Clasification of astronomical centaurs

The main orbital feature of the astronomical centaurs is its high eccentricity. Most of the astronomical centaurs are objects with orbits in transition. Their orbits are unstable because they cross the orbits of the giant planets without being protected by resonances. Their astronomical lives are of the order of 10 to 100 million years; very short, although spectacular.

There are six types of astronomical centaurs due to the situation of its perihelion, aphelion and semimajor axis:

1. Survival centaurs, they are related to the physical body, biological functions and also with emotions and the survival instinct. Their orbits are connected to the Earth-Moon system, Mars and the main belt.
2. Classical centaurs I, they are related to self-control and self-regulation capabilities. Their orbits are connected to Jupiter and Saturn.
3. Classical centaurs II, they are related with the incorporation of the new in a safe way. Their orbits are connected to Saturn and Uranus.
4. Classical centaurs III, they are related to innovation and esotericism, empathic understanding and mysticism. Their orbits are connected to Uranus and Neptune.
5. Cyborg centaurs (half machine, half human), they are related to robotics, telematics and informatics. Their orbits are connected to the Kuiper belt.
6. Aquatic centaurs, they are related to emotional and social intelligence and anthropology. Their orbits are connected to the scattered disc.
7. Spiritual centaurs, they are related to intuition and spiritual awareness. Their orbits are connected to the inner Oort cloud.

How to use 'NASA HORIZONS Ephemeris' for objects, centaurs and asteroids that are not numbered

The 'NASA HORIZONS Ephemeris' gives the zodiac position in the basis horoscope for objects that are not numbered:

http://ssd.jpl.nasa.gov/horizons.cgi

1. Select 'Target Body', typing the body name without spaces, like '1994TA'. 

2. Change the 'Time Span', adding the time in 24 hour format.

3. Select 'Table Settings'. Removes all the check boxes selected and adds the '31' ('Observer ecliptic lon. & Lat.) to get the longitude and latitude. Optionally add the box '2' ('Apparent RA & DEC') to obtain the right ascension and declination as well.

4. 'Generate Ephemeris'.

Example:

 2009-May-12 17:04      81.1065564  -4.2626825
 2009-May-13 17:04      81.1548190  -4.2605865
 2009-May-14 17:04      81.2034023  -4.2585392
 2009-May-15 17:04      81.2522938  -4.2565409
 2009-May-16 17:04      81.3014822  -4.2545920
 2009-May-17 17:04      81.3509576  -4.2526927 

In this example, the result for the object 1994 TA at 2009-05-12 17:04, is 81.1065564 (in relation to 0º Aries), which means that 1994 TA is at 21º06' Gemini:

 

♈ = 0º; ♉ = 30º; ♊ = 60º; ♋ = 90º; ♌ = 120º; ♍ = 150º; ♎ = 180º; ♏ = 210º; ♐ = 240º; ♑ = 270º; ♒ = 300º; ♓ = 330º. 

 

• 81º is between 60º and 90º => Gemini sign
• 81º - 60º = 21º degrees
• 0.1065564 x 60 = 6' minutes.

 

When the orbit is well known, the object is finally assigned to a permanet number and we can use 'Serennu Ephemeris' or 'True-Node Ephemeris'.