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PNV AT2023bne galattica

2023/02/10.791 - Flux: 18.2 STMag

Discovery Image Discovery date: 2023-02-10 18:59:15		Reference Image Last non-detection date: 2023-02-09 19:16:45		PanSTARRS-1 01h34m52s97 +30°47'14"50

TNS - Discovery certificate for object 2023bne

Date Received (UTC): 2023-02-10 21:57:42

Sender: Mr. Raffaele Belligoli

Reporting Group: ISSP Discovery Data Source: None

IAU Designation: AT 2023bne

Discoverer internal name: OMB-PNV19

Coordinates (J2000): RA = 01:34:52.970 (23.720708) DEC = +30:47:14.50 (30.787361)

Discovery date: 2023-02-10 18:59:15.000 (JD=2459986.2911458)

Potential host galaxy: M33

Remarks: F. Castellani, Verona, Italy reports the discovery by Raffaele Belligoli, Flavio Castellani and Vittorio Andreoli, in the course of the ISSP Italian Supernovae Search Project, of an apparent nova on a co-added 4500sec unfiltered images taken with a Moravian G4-9000 KAF CCD unfiltered, from Monte Baldo Observatory (Ferrara di Monte Baldo, Verona, Italy), with the 0.4m f.8 Ritchey-Chrétien telescope, obtained on 2023 February 10.7911 UT. The new object is located at RA 01 34 52.97 DEC +30 47 14.5 (equinox 2000.0) Apparent magnitude about 17.5 in host Galaxy M33. No stellar source is visible at the position of the transient in our past images including reference image dated 2023 February 9.8032

CBAT - PNV J01345297+3047145

PNV J01345297+3047145 2023 02 10.7911* 01 34 52.97 +30 47 14.5 18.2 U 801E 458N M33 9 0

Flavio Castellani, Claudio Balcon and Vittorio Andreoli reports: We obtained BVRI photometry of PNV J01345297+3047145 (AT 2023bne) with 0.4m telescope + Moravian G4 CCD full frame located in Novezzina (Italy), date 2023/02/11.7868 B=17.11 ; V=17.04 ; R=17.01 ; I=16.84 (Vphot AAVSO photometry tool). Color index B-V=0.07 is similar to cataclysmic variable (CV) Z Cam B-V=0.05 (Bruch 1984) at maximum. We also obtained two low resolution spectra (2x2400s , R=100) by 0.2m telescope on 2023-02-11.772 UT, the spectrum shows a blue continuum with no features above noise level. These characteristics are compatible with those of a CV in outburst.

ATEL#15899

Las Cumbres Observatory follow-up photometry of the M33 nova PNV J01345297+3047145 (AT 2023bne, OMB-PNV19)...