Supernova 1997eh in Anonymous Galaxy
J. Maza, Department of Astronomy, University of Chile, reports the discovery of a supernova (B about 18.5) by Roberto Antezana on a plate taken by L. Gonzalez using the Maksutov telescope at Cerro El Roble on Nov. 25.246 UT. SN 1997eh is located at R.A. = 5h49m04s.59, Decl. = -24o29'01".6 (equinox 2000.0), which is 6".4 west and 0".8 north of the nucleus of its host galaxy. Confirming images of the supernova were obtained by E. Costa (University of Chile) via a CCD frame taken with the Cerro Tololo (CTIO) 1.5-m telescope and by Gonzalez at Cerro El Roble, both on Nov. 27.25. R. Covarrubias and N. Suntzeff, CTIO, report that spectrophotometry (range 350--700 nm, resolution 0.3 nm), obtained by R. C. Smith on Dec. 23.3 UT with the CTIO 1.5-m telescope, shows SN 1997eh to be a type-Ia supernova, about 6 weeks after maximum. A very noisy spectrum of the galaxy suggests a possible redhift of z about 0.04.
International Astronomical Union Circular
- Pub Date:
- December 1997