SIMBAD references

Akira Arai, Koyama Astronomical Observatory, Kyoto Sangyo University, writes that optical low-dispersion spectroscopic observations (range 400-750 nm; R about 600 at H-alpha) of PNV J21095047+1348396 were made on May 25.67 UT using the 1.3-m Araki telescope (+ LOSA/F2). The spectrum shows a blue continuum with H_beta and H_gamma absorptions and no significant blue-shifts. No obvious line is visible at H_alpha. These suggest that an emission component of H_alpha could be filling in the absorption line and that the object is a dwarf nova in outburst. Their spectrum has been posted at website URL http://www.cc.kyoto-su.ac.jp/~kao/blog/index.php/view/94.