Comets - 136P/Mueller - 0136P
Type Periodic Perihelion Date 31 May 2016 Perihelion Distance (q) 3.0 Aphelion Distance (Q) 5.4 Period (Years)   8.6 Eccentricity (e)   0.29 Inclination (i)   9.4 Click for NASA orbit diagram
Hills Observatory: 1 January 2013 to 2 December 2018
COMETS COMETS
DEEP SKY DEEP SKY
The comet was discovered by Jean Mueller at Palomar Observatoryd on 24 and 25 September 1990 in the course of the second Palomar Sky Survey. She estimated the magnitude as 18 and noted a faint tail extending westward.  The comet remained at about magnitude 17.5 until mid-October. The comet was recovered by James V. Scotti (Lunar and Planetary Laboratory) on 24 May 1998 with the 0.91-m Spacewatch telescope on Kitt Peak at magnitude 21. It was recovered again in the apparition of 2007 by L. Donato, E. Guido, and G. Sostero (Remanzacco Observatory, Italy) on 21 July.  Using a 45-cm Newtonian reflector and a CCD camera they observed a coma about 20" across and a broad tail nearly 15" long toward the southwest. The total magnitude was about 18.3, while the nuclear magnitude was about 18.9. An independent recovery was made by F. Fratev (Zvezdno Obshtestvo Observatory, Plana, Bulgaria) on images obtained on 22 July, using a 25-cm reflector and a CCD camera. They gave the nuclear magnitude as about 18.9. Date 10x10 mag Error Kphot mag Coma ' 30-Aug-16 18.21 0.09 17.0 0.2 06-Sep-16 18.25 0.04 17.1 0.2 25-Sep-16 18.02 0.08 16.5 0.2 02-Oct-16 17.92 0.04 16.6 0.2 28-Oct-16 17.68 0.02 16.5 0.2 22-Nov-16 18.10 0.02 16.1 0.2 19-Dec-16 18.75 0.16 18.0 0.2
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