eta Bootis

Query : eta Bootis
C.D.S. - SIMBAD4 rel 1.7 - 2018.11.18CET14:35:18

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


Basic data :
* eta Boo -- 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:
* (*,AG,...), X (1AXG,1E,...), ** (**,BDS,...), IR (IRAS,IRC,...), SB* (Ref,SBC7,...), PM* (LSPM,LTT,...), V* (NSV), UV (TD1)
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) :
13 54 41.07892 +18 23 51.7946 (Optical) [ 10.02 6.42 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) :
13 52 18.16552 +18 38 51.3318 [ 57.36 37.85 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 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) :
005.28851683 +73.03032439 [ 10.02 6.42 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 :
-60.95 -356.29 [1.14 0.73 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) 0.70 [0.60] / z(spectroscopic) 0.000002 [0.000002] / cz 0.70 [0.60]
   (Opt) A 2015A&A...574A..50J
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):
87.75 [1.24] 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:
G0IV B 1989ApJS...71..245K
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 (9) :
U 3.440 [0.010] C 1984A&AS...57..357O
B 3.250 [0.007] C 1991A&AS...89..415O
V 2.680 [0.009] C 1991A&AS...89..415O
R 2.24 [~] C 2002yCat.2237....0D
I 1.95 [~] C 2002yCat.2237....0D
G 2.4467 [0.0158] C 2018yCat.1345....0G
J 1.67 [~] C 2002yCat.2237....0D
H 1.39 [~] C 2002yCat.2237....0D
K 1.49 [~] C 2003yCat.2246....0C
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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 (66) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NAME Muphrid GCRV 8204 NLTT 35643 TYC 1470-1157-1
* eta Boo GEN# +1.00121370 NSV 19993 UBV 12376
* 8 Boo GJ 534 PLX 3175 UBV M 19832
** SHJ 169A GJ 534 A PLX 3175.00 USNO-B1.0 1083-00239773
AG+18 1285 GJ 534 B PMC 90-93 365 USNO 849
ASCC 869594 HD 121370 PPM 130166 uvby98 100121370
1AXG J135440+1823 HIC 67927 RAFGL 4923S WDS J13547+1824A
BD+19 2725 HIP 67927 ROT 2011 WEB 11935
BDS 6670 A HR 5235 RX J1354.7+1824 YZ 18 5045
CCDM J13547+1824A IDS 13499+1854 A RX J1354.6+1824 Zkh 205
CSI+19 2725 1 IRAS 13522+1838 1RXS J135441.2+182410 [HFE83] 987
1E 1352.3+1838 IRC +20267 SAO 100766 [TSA98] J135440.09+182358.11
2E 3150 JP11 2455 SBC7 503 [TSA98] J135439.99+182321.10
2E 1352.3+1838 LSPM J1354+1823 SBC9 794 [ZEH2003] RX J1354.6+1824 1
EXO 1352.3+1838 LTT 14060 SKY# 25509 Gaia DR2 1244946371540223872
FK5 513 2MASS J13544106+1823514 SRS 30513
GC 18805 N30 3162 TD1 17144

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References (634 between 1850 and 2019) (Total 634)
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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Collections of Measurements


velocities : 19    ROT : 6    PM : 5    Fe_H : 46    PLX : 3    MK : 35   

   

Observing logs


ISO : 1    IUE : 12   

   


External archives :

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

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

Link by name to the catalogue in VizieR :

AG+18 1285 BD+19 2725 CCDM J13547+1824A 2E 3150 FK5 513
GJ 534 GJ 534 A GJ 534 B HD 121370 HIC 67927
HIP 67927 HR 5235 IRAS 13522+1838 IRC +20267 LSPM J1354+1823
2MASS J13544106+1823514 NLTT 35643 NSV 19993 PLX 3175 PPM 130166
RAFGL 4923S 1RXS J135441.2+182410 SAO 100766 TD1 17144 TYC 1470-1157-1
USNO-B1.0 1083-00239773 uvby98 100121370 WDS J13547+1824A Gaia DR2 1244946371540223872

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2018.11.18-14:35:18

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