Comet 177P/Barnard

Toni Scarmato’ Observatory

Lat. 38° 42’ 00” N – Long. 16° 00’ 42” E – 186 m above the sea level

Astronomical Association San Costantino di Briatico (VV)

CARA Project Comet Section UAI

 

 

 

177P/Barnard

Orbital Elements

The following orbital elements are taken from MPC 57134:

177P/Barnard
Epoch 2006 Aug. 13.0 TT = JDT 2453960.5
T 2006 Aug. 28.6884 TT                                  MPC
q   1.107215             (2000.0)            P               Q
n   0.0082384      Peri.   60.4608      +0.7613389      +0.3899870
a  24.279480       Node   272.0664      -0.6067923      +0.7100140
e   0.954397       Incl.   31.2175      +0.2283992      +0.5863362
P 120
From 187 observations 1889-2006, mean residual 0".7.

Elements are also available for the current standard epoch:

 

177P/Barnard
Epoch 2006 Sept. 22.0 TT = JDT 2454000.5
T 2006 Aug. 28.6889 TT                                  MPC
q   1.107215             (2000.0)            P               Q
n   0.0082382      Peri.   60.4619      +0.7613425      +0.3899827
a  24.279907       Node   272.0658      -0.6067855      +0.7100222
e   0.954398       Incl.   31.2173      +0.2284054      +0.5863292
P 120
 
 

The plot of the afrho value show an increase of about 15% from July 17 (left) to July 20 (right).  Also the CCD Unfiltered magnitude increase of about 0.3 magnitude.

Unfortunately the stars in the field add an error to the measures, but compared with visual observation, this data shown that the comet can to be in continue activity (no outburst!!!).

 

 

 

Visual magnitude in ICQ format:

Comet 2006M3
2006 Jul. 13.86, 13.1, +0.9' (T. Scarmato, Calabria, Italy, 0.25 - m reflector + CCD unfiltered)

2006 Jul. 17.84, 10.2, +5.5' (T. Scarmato, Calabria, Italy, 0.25 - m reflector + CCD unfiltered)

2006 Jul. 17.84, 10.0, 8' (T. Scarmato, Calabria, Italy, 0.08-m refractor) [ Low DC=2]

2006 Jul. 20.86, 9.9, +5.5’ (T. Scarmato, Calabria, Italy, 0.25 – m reflector + CCD unfiltered)

2006 Jul. 20.86, 9.0, 12’ (T. Scarmato, Calabria, Italy, 0.08 – m refractor) [Low DC=2]

2006 Jul. 22.85, 10.0, +5.5’ (T. Scarmato, Calabria, Italy, 0.25 – m reflector + CCD unfiltered)

2006 Jul. 22.85, 8.7, +9’ (T. Scarmato, Calabria, Italy, 7x50 binoculars)

 

 

Updated………………. 2006 July 23

 

Other Informations:

 Comet section UAI  - C.A.R.A. (http://www.uai.it)

Seiichi Yoshida Home Page (http://www.aerith.net)

C.O.H.P (http://www.cometobservation.com/)

ICQ (http://cfa-www.harvard.edu/cfa/ps/cbat.html)

COCD (http://www.comethunter.de/)

BAA (http://www.ast.cam.ac.uk/~jds/)