.115 R)
• M6: 1,991,447 km (0.053 R)
• M7: 2,385,488 km (0.114 R)
• M8: 3,560,130 km (0.097 R)
• M9: 3,959,856 km (0.05 R)
• M10: 5,017,213 km (0.082 R)
• M11: 6,326,195 km (0.1 R)
• M12: 6,705,575 km (0.095 R)
• M13: 7,993,313 km (0.076 R)
• M14: 8,376,882 km (0.111 R)
• M15: 10,274,681 km (0.084 R)
• M16: 11,014,293 km (0.075 R)
• M17: 12,678,569 km (0.119 R)
• M18: 13,737,273 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.9

Radius: 15

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.15 AU - 2.27 AU

Year: 2121 Days

Day: 8 Hours

Environment

Temp: -194 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,616,033 km

• M1: 186,549 km (0.047 R)
• M2: 687,552 km (0.073 R)
• M3: 1,316,461 km (0.071 R)
• M4: 2,493,198 km (0.093 R)
• M5: 3,793,353 km (0.106 R)
• M6: 4,645,911 km (0.082 R)
• M7: 5,600,047 km (0.107 R)
• M8: 6,500,626 km (0.105 R)
• M9: 7,495,751 km (0.109 R)
• M10: 10,341,252 km (0.07 R)
• M11: 10,841,208 km (0.108 R)
• M12: 12,478,706 km (0.12 R)
• M13: 13,211,138 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796.1

Radius: 12.3

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.08 AU - 2.62 AU

Year: 2326 Days

Day: 10.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 67,616,033 km

• M1: 153,039 km (0.113 R)
• M2: 1,072,318 km (0.11 R)
• M3: 1,475,334 km (0.084 R)
• M4: 2,446,224 km (0.112 R)
• M5: 3,113,730 km (0.072 R)
• M6: 3,803,975 km (0.068 R)
• M7: 4,835,901 km (0.091 R)
• M8: 5,942,177 km (0.111 R)
• M9: 6,391,419 km (0.075 R)
• M10: 7,508,317 km (0.095 R)
• M11: 8,066,018 km (0.036 R)
• M12: 9,229,590 km (0.114 R)
• M13: 9,943,022 km (0.119 R)
• M14: 10,692,957 km (0.099 R)
• M15: 11,764,676 km (0.087 R)
• M16: 13,038,053 km (0.114 R)
• M17: 13,617,595 km (0.074 R)
• M18: 14,684,976 km (0.106 R)
• M19: 15,957,754 km (0.105 R)
• M20: 18,332,770 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.8

Radius: 14.4

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.22 AU - 3.4 AU

Year: 3041 Days

Day: 7.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,616,033 km

• M1: 179,667 km (0.093 R)
• M2: 814,261 km (0.112 R)
• M3: 1,355,806 km (0.097 R)
• M4: 1,944,772 km (0.116 R)
• M5: 2,866,894 km (0.114 R)
• M6: 3,344,260 km (0.116 R)
• M7: 4,624,220 km (0.091 R)
• M8: 5,286,190 km (0.04 R)
• M9: 5,762,211 km (0.112 R)
• M10: 6,353,870 km (0.101 R)
• M11: 8,518,252 km (0.107 R)
• M12: 9,175,286 km (0.114 R)
• M13: 9,748,545 km (0.107 R)
• M14: 10,508,951 km (0.083 R)
• M15: 12,514,460 km (0.073 R)
• M16: 13,268,583 km (0.071 R)
• M17: 14,660,891 km (0.114 R)
• M18: 16,039,285 km (0.103 R)
• M19: 17,100,084 km (0.086 R)
• M20: 18,386,177 km (0.103 R)
• M21: 19,052,934 km (0.112 R)
• M22: 23,680,894 km (0.109 R)

Asteroid Belt

Center: 3.14 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.7

Radius: 12.1

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.88 AU - 4.04 AU

Year: 4156 Days

Day: 8.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,616,033 km

• M1: 150,495 km (0.079 R)
• M2: 574,755 km (0.1 R)
• M3: 1,021,604 km (0.035 R)
• M4: 1,804,150 km (0.108 R)
• M5: 2,499,182 km (0.081 R)
• M6: 2,901,002 km (0.093 R)
• M7: 3,524,825 km (0.11 R)
• M8: 4,122,768 km (0.083 R)
• M9: 5,251,783 km (0.11 R)
• M10: 5,831,325 km (0.101 R)
• M11: 6,892,124 km (0.037 R)
• M12: 8,851,108 km (0.085 R)
• M13: 9,917,740 km (0.046 R)
• M14: 10,418,445 km (0.113 R)
• M15: 12,023,031 km (0.101 R)
• M16: 13,280,252 km (0.115 R)
• M17: 13,735,179 km (0.082 R)
• M18: 14,148,518 km (0.117 R)
• M19: 17,942,619 km (0.088 R)
• M20: 22,013,925 km (0.104 R)
• M21: 23,375,565 km (0.096 R)
• M22: 24,263,877 km (0.102 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.3

Radius: 14.7

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 5.15 AU - 6.09 AU

Year: 8602 Days

Day: 13.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,616,033 km

• M1: 182,809 km (0.052 R)
• M2: 658,380 km (0.089 R)
• M3: 1,194,689 km (0.09 R)
• M4: 1,916,199 km (0.114 R)
• M5: 2,468,814 km (0.077 R)
• M6: 3,074,386 km (0.059 R)
• M7: 5,754,880 km (0.105 R)
• M8: 7,762,634 km (0.088 R)
• M9: 8,312,854 km (0.103 R)
• M10: 9,453,538 km (0.105 R)
• M11: 10,948,619 km (0.045 R)
• M12: 11,509,911 km (0.12 R)
• M13: 12,045,022 km (0.109 R)
• M14: 15,131,974 km (0.063 R)
• M15: 16,380,219 km (0.081 R)
• M16: 17,115,492 km (0.115 R)
• M17: 19,642,500 km (0.118 R)
• M18: 21,795,512 km (0.12 R)
• M19: 22,477,978 km (0.114 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.4

Radius: 11.4

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 4.71 AU - 7.25 AU

Year: 9442 Days

Day: 14.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,616,033 km

• M1: 150,645 km (0.11 R)
• M2: 1,032,076 km (0.041 R)
• M3: 2,115,314 km (0.069 R)
• M4: 3,242,983 km (0.118 R)
• M5: 3,673,525 km (0.117 R)
• M6: 5,291,127 km (0.101 R)
• M7: 5,890,715 km (0.096 R)
• M8: 6,893,021 km (0.06 R)
• M9: 8,291,163 km (0.096 R)
• M10: 14,741,673 km (0.056 R)
• M11: 16,058,583 km (0.11 R)
• M12: 19,877,967 km (0.113 R)
• M13: 20,252,709 km (0.075 R)
• M14: 21,562,139 km (0.108 R)
• M15: 22,439,082 km (0.115 R)
• M16: 27,925,734 km (0.04 R)
• M17: 29,063,575 km (0.084 R)
• M18: 32,766,422 km (0.118 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 616.1

Radius: 3.3

Gravity: 56.57 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 7.85 AU - 10.31 AU

Year: 17666 Days

Day: 22.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 67,616,033 km

• M1: 67,319 km (0.119 R)
• M2: 273,764 km (0.087 R)
• M3: 435,180 km (0.112 R)
• M4: 657,931 km (0.114 R)
• M5: 1,022,651 km (0.099 R)
• M6: 1,371,064 km (0.092 R)
• M7: 2,255,337 km (0.072 R)
• M8: 2,382,196 km (0.079 R)
• M9: 2,744,223 km (0.046 R)
• M10: 3,661,857 km (0.061 R)
• M11: 3,988,130 km (0.12 R)
• M12: 4,664,312 km (0.076 R)
• M13: 8,039,988 km (0.065 R)
• M14: 8,237,008 km (0.03 R)
• M15: 9,217,473 km (0.096 R)
• M16: 9,931,503 km (0.09 R)
• M17: 14,491,695 km (0.071 R)
• M18: 16,937,920 km (0.084 R)
• M19: 18,005,749 km (0.095 R)
• M20: 18,943,578 km (0.046 R)
• M21: 19,823,962 km (0.106 R)
• M22: 20,547,716 km (0.101 R)
• M23: 21,195,176 km (0.049 R)
• M24: 23,418,499 km (0.046 R)
• M25: 24,226,926 km (0.075 R)
• M26: 25,158,323 km (0.114 R)
• M27: 26,113,356 km (0.096 R)
• M28: 26,220,916 km (0.118 R)
• M29: 27,535,283 km (0.069 R)
• M30: 27,982,880 km (0.063 R)
• M31: 30,532,028 km (0.073 R)
• M32: 33,484,791 km (0.12 R)
• M33: 35,820,313 km (0.055 R)
• M34: 36,219,888 km (0.098 R)
• M35: 43,022,552 km (0.102 R)
• M36: 45,310,951 km (0.06 R)
• M37: 48,649,228 km (0.103 R)
• M38: 50,128,750 km (0.11 R)
• M39: 59,640,482 km (0.106 R)
• M40: 60,766,057 km (0.106 R)
• M41: 61,905,843 km (0.088 R)
• M42: 67,009,673 km (0.079 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 229 - 15,859 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit