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(19155) Lifeson

Minor planet number 19155 has been named in honor of Alex Lifeson, guitarist with Rush.

The citation announcing the naming appeared on Minor Planet Circular 60299 (issued on 2007 July 30), from which the following is extracted with permission:

(19155) Lifeson = 1990 SX3                                                      
     Discovered 1990 Sept. 22 by B. Roman at Palomar.                           
     Alex Lifeson (Alexander Zivojinovich, b. 1953) is the guitarist for the    
Canadian band Rush.  Cofounder of the band, he is an integral part of the Rush  
sound.  Along with his band mates, Alex is an Officer of the Order of Canada.   
Read about how minor planets are named.

About (19155) Lifeson

(19155) Lifeson is in a 4.16-year elliptical orbit around the sun ranging in distance from 302.8 million km (at perihelion, closest point to the sun) to 470.9 million km (at aphelion, furthest point from the sun).

The next perihelion passage will occur on 2011 July 11.0 UT.

The orbit is inclined by 12.3 degrees to the ecliptic plane (the plane of the earth's orbit about the sun).

There is little information on the physical properties of (19155) Lifeson. Even its diameter is uncertain--a range of 6 to 14 km is probable.

You will need a telescope to see this minor planet as its maximum brightness is some 1/2971 of the brightness of the faintest objects that can be seen with the unaided eye.

The diagram below show the orbit of (19155) Lifeson in relation to the major planets in the inner solar system.

Orbit diagram

This view of the inner solar system is seen from the north ecliptic pole. The sun is the yellow star at the center of the image. The blue orbits represent, in increasing distance from the center, the major planets Mercury, Venus, Earth, Mars and Jupiter. The position of each major planet at the date indicated at the bottom of the plot is shown by the large circled cross. The orbit of the minor planet is shown in red, with the location of the minor planet (at the date indicated at the bottom of the plot) shown as a white circled cross. From this vantage point the planets revolve around the sun in a counter clockwise direction. The vernal equinox is off to the right. The portion of the minor planet's orbit that is below the plane of the earth's orbit is shaded grey. The perihelion point of the minor planet's orbit is at the end of the white straight line through the sun indicated by "P".

Also available is information on provisional designations.

Where is (19155) Lifeson tonight? Customisable ephemerides are available.

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