🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.48 AU - 0.54 AU

Year: 232 Days

Day: 31 Hours

Environment

Temp: -121 °C

Axial Tilt: 34.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 71,353,060 km

• M1: 60,587 km (0.104 R)
• M2: 306,077 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976

Radius: 8

Gravity: 15.25 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.71 AU - 0.97 AU

Year: 489 Days

Day: 12.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,353,060 km

• M1: 99,632 km (0.095 R)
• M2: 350,657 km (0.12 R)
• M3: 604,525 km (0.079 R)
• M4: 1,171,202 km (0.119 R)
• M5: 2,036,326 km (0.1 R)
• M6: 2,427,674 km (0.111 R)
• M7: 2,745,271 km (0.109 R)
• M8: 3,150,681 km (0.089 R)
• M9: 3,662,605 km (0.049 R)
• M10: 3,952,825 km (0.112 R)
• M11: 4,273,263 km (0.054 R)
• M12: 4,532,815 km (0.09 R)
• M13: 4,950,194 km (0.058 R)
• M14: 5,992,741 km (0.066 R)
• M15: 6,377,357 km (0.102 R)
• M16: 7,048,004 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.7

Radius: 14.2

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.45 AU - 2.05 AU

Year: 1472 Days

Day: 9.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,353,060 km

• M1: 180,714 km (0.089 R)
• M2: 674,537 km (0.097 R)
• M3: 1,150,707 km (0.111 R)
• M4: 1,757,326 km (0.065 R)
• M5: 4,040,339 km (0.107 R)
• M6: 5,024,992 km (0.025 R)
• M7: 9,486,001 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.7

Radius: 14.6

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.21 AU - 2.39 AU

Year: 2218 Days

Day: 13.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,353,060 km

• M1: 181,612 km (0.094 R)
• M2: 650,452 km (0.101 R)
• M3: 1,215,632 km (0.054 R)
• M4: 1,851,124 km (0.087 R)
• M5: 2,830,392 km (0.093 R)
• M6: 3,389,888 km (0.115 R)
• M7: 4,225,990 km (0.042 R)
• M8: 4,961,563 km (0.075 R)
• M9: 6,335,171 km (0.074 R)
• M10: 6,871,928 km (0.08 R)
• M11: 7,634,727 km (0.099 R)
• M12: 8,362,970 km (0.12 R)
• M13: 9,525,644 km (0.037 R)
• M14: 12,171,283 km (0.102 R)
• M15: 13,125,867 km (0.117 R)
• M16: 13,916,342 km (0.094 R)
• M17: 14,431,856 km (0.107 R)
• M18: 14,960,236 km (0.039 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.9

Radius: 9.1

Gravity: 8.25 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 4.07 AU - 4.37 AU

Year: 5512 Days

Day: 8.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 71,353,060 km

• M1: 113,246 km (0.039 R)
• M2: 716,873 km (0.086 R)
• M3: 2,030,641 km (0.119 R)
• M4: 2,422,438 km (0.108 R)
• M5: 3,359,220 km (0.029 R)
• M6: 3,887,001 km (0.087 R)
• M7: 4,443,805 km (0.088 R)
• M8: 4,754,819 km (0.105 R)
• M9: 5,136,144 km (0.114 R)
• M10: 5,960,278 km (0.088 R)
• M11: 6,535,033 km (0.11 R)
• M12: 7,181,296 km (0.043 R)
• M13: 7,610,941 km (0.12 R)
• M14: 8,760,751 km (0.1 R)
• M15: 9,127,116 km (0.036 R)
• M16: 10,022,309 km (0.11 R)
• M17: 14,929,269 km (0.063 R)
• M18: 17,477,818 km (0.115 R)
• M19: 18,855,016 km (0.091 R)
• M20: 19,193,407 km (0.093 R)
• M21: 19,743,029 km (0.082 R)
• M22: 22,197,033 km (0.054 R)
• M23: 22,726,460 km (0.097 R)
• M24: 23,653,518 km (0.087 R)
• M25: 28,759,742 km (0.098 R)
• M26: 30,027,434 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.4

Radius: 13.7

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 4.22 AU - 4.92 AU

Year: 6212 Days

Day: 5.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,353,060 km

• M1: 171,439 km (0.11 R)
• M2: 1,066,184 km (0.083 R)
• M3: 2,196,845 km (0.079 R)
• M4: 3,920,661 km (0.081 R)
• M5: 5,430,852 km (0.097 R)
• M6: 6,185,722 km (0.104 R)
• M7: 10,292,782 km (0.117 R)
• M8: 11,153,120 km (0.092 R)
• M9: 13,291,771 km (0.075 R)
• M10: 15,506,866 km (0.115 R)
• M11: 16,702,153 km (0.1 R)
• M12: 19,922,397 km (0.052 R)
• M13: 21,410,597 km (0.111 R)
• M14: 21,948,700 km (0.052 R)
• M15: 23,780,377 km (0.039 R)
• M16: 25,368,657 km (0.089 R)
• M17: 27,474,846 km (0.073 R)
• M18: 28,848,902 km (0.052 R)
• M19: 33,554,503 km (0.056 R)
• M20: 35,017,870 km (0.1 R)
• M21: 36,305,758 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 774.1

Radius: 5

Gravity: 30.96 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 8.72 AU - 9.4 AU

Year: 17339 Days

Day: 20.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 71,353,060 km

• M1: 63,429 km (0.118 R)
• M2: 556,055 km (0.081 R)
• M3: 938,128 km (0.092 R)
• M4: 1,120,937 km (0.084 R)
• M5: 1,948,363 km (0.098 R)
• M6: 2,744,822 km (0.099 R)
• M7: 2,917,009 km (0.056 R)
• M8: 3,122,706 km (0.069 R)
• M9: 4,107,060 km (0.09 R)
• M10: 4,332,953 km (0.088 R)
• M11: 4,739,410 km (0.073 R)
• M12: 5,358,297 km (0.052 R)
• M13: 8,429,242 km (0.08 R)
• M14: 8,636,584 km (0.113 R)
• M15: 8,794,410 km (0.098 R)
• M16: 9,170,200 km (0.094 R)
• M17: 9,389,660 km (0.051 R)
• M18: 10,480,228 km (0.089 R)
• M19: 10,963,878 km (0.116 R)
• M20: 12,237,704 km (0.042 R)
• M21: 13,964,662 km (0.04 R)
• M22: 18,150,560 km (0.082 R)
• M23: 18,323,046 km (0.058 R)
• M24: 20,109,245 km (0.067 R)
• M25: 20,573,298 km (0.057 R)
• M26: 25,505,240 km (0.12 R)
• M27: 27,046,846 km (0.072 R)
• M28: 27,955,055 km (0.038 R)
• M29: 29,832,209 km (0.096 R)
• M30: 31,294,079 km (0.088 R)
• M31: 32,548,308 km (0.115 R)
• M32: 42,279,201 km (0.087 R)
• M33: 48,128,926 km (0.033 R)
• M34: 50,476,117 km (0.096 R)
• M35: 53,250,559 km (0.074 R)
• M36: 55,215,826 km (0.098 R)
• M37: 58,723,447 km (0.119 R)
• M38: 68,448,805 km (0.119 R)
• M39: 69,287,151 km (0.031 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 184.8

Radius: 7.8

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 7.62 AU - 12.1 AU

Year: 19686 Days

Day: 19 Hours

Environment

Temp: -236 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,353,060 km

• M1: 98,136 km (0.071 R)
• M2: 1,220,868 km (0.1 R)
• M3: 1,763,759 km (0.118 R)
• M4: 2,867,642 km (0.098 R)
• M5: 5,500,115 km (0.059 R)
• M6: 6,202,477 km (0.116 R)
• M7: 7,999,746 km (0.065 R)
• M8: 8,669,197 km (0.1 R)
• M9: 12,944,255 km (0.116 R)
• M10: 13,865,927 km (0.059 R)
• M11: 14,569,187 km (0.067 R)
• M12: 15,028,901 km (0.102 R)
• M13: 18,522,460 km (0.094 R)
• M14: 23,853,380 km (0.085 R)
• M15: 25,708,544 km (0.115 R)
• M16: 30,656,493 km (0.072 R)
• M17: 38,773,075 km (0.101 R)
• M18: 42,251,824 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 473.3

Radius: 7.8

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 9.65 AU - 11.49 AU

Year: 21850 Days

Day: 17.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,353,060 km

• M1: 106,962 km (0.093 R)
• M2: 411,245 km (0.066 R)
• M3: 684,261 km (0.04 R)
• M4: 1,057,657 km (0.119 R)
• M5: 1,468,602 km (0.082 R)
• M6: 2,520,575 km (0.072 R)
• M7: 2,897,711 km (0.068 R)
• M8: 4,037,946 km (0.118 R)
• M9: 4,422,113 km (0.06 R)
• M10: 5,962,223 km (0.091 R)
• M11: 6,291,937 km (0.096 R)
• M12: 7,354,231 km (0.116 R)
• M13: 8,480,254 km (0.054 R)
• M14: 10,290,538 km (0.038 R)
• M15: 10,947,423 km (0.114 R)
• M16: 12,212,721 km (0.041 R)
• M17: 12,477,061 km (0.036 R)
• M18: 12,948,892 km (0.118 R)
• M19: 16,270,713 km (0.109 R)
• M20: 17,410,200 km (0.049 R)
• M21: 17,745,150 km (0.093 R)
• M22: 20,957,614 km (0.113 R)
• M23: 23,505,266 km (0.082 R)
• M24: 24,017,789 km (0.106 R)
• M25: 25,816,404 km (0.085 R)
• M26: 32,374,924 km (0.098 R)
• M27: 36,035,584 km (0.114 R)
• M28: 39,673,505 km (0.082 R)
• M29: 41,432,177 km (0.1 R)
• M30: 42,029,821 km (0.119 R)
• M31: 43,548,987 km (0.075 R)
• M32: 47,343,687 km (0.11 R)
• M33: 54,148,296 km (0.096 R)
• M34: 59,849,620 km (0.094 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 18,063 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit