44 Bootis

Query : 44 Bootis
C.D.S. - SIMBAD4 rel 1.7 - 2018.11.15CET04:26:36

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


Basic data :
* i Boo -- Eclipsing binary of W UMa type
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:
WU* (), * (*,BD,...), X (Ref,1AXG,...), ** (Ref,**,...), UV (2EUVE,EUVE,...), IR (IRAS,2MASS,...), SB* (SBC7,SBC9), PM* (Ref,Ci), V* (V*)
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 defined epoch and convolved with error on propermotion),
    position angle (in degrees North celestial pole to East)
  • 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) :
15 03 47.29565 +47 39 14.6228 (Optical) [ 14.67 12.65 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 defined epoch and convolved with error on propermotion),
    position angle (in degrees North celestial pole to East)
  • 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) :
15 02 08.41143 +47 50 52.8230 [ 84.78 73.10 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 defined epoch and convolved with error on propermotion),
    position angle (in degrees North celestial pole to East)
  • 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) :
080.36968939 +57.06601238 [ 14.67 12.65 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 :
-445.84 19.86 [1.44 1.67 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) -17.89 [0.4] / z(~) -0.000060 [0.000001] / cz -17.89 [0.40]
   A 2005MNRAS.357..497B
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):
79.95 [1.56] A 2007A&A...474..653V
Spectral type is made of 3 parts: %coding is composed of 4 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 %
  • a quality letter: A=best quality -> E=worst quality, {� } =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type:
G0Vn C 2001AJ....121.2148G
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 5.41 [~] C ~
V 4.76 [~] C ~
J 3.42 [0.28] D 2003yCat.2246....0C
H 3.12 [0.23] D 2003yCat.2246....0C
K 3.01 [0.27] D 2003yCat.2246....0C
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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!).

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

The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 2
Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (54) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

V* i Boo 2EUVE J1503+47.6 NAME I Boo* SBC9 826
* i Boo EUVE J1503+47.6 PLX 3410 SKY# 27315
* 44 Boo EXO 1502.0+4749 PMSC 15005+4803 TD1 17940
** STF 1909 GC 20281 RBS 1458 UBV M 20543
** STF 1909AB GCRV 65212 2RE J150345+473901 UCAC3 276-123545
ADS 9494 AB GEN# +1.00133640J 2RE J1503+473 UCAC4 689-055438
1AXG J150349+4739 GJ 575 RE J150345+473900 uvby98 100133640 ABV
BD+48 2259 HD 133640 RE J1503+473 WDS J15038+4739AB
CCDM J15038+4739AB HIC 73695 ROT 5698 WEB 12597
Ci 20 907 HIP 73695 RX J1503.7+4739 WISEA J150346.76+473916.8
CSI+48 2259 1 HR 5618 RX J1503.8+4739 [FS2003] 0748
2E 3373 IRAS 15021+4750 1RXS J150348.3+473924 [ZEH2003] RX J1503.8+4739 1
2E 1502.1+4751 2MASS J15034736+4739152 SAO 45357
1ES 1502+47.8 N30 3404 SBC7 529

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References (515 between 1850 and 2019) (Total 515)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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                Reference summaries :

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Collections of Measurements


velocities : 15    ROT : 3    PM : 5    Fe_H : 12    PLX : 2    MK : 1    V* : 2   

   

Observing logs


XMM : 1    herschel : 2    IUE : 54   

   


External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : 44 Bootis

Link by name to the catalogue in VizieR :

V* i Boo BD+48 2259 CCDM J15038+4739AB 2E 3373 EUVE J1503+47.6
GJ 575 HD 133640 HIC 73695 HIP 73695 HR 5618
IRAS 15021+4750 2MASS J15034736+4739152 PLX 3410 2RE J150345+473901 2RE J1503+473
1RXS J150348.3+473924 SAO 45357 TD1 17940 UCAC3 276-123545 UCAC4 689-055438
uvby98 100133640 ABV WDS J15038+4739AB WISEA J150346.76+473916.8

Search by coordinates in Vizier (radius: 9 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 .

display existing annotations (4)

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2018.11.15-04:26:36

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