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Astron. Astrophys. 356, L53-L56 (2000)


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Letter to the Editor

Photometry of Nova V 1493 Aql *

P. Bonifacio 1, P.L. Selvelli 2 and E. Caffau 3

1 Osservatorio Astronomico di Trieste,Via G.B.Tiepolo 11, 34131 Trieste, Italia
2 C.N.R.-G.N.A.- Osservatorio Astronomico di Trieste,Via G.B.Tiepolo 11, 34131 Trieste, Italia
3 Istituto Magistrale S.P.P. e L. annesso al Convitto Nazionale Paolo Diacono, S. Pietro al Nat. Udine, Italia

Received 25 February 2000 / Accepted 13 March 2000

Abstract

We report on photometric observations of V 1493 Aql during the early decline and highlight some uncommon aspects of the light curve. V 1493 Aql was hotter at maximum light than in the following phases, and was characterized by the presence of a long lasting secondary maximum, that, unlike in other novae, was quite red in color. The mean of three distance estimates yields d [FORMULA] Kpc. Such a large distance would place V 1493 Aql at the extreme outskirts of our Galaxy or even in an external Local Group galaxy.

Key words: stars: novae, cataclysmic variables – stars: individual:

* Based on data collected at the Osservatorio Astrofisico di Catania, stazione M. G. Fracastoro, Serra la Nave (Etna), Italia

Send offprint requests to: P. Bonifacio

Correspondence to: bonifaci@ts.astro.it

© European Southern Observatory (ESO) 2000

Online publication: April 10, 2000

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