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Date and Time of the Query: 2019-06-25 T18:54:03 PDT
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For refcode 1992IAUC.5498....1H:
Retrieve 1 NED object in this reference.
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1992IAUC.5498....1H Circular No. 5498 Central Bureau for Astronomical Telegrams VARIABLE OBJECT NEAR NGC 4192 M. Hamuy, Cerro Tololo Interamerican Observatory; and J. Maza, University of Chile, report the discovery by M. Wischnjewsky of a variable object located about 19" east and 22" north of the nucleus of the spiral galaxy NGC 4192 (R.A. = 12h11m15s, Decl. = +15d10'.8, equinox 1950.0). This object was found at mpg about 19 on a 20-min unfiltered IIa-O plate taken by R. Antezana with the Curtis Schmidt on Apr. 9.155 UT. The object is not present (mpg [ 20) on a previous unfiltered IIa-O plate taken with the same telescope by L. Wells on Apr. 3. Confirmation was made by Y.-C. Kim from B and V CCD images obtained with the CTIO 0.9-m telescope, preliminary reductions yielding: Apr. 12.2 UT, V = 18.45; 13.16, V = 18.8, B-V = +1.2. A low-dispersion spectrum (range 300-720 nm), obtained on Apr. 13.2 by J. Baldwin with the CTIO 4-m telescope, shows narrow H-alpha and N II 658.5 nm in emission, as well as two unidentified emissions at 419.0 nm and 700.3 nm. An absorption at 393.3 nm, presumably due to Ca II, is also present. If the object is in NGC 4192, and assuming a distance modulus of 31.3 (Capaccioli et al. 1990, Ap.J. 350, 110) for the Virgo cluster, it would have an absolute visual magnitude of -12.85 on Apr. 12.2; this would correspond to a bright nova or a faint supernova. However, given the small radial velocity of NGC 4192 (-250 km/s) and the low resolution of the spectrum, it is not possible to distinguish between a member of NGC 4192 and a foreground galactic flare star. 1992 April 15 (5498) Brian G. Marsden
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