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Discovery of a Probable Supernova in LEDA 906122

ATel #10193; K. Hornoch, P. Fatka, P. Kusnirak, P. Pravec (Astronomical Institute, Ondrejov, Czech Republic)
on 22 Mar 2017; 14:43 UT
Credential Certification: Steven Williams (scw@astro.ljmu.ac.uk)

Subjects: Optical, Supernovae, Transient

We report the discovery of a probable supernova in the galaxy LEDA 906122 on a series of 180-s R-band CCD images taken between 2017 Mar. 22.155-22.392 UT with the Danish 1.54-m telescope at La Silla. There is no object visible on a deep stack of g'r'i' PanSTARRS1 images (Chambers, K.C., et al. 2016) available via the MAST Portal.

The new object designated PSN J12140783-1549026 is located at R.A. = 12h14m07s.83, Decl. = -15o49'02".6 (equinox 2000.0), which is 3.2" east and 2.2" south of the center of the host galaxy (see link to discovery image below which is co-added from eight single 180-s R-band exposures). Using several Landolt standard stars in a photometric conditions we measure R = 19.22 ± 0.08 for the object on the co-added image centered on Mar. 22.211 UT.

This work is based on data collected with the Danish 1.54-m telescope at the ESO La Silla Observatory.

Discovery image