[BAA-ebulletin 00848] Recent novae and supernovae

[BAA electronic bulletins service]

There's been a plethora of new objects reported recently, mainly
novae, but also one supernova.

PSN J07361576-6930230 = SN 2015F
Discovered on 2015 March 09.789 by Berto Monard in NGC 2442 at R.A. =
07h36m15s.76, Decl. = -69°30'23".0.  Latest estimates have it around
magnitude 13.3V. Martin Mobberley has uploaded an image here:
http://martinmobberley.co.uk/images/psnj07361576-6930230_20150322_mpm.jpg


NOVA SAGITTARII 2015 NO. 2 = PNV J18365700-2855420
Discovered by John Seach, Chatsworth island, NSW, Australia on 2015
March 15.63UT at magnitude 6.0 using a DSLR and 50mm f/1.0 lens. The
object is located at: RA 18h 36m 56.84s DEC -28 55' 39.8" (2000). An
optical spectrum by S. C. Williams of Liverpool John Moores University
obtained 2015 March 16.27 UT using the FRODOspec spectrograph on the
Liverpool Telescope indicates N Sgr 2015 No. 2 is a classical Fe II
nova. Recent observations report it at around magnitude 5.0.

PNV J18142514-2554343
Discovered by Hideo Nishimura (Shizuoka-ken, Japan), Koichi Nishiyama
(Kurume, Japan) and Fujio Kabashima (Miyaki, Japan) at an unfiltered
magnitude of around 11. It is located at: RA 18h14m25.24s DDEC -25 54'
32.6" (2000). Echelle spectra by Frederick Walter (Stony Brook
University) taken on the night of 2015 February 15/16 near maximum
light indicate that N Sgr 2015 is a classical Fe II nova. Latest
observations have it at around magnitude 11.6.

BRIGHT TRANSIENT IN SCO (PNV J17032620-3504140)
Elizabeth Waagen reports on AAVSO Special Notice 397 the announcement
on the CBAT Transient Object Confirmation Page (TOCP) of the discovery
of a bright transient in Scorpio. Tadashi Kojima (Japan) detected the
transient on 2015 February 11.836UT at unfiltered CCD magnitude 8.2
using a 150-mm f/2.8 lens + a digital camera. It is located at: RA 17h
03m 26.20s DEC -35 04'14.0" 2000). Frederick Walter, Stony Brook
University reports on ATEL 7060 an observation with the Chiron Echelle
Spectrograph on the SMARTS/CTIO 1.5m on 2015 February 13 at 09:38UT.
This confirms that this object is a nova.  Current observations show
it at around magnitude 13.6V.

PNV J17291350-1846120
Discoverer: Yukio Sakurai, Ibaraki-ken, Japan R.A. 17h29m13.50s
Decl. -18°46'12.0" (J2000.0) 2015 March 29.766 UT, 12.2 mag (CCD,
unfiltered).  Latest observations show it to be at magnitude 11.9V. A
discovery image can be seen at:
http://www.oaa.gr.jp/~oaacs/image/PnovaOph.jpg. According to
Fujii-san, Balmer lines with P Cyg-type profile (1900km/s) were
observed. He I (5048A, 5876A, 6678A, 7065A) and N II
(5001A, 5479A, 5679A, 5938A) were also in emission. N III (4640A) and
O I (7773A) might be present. The nova appears to be a He/N-type one.

PNV J20145000+1903300
Discoverer: Akihiko Tago, Okayama-ken, Japan R.A. 20h14m52.98s Decl.
+19°03'52.2" (J2000.0) 2015 March 21.758 UT, 8.5 mag (CCD, unfiltered)
Patrick Schmeer notes on vsnet-alert 18475 that the object is NOT a
nova.

The charts for many of these objects may be created using the AAVSO
Variable Star Plotter (VSP) at http://www.aavso.org/vsp.

roger.pickard at sky.com
31st March 2015