🌌 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: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.55 AU - 0.79 AU

Year: 354 Days

Day: 33.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 14.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,322,176 km

• M1: 210,185 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.7

Radius: 9.7

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.89 AU - 0.89 AU

Year: 542 Days

Day: 6.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,322,176 km

• M1: 120,725 km (0.055 R)
• M2: 436,078 km (0.085 R)
• M3: 757,863 km (0.026 R)
• M4: 1,134,700 km (0.115 R)
• M5: 1,830,928 km (0.094 R)
• M6: 2,267,754 km (0.112 R)
• M7: 2,573,383 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.8

Radius: 9.3

Gravity: 10.65 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.95 AU - 1.55 AU

Year: 902 Days

Day: 12.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,322,176 km

• M1: 115,639 km (0.043 R)
• M2: 518,506 km (0.099 R)
• M3: 1,062,145 km (0.119 R)
• M4: 1,487,601 km (0.115 R)
• M5: 1,905,578 km (0.084 R)
• M6: 2,470,010 km (0.095 R)
• M7: 3,197,505 km (0.099 R)
• M8: 3,664,849 km (0.107 R)
• M9: 4,077,589 km (0.081 R)
• M10: 4,381,422 km (0.068 R)
• M11: 4,828,570 km (0.105 R)
• M12: 5,627,573 km (0.05 R)
• M13: 6,113,018 km (0.091 R)
• M14: 6,467,116 km (0.095 R)
• M15: 7,240,687 km (0.108 R)
• M16: 7,687,835 km (0.06 R)
• M17: 8,447,193 km (0.061 R)
• M18: 9,458,325 km (0.115 R)
• M19: 10,485,464 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.3

Radius: 11.2

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.08 AU - 2.2 AU

Year: 2021 Days

Day: 5.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,322,176 km

• M1: 139,276 km (0.05 R)
• M2: 591,959 km (0.089 R)
• M3: 1,007,691 km (0.071 R)
• M4: 1,535,473 km (0.081 R)
• M5: 1,993,092 km (0.074 R)
• M6: 2,343,600 km (0.036 R)
• M7: 2,693,210 km (0.108 R)
• M8: 3,109,093 km (0.083 R)
• M9: 3,499,543 km (0.044 R)
• M10: 4,262,492 km (0.057 R)
• M11: 4,746,292 km (0.11 R)
• M12: 5,402,428 km (0.05 R)
• M13: 5,800,657 km (0.039 R)
• M14: 6,268,749 km (0.096 R)
• M15: 6,869,085 km (0.106 R)
• M16: 7,680,355 km (0.103 R)
• M17: 8,337,389 km (0.05 R)
• M18: 8,966,896 km (0.04 R)
• M19: 9,935,842 km (0.108 R)
• M20: 13,388,860 km (0.067 R)
• M21: 15,291,595 km (0.054 R)
• M22: 16,043,474 km (0.026 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.8

Radius: 9.3

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.4 AU - 3.22 AU

Year: 3041 Days

Day: 11.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,322,176 km

• M1: 118,332 km (0.074 R)
• M2: 416,780 km (0.048 R)
• M3: 765,492 km (0.11 R)
• M4: 1,068,877 km (0.094 R)
• M5: 1,386,772 km (0.109 R)
• M6: 1,768,696 km (0.042 R)
• M7: 2,278,974 km (0.111 R)
• M8: 2,640,851 km (0.059 R)
• M9: 4,490,479 km (0.1 R)
• M10: 5,464,062 km (0.081 R)
• M11: 5,795,422 km (0.113 R)
• M12: 6,695,701 km (0.053 R)
• M13: 7,153,321 km (0.044 R)
• M14: 9,165,562 km (0.11 R)
• M15: 9,794,621 km (0.117 R)
• M16: 10,519,423 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.7

Radius: 10.9

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.74 AU - 4.48 AU

Year: 4429 Days

Day: 11.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 50,322,176 km

• M1: 148,999 km (0.076 R)
• M2: 524,191 km (0.047 R)
• M3: 881,431 km (0.113 R)
• M4: 1,390,961 km (0.035 R)
• M5: 1,853,817 km (0.119 R)
• M6: 2,296,776 km (0.115 R)
• M7: 2,689,770 km (0.101 R)
• M8: 3,686,241 km (0.082 R)
• M9: 4,331,008 km (0.105 R)
• M10: 5,072,265 km (0.11 R)
• M11: 5,571,174 km (0.073 R)
• M12: 6,128,726 km (0.095 R)
• M13: 7,092,136 km (0.096 R)
• M14: 7,565,015 km (0.053 R)
• M15: 7,995,857 km (0.118 R)
• M16: 8,739,358 km (0.034 R)
• M17: 9,110,959 km (0.1 R)
• M18: 10,068,086 km (0.105 R)
• M19: 11,486,723 km (0.082 R)
• M20: 12,056,990 km (0.041 R)
• M21: 12,774,611 km (0.104 R)
• M22: 13,298,204 km (0.12 R)
• M23: 14,669,717 km (0.099 R)
• M24: 17,532,122 km (0.097 R)
• M25: 17,961,768 km (0.112 R)
• M26: 18,563,749 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 671.6

Radius: 7

Gravity: 13.71 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 6.69 AU - 7.33 AU

Year: 11984 Days

Day: 22 Hours

Environment

Temp: -218 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 50,322,176 km

• M1: 87,066 km (0.091 R)
• M2: 774,319 km (0.096 R)
• M3: 1,142,778 km (0.091 R)
• M4: 1,422,526 km (0.109 R)
• M5: 1,779,467 km (0.114 R)
• M6: 1,997,132 km (0.062 R)
• M7: 2,781,922 km (0.105 R)
• M8: 3,220,094 km (0.071 R)
• M9: 3,597,679 km (0.064 R)
• M10: 3,838,083 km (0.102 R)
• M11: 7,628,893 km (0.089 R)
• M12: 8,254,511 km (0.067 R)
• M13: 12,082,870 km (0.079 R)
• M14: 14,479,728 km (0.048 R)
• M15: 15,437,453 km (0.11 R)
• M16: 17,402,571 km (0.114 R)
• M17: 19,775,193 km (0.084 R)
• M18: 20,442,399 km (0.1 R)
• M19: 22,265,549 km (0.115 R)
• M20: 23,262,618 km (0.076 R)
• M21: 26,231,987 km (0.108 R)
• M22: 27,139,298 km (0.078 R)
• M23: 30,314,662 km (0.118 R)
• M24: 31,538,522 km (0.117 R)
• M25: 34,441,768 km (0.075 R)
• M26: 37,518,398 km (0.097 R)
• M27: 42,400,674 km (0.069 R)
• M28: 45,639,767 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 623.6

Radius: 6.9

Gravity: 13.1 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 6.85 AU - 10.93 AU

Year: 17115 Days

Day: 20 Hours

Environment

Temp: -225 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 50,322,176 km

• M1: 86,019 km (0.081 R)
• M2: 314,305 km (0.094 R)
• M3: 1,148,164 km (0.034 R)
• M4: 1,721,572 km (0.045 R)
• M5: 2,261,022 km (0.084 R)
• M6: 2,788,056 km (0.108 R)
• M7: 3,080,819 km (0.109 R)
• M8: 3,448,231 km (0.114 R)
• M9: 5,074,509 km (0.102 R)
• M10: 5,327,031 km (0.103 R)
• M11: 5,740,519 km (0.086 R)
• M12: 6,256,781 km (0.096 R)
• M13: 6,890,328 km (0.028 R)
• M14: 8,891,499 km (0.103 R)
• M15: 10,024,703 km (0.056 R)
• M16: 10,423,082 km (0.039 R)
• M17: 12,058,785 km (0.057 R)
• M18: 13,650,207 km (0.062 R)
• M19: 16,684,651 km (0.042 R)
• M20: 17,487,692 km (0.097 R)
• M21: 18,232,240 km (0.106 R)
• M22: 18,825,695 km (0.119 R)
• M23: 19,519,680 km (0.057 R)
• M24: 23,644,691 km (0.079 R)
• M25: 24,248,768 km (0.109 R)
• M26: 24,554,695 km (0.116 R)
• M27: 26,768,295 km (0.036 R)
• M28: 27,756,389 km (0.079 R)
• M29: 28,091,039 km (0.038 R)
• M30: 31,346,289 km (0.078 R)
• M31: 32,939,656 km (0.108 R)
• M32: 34,715,083 km (0.1 R)
• M33: 35,103,739 km (0.114 R)
• M34: 36,286,908 km (0.096 R)
• M35: 42,309,120 km (0.059 R)
• M36: 56,463,323 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 249

Radius: 7.2

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 9.09 AU - 9.19 AU

Year: 17842 Days

Day: 19.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 50,322,176 km

• M1: 91,404 km (0.103 R)
• M2: 554,709 km (0.041 R)
• M3: 982,708 km (0.109 R)
• M4: 1,353,113 km (0.042 R)
• M5: 1,782,309 km (0.049 R)
• M6: 2,116,660 km (0.114 R)
• M7: 2,472,404 km (0.116 R)
• M8: 4,195,921 km (0.107 R)
• M9: 4,486,291 km (0.072 R)
• M10: 5,507,146 km (0.056 R)
• M11: 6,482,375 km (0.118 R)
• M12: 7,824,866 km (0.062 R)
• M13: 8,310,910 km (0.075 R)
• M14: 10,301,758 km (0.119 R)
• M15: 11,774,100 km (0.082 R)
• M16: 16,735,364 km (0.028 R)
• M17: 18,605,338 km (0.11 R)
• M18: 19,311,440 km (0.117 R)
• M19: 21,880,334 km (0.116 R)
• M20: 25,520,350 km (0.1 R)
• M21: 25,905,265 km (0.027 R)
• M22: 32,040,274 km (0.114 R)
• M23: 32,826,859 km (0.068 R)
• M24: 36,102,155 km (0.117 R)
• M25: 37,818,791 km (0.102 R)
• M26: 39,588,982 km (0.106 R)
• M27: 40,104,796 km (0.092 R)
• M28: 45,089,995 km (0.051 R)
• M29: 45,652,483 km (0.119 R)
• M30: 47,803,551 km (0.117 R)
• M31: 50,171,685 km (0.097 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: 345 - 19,137 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit