COMMISSIONS 27 AND 42 OF THE IAU
               INFORMATION BULLETIN ON VARIABLE STARS
                            Number 4015

                                                 Konkoly Observatory
                                                 Budapest
                                                 21 April 1994

                                                 HU ISSN 0374 - 0676

                         EP And = NSV 598


  During my work on PICA project (Precise Identification and Coordinate Adjustment
of about 7000 variables) I have found that EP And is identical with NSV 598.

  EP And = BV 75 was discovered by Strohmeier et al. (1955). In his paper the
type of variability is commented as "slow changes". Eclipsing nature was first found
by Filatov (1960), but he gave incorrect elements. This star has received its final
designation in 1967 (Kukarkin et al., 1967). In 1975 (Diethelm, Locher, 1975) first
visual observations by BBSAG appeared giving in short time the first correct elements
for this W-UMa type star (Locher, 1976). From 1975 it was many times observed
either visually or by photoelectric means and also on plates of photographic archives.

  NSV 598 = Brun 16 was discovered by Brun (1963). His comment to the star
is short, stating only "No 662 in Bergedorfer Spektral Durchmusterung. Mag: 11.74
Sp. F8. Maxima are frequent". Fortunately finder chart was published in the paper.
I have found no other paper concerning this star. No final designation was accepted
for this star and it was included into New Catalogue of Suspected Variable Stars
(Kholopov et al.,1982).

                                 [FIGURE 1]

  Figure 1: Finding chart for EP And = NSV 598. The chart covers about 60' x 45'
  with north up. Variable is marked with two short lines.


Name           Position (B1950)        Position (J2000)      Type  Max   Min   Ph.
               h m s       d   '       h m s       d ' "           mag   mag   s.
NSV 598        01 39 31    +44 30.8    01 42 33    +44 45.9        11.7  12.5  p
EP And         01 39 28    +44 30.6    01 42 30    +44 45.7    EW  11.9  12.5  p
EP And (Plaut) 01 39 27.65 +44 30 36.8 01 42 29.54 +44 454 2.9
GSC 2827.0017  01 39 27.48 +44 30 36.8 01 42 29.37 +44 454 2.9     11.74       1

Table 1: Comparative table of original data for NSV 598, GSC 2827.0017 and
EP And. Data concerning NSV 598 are from NSV, data for EP And are from GCVS,
for EP And (Plaut) are by Plaut (1977) and data for GSC 2827.0017 are from GSC.
Photometric system code 1 for GSC represents the Kodak IIa-D plate with W12 filter.
Coordinates printed in italics were computed from the above stated data sources.

  While working on field variable stars around EP And I have noticed that NSV 598
lies quite close to EP And. As I wasn't successful in obtaining the original chart of
Strohmeier et al. (1955) for EP And, I had to use the chart of Berthold (1982) to be
sure. Berthold's chart refers to the same star as Brun's chart. Additional check has
confirmed this. As EP And is identical with GSC 2827.0017 the J2000.0 coordinates
were easily found (see Table 1). These coordinates are consistent with those given
by Plaut (1977). The remaining difference may have origin in proper motion, as
the epoch differs by 90 years. Finding chart (see Figure 1) was adapted from Atlas
Stellarum (Vehrenberg, 1970).

  Following cross-identifications are valid : EP And = BV 75 = Brun 16 = NSV 598
= Hels ph 1h40m + 44d No93 = Hels ph 1h35m + 45d No385 = GSC 2827.0017


                                   Jan MANEK
                               Stefanik Observatory
                                    Petrin 205
                                  118 46 Praha 1
                                  Czech Republic
                          e-mail: observ@earn.cvut.cz


References :
Berthold, T.: 1982, Hartha Mitteilungen No 17,1
Brun, A.: 1963, Journal des Observateurs 46, No 4, 126 [BIBCODE 1963JO.....46..126B ]
Diethelm, R., Locher, K.: 1975, BBSAG Bulletin 21
Filatov, G.S.: 1960, Astronomicheskij Tsirkulyar No 215, 20 [BIBCODE 1960ATsir.215...20F ]
Guide Star Catalogue v1.1: 1992, The Space Telescope Science Institute, Baltimore, 
  Maryland, USA. On CD-ROM.
Kholopov, P.N., et al.: 1982, New Catalogue of Suspected Variable Stars, Nauka, Moscow [BIBCODE 1982ncss.book.....K ]
Kholopov, P.N., et al.: 1985, General Catalogue of Variable Stars, 4th ed., Nauka, Moscow
Kukarkin, B.V., et al.: 1967, 2nd supplement to 2nd edition of GCVS, Nauka, Moscow 
Locher, K.: 1976, BBSAG Bulletin 25
Plaut, L.: 1977, Astronomy & Astrophysics Suppl. 28, 169 [BIBCODE 1977A&AS...28..169P ]
Strohmeier, W., Geyer, E., Kippenhahn, R.: 1955, Kleine Veroffentlichungen der Remeis-
  Sternwarte No 11, Bamberg             
Vehrenberg, H.: 1970, Atlas Stellarum 1950.0, Treugesell Verlag KG, Dusseldorf [BIBCODE 1970asps.book.....V ]