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Comet 17P/Holmes

Comet 17P/Holmes. Dr. Harold Williams Montgomery College Planetarium http://Montgomerycollege.edu/Departments/planet/. 1892 image of Comet Holmes. What is know about the Comet.

dylan-williamson
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Comet 17P/Holmes

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  1. Comet 17P/Holmes Dr. Harold Williams Montgomery College Planetarium http://Montgomerycollege.edu/Departments/planet/

  2. 1892 image of Comet Holmes

  3. What is know about the Comet • Period of orbit around the sun, t=6.88 years, semi-major axis distance, s=3.617 AU, t2=s3 Kepler’s third law for the sun in years and AUs. • Perihelion, p=2.053 AU, closest to the sun. Aphelion, a=5.18 AU, furthers to the sun, so eccentricity, e=(a-p)/(a+p)= 0.43241 • Last Perihelion date May 4, 2007, next perihelion date March 23, 2014. • Ellipse Article in Wikipedia http://en.wikipedia.org/wiki/Ellipse

  4. 6 elements needed to define a ballistic free fall orbit around the sun. The following orbital elements are taken from MPC 51822: Epoch 2007 May 20.0 TT = JDT 2454240.5 T 2007 May 4.4995 TT MPC q 2.053169 (2000.0) P Q n 0.1432508 Peri. 24.2585 +0.9756506 +0.1267918 a 3.617468 Node 326.8675 -0.2124462 +0.7491399 e 0.432429 Incl. 19.1132 +0.0545208 +0.6501640 P 6.88 From 139 observations 1964-2001, mean residual 0".7. Nongravitational parameters A1 = +0.19, A2 = +0.0287.

  5. Wikipedia article on Apsis

  6. What makes this comet so Special

  7. Resent magnitude history

  8. What astronomer use to find comets!

  9. More detailed chart

  10. Some useful Links • Wikipedia Articlehttp://en.wikipedia.org/wiki/Comet_Holmes • Seiichi Yoshida (comet@aerith.net) http://www.aerith.net/comet/catalog/0017P/2007.html • Solar System Dynamics JPL, Comet 17P/Holmeshttp://ssd.jpl.nasa.gov/sbdb.cgi?sstr=17P;orb=1 • Gary W. Kronk’s Cometography http://www.cometography.com/pcomets/017p.html

  11. Prettiest Image I have seen!

  12. http://www.astro.umontreal.ca/~casca/PR/holmes_I.png

  13. http://www.astro.umontreal.ca/~casca/PR/holmes_J.png

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