24 com A

C.D.S. - SIMBAD4 rel 1.5.11 - 2017.10.18CEST09:29:06

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations


Basic data :
* 24 Com A -- Variable Star
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types:
* (HD,*,...), IR (IRAS,IRC,...), ** (ADS,CCDM,...), V* (CSV,NSV)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • quality : flag of quality
    • E >= 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) :
12 35 07.76217 +18 22 37.4018 (Optical) [ 26.76 17.04 90 ] A 2007A&A...474..653V
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • quality : flag of quality
    • E >= 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK5 coord. (ep=J2000 eq=2000) :
12 35 07.762 +18 22 37.40 [ 26.76 17.04 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • quality : flag of quality
    • E >= 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) :
12 32 37.30 +18 39 07.5 [ 153.45 100.62 0 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • quality : flag of quality
    • E >= 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) :
278.8616 +80.4775 [ 26.76 17.04 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, ~ =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr :
-0.48 22.24 [3.05 1.94 0] A 2007A&A...474..653V
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, ~ =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz :
V(km/s) 3.03 [0.1] / z(~) 0.000010 [0.000000] / cz 3.03 [0.10]
   A 2005A&A...430..165F
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, ~ =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas):
7.24 [2.74] A 2007A&A...474..653V
Spectral type is made of 3 parts:
  • the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities;
  • a quality letter: A=best quality->E=worst quality, ~ =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type:
K0II-III C 1997JApA...18..161Y
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, ~ =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (5) :
B 6.17 [0.02] C 1997JApA...18..161Y
V 5.02 [0.02] C 1997JApA...18..161Y
J 3.116 [0.194] D 2003yCat.2246....0C
H 2.538 [0.200] D 2003yCat.2246....0C
K 2.424 [0.226] D 2003yCat.2246....0C
SIMBAD with radius arcmin
Interactive AladinLite view
Back
sedIcon
VizieR photometry viewer    sed-help-icon
within radius arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).
Some important notes on this object about identifications and objects associations.
notes:

  • see also FAUST NGP-16


Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 2 : 1 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (35) :

HD 109511 GC 17147 N30 2908 SKY# 23522
* 24 Com A GCRV 7572 NSV 5748 SV* ZI 948
ADS 8600 A GEN# +1.00109511 PLX 2902 TYC 1446-2469-1
AG+18 1196 HIC 61418 PMC 90-93 337 UBV 11303
BD+19 2584 HIP 61418 PMSC 12301+1855A UBV M 18382
CCDM J12351+1823A HR 4792 PPM 129167 uvby98 100109511
CSI+19 2584 2 IRAS 12326+1839 RAFGL 4853S WDS J12351+1823A
CSV 101298 IRC +20244 ROT 3512 YZ 18 4706
FK5 473 2MASS J12350776+1822375 SAO 100160

Plots and Images

plot

radius arcmin


CDS portal

CDS Simplay
(requires flash)

Aladin applet

References (8 between 2012 and 2017)
Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object

from: to:

                                  Sort reference summaries by : (not exhaustive, explanation here)

                                 


Measurements (13 types) :


Fe_H : 4    GEN : 1    Hbet1 : 2    MK : 1    oRV : 4    PLX : 4    PM : 3    pos : 3    posa : 1    UBV : 3    uvby1 : 2    V* : 1   
velocities : 6   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed

fe_h (4)

 |Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 -----------------------------------------------------------
 |            |-0.04   |SUN      |     |1997JApA...18..161Y|
 

gen (1)

 | U-B  | V-B  | B1-B | B2-B | V1-B | G-B  |Wt : m.e | Vmag |Wt : m.e | Rem |     reference     |
 ------------------------------------------------------------------------------------------------
m| 2.329|-0.473| 1.399| 1.078| 0.299| 0.457|  3:0.004| 5.024|  1:0.001|     |1976A&AS...26..275R|
 

hbet1 (2)

 | Hbet       |nmes |rrrr|     reference     |
 ---------------------------------------------
m| 2.557      |    2|    |1998A&AS..129..431H|
 

mk (1)

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
 |  /   |K0 II-III                           |1997JApA...18..161Y|
 

orv (4)

 | RVel.  Q  (Nmes)| Rem.  |Or Dis|     reference     |
 ------------------------------------------------------
m|   +3.9 A  (  11)|       |##    |1953GCRV..C......0W|
 

plx (4)

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
m|   7       :   2          |2007A&A...474..653V|
 

pm (3)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |   -0    [    3    ]|  +22    [    2    ]|ICRS|2007A&A...474..653V|
 

pos (3)

 |     ra           dec     |me.al me.de|equi  epoch |     reference     |
 -------------------------------------------------------------------------
 |12 35  7.76 +18 22 37.41  |0.322 0.181|2000 1991.25|1997A&A...323L..49P|
 

posa (1)

 |    alpha        delta    | MajAxis , MinAxis    PA  |equi  epoch |     reference     |
 ----------------------------------------------------------------------------------------
 |12 35  7.762 +18 22 37.21 |    0.002,    0.002    0  |2000 1991.25|2007A&A...474..653V|
 

ubv (3)

 |      V      B-V     U-B  |Q/nbm|  remarks  |     reference     |
 ------------------------------------------------------------------
 |(E)  5.06   +1.16   +1.11 |1    |           |1986EgUBV........0M|
 

uvby1 (2)

 | b-y     m.e |  m1     m.e |  c1     m.e | nbme|    |     reference     |
 --------------------------------------------------------------------------
m| 0.689       | 0.537       | 0.399       |    3|    |1998A&AS..129..431H|
 

v* (1)

 |     vartyp     |    Vmax     p     Vmin    |   period   | epoch (JD)   |D/rt %|     reference     |
 -----------------------------------------------------------------------------------------------------
 |                |   4.98    : V    5.06    :|            |              |      |1981NVS...C......0K|
 

velocities (6)

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |V  |    3.03        0.10   |A (    )|s , ,O   ,           |          |       |  |2005A&A...430..165F|
 

External archives :

Data at NED - NASA/IPAC Extragalactic Database : 24 com A

Link by name to the catalogue in VizieR :

HD 109511 AG+18 1196 BD+19 2584 CCDM J12351+1823A FK5 473
HIC 61418 HIP 61418 HR 4792 IRAS 12326+1839 IRC +20244
2MASS J12350776+1822375 NSV 5748 PPM 129167 RAFGL 4853S SAO 100160
TYC 1446-2469-1 WDS J12351+1823A

Search by coordinates in Vizier (radius: 5 arcsec)


Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
The list of all annotations to SIMBAD objects can be found here .

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object



2017.10.18-09:29:06

© UDS/CNRS

Contact