[vsnet-chat 1250] SX Cam sequence by Kukarkin

[bas@lowell.Lowell.Edu (Brian Skiff)]

     George Comello asked about comp stars for SX Cam, citing an old Sternberg
"Trudy" volume where a chart is published.  We have these in the Lowell
library, so I was able to get positions and IDs for stars in the field.  The
list is shown below along with the photographic-blue and -visual data for the
comp stars.  For two brighter stars there is Tycho photometry, which indicates
the old data is consistent with Johnson B and V to within 0.1 mag.  Comp star
'b' is inexplicably not marked on Kukarkin's chart.  The only sufficiently
blue star in the Tycho catalogue within 30' is the candidate shown, but this
must be considered a tentative identification.
     As Kato-san intimated, SX Cam is not the same as a nearby S star, CSS 90 =
IRAS 04211+6812, which lies about 15' east, and which is not yet known to vary.


source:  Kukarkin, B.V.  1949, Trudy Gosud. Astron. Inst. Sternberg 16, 128
         (1991TrSht..16..128K)

Name       RA  (2000)  Dec        GSC      mv     mb     Remarks
SX Cam   4 24 08.8  +68 13 18  4329-0007                 IRAS 04190+6806
a        4 23 13.3  +68 23 40  4328-1516  10.56
b?       4 26 00.5  +68 37 54  4329-2140  11.06  11.20   ID tentative
c        4 27 01.6  +68 12 00  4329-0215         11.78
d        4 24 29.4  +68 24 12  4329-0013  11.48  12.58   IRAS 04193+6817
e        4 25 10.3  +68 21 26  4329-1361  11.86          
f        4 25 59.7  +68 11 36  4329-1571         13.25   
g        4 24 46.3  +68 13 51  4329-1321         13.80   


Tycho photometry
a:   V = 10.55 +/- 0.05, B-V = 1.33 +/- 0.12
b?:  V = 11.08 +/- 0.07, B-V = 0.27 +/- 0.09
c:   V = 10.69 +/- 0.05, B-V = 1.05 +/- 0.09


\Brian

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp