COMMISSIONS 27 AND 42 OF THE IAU
          INFORMATION BULLETIN ON VARIABLE STARS
                      Number 3918

                                       Konkoly Observatory
                                       Budapest
                                       30 July 1993

                                       HU ISSN 0374 - 0676


       CCD OBSERVATIONS OF A NEW T TAURI STAR IN CEPHEUS


The CCD observations of the new suspected T Tauri star in Cepheus, having a strong variability
(Semkov 1993) were made on 24 September 1992 at the Rozhen Astronomical Observatory,
Bulgarian Academy of Sciences.

The star is located in the dark clouds near the emission nebula NGC 7129 and it was also
recognized as a very strong Halpha emission star - No 7 from the list of 
Semkov and Tsvetkov (1986).

The observations were taken with the Focal Reducer and CCD F8603/B(576 x 385) camera
of the Max-Planck-Institute for Aeronomy (Jockers 1992) attached to the Rozhen 2m RCC
telescope. The CCD image of the star through a red broad band filter Gunn R is shown in
Fig. 1a and through an interference narrow band filter IF 657 in Fig. 1b. In Figure 1 North is
on the top, East is on the left and the scale is 1.3 arcmin on a side.

The observations showed that there is a small cometary nebula around the star, which is not
visible on the Palomar Observatory Sky Survey prints. West of the, star a more dense object is
situated, which maybe a jet from the star. On the North there is a background enhancement
probably connected with the nebulosity around the star.

                           [FIGURE 1]

 Figure 1.   CCD frame of the new T Tauri star through Gunn R and IF 657 filters.

The spectra of the star were taken with a grating prism having a dispersion 0.469 nm/pixel
(Fig. 2). The spectral observations exhibit strong emission line spectrum with the lines of HI,
OIII, FeII, MgI and other metals. The Halpha hydrogen line is very intense 
and it goes beyond the frame in Fig. 2.

                           [FIGURE 2]

    Figure 2.   CCD spectrum of the new T Tauri star in Cepheus.

This kind of spectrum is typical of the very active T Tauri stars connected with nebulae
according to Herbig's classification (1962).


                E. H. SEMKOV
                Department of Astronomy and
                National Astronomical Observatory,
                Bulgarian Academy of Sciences,
                Tsarigradsko Shose # 72
                BG-1784 SOFIA, Bulgaria
                E-mail: astro @ bgearn.bitnet


REFERENCES

Herbig, G. H., 1962, Adv. in Astron. Astrophys., 1, 47 [BIBCODE 1962AdA&A...1...47H ]
Jockers, K., 1992, Astronomische Gesellschaft, Abstract Ser. No. 7, 184 [BIBCODE 1992AGAb....7..184J ]
Semkov, E. H., Tsvetkov, M. K., 1986, Star Clusters and Associations, Ed. G. Szecsenyi-Nagy,
 Publ. of the Ast. Dep. Eotvos Univ., Budapest, 8, 141 [BIBCODE 1986scag.conf..141S ]
Semkov, E. H., 1993, IBVS, No. 3870