HR 4751

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C.D.S. - SIMBAD4 rel 1.5.11 - 2017.03.28CEST19:44:50

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


Basic data :
* 17 Com B -- Spectroscopic binary
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,*,...), ** (**,ADS,...), SB* (Ref,SBC7,...), *iC (Cl*,Cl), IR (2MASS)
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 28 44.56525 +25 53 57.5585 (Optical) [ 3.69 2.81 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 28 44.565 +25 53 57.56 [ 3.69 2.81 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 26 14.79 +26 10 33.3 [ 21.19 16.42 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) :
225.2606 +84.7769 [ 3.69 2.81 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 :
-20.28 -16.43 [0.42 0.32 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) -1.80 [0.1] / z(~) -0.000006 [0.000000] / cz -1.80 [0.10]
   A 2004A&A...424..727P
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):
14.62 [0.41] 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:
A0p C ~
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 6.87 [~] C ~
V 6.65 [~] C ~
J 6.165 [0.026] C 2003yCat.2246....0C
H 6.100 [0.024] C 2003yCat.2246....0C
K 6.056 [0.023] C 2003yCat.2246....0C
SIMBAD with radius arcmin
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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:


The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (33) :

HD 108651 Cl Melotte 111 145 JP11 5070 TYC 1989-3208-1
* 17 Com B GC 17007 2MASS J12284457+2553575 UBV 11212
** BU 1080BC GCRV 7502 PPM 101925 UBV M 41711
ADS 8568 BC GEN# +5.21110145J Renson 31540 WDS J12289+2555BC
AG+26 1276 GSC 01989-03208 ROT 3938 YZ 26 6132
BD+26 2353 HIC 60891 SAO 82328 [SS59] I 289
CCDM J12289+2554BC HIP 60891 SBC7 464
Cl* Melotte 111 AV 1808 HR 4751 SBC9 727
Cl* Melotte 111 BOU 14 IDS 12239+2628 BC SKY# 23342

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References (7 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

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

                                 


Measurements (17 types) :


Fe_H : 2    GEN : 1    Hbet : 7    ISO : 1    IUE : 1    JP11 : 1    MK : 8    oRV : 8    PLX : 2    PM : 3    pos : 3    posa : 1   
ROT : 3    SAO : 1    UBV : 11    uvby : 7    velocities : 9   

   

fe_h (2)

 |Teff  log.g |Fe_H  c|CompStar |CatNo|     Reference     |
 ----------------------------------------------------------
 | 7875       | 0.39  |SUN      |C503 |1987ApJ...321..967B|
 

gen (1)

 | U-B  | V-B  | B1-B | B2-B | V1-B | G-B  |Wt : m.e | Vmag |Wt : m.e | Rem |     reference     |
 ------------------------------------------------------------------------------------------------
m| 1.516| 0.689| 0.958| 1.411| 1.400| 1.828|  6:0.007| 6.624|  5:0.009|D    |1976A&AS...26..275R|
 

hbet (7)

 |H-bet |Rnmes|     reference     |
 ----------------------------------
m| 2.843|     |1980A&AS...40....1H|
 

iso (1)

The 2 columns in color are computed by VizieR, and are not part of the original data.
Note: Quick-look images of the data, and specific documentation, are accessible by clicking on the TDT observation identifier
VI/111/isolog
Post annotation
ISO Observation Log (ISO Data Centre, 2004) [ReadMe+ftp]

*The ISO Observation Log (36737 rows) (Note)
img(gal)
start AladinLite

Full _r TDT AOT minLam maxLam Target oStart oLen recno FOV RAJ2000 DEJ2000 cal ObsID abs PropID arcmin um um s s deg deg
1 0.034 23401308 PHT22 54.76 118.38 CB_A_CB145 1996-07-07T23:40:09 722 9359 135.5"x135.5" 187.1863 +25.8992 EBECKLIN + DEBRS10B

iue (1)

 |Homogenized Name:  ComplID   |PROG |CL|D CAM IMAGE A| FES  MD|Obs.da  Time |ExpTim|m|CEB|S|      Comments      |F|     reference     |
 ---------------------------------------------------------------------------------------------------------------------------------------
 |HD 108651       :            |AMEJL|35|L LWR 13709 L| 7042 FO|820718 155200|000180|T|503|G|C=220,B=42          |*|1996IUEML.C......0I|
 

jp11 (1)

 | U:360  ( nmes)| B:450  ( nmes)| V:555  ( nmes)| R:670  ( nmes)| I:870  ( nmes)|J:1200  ( nmes)|K:2200  ( nmes)|L:3500  ( nmes)|M:5000  ( nmes)|N:9000  ( nmes)|H:16200 ( nmes)|     reference     |
 -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 |  6.95  (    9)|  6.87  (    9)|  6.65  (    9)|  6.50  (    9)|  6.42  (    9)|        (     )|        (     )|        (     )|        (     )|        (     )|        (     )|1966CoLPL...4...99J|
 

mk (8)

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
 |  /   |A2m                                 |1969AJ.....74..375C|
 

orv (8)

 | RVel.  Q  (Nmes)| Rem.  |Or Dis|     reference     |
 ------------------------------------------------------
m|   -1.7 B  (  22)|       |##    |1979IAUS...30...57E|
 

plx (2)

 | plx  :m.e R |     reference     |
 -----------------------------------
 | 0.015:000   |2007A&A...474..653V|
 

pm (3)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |  -20    [    0    ]|  -16    [    0    ]|ICRS|2007A&A...474..653V|
 

pos (3)

 |     ra           dec     |me.al me.de|equi  epoch |     reference     |
 -------------------------------------------------------------------------
 |12 28 44.57 +25 53 57.56  |0.133 0.085|2000 1991.25|1997A&A...323L..49P|
 

posa (1)

 |    alpha        delta    | MajAxis , MinAxis    PA  |equi  epoch |     reference     |
 ----------------------------------------------------------------------------------------
 |12 28 44.578 +25 53 57.70 |    0.000,    0.000    0  |2000 1991.25|2007A&A...474..653V|
 

rot (3)

 |  Vsini  [  err   ] (mes)|Q|     reference     |
 -------------------------------------------------
 |  26     [        ] (   )|D|2002A&A...393..897R|
 

sao (1)

 |   alpha        delta      :m.e | pm-ra :m.e| pm-de :m.e|     reference     |
 ------------------------------------------------------------------------------
m|12 26 14.798 +26 10 33.26  :0.24| -0.019:004| -0.025:004|1966SAO...C......0S|
 

ubv (11)

 |      V      B-V     U-B  |Q/nbm|  remarks  |     reference     |
 ------------------------------------------------------------------
 |     6.65   +0.22   +0.08 |A+A+A|           |1978A&AS...34....1N|
 

uvby (7)

 | b-y  |  m1  |  c1  | nbme|     reference     |
 ------------------------------------------------
m| 0.120| 0.231| 0.833|     |1980A&AS...40....1H|
 

velocities (9)

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom , res D| Obs.date | Rem.  |Or|     Reference     |
 -------------------------------------------------------------------------------------------------
 |V  |   -1.80        0.10   |A (    )|s , ,O   ,      |          |       |  |2004A&A...424..727P|
 

External archives :

Link by name to the catalogue in VizieR :

HD 108651 AG+26 1276 BD+26 2353 CCDM J12289+2554BC GSC 01989-03208
HIC 60891 HIP 60891 HR 4751 2MASS J12284457+2553575 PPM 101925
SAO 82328 TYC 1989-3208-1 WDS J12289+2555BC

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 .

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2017.03.28-19:44:51

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