🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.48 AU - 0.8 AU

Year: 336 Days

Day: 24.1 Hours

Environment

Temp: -126 °C

Axial Tilt: 31.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.3

Radius: 9.8

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.02 AU - 1.04 AU

Year: 686 Days

Day: 7.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (58)

Outer Limit: 51,687,982 km

• M1: 138,079 km (0.084 R)
• M2: 205,996 km (0.118 R)
• M3: 285,134 km (0.083 R)
• M4: 369,956 km (0.078 R)
• M5: 488,437 km (0.079 R)
• M6: 559,197 km (0.109 R)
• M7: 621,280 km (0.09 R)
• M8: 712,834 km (0.076 R)
• M9: 813,962 km (0.108 R)
• M10: 935,286 km (0.06 R)
• M11: 1,073,365 km (0.092 R)
• M12: 1,180,178 km (0.112 R)
• M13: 1,279,511 km (0.074 R)
• M14: 1,475,185 km (0.106 R)
• M15: 1,564,644 km (0.087 R)
• M16: 1,668,315 km (0.094 R)
• M17: 1,736,682 km (0.1 R)
• M18: 1,915,002 km (0.097 R)
• M19: 2,133,116 km (0.119 R)
• M20: 2,310,838 km (0.115 R)
• M21: 2,394,464 km (0.1 R)
• M22: 2,457,893 km (0.098 R)
• M23: 2,557,675 km (0.12 R)
• M24: 2,695,305 km (0.038 R)
• M25: 2,805,708 km (0.067 R)
• M26: 2,910,127 km (0.103 R)
• M27: 3,000,784 km (0.119 R)
• M28: 3,099,967 km (0.109 R)
• M29: 3,215,905 km (0.118 R)
• M30: 3,333,190 km (0.058 R)
• M31: 3,396,320 km (0.083 R)
• M32: 3,507,920 km (0.076 R)
• M33: 3,669,337 km (0.092 R)
• M34: 3,849,901 km (0.039 R)
• M35: 3,991,421 km (0.071 R)
• M36: 4,092,399 km (0.092 R)
• M37: 4,185,599 km (0.044 R)
• M38: 4,331,158 km (0.067 R)
• M39: 4,565,877 km (0.116 R)
• M40: 4,645,014 km (0.112 R)
• M41: 4,912,345 km (0.053 R)
• M42: 4,993,427 km (0.116 R)
• M43: 5,203,014 km (0.068 R)
• M44: 5,267,341 km (0.082 R)
• M45: 5,331,967 km (0.07 R)
• M46: 5,433,993 km (0.09 R)
• M47: 5,555,467 km (0.103 R)
• M48: 5,649,564 km (0.087 R)
• M49: 5,725,111 km (0.117 R)
• M50: 5,801,106 km (0.088 R)
• M51: 5,915,698 km (0.069 R)
• M52: 6,002,166 km (0.057 R)
• M53: 6,108,380 km (0.117 R)
• M54: 6,186,022 km (0.089 R)
• M55: 6,254,388 km (0.101 R)
• M56: 6,460,534 km (0.06 R)
• M57: 6,549,544 km (0.087 R)
• M58: 6,629,130 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.1

Radius: 10

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.88 AU - 1.3 AU

Year: 747 Days

Day: 10.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (59)

Outer Limit: 51,687,982 km

• M1: 138,079 km (0.042 R)
• M2: 200,611 km (0.065 R)
• M3: 297,401 km (0.074 R)
• M4: 362,476 km (0.053 R)
• M5: 438,172 km (0.113 R)
• M6: 525,089 km (0.075 R)
• M7: 648,058 km (0.101 R)
• M8: 765,792 km (0.094 R)
• M9: 857,794 km (0.043 R)
• M10: 959,521 km (0.093 R)
• M11: 1,071,570 km (0.087 R)
• M12: 1,163,273 km (0.068 R)
• M13: 1,257,669 km (0.084 R)
• M14: 1,488,648 km (0.055 R)
• M15: 1,577,958 km (0.085 R)
• M16: 1,711,848 km (0.077 R)
• M17: 1,916,199 km (0.111 R)
• M18: 2,253,542 km (0.09 R)
• M19: 2,421,391 km (0.03 R)
• M20: 2,502,772 km (0.114 R)
• M21: 2,585,051 km (0.046 R)
• M22: 2,676,605 km (0.058 R)
• M23: 2,752,302 km (0.116 R)
• M24: 2,871,681 km (0.096 R)
• M25: 2,984,029 km (0.103 R)
• M26: 3,053,891 km (0.099 R)
• M27: 3,133,178 km (0.097 R)
• M28: 3,195,411 km (0.03 R)
• M29: 3,257,942 km (0.043 R)
• M30: 3,366,251 km (0.115 R)
• M31: 3,457,356 km (0.116 R)
• M32: 3,540,084 km (0.102 R)
• M33: 3,614,285 km (0.052 R)
• M34: 3,745,183 km (0.06 R)
• M35: 3,839,729 km (0.112 R)
• M36: 4,002,341 km (0.089 R)
• M37: 4,157,325 km (0.099 R)
• M38: 4,354,046 km (0.053 R)
• M39: 4,493,621 km (0.085 R)
• M40: 4,685,405 km (0.059 R)
• M41: 4,838,743 km (0.109 R)
• M42: 4,993,727 km (0.052 R)
• M43: 5,056,258 km (0.097 R)
• M44: 5,287,537 km (0.107 R)
• M45: 5,468,700 km (0.114 R)
• M46: 5,576,261 km (0.027 R)
• M47: 5,695,341 km (0.112 R)
• M48: 5,782,556 km (0.08 R)
• M49: 5,969,254 km (0.065 R)
• M50: 6,146,827 km (0.073 R)
• M51: 6,281,166 km (0.113 R)
• M52: 6,371,224 km (0.115 R)
• M53: 6,621,202 km (0.105 R)
• M54: 6,770,500 km (0.107 R)
• M55: 6,886,140 km (0.038 R)
• M56: 7,224,979 km (0.04 R)
• M57: 7,366,798 km (0.083 R)
• M58: 7,713,565 km (0.12 R)
• M59: 8,373,142 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.7

Radius: 13.1

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.21 AU - 1.95 AU

Year: 1303 Days

Day: 13.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (63)

Outer Limit: 51,687,982 km

• M1: 253,269 km (0.055 R)
• M2: 345,870 km (0.096 R)
• M3: 505,192 km (0.079 R)
• M4: 751,430 km (0.082 R)
• M5: 847,921 km (0.08 R)
• M6: 1,063,342 km (0.111 R)
• M7: 1,191,248 km (0.071 R)
• M8: 1,444,667 km (0.069 R)
• M9: 1,696,141 km (0.039 R)
• M10: 1,786,647 km (0.098 R)
• M11: 1,868,477 km (0.067 R)
• M12: 2,025,555 km (0.096 R)
• M13: 2,330,735 km (0.105 R)
• M14: 2,466,270 km (0.119 R)
• M15: 2,604,499 km (0.097 R)
• M16: 2,721,634 km (0.099 R)
• M17: 2,804,810 km (0.089 R)
• M18: 3,121,060 km (0.112 R)
• M19: 3,208,276 km (0.074 R)
• M20: 3,308,955 km (0.065 R)
• M21: 3,449,129 km (0.116 R)
• M22: 3,539,336 km (0.116 R)
• M23: 3,854,988 km (0.08 R)
• M24: 4,125,012 km (0.084 R)
• M25: 4,457,418 km (0.1 R)
• M26: 4,584,427 km (0.079 R)
• M27: 4,798,651 km (0.074 R)
• M28: 5,045,487 km (0.105 R)
• M29: 5,341,392 km (0.111 R)
• M30: 5,536,767 km (0.098 R)
• M31: 5,704,017 km (0.104 R)
• M32: 5,996,780 km (0.056 R)
• M33: 6,247,207 km (0.046 R)
• M34: 6,342,052 km (0.051 R)
• M35: 6,629,430 km (0.05 R)
• M36: 6,726,219 km (0.086 R)
• M37: 6,872,227 km (0.081 R)
• M38: 7,283,472 km (0.047 R)
• M39: 7,433,518 km (0.074 R)
• M40: 7,534,048 km (0.059 R)
• M41: 7,635,176 km (0.118 R)
• M42: 7,923,900 km (0.057 R)
• M43: 8,355,191 km (0.089 R)
• M44: 8,954,031 km (0.093 R)
• M45: 9,043,341 km (0.113 R)
• M46: 9,421,375 km (0.091 R)
• M47: 9,530,432 km (0.088 R)
• M48: 9,658,039 km (0.05 R)
• M49: 10,193,150 km (0.074 R)
• M50: 10,379,998 km (0.111 R)
• M51: 10,662,289 km (0.08 R)
• M52: 11,157,757 km (0.035 R)
• M53: 11,563,317 km (0.075 R)
• M54: 11,660,556 km (0.07 R)
• M55: 11,836,483 km (0.051 R)
• M56: 12,091,996 km (0.113 R)
• M57: 12,309,661 km (0.04 R)
• M58: 12,508,626 km (0.086 R)
• M59: 12,748,880 km (0.112 R)
• M60: 13,112,104 km (0.079 R)
• M61: 13,335,902 km (0.04 R)
• M62: 13,458,423 km (0.042 R)
• M63: 13,766,445 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.8

Radius: 8.1

Gravity: 10.45 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.82 AU - 1.98 AU

Year: 1718 Days

Day: 6.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 51,687,982 km

• M1: 115,490 km (0.096 R)
• M2: 173,384 km (0.04 R)
• M3: 236,514 km (0.075 R)
• M4: 421,417 km (0.059 R)
• M5: 491,579 km (0.095 R)
• M6: 552,315 km (0.087 R)
• M7: 615,894 km (0.115 R)
• M8: 743,352 km (0.086 R)
• M9: 814,710 km (0.082 R)
• M10: 1,007,691 km (0.042 R)
• M11: 1,060,499 km (0.059 R)
• M12: 1,206,058 km (0.111 R)
• M13: 1,517,222 km (0.079 R)
• M14: 1,671,607 km (0.09 R)
• M15: 1,756,129 km (0.108 R)
• M16: 1,885,681 km (0.103 R)
• M17: 1,973,794 km (0.074 R)
• M18: 2,119,951 km (0.086 R)
• M19: 2,727,768 km (0.097 R)
• M20: 3,109,242 km (0.112 R)
• M21: 3,346,355 km (0.094 R)
• M22: 3,480,694 km (0.1 R)
• M23: 3,562,224 km (0.114 R)
• M24: 3,644,204 km (0.112 R)
• M25: 3,796,345 km (0.11 R)
• M26: 3,880,270 km (0.105 R)
• M27: 4,064,125 km (0.114 R)
• M28: 4,121,272 km (0.103 R)
• M29: 4,309,017 km (0.116 R)
• M30: 4,813,012 km (0.119 R)
• M31: 5,211,092 km (0.116 R)
• M32: 5,288,883 km (0.078 R)
• M33: 5,461,369 km (0.08 R)
• M34: 5,588,079 km (0.087 R)
• M35: 5,715,686 km (0.119 R)
• M36: 6,006,355 km (0.093 R)
• M37: 6,235,838 km (0.108 R)
• M38: 6,368,232 km (0.084 R)
• M39: 6,501,523 km (0.117 R)
• M40: 6,771,099 km (0.051 R)
• M41: 7,113,080 km (0.048 R)
• M42: 7,268,811 km (0.097 R)
• M43: 7,321,021 km (0.078 R)
• M44: 7,513,403 km (0.087 R)
• M45: 7,601,367 km (0.082 R)
• M46: 7,671,977 km (0.078 R)
• M47: 7,867,502 km (0.117 R)
• M48: 7,938,860 km (0.119 R)
• M49: 8,299,540 km (0.119 R)
• M50: 8,390,496 km (0.046 R)
• M51: 8,500,151 km (0.086 R)
• M52: 8,555,203 km (0.102 R)
• M53: 8,610,255 km (0.054 R)
• M54: 8,739,358 km (0.036 R)
• M55: 9,243,204 km (0.035 R)
• M56: 9,356,449 km (0.098 R)
• M57: 9,565,288 km (0.069 R)
• M58: 10,259,572 km (0.064 R)
• M59: 10,435,648 km (0.098 R)
• M60: 11,270,704 km (0.039 R)
• M61: 11,391,728 km (0.057 R)
• M62: 11,553,743 km (0.072 R)
• M63: 11,839,325 km (0.102 R)
• M64: 12,003,434 km (0.046 R)
• M65: 12,292,607 km (0.118 R)
• M66: 12,417,222 km (0.112 R)
• M67: 12,584,023 km (0.102 R)
• M68: 12,856,740 km (0.069 R)
• M69: 12,919,871 km (0.098 R)
• M70: 13,025,487 km (0.072 R)
• M71: 13,279,953 km (0.066 R)
• M72: 13,429,251 km (0.066 R)
• M73: 13,966,756 km (0.069 R)
• M74: 14,423,778 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796.5

Radius: 8.9

Gravity: 10.06 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.56 AU - 4.7 AU

Year: 5506 Days

Day: 9.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 51,687,982 km

• M1: 119,230 km (0.114 R)
• M2: 422,165 km (0.104 R)
• M3: 669,899 km (0.043 R)
• M4: 831,764 km (0.094 R)
• M5: 976,724 km (0.106 R)
• M6: 1,098,946 km (0.066 R)
• M7: 1,275,471 km (0.065 R)
• M8: 1,478,625 km (0.111 R)
• M9: 1,954,945 km (0.072 R)
• M10: 2,270,596 km (0.112 R)
• M11: 2,393,267 km (0.102 R)
• M12: 2,560,218 km (0.08 R)
• M13: 2,666,582 km (0.083 R)
• M14: 3,084,110 km (0.104 R)
• M15: 3,593,191 km (0.069 R)
• M16: 3,688,635 km (0.118 R)
• M17: 4,203,401 km (0.11 R)
• M18: 4,482,102 km (0.094 R)
• M19: 5,191,645 km (0.109 R)
• M20: 5,656,295 km (0.098 R)
• M21: 6,334,871 km (0.115 R)
• M22: 6,596,069 km (0.105 R)
• M23: 6,713,204 km (0.061 R)
• M24: 7,039,178 km (0.081 R)
• M25: 7,370,238 km (0.068 R)
• M26: 7,522,379 km (0.083 R)
• M27: 8,047,617 km (0.083 R)
• M28: 8,267,377 km (0.042 R)
• M29: 8,841,533 km (0.069 R)
• M30: 9,133,399 km (0.046 R)
• M31: 9,296,909 km (0.074 R)
• M32: 9,362,732 km (0.11 R)
• M33: 9,461,467 km (0.085 R)
• M34: 10,502,967 km (0.073 R)
• M35: 10,708,814 km (0.069 R)
• M36: 10,916,007 km (0.117 R)
• M37: 11,019,978 km (0.097 R)
• M38: 11,089,541 km (0.1 R)
• M39: 11,299,127 km (0.106 R)
• M40: 12,729,432 km (0.053 R)
• M41: 13,059,146 km (0.115 R)
• M42: 13,726,801 km (0.101 R)
• M43: 13,839,299 km (0.086 R)
• M44: 14,215,986 km (0.097 R)
• M45: 15,018,280 km (0.111 R)
• M46: 15,444,335 km (0.107 R)
• M47: 15,561,320 km (0.114 R)
• M48: 16,189,781 km (0.101 R)
• M49: 16,507,078 km (0.116 R)
• M50: 16,626,607 km (0.092 R)
• M51: 17,919,581 km (0.118 R)
• M52: 18,744,015 km (0.047 R)
• M53: 19,118,907 km (0.05 R)
• M54: 19,328,344 km (0.094 R)
• M55: 19,454,455 km (0.084 R)
• M56: 20,258,843 km (0.049 R)
• M57: 21,681,818 km (0.035 R)
• M58: 22,648,220 km (0.119 R)
• M59: 22,914,205 km (0.096 R)
• M60: 23,047,646 km (0.109 R)
• M61: 23,136,657 km (0.034 R)
• M62: 23,225,817 km (0.057 R)
• M63: 24,714,017 km (0.036 R)
• M64: 25,171,039 km (0.092 R)
• M65: 25,815,506 km (0.107 R)
• M66: 26,186,359 km (0.063 R)
• M67: 26,465,509 km (0.112 R)
• M68: 26,558,858 km (0.116 R)
• M69: 26,698,882 km (0.099 R)
• M70: 26,979,976 km (0.088 R)
• M71: 27,120,897 km (0.067 R)
• M72: 27,876,366 km (0.118 R)
• M73: 28,734,609 km (0.035 R)
• M74: 29,601,379 km (0.034 R)
• M75: 29,795,258 km (0.09 R)
• M76: 30,868,623 km (0.068 R)
• M77: 32,502,531 km (0.089 R)
• M78: 33,053,350 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 325

Radius: 5.1

Gravity: 12.5 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 7.46 AU - 9.54 AU

Year: 16257 Days

Day: 20.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 51,687,982 km

• M1: 71,957 km (0.086 R)
• M2: 148,999 km (0.074 R)
• M3: 231,877 km (0.116 R)
• M4: 267,481 km (0.12 R)
• M5: 318,344 km (0.115 R)
• M6: 430,842 km (0.11 R)
• M7: 711,188 km (0.079 R)
• M8: 999,164 km (0.05 R)
• M9: 1,060,799 km (0.112 R)
• M10: 1,275,621 km (0.073 R)
• M11: 1,504,057 km (0.073 R)
• M12: 1,769,892 km (0.098 R)
• M13: 1,895,704 km (0.102 R)
• M14: 1,972,598 km (0.115 R)
• M15: 2,825,904 km (0.073 R)
• M16: 2,972,958 km (0.059 R)
• M17: 3,092,637 km (0.114 R)
• M18: 3,460,797 km (0.109 R)
• M19: 3,523,479 km (0.097 R)
• M20: 3,618,324 km (0.101 R)
• M21: 4,038,694 km (0.094 R)
• M22: 5,318,055 km (0.11 R)
• M23: 5,536,468 km (0.085 R)
• M24: 5,794,973 km (0.047 R)
• M25: 6,095,365 km (0.066 R)
• M26: 6,209,209 km (0.076 R)
• M27: 6,439,141 km (0.034 R)
• M28: 7,630,389 km (0.084 R)
• M29: 8,377,182 km (0.11 R)
• M30: 8,801,890 km (0.067 R)
• M31: 9,017,012 km (0.097 R)
• M32: 9,496,174 km (0.109 R)
• M33: 9,540,155 km (0.054 R)
• M34: 9,628,418 km (0.094 R)
• M35: 10,118,052 km (0.037 R)
• M36: 10,298,168 km (0.115 R)
• M37: 10,798,722 km (0.041 R)
• M38: 14,316,367 km (0.094 R)
• M39: 14,976,841 km (0.104 R)
• M40: 15,699,249 km (0.025 R)
• M41: 16,012,358 km (0.104 R)
• M42: 16,591,601 km (0.061 R)
• M43: 16,750,773 km (0.025 R)
• M44: 17,231,431 km (0.05 R)
• M45: 17,338,842 km (0.106 R)
• M46: 17,879,190 km (0.029 R)
• M47: 18,151,458 km (0.085 R)
• M48: 18,425,072 km (0.115 R)
• M49: 18,479,975 km (0.066 R)
• M50: 18,700,033 km (0.098 R)
• M51: 19,421,394 km (0.098 R)
• M52: 19,589,243 km (0.095 R)
• M53: 20,151,880 km (0.103 R)
• M54: 20,435,219 km (0.1 R)
• M55: 20,548,913 km (0.054 R)
• M56: 20,891,343 km (0.069 R)
• M57: 21,005,785 km (0.098 R)
• M58: 21,871,508 km (0.079 R)
• M59: 22,396,596 km (0.045 R)
• M60: 22,631,315 km (0.049 R)
• M61: 23,043,906 km (0.098 R)
• M62: 24,176,362 km (0.094 R)
• M63: 24,296,639 km (0.101 R)
• M64: 24,477,503 km (0.105 R)
• M65: 25,939,672 km (0.089 R)
• M66: 26,001,157 km (0.064 R)
• M67: 27,743,823 km (0.096 R)
• M68: 27,932,765 km (0.119 R)
• M69: 27,995,895 km (0.105 R)
• M70: 28,059,025 km (0.107 R)
• M71: 28,629,143 km (0.07 R)
• M72: 28,756,451 km (0.097 R)
• M73: 29,139,272 km (0.117 R)
• M74: 30,362,833 km (0.078 R)
• M75: 30,948,209 km (0.103 R)
• M76: 31,013,434 km (0.114 R)
• M77: 31,602,999 km (0.077 R)
• M78: 32,262,277 km (0.043 R)
• M79: 32,992,763 km (0.077 R)
• M80: 33,863,124 km (0.117 R)
• M81: 35,012,634 km (0.098 R)
• M82: 37,697,766 km (0.057 R)
• M83: 40,234,347 km (0.071 R)
• M84: 40,590,989 km (0.08 R)
• M85: 41,163,799 km (0.113 R)
• M86: 42,462,458 km (0.083 R)
• M87: 42,898,237 km (0.043 R)
• M88: 43,627,975 km (0.106 R)
• M89: 46,962,063 km (0.08 R)
• M90: 47,864,886 km (0.118 R)
• M91: 48,167,223 km (0.06 R)
• M92: 48,318,467 km (0.064 R)
• M93: 48,621,702 km (0.077 R)
• M94: 50,607,613 km (0.072 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: 358 - 11,253 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit