------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2867 2012 Nov 11 12.10UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074 INTERNET: GUY@TAHQ.DEMON.CO.UK Backup: gmh@wdcc1.bnsc.rl.ac.uk WORLD WIDE WEB http://www.theastronomer.org ------------------------------------------------------------------- NOVA AQUILAE 2012 = PNV J18523496-0018423 Further to the note in TA E-Circular 2862 and 2863, R. J. Rudy et. al., Aerospace Corporation and others report on CBET 3287 of 0.47- to 2.5-micron spectroscopy of the possible nova in Aql using the 3-m Shane reflector of Lick Observatory and the Aerospace Corporation's VNIRIS spectrograph on the nights of 2012 Oct. 27 and 28 UT. The object is a nova of the Fe II type but is extremely heavily reddened. In addition to Fe II and H I, the object displays a very strong Ca II infrared triplet along with strong lines of C I, N I, and O I. He I lines are weak but present. The O I lines suggest a reddening of E(B-V) around 2.5, implying more than seven magnitudes of visual extinction. This large value is consistent with the steeply rising optical continuum. The hydrogen lines have FWMH between 900 and 1000 km/s. P-Cyg components are seen on some of the H I, C I, N I, and O I lines and extend out to 900 km/s from line center. Carbon monoxide emission is present, indicating that molecule formation is ongoing, with dust formation likely to follow. Magnitudes derived from the spectroscopy for Oct. 28.05 are: V(Bessell) = 14.1, R(Bessell) = 12.0, J = 7.5, H = 6.5, K-short = 5.9. Gustav Holmberg (Lund, Sweden) reports magnitude V = 14.11 from a remote observation using the Sierra Stars 0.37-m Cassegrain telescope located at the Winer Observatory near Sonoita, AZ, U.S.A., on Oct. 29.065 UT. Denis Buczynski also reports to TA the following recent photometry: 20121109 18:11UT r band 11.727 20121109 18:05UT v band 14.108 20121109 18:08UT i band 10.028 SUPERNOVA 2012eu (SIDING SPRING SURVEY) 2012eu Aug 27.77 03 13 04.16 -08 23 31.7 17.3 0.6"W 23.1"N L. Morelli: spectrum Sept 15 type-Ia. SN2012eu is similar to several type-Ia at one month after maximum light. The expansion velocity measured from the Si II 635.5-nm minimum is about 9000 km/s. SUPERNOVA 2012ew (STUART PARKER) 2012ew Sep 12.53 02 45 28.36 -62 07 21.0 18.5R 10 "W 9 "N N. Morrell: spectrum Sept 14 evolved type-II supernova. There is good comparison with several type II-P but the age is unclear. Guy M Hurst