Following the posting on the Central Bureau's unconfirmed-objects webpage about a possible nova in Ophiucus, today we performed some follow-up of this object remotely through a 0.25-m, f/3.4 reflector + CCD, near Mayhill (NM).
We can confirm the presence of a relatively bright counterpart at coordinates:
R.A. = 17h39m50s.95, Decl. = -23o 50'00".9 (equinox 2000.0; UCAC-2 catalogue reference stars).
Our multicolor photometry provides the following values: 2008, May. 26.31, B= +11.42, V= +10.45, R= +9.81 (estimated accuracy +/- 0.05 magnitudes in each color).
Comparison with a UK Schmidt Telescope red plate, obtained on 1991, August 11 show nothing in this position (limiting magnitude near 20).
by Ernesto Guido & Giovanni Sostero