* Astronomy

Rob H. McNaught (Siding Spring) discovered on October 09, 2007 a new comet,  C/2007 T1,  at magnitude 12.5.
The discovery of C/2007 T1, was quickly confirmed by other observers. With this discovery Rob McNaught  has now   38 comets to his credit.
The preliminary orbital elements of the comet C/2007 T1 (McNaught) indicate a perihelion passage  around  November 23, 2007 at a distance of 0.3 AU of the Sun.
It should be noted that the orbit was defined only by 53 observations spread over only a few  hours; therefore the predicted orbit is likely to change after more observations.

Orbit  

C/2007 T1 (McNaught)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1   
2007 10 07    17 20.04   -07 50.8    1.537    1.477    67.4    38.7  13.1
2007 10 12    17 16.65   -11 26.7    1.589    1.419    61.6    38.2  13.0
2007 10 17    17 14.01   -14 48.5    1.640    1.363    56.0    37.3  12.9
2007 10 22    17 11.99   -17 58.1    1.690    1.308    50.6    36.0  12.8
2007 10 27    17 10.46   -20 57.1    1.736    1.256    45.4    34.3  12.7
2007 11 01    17 09.33   -23 47.6    1.777    1.207    40.4    32.2  12.6
2007 11 06    17 08.51   -26 31.2    1.813    1.160    35.6    29.8  12.4
 
2007 12 26    17 04.27   -53 15.0    1.680    1.007    32.8    32.0  11.7
2007 12 31    17 03.49   -56 32.9    1.616    1.030    37.6    35.6  11.7
2008 01 05    17 02.36   -60 09.1    1.546    1.060    42.7    39.0  11.7
2008 01 10    17 00.54   -64 08.3    1.472    1.095    48.1    41.9  11.7
2008 01 15    16 57.27   -68 36.0    1.396    1.136    53.7    44.3  11.8