Field HIP:
HIPPARCOS number (See the description of Field 1 of the ARIHIP.)
Field Tabular Note:
Columns H to V:
Indicators for binarity
Column H:
HIPPARCOS indicators for a suspected visual binary:
s = Flag S in HIP Field H61
d = Flag D in HIP Field H52, based on photometry. This could be an indication of duplicity.
t = HIP Flags S and D (t = s+d).
Column U:
HIPPARCOS percentage of rejected data (HIP Field H29, F1):
percentage of rejected HIP data
(one digit: 0, 1, 2, ... percent; 9: 9 or more percent)
A high percentage of rejected data may be caused by a duplicity of the object,
but other reasons cannot be excluded.
Column F:
HIPPARCOS goodness-of-fit parameter (HIP Field H30, F2):
- F2 < 0
0 0 <= F2 < 1
1 1 <= F2 < 2
2 2 <= F2 < 3
3 3 <= F2 < 4
4 4 <= F2 < 5
etc.
8 8 <= F2 < 9
9 9 <= F2
A large value of F2 (e.g. larger than 3) may be caused by a duplicity of
the object, but other reasons cannot be excluded.
Column K:
Indications on binarity provided by the catalogue of speckle observations
(Hartkopf et al. 1999).
b = binary resolved by speckle (or other interferometric)
observations (such objects are generally excluded from the GC+HIP)
u = possibly resolved
n = object observed, but not resolved (i.e. no hint to binarity)
Column C:
Indicator for a star which has one (or more) visual component(s) with a separation rho of at least 60".
Source of information:
c = CCDM (Dommanget and Nys 1994)
t = TYCHO2 (Hoeg et al. 2000)
w = WDS (Worley and Douglass 1997, and updated versions under the given URL)
r = other sources
Visual binaries with rho < 60" are generally excluded from the GC+HIP.
Column G:
Indications on binarity provided by the General Catalogue of Stellar Radial
Velocities (GCRV, Wilson 1953):
v = radial velocity is variable
u = radial velocity may be variable
2 = variable radial velocities for two stellar components
b = (other) indications of binarity
d = (other) indications of binarity are doubtful
Column B:
Indications on binarity provided by the Bright Star Catalogue (BSC, Hoffleit and Jaschek 1982).
The symbols v, u, 2, b, d have the same meaning as explained for Column G.
Column S:
Indications on binarity provided by the radial-velocity bibliography given in
the data block 'oRV' of SIMBAD (CDS Strasbourg).
The symbols v, u, 2, b, d have the same meaning as explained for Column G.
Column T:
Indications on binarity provided by the spectral-type bibliography given in the
data block 'MK' of SIMBAD (CDS Strasbourg).
b = binary
u = possibly a binary
Column A:
Indications on binarity provided by the Third Bibliographic Catalogue of
Stellar Radial Velocities (Barbier-Brossat et al. 1994).
The symbols v, u, 2, b, d have the same meaning as explained for Column G.
Column M:
Indications on binarity provided by the Bibliographic Catalogue of
Stellar Radial Velocities 1991-1998 (Malaroda et al. 2001).
The symbols v, u, 2, b, d have the same meaning as explained for Column G.
f = probably erroneous indication on binarity
Column L:
Indications on binarity from additional literature (e.g. from papers more
recent than those used for Column M).
The symbols v, u, 2, b, d have the same meaning as explained for Column G.
c = radial velocity is probably constant
Column V:
Indications on binarity from photometric variability.
a = eclipsing binary, Algol type
b = eclipsing binary, beta Lyrae type
e = eclipsing binary, type uncertain
w = eclipsing binary, W Ursae Majoris type
Column P:
Indicator for a variability of the radial velocity V_rad due to
stellar pulsation (which may be confused with a variability of
V_rad due to spectroscopic binarity).
c = Cepheid
s = delta Scuti star
b = beta Cephei star
Column I:
i = an individual note on this star is given in
Part I (1-560) or III (3001-3024) of the FK6
Field Indiv. Note:
Number of the individual note
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Updated: 01 April 2002