D I S C O V E R Y IN FRENCH

 

The beginning of the search of SN has started in the night of 16th to 17th January , after about a hundred hours of surveillance over more 300 galaxies , the out-come of our labours have been rewarded , as in the night of 7 to 8 an apparent supernova has been detected in NGC4965 .

After comparing the image to that of DSS , http://130.167.1.148/dss/dss_form.html , the star was always valid , then the test on the site of UAI http://cfaps8.harvard.edu/~cgi/CheckSN.COM for the asteroids does not put it in the known asteroids , I had to make another image to observe if the object was always here and if it had possibly moved , that had been made in the following night : on March 8/9th ; the futur SN was always present .

The mesures made on the first image give a magnitude 14.07 +/-0.04 ( mesure ccd unfiltered and reference USNOSA2 ) and a position to Alpha = 13h07m10.56s Delta = -28° 14' 02.59" that gives an offset in the center of the host of 11.4"E et 25.6"S .

The confirmation was made on March 9th in the morning by Observatoire du Pic du Midi , ringing up Francois Colas at the beginning of the night on March 8th .

The galaxie of type Sc , size 2.9' by 2.7' is far-off 100Millions Al .

The SN is very bright , its discovery relatively late indicates very well the potential of objects to discover in the South Hemisphere where search programmes are nearly non-existant .

We , amateurs can go on ahead

Discovery Iimage March 8th 00h38 UT

180s LX200 12" f/d 2.7

Camera ST7E

Mccd 14.07CR +/-0.04

 

Confirmation Image Observatoire Pic du Midi

F. Colas

March 9th

Telescope 1m Focale 6300mm

Mccd 14.57R

 

Reference Image DSS

http://130.167.1.148/dss/

 

Thanks to the team of Pic du Midi and particularly F. Colas

 

                                                  Circular No. 7378
Central Bureau for Astronomical Telegrams
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SUPERNOVA 2000P IN NGC 4965
     F. Colas, Institut de Mecanique Celeste, Paris, and
Observatoire du Pic du Midi, reports the discovery by Robin
Chassagne (Sainte Clotilde, Ile de Reunion) of an apparent
supernova (unfiltered mag 14.1) on a 180-s exposure taken with a
0.30-m telescope (+ ST-7E CCD camera) on Mar. 8.03 UT.  Colas
confirmed the presence of SN 2000P (R = 14.5) with the 1.05-m
telescope at Pic du Midi on Mar. 9.12, noting that the new object
does not appear on the Digital Sky Survey (limiting mag about 21);
he measured the position of SN 2000P as R.A. = 13h07m10s.53, Decl.
= -28o14'02".5 (equinox 2000.0), which is 16" east and 21" south of
the center of NGC 4965.  Chassagne measured position end figures
10s.56, 02".6.  H. Yamaoka, Kyushu University, also reports the
following position end figures measured from the discovery image:
09s.88, 13'59".3.