🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.72

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.54 AU - 0.74 AU

Year: 336 Days

Day: 18.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 41.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,062,034 km

• M1: 43,383 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.9

Radius: 9.5

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.86 AU - 0.94 AU

Year: 560 Days

Day: 6.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 64.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,062,034 km

• M1: 118,482 km (0.109 R)
• M2: 416,480 km (0.052 R)
• M3: 953,537 km (0.027 R)
• M4: 1,330,224 km (0.062 R)
• M5: 1,921,734 km (0.083 R)
• M6: 2,319,066 km (0.073 R)
• M7: 3,662,455 km (0.086 R)
• M8: 4,929,100 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242

Radius: 10.2

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.82 AU - 1.02 AU

Year: 579 Days

Day: 13.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,062,034 km

• M1: 126,859 km (0.107 R)
• M2: 455,226 km (0.117 R)
• M3: 909,705 km (0.039 R)
• M4: 1,282,503 km (0.037 R)
• M5: 1,633,908 km (0.082 R)
• M6: 1,956,740 km (0.096 R)
• M7: 2,446,075 km (0.088 R)
• M8: 2,943,488 km (0.081 R)
• M9: 3,315,538 km (0.059 R)
• M10: 3,815,643 km (0.063 R)
• M11: 4,419,420 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341.7

Radius: 13.6

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.75 AU - 1.17 AU

Year: 617 Days

Day: 13.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,062,034 km

• M1: 169,195 km (0.118 R)
• M2: 640,578 km (0.103 R)
• M3: 1,353,562 km (0.095 R)
• M4: 1,849,778 km (0.104 R)
• M5: 2,321,609 km (0.055 R)
• M6: 3,502,385 km (0.101 R)
• M7: 4,193,677 km (0.042 R)
• M8: 5,035,913 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188

Radius: 10.7

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.08 AU - 1.3 AU

Year: 852 Days

Day: 13.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,062,034 km

• M1: 133,142 km (0.092 R)
• M2: 521,797 km (0.043 R)
• M3: 2,181,586 km (0.05 R)
• M4: 3,529,014 km (0.03 R)
• M5: 4,346,117 km (0.107 R)
• M6: 5,284,844 km (0.074 R)
• M7: 5,802,453 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.1

Radius: 9.9

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.58 AU - 3.92 AU

Year: 4764 Days

Day: 5.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,062,034 km

• M1: 123,269 km (0.08 R)
• M2: 435,479 km (0.065 R)
• M3: 753,674 km (0.104 R)
• M4: 1,372,261 km (0.033 R)
• M5: 1,919,191 km (0.12 R)
• M6: 2,450,712 km (0.042 R)
• M7: 3,706,586 km (0.102 R)
• M8: 4,237,958 km (0.12 R)
• M9: 4,651,447 km (0.064 R)
• M10: 5,453,291 km (0.08 R)
• M11: 5,776,722 km (0.111 R)
• M12: 7,074,633 km (0.103 R)
• M13: 7,460,147 km (0.028 R)
• M14: 8,414,431 km (0.067 R)
• M15: 9,525,196 km (0.079 R)
• M16: 11,414,168 km (0.063 R)
• M17: 13,491,783 km (0.076 R)
• M18: 15,432,816 km (0.067 R)
• M19: 16,470,127 km (0.108 R)
• M20: 21,087,615 km (0.067 R)
• M21: 21,551,967 km (0.026 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974

Radius: 14.1

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 4.02 AU - 4.94 AU

Year: 6221 Days

Day: 14.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 61,062,034 km

• M1: 175,329 km (0.102 R)
• M2: 778,956 km (0.098 R)
• M3: 1,468,752 km (0.108 R)
• M4: 2,354,970 km (0.109 R)
• M5: 2,890,081 km (0.081 R)
• M6: 3,416,217 km (0.092 R)
• M7: 4,031,214 km (0.094 R)
• M8: 4,472,677 km (0.066 R)
• M9: 5,092,461 km (0.117 R)
• M10: 5,578,804 km (0.072 R)
• M11: 6,298,370 km (0.075 R)
• M12: 6,823,907 km (0.077 R)
• M13: 7,647,892 km (0.087 R)
• M14: 8,495,364 km (0.081 R)
• M15: 11,365,997 km (0.089 R)
• M16: 12,041,432 km (0.106 R)
• M17: 13,076,649 km (0.094 R)
• M18: 15,574,934 km (0.074 R)
• M19: 17,887,866 km (0.066 R)
• M20: 19,381,003 km (0.034 R)
• M21: 20,270,661 km (0.035 R)
• M22: 23,767,511 km (0.077 R)
• M23: 26,822,150 km (0.091 R)
• M24: 27,370,875 km (0.097 R)
• M25: 29,062,378 km (0.078 R)
• M26: 30,822,547 km (0.117 R)
• M27: 37,886,409 km (0.09 R)
• M28: 38,461,762 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.5

Radius: 9.5

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 4.55 AU - 5.27 AU

Year: 7137 Days

Day: 14.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 61,062,034 km

• M1: 128,056 km (0.11 R)
• M2: 563,685 km (0.11 R)
• M3: 992,731 km (0.095 R)
• M4: 1,751,791 km (0.1 R)
• M5: 2,463,279 km (0.077 R)
• M6: 3,441,050 km (0.078 R)
• M7: 3,958,958 km (0.078 R)
• M8: 4,606,118 km (0.06 R)
• M9: 5,010,631 km (0.07 R)
• M10: 5,556,963 km (0.106 R)
• M11: 6,047,344 km (0.116 R)
• M12: 7,221,089 km (0.087 R)
• M13: 8,186,743 km (0.045 R)
• M14: 11,405,342 km (0.059 R)
• M15: 11,996,702 km (0.048 R)
• M16: 12,402,262 km (0.089 R)
• M17: 12,921,965 km (0.112 R)
• M18: 14,228,702 km (0.081 R)
• M19: 15,030,397 km (0.062 R)
• M20: 17,681,720 km (0.118 R)
• M21: 18,608,180 km (0.058 R)
• M22: 20,342,767 km (0.115 R)
• M23: 22,948,613 km (0.116 R)
• M24: 28,542,975 km (0.059 R)
• M25: 30,468,000 km (0.075 R)
• M26: 31,510,099 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 617.4

Radius: 5.1

Gravity: 23.74 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 8.01 AU - 8.13 AU

Year: 15039 Days

Day: 18.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 61,062,034 km

• M1: 67,020 km (0.085 R)
• M2: 244,742 km (0.086 R)
• M3: 594,203 km (0.112 R)
• M4: 851,361 km (0.032 R)
• M5: 1,167,911 km (0.108 R)
• M6: 1,719,179 km (0.114 R)
• M7: 1,925,175 km (0.042 R)
• M8: 3,015,743 km (0.1 R)
• M9: 3,637,323 km (0.046 R)
• M10: 3,833,745 km (0.086 R)
• M11: 4,037,198 km (0.097 R)
• M12: 4,247,832 km (0.102 R)
• M13: 4,561,538 km (0.1 R)
• M14: 4,724,151 km (0.074 R)
• M15: 4,924,313 km (0.094 R)
• M16: 5,486,053 km (0.115 R)
• M17: 5,858,103 km (0.118 R)
• M18: 6,128,576 km (0.066 R)
• M19: 7,206,279 km (0.096 R)
• M20: 8,453,327 km (0.071 R)
• M21: 9,360,488 km (0.097 R)
• M22: 9,783,850 km (0.112 R)
• M23: 10,386,580 km (0.052 R)
• M24: 10,725,719 km (0.084 R)
• M25: 10,955,800 km (0.072 R)
• M26: 11,665,941 km (0.085 R)
• M27: 17,046,528 km (0.077 R)
• M28: 17,518,359 km (0.099 R)
• M29: 17,677,532 km (0.101 R)
• M30: 17,837,601 km (0.096 R)
• M31: 23,104,344 km (0.085 R)
• M32: 25,882,376 km (0.077 R)
• M33: 28,764,529 km (0.11 R)
• M34: 31,499,776 km (0.072 R)
• M35: 32,688,930 km (0.113 R)
• M36: 36,177,253 km (0.063 R)
• M37: 37,480,849 km (0.119 R)
• M38: 51,789,586 km (0.059 R)
• M39: 55,646,518 km (0.099 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 448.4

Radius: 5.9

Gravity: 12.88 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 8.45 AU - 9.59 AU

Year: 17771 Days

Day: 15.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 61,062,034 km

• M1: 73,602 km (0.102 R)
• M2: 606,470 km (0.061 R)
• M3: 796,160 km (0.087 R)
• M4: 1,037,760 km (0.033 R)
• M5: 1,247,347 km (0.116 R)
• M6: 1,820,905 km (0.066 R)
• M7: 2,034,681 km (0.031 R)
• M8: 2,225,568 km (0.069 R)
• M9: 3,187,781 km (0.062 R)
• M10: 3,393,628 km (0.047 R)
• M11: 4,495,715 km (0.075 R)
• M12: 6,527,404 km (0.087 R)
• M13: 8,163,556 km (0.097 R)
• M14: 9,891,860 km (0.066 R)
• M15: 11,667,886 km (0.098 R)
• M16: 12,663,011 km (0.101 R)
• M17: 14,329,232 km (0.103 R)
• M18: 14,749,752 km (0.118 R)
• M19: 15,615,774 km (0.116 R)
• M20: 15,911,828 km (0.069 R)
• M21: 16,287,019 km (0.074 R)
• M22: 16,899,772 km (0.065 R)
• M23: 21,082,230 km (0.078 R)
• M24: 24,587,607 km (0.105 R)
• M25: 29,463,151 km (0.045 R)
• M26: 30,029,080 km (0.088 R)
• M27: 34,195,081 km (0.088 R)
• M28: 34,694,439 km (0.091 R)
• M29: 37,660,366 km (0.087 R)
• M30: 38,461,014 km (0.059 R)
• M31: 41,071,198 km (0.095 R)
• M32: 41,493,961 km (0.055 R)
• M33: 45,279,236 km (0.093 R)
• M34: 45,579,629 km (0.109 R)
• M35: 49,288,459 km (0.086 R)
• M36: 50,246,185 km (0.044 R)
• M37: 52,528,899 km (0.092 R)
• M38: 55,564,090 km (0.104 R)
• M39: 58,004,181 km (0.065 R)
• M40: 59,250,630 km (0.069 R)
• M41: 59,790,230 km (0.082 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 15,713 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit