Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

TCP J05390410+4748030

TCP J05390410+4748030   2019 03 14.4227*  05 39 04.10 +47 48 03.0  11.3 U             Aur       9 0

2019 03 14.4227

Yuji Nakamura, Kameyama, Mie, Japan, reports his discovery of this TCP (mag 11.3) in Aur on a CCD frame taken on 2019 Mar 14.4227 UT (limiting mag 13.0) using a 135mm F4.0 lens. The object was not shown on a frame taken on 2019 Mar 09.4284 UT (limiting mag 13.0). There is a 19.2 mag star USNO-A2.0 1350-06029095 on this position.

2019 03 14.65

Gaia DR2 position end figures for the abovementioned star USNO-A2.0 1350-06029095 are 04.103s, 00.71" (equinox J2000.0, epoch 2015.5; Gmag. 19.67, parallax 3.0826 ± 0.5239 mas, distance ~0.3 kpc). Other designations are USNO-B1.0 1378-0184085, GSC2.3 NAO9008900, PSO J053904.098+474800.708, GALEX J053904.0+474800, AllWISE J053904.08+474759.9, WDJ053904.11+474800.65WDJ053904.11+474800.65. The transient is probably a dwarf nova outburst with an amplitude of about 8 magnitudes (WZ Sge type?). Spectroscopy as well as multiband and time-resolved photometry are strongly recommended. --- Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)

2019 3 15.1726

Photometry results were V=11.80 and Ic=11.80 with 0.61-m f/6.5 CDK astrograph + FLI PL09000 CCD at iTelescope.NET (Sierra Remote Observatory - Auberry, California. USA). Position end figures were 04.10 and 1.0. http://meineko.sakura.ne.jp/ccd/TCP_J05390410+4748030.jpg Seiichiro Kiyota (Kamagaya, Japan)

2019 03 15.759

P. Berardi (ARAS) and Giuseppe Di Carlo, L'Aquila, Italy, obtained a low-resolution spectrum of this transient on 2019 Mar 15, 18:13 UT. Observation was performed at Bellavista Observatory (MPC code C93), using 0.23 m SCT telescope and Lhires III spectrograph configured for low resolving power (4200-7000A, 10A res.). The spectrum shows a blue continuum, emission of H-alpha line, a narrow component in a broad absorption for H-beta line, emission of CIII/NIII 4640 blend and several He I/II emission lines. All that suggests that the transient is a dwarf nova, WZ Sge type. Spectral profile is available here: http://quasar.teoth.it/html/spectra/tcpj05390410+4748030_BD.png

2019 03 20.80542

A.Valvasori and P.Punzo (AAB) in collaboration with students of Liceo Galvani (D.Morgante, C.Vanelli, M.Barbieri, M.Amerotti, P.Dantuono, A.Fiorini, L.Martoni, F.Blasi) Bologna, Italy, obtained one observations of this transient on 2019 Mar 20, 19:18 UT with filter V=12.779. Observation was performed at Remote Felsina Observatory RFO (MPC code L19), using 0.305 m f/5.6 SCT telescope and CCD. A image is available here: https://flic.kr/p/2fgjeue