[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

[vsnet-id 638] Dearborn red stars sample



Star-catalogue folks,
     As a test out of curiosity, I have identified the first 50 stars in the
Dearborn red stars catalogue.  I first matched the source positions against
Tycho-2 using a 4 arcmin search radius (the Dearborn positions are well known
to be rather poor).  In nearly all cases, a likely candidate was found,
showing relatively red Tycho color and matching closely in brightness.
At least in this sample, the Dearborn magnitudes are not far from standard V
and not significantly brighter than V, as expected.  I did a similar match
with the IRAS point-source and faint-source catalogues in VizieR, and finally
a BD and GCVS match-up (a large fraction of the later-type stars will be
variable).  A few errors were dealt with individually, including stars more
than 4' from nominal, and one Dec sign error.  I looked up each star in SIMBAD
to seek additional IDs.  The resulting list is shown below in a fairly obvious
format.  All the coordinates are from Tycho-2 (code T in column 's') except
two fainter stars from GSC-ACT (code G).  Many of the BD names and all the IRAS
faint-source names are new to SIMBAD, and numerous new IDs are indicated
(e.g. DO 1 = PPM 700002 = IRAS 00025+0027).
     Nearly all the stars were within 2'.5 of the catalogue position.  The
Tycho-2 and TASS V,I photometry shows that most of the stars are indeed red,
but some blunders appear among the fainter stars, some of which are less red
than K0 giants.  Overall, the sample suggests the main value in going through
the list will be to clean up the existing database at least as much as having
the spectral types for the stars (e.g. IRAS objects).  With 44,000 stars,
fixing this catalogue will be a big task due to the rough coordinates.

\Brian

-------------------

1947AnDea...5....1L
  LEE O.J., BALDWIN R.J., HAMLIN D.W., BARTLETT T.J., GORE G.D., BALDWIN T.J.
  Ann. Dearborn Obs., 5, 1 (1947)
  Dearborn Observatory Catalogue of faint red stars (parts 1A, 1B and 1C).
  <CDS Catalogue: II/68>
  Part IA: <DO NNNN> (Nos 1-8151). Part IB: <DO NNNNN> (Nos 8141-22680). Part
    IC: <DO NNNNN> (Nos 22681-44076).



 DO        RA   (2000)   Dec    s    GSC        IRAS      mv   spec  remarks
    1*   0 05 06.02 +00 43 48.2 T 0001-0220  00025+0027  10.5  M6    PPM 700002
    2    0 05 07.90 +03 04 21.6 T 0004-0298              10.9  K5
    3    0 05 59.33 +12 52 29.6 T 0600-1446  00034+1235   8.7  S?    BD+12 5064
    4    0 06 02.44 +10 03 40.6 T 0597-1489              10.8  K5
    5*   0 06 12.43 +00 31 01.8 T 0001-0584              11.2  K5   
    6    0 06 18.71 +08 41 39.6 T 0594-1199              11.7  M0
    7    0 06 25.37 +05 28 16.1 T 0007-1064              11.1  K5
    8    0 06 20.30 +02 47 08.0 T 0004-0052              10.3  M3    BD+01 4828
    9*   0 05 24.99 +01 10 04.1 G 0001-0372              12.2  R     CGCS 6004
   10    0 06 49.84 +13 37 26.3 T 0600-0144              10.7  K5    BD+12 5069
   11*   0 07 02.43 +05 17 16.8 T 0007-0805  00044+0500   8.4  M4    HD 223
   12    0 07 14.79 +13 53 55.8 T 0600-1281              10.5  K5
   13*   0 07 16.46 +06 54 33.5 T 0007-0516  00047+0637  10.9  M2    
   14*   0 07 19.16 +04 33 30.7 T 0004-0846  00047+0416   8.5v M3    HD 252
   15    0 07 34.19 +13 06 02.9 T 0600-1157              10.7  K5    BD+12 1
   16    0 07 39.25 +01 20 47.9 T 0001-0521  00050+0104   9.3  M5    HD 293
   17    0 07 43.45 +11 15 35.1 T 0597-1067              11.2  K5
   18    0 07 44.59 +05 53 54.5 T 0007-0854              11.3  M0
   19*   0 07 40.36 +02 33 51.8 T 0004-0141              11.5  M0    StKM 1-6
   20    0 07 38.58 +00 10 44.7 T 0001-0818               9.6  K5    HD 295
   21    0 08 15.48 +05 15 11.7 T 0007-0754              11.   K5    BD+04 3
   22    0 08 19.42 +01 20 06.3 T 0001-0510              11.4  K5
   23    0 08 18.47 -01 05 30.5 T 4663-0538              11.7  M0
   24    0 08 21.47 +03 54 27.9 T 0004-0555  F00057+0337 10.1  M0    BD+03 3
   25    0 08 44.29 +07 44 27.5 T 0594-0666              11.2  M2
   26    0 08 49.32 +01 15 15.3 T 0001-0269  F00062+0058  9.5  K5    HD 421
   27    0 08 58.66 +07 20 16.3 T 0007-0081              10.7  M1
   28    0 09 26.70 +07 57 16.3 T 0594-1106              10.3  M2    BD+07 8
   29    0 09 58.99 +08 39 42.9 T 0594-1128              10.8  K5    BD+07 11
   30    0 09 55.02 -02 33 40.6 T 4666-0595  00073-0250   6.9  M1    HD 545
   31    0 09 57.11 +04 09 58.0 T 0004-0566               8.5  K5    HD 544
   32    0 10 12.94 +07 28 15.3 T 0008-0129  F00076+0711  9.2  M0    BD+06 2
   33    0 10 20.10 +08 14 56.4 T 0595-0753              11.1  K5   
   34    0 10 43.80 +11 58 28.9 T 0598-0018              10.7  M0    BD+11 11
   35    0 10 41.90 +03 10 32.6 T 0005-0045  00081+0253  10.5  M3    BD+02 10
   36    0 10 54.27 +08 39 01.4 T 0595-0631  00083+0822   9.3  M4    BD+07 12
   37    0 11 20.27 +07 40 39.7 G 0595-0630              11.6  K5
   38    0 11 11.81 +02 47 45.0 T 0005-0150  F00086+0231  9.8  K5    BD+01 14
   39    0 11 26.86 -02 37 26.2 T 4667-0005               9.2  K5    HD 701
   40    0 11 32.10 +00 06 41.3 T 0002-2224              10.8  K5    AG-00 14
   41    0 11 36.58 -02 49 13.1 T 4667-0006              10.4  M0    BD-03 15
   42    0 11 55.82 +06 34 41.7 T 0008-0739               9.4  M0    BD+05 10
   43    0 12 14.39 +02 19 50.3 T 0002-0449  00096+0203  10.0  M6    HD 785
   44    0 12 25.03 +07 49 55.8 T 0595-0863  00098+0733   8.8  M2    BD+07 16
   45    0 12 45.81 +12 43 10.6 T 0601-0806  F00102+1226 10.2  M0    BD+11 15
   46    0 12 58.79 +12 33 41.7 T 0601-1184              10.1  K5    BD+11 16
   47    0 12 49.90 +05 37 39.3 T 0008-0789               9.6  K5    BD+04 18
   48*   0 12 55.14 -03 22 53.6 T 4667-0671  00103-0339   7.3  M4    HD 853
   49    0 13 06.32 +07 15 46.0 T 0008-0697              11.1  M0
   50    0 13 11.09 +13 50 03.7 T 0601-0584  F00106+1333  9.4  K5    BD+13 17


Notes:
 1   TASS V=10.8, V-I=4.1.
 5   TASS V=11.2, V-I=1.8.
 9   [BEM91] 1; ID uncertain, and assumes RA +1m and Dec sign error;
     TASS V=13.5, V-I=1.3.
11   NSV 15023.
13   _not_ HD 231 (erroneous IRAS assignment in SIMBAD).
14   NSV 41.
19   Stephenson type K5.
48   NSV 15049.

VSNET Home Page

Return to Daisaku Nogami


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