Difference between revisions of "1620 Geographos"

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(1998 KY26)
Tag: Removed redirect
(→‎Geographos in Orbiter: Added content.)
 
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{| cellpadding="2" cellspacing="0" style="margin:25px 0 0 10px; border:3px solid lightsteelblue;width:250px; font-size:100%; font-family:'Arial','Helvetica'; float: right; clear: right;"Template in Orbiter"
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{| cellpadding="2" cellspacing="0" style="margin:25px 0 0 10px; border:3px solid lightsteelblue;width:250px; font-size:90%; font-family:'Arial','Helvetica'; float: right; clear: right;"Template in Orbiter"
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!bgcolor="lightsteelblue" colspan="2" align="center" |1998 KY26
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!bgcolor="lightsteelblue" colspan="2" align="center" |1620 Geographos
 
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|colspan="2" align="center"|[[Image:1998 KY26.png|240px]]
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|colspan="2" align="center"|[[Image:1620 Geographos.png|240px]]
 
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|colspan="2" align="center"|'''1998 KY26 in Orbiter'''
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|colspan="2" align="center"|'''Geographos in Orbiter'''
 
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!bgcolor="lightsteelblue" colspan="2"|Designation
 
!bgcolor="lightsteelblue" colspan="2"|Designation
 
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|Name||align="right"|1998 KY26
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|Name||align="right"|1620 Geographos
 
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|Reference body||align="right"|Sun
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|width="30%"|Reference body||align="right" width="30%"|Sun
 
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|Number of satellites||align="right" width="30%"|0
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|width="30%"|Number of satellites||align="right" width="30%"|0
 
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|-
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!bgcolor="lightsteelblue" colspan="2"|Planetary mean orbit
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!bgcolor="lightsteelblue" colspan="2"|Planetary mean orbits
 
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|-
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|Epoch||align="right"|2006
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|width="30%"|Epoch||align="right" width="50%"|2006
 
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|-
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|Semimajor axis (a)||align="right" |1.23215341107285 AU <br> (1.84327526661×10<sup>11</sup> km)
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|width="30%"|Semimajor axis (a)||align="right" width="50%"| 186315638173 km<br>(1.24544311568598 AU)
 
|-
 
|-
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|Eccentricity (e)||align="right"|0.201480667262534
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|width="30%"|Eccentricity (e)||align="right" width="30%"| 0.335415102834536
 
|-
 
|-
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|Inclination (i)||align="right"|1.48112033563244°<br>(0.0258504264750296 radian)
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|width="30%"|Inclination (i)||align="right" width="30%"|0.232845464045468 radian<br>(13.3410623685705°)
 
|-
 
|-
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**
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|width="30%"|Longitude of the ascending node (LAN, ☊)||align="right" width="30%"|5.88689533166951 radian<br>337.29425693993°
 
|-
 
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|Longitude of the ascending node (LAN, ☊)||align="right"|48.33167° <br> (0.8436468 radian)
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|width="30%"|Longitude of periapsis (ϖ)||align="right" width="30%"|10.7178284350264 radian<br>614.086334872317°
 
|-
 
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|Longitude of periapsis (ϖ)||align="right"|77.45645° <br> (1.351870 radian)
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|width="30%"|Mean longitude (L)||align="right" width="30%"|12.5060362286656 radian<br>716.543094340244°
 
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|-
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|Mean longitude (L)||align="right"|252.25084° <br> (4.402608 radian)
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!bgcolor="lightsteelblue" colspan="2"|Rotational Elements
 
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|-
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!bgcolor="lightsteelblue" colspan="2"|Planetary orbital element centennial rates
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|width="30%"|Sidereal Rotation Period||align="right" width="50%"|18802.8 seconds<br>(5.223 hours)
 
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|-
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|Semimajor axis (a)||align="right"|0.00000066 AU/Century
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|width="30%"|Sidereal Rotation Offset||align="right" width="50%"|0
 
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|-
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|Eccentricity (e)||align="right"|0.201480667262534
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|width="30%"|Obliquity||align="right" width="30%"|0.1 radians<br>0°
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|-
 
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|Inclination (i)||align="right"|0.102690286265441 radian (
 
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|-
 
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|Longitude of the ascending node (LAN, ☊)||align="right"|-446.30 seconds/Century
 
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|-
 
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|Longitude of periapsis (ϖ)||align="right"|573.57 seconds/Century
 
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|-
 
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|Mean longitude (L)||align="right"|538101628.29 seconds/Century
 
 
|-
 
|-
 
!bgcolor="lightsteelblue" colspan="2"|Selected physical parameters
 
!bgcolor="lightsteelblue" colspan="2"|Selected physical parameters
 
|-
 
|-
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|width="30%"|Mean radius||align="right"|2440 km
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|width="30%"|Mean radius||align="right" width="30%"| 3450 m
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|-
 
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|Mass||align="right"|3.301880×10<sup>23</sup> kg
 
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|-
 
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|Density||align="right"|5.427 g/cm<sup>3</sup>
 
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|-
 
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|Sidereal rotation period||align="right"|1407.509 hours
 
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|-
 
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|Sidereal orbit period||align="right"|0.2408445 years
 
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|-
 
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|Magnitude V(1,0)||align="right"|-0.42
 
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|-
 
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|Geometric albedo||align="right"|0.106
 
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|-
 
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|Equatorial gravity||align="right"|3.701 m/s<sup>2</sup>
 
 
|-
 
|-
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|Escape velocity||align="right"|4.435 km/s
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|width="30%"|Mass||align="right" width="30%"|4×10<su>12</sup> kg
 
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|SOI radius (estimated)||align="right"|28385 km
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|width="30%"|Equatorial gravity||align="right" width="30%"|0.000022 m/s<sup>2</sup>
 
|-
 
|-
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!bgcolor="lightsteelblue" colspan="2"|Rotation elements
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|width="30%"|Escape velocity||align="right" width="30%"| 0.0004 m/s
 
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|North pole right ascension (α<sub>1</sup>)||align="right"|280.99°
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|width="30%"|Gravity at surface||aligh="right" width="30%"|Geographos 1%<br>Sun 99%
 
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|North pole declination (δ<sub>1</sup>)||align="right"|61.44°
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|width="30%"|Note||align="right" width="30%"|*Elements given are from Geographos.cfg file.
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|Obliquty of ecliptic||align="right"|7.01°
 
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|-
 
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|Longitude of Sun's transit||align="right"|228.31°
 
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|-
 
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|Note||align="right"|*Elements given are from Orbiter.pdf (2016)
 
 
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'''1620 Geographos''' is a Near-Earth object discovered in 1951 by [[w:Albert George Wilson|Albert George Wilson]] and [[w:Rudolph Minkowski]] at [[w:Palomar Observatory|Palomar]] and is named in honor of the [[w:National Geographic Society]].
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Geographos was to be visited by the [[w:Clementine mission]], failed to reach the body.
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== Geographos in Orbiter ==
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1620 Geographos was modeled in Orbiter as a somewhat potato shaped object about 5 km on the longest dimension. Because the visual surface of Geographos is well below the hard radius of the body, landing anywhere on the body's radius you end up well above the visual surface. Because even at the surface, geographos only provides 1% of the local gravity, the [[Sun]] providing the other 99%, a ship cannot orbit Geographos, it can only fly along with it in solar orbit, maneuvering in its vicinity. A ship also cannot land and remain  on the hard surface, it will immediately drift off the surface. When maneuvering in the vicinity, have SurfaceMFD up so that the pilot can monitor the ship's altitude above the surface.
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== Gallery ==
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<gallery widths="200" heights="200">
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Animation_of_1620_Geographos_orbit.gif|Animation of the orbit of Geographos as compared to [[Venus]], [[Earth]] and [[Mars]] from 2010 to 2020.<br>From Wikimedia Commons.
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</gallery>
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{{SolarSystem}}
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[[Category:Articles|Geographos]]
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[[Category:Celestial bodies|Geographos]]
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[[Category:Solar System|Geographos]]
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[[Category:Near-Earth objects|Geographos]]

Latest revision as of 03:24, 27 May 2024

1620 Geographos
1620 Geographos.png
Geographos in Orbiter
Designation
Name 1620 Geographos
Reference body Sun
Number of satellites 0
Planetary mean orbits
Epoch 2006
Semimajor axis (a) 186315638173 km
(1.24544311568598 AU)
Eccentricity (e) 0.335415102834536
Inclination (i) 0.232845464045468 radian
(13.3410623685705°)
Longitude of the ascending node (LAN, ☊) 5.88689533166951 radian
337.29425693993°
Longitude of periapsis (ϖ) 10.7178284350264 radian
614.086334872317°
Mean longitude (L) 12.5060362286656 radian
716.543094340244°
Rotational Elements
Sidereal Rotation Period 18802.8 seconds
(5.223 hours)
Sidereal Rotation Offset 0
Obliquity 0.1 radians
0°
Selected physical parameters
Mean radius 3450 m
Mass 4×10<su>12 kg
Equatorial gravity 0.000022 m/s2
Escape velocity 0.0004 m/s
Gravity at surface Geographos 1%
Sun 99%
Note *Elements given are from Geographos.cfg file.

Project home: Asteroid Pack 1.00
Author: Nighthawke
Current version: 2004-11-21
Compatibility: All versions


1620 Geographos is a Near-Earth object discovered in 1951 by Albert George Wilson and w:Rudolph Minkowski at Palomar and is named in honor of the w:National Geographic Society.

Geographos was to be visited by the w:Clementine mission, failed to reach the body.

Geographos in Orbiter[edit]

1620 Geographos was modeled in Orbiter as a somewhat potato shaped object about 5 km on the longest dimension. Because the visual surface of Geographos is well below the hard radius of the body, landing anywhere on the body's radius you end up well above the visual surface. Because even at the surface, geographos only provides 1% of the local gravity, the Sun providing the other 99%, a ship cannot orbit Geographos, it can only fly along with it in solar orbit, maneuvering in its vicinity. A ship also cannot land and remain on the hard surface, it will immediately drift off the surface. When maneuvering in the vicinity, have SurfaceMFD up so that the pilot can monitor the ship's altitude above the surface.

Gallery[edit]

  • Animation of the orbit of Geographos as compared to Venus, Earth and Mars from 2010 to 2020.
    From Wikimedia Commons.

edit The Solar System
Central star

Sun (Sol)

Planets

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Natural satellites

Moon - Phobos - Deimos - Io - Europa - Ganymede - Titan - more...

Add-ons

Planets - Dwarf Planets - Small objects - Natural satellites - Alternative star systems

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