Има две Нови звезди!!!
1.
TCP J05515391+6504346: likely dwarf nova outburst (13.2 mag) in Camelopardalis
TCP J05515391+6504346 (UG:)
https://www.aavso.org/vsx/index.php?vie ... oid=686919
Discovery details:
R.A. 05h51m53.91s, Decl. +65°04'34.6" (J2000.0)
2019 Apr. 1.4504 UT, 13.2 mag (CCD, unfiltered)
Discoverer: Hideo Nishimura (Shizuoka-ken, Japan)
2019 04 01.450 UT
Discovered by H. Nishimura, Shizuoka-ken, Japan, on three frames with 15 second exposure using Canon EOS 6D digital camera + 200-mm f/3.2 lens under the limiting mag = 14.7, who writes there is no previous image since this is not his survey area and also because of a faint star, he has confirmed the appearance of this star on April 1.593 UT.
2019 04 01.65 UT
A (blue) progenitor candidate is 2.3" away at Gaia DR2 position end figures 53.825s, 36.80" (equinox J2000.0, epoch 2015.5; Gmag. 20.62). Other designations are USNO-B1.0 1550-0122180 (Bmag. 20.9, Rmag. 20.2), GSC2.3 NAQ5009716 (Fmag. 20.08, Bjmag. 21.52), PSO J055153.857+650436.965 (gmag. 20.59, rmag. 20.63), and CSS_J055153.8+650436. No outbursts were recorded by the ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) between 2012 Jan. 11 and 2019 Mar. 30; complete light curve at
https://asas-sn.osu.edu/light_curves/ac ... 1a54a2e73d.
The transient is probably a dwarf nova outburst with an amplitude of about 7 magnitudes (WZ Sge type?).
*** Spectroscopy as well as multiband and time-resolved photometry are strongly recommended. ***
--- Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)
http://www.cbat.eps.harvard.edu/unconf/ ... 04346.html
И 2.
TCP J18325790-1642211: new transient (12.5 mag) in Sagittarius
Discovery details:
R.A. 18h32m57.90s, Decl. -16°42'21.1" (J2000.0)
2019 Apr. 2.7544 UT, 12.5 mag (CCD, unfiltered)
Discoverer: Tadashi Kojima (Gunma-ken, Japan)
2019 04 02.754 UT
Discovered by T. Kojima, Gunma-ken, Japan, on three frames with five second exposure using Canon EOS 6D digital camera + 200-mm f/3.2 lens under the limiting mag = 14.2, who writes nothing is visible at this location on two frames taken on 2019 March 16 and April 1 UT with limit mag.= 13s.
2019 04 02.85 UT
There is a red star 1.6" south of the transient's reported position with Gaia DR2 position end figures 57.892s, 22.67" (equinox J2000.0, epoch 2015.5; Gmag. 15.17). Other designations are USNO-A2.0 0675-26976582 (Bmag. 17.6, Rmag. 15.6), USNO-B1.0 0732-0651565, GSC2.3 SA79039038 (Vmag. 15.75, Fmag. 15.07, Bjmag. 17.80), UCAC4 367-131021, CMC15 J183257.8-164222, 2MASS J18325789-1642225, UGPS J183257.89-164222.6. According to recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and Kochanek et al. 2017PASP..129j4502K) observations the current brightening began around 2019 March 29; complete light curve at
https://asas-sn.osu.edu/light_curves/22 ... 8b0feee86c
--- Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)
http://www.cbat.eps.harvard.edu/unconf/ ... 42211.html
Type unknown. Symbiotic variable star? Microlensing event??
*** Spectroscopy, precise astrometry, and multiband photometry are urgently required. ***