Another Nova in Sagittarius

[Terry Bohlsen]

Dear All.
Another nova candidate has been announced on CBAT in Sagittarius called PNV J18193700-1907400
It is only about V =12.7 so quite dim.
I took 30 minutes of spectra of it before I got clouded out. It shows Ha emission but not much else. Enough to confirm that it is a nova though.
http://users.northnet.com.au/~bohlsen/N ... tarius.htm

Terry Bohlsen

[Terry Bohlsen]

The nova is now called NOVA SAGITTARII 2012 No. 5

see http://www.cbat.eps.harvard.edu/iau/cbe ... 003184.txt

Terry

[Francois Teyssier]

Excellent Terry.
I have to update the aras page
A fireworks of novae this year

Best regards

François (always under the clouds)

[Christian Buil]

Good job Terry !
At V=12.7 the object become seriously faint.

Christian

[Francois Teyssier]

Tonight spectrum
The nova stil rises (Mag V = 11.2 from AAVSO)
The FeII lines appears

_nova2012sgr5_20120722_871.png (4.04 KiB) Viewed 16730 times

François

[Terry Bohlsen]

Very good. I wasn't going to bother taking anymore but if it is still rising it might be worth it if I ever get a clear night again.

Terry

[Christian Buil]

At the same moment as François Teyssier acquisition, the observation of nova
from Toulouse (south of France) (C11 + LISA 23 microns slit + Atik314L+).

The field from the LISA guiding camera (Atik314L+ camera) - 20 sec. exposure :



The spectrum (12x 300 sec exposure):



Christian B

[Christian Buil]

Un nouveau spectre (23.8 juillet). La nova monte d'éclat
et l'intensité relative de Halpha diminue. On note aussi l'apparition
d'un profil P-Cyg sur l'hydrogène entre-autre :



Christian

[Terry Bohlsen]

I took further spectra of this nova on 25th and 29th July. I also took photometry of it on 29th giving a V mag of 11.0 and R = 10.39.
More into here
http://users.northnet.com.au/~bohlsen/N ... tarius.htm

There was a very rapid increase in the intensity of the Ha line over the 4 days.

_novasgr2012no5_20120725_474.png (6.54 KiB) Viewed 16618 times

_novasgr2012no5_20120729_466.png (5.43 KiB) Viewed 16618 times