C/2006 P1 ( McNaught )
It will pass only 0.17 A.U. from the sun in mid January, and reach to 1 mag. It had been visible visually in the evening low sky until mid November. But it is not observable now. However, Michael Jager and Gerald Rhemann succeeded to catch it using their CCD camera. The comet is 6.5-7.0 mag, brightening as expected. When the comet reaches to 1 mag, it is not observable on the earth, but it will be visible in the SOHO/LASCO images. In the Southern Hemisphere, it appears at 3.5-4 mag in late January, then it keeps observable while fading gradually. In the Northern Hemisphere, it will never be observable again.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 17 53.05 -10 19.7 1.794 0.871 13 6.5 18:20 ( 82, -7)
Dec. 23 18 10.76 -9 15.0 1.611 0.701 14 5.8 18:23 ( 85, -9)
吉田最新资料
12月16日发布
Magnitudes Graph
m1 = 4.0 + 5 log d + 17.5 log r [ ,-49] ( - 2006 Nov. 24)
m1 = 5.5 + 5 log d + 5.0 log r [-49, 49] (2006 Nov. 24 - 2007 Mar. 2)
m1 = 4.0 + 5 log d + 17.5 log r [ 49, ] (2007 Mar. 2 - ) |