SIMBAD references

Markku Nissinen, Esa Heikkinen, and Veli-Pekka Hentunen, Varkaus, Finland, report their discovery of an apparent supernova (mag 16.0) on CCD images (limiting mag 19.7) obtained on Mar. 27.871 UT was a Celestron C-14 XLT reflector (+ Optec NextGen 0.5x focal reducer + SBIG ST-8 XME camera + Bessel R filter). The new object is located at R.A. = 3:56:06.92, Decl. = +72:55:40.9 (equinox 2000.0), which is 11" east and 22" north of the center of UGC 2890. Nothing is visible at this position on their unfiltered 90-s CCD image taken on Feb. 15.72 (no limiting magnitude given) or on a Palomar Sky Survey F plate (limiting red mag 20.8). Following posting on the Central Bureau's unconfirmed-objects webpage, C. Jacques and E. Pimentel (Belo Horizonte, Brazil) write that a 120-s unfiltered CCD image (limiting mag 18.0) taken remotely on Mar. 29.11 with a 25-cm f/3 reflector at Gras Observatory near Mayhill, NM, U.S.A., show 2009bw at mag 15.0 with position end figures 06".95, 40".5, adding that nothing is visible at this position on a Digitized Sky Survey image from 1994 Oct. 10 (limiting red mag 19.0).