BF Lyn

Query : BF Lyn C.D.S. - SIMBAD4 rel 1.225 - 2015.08.31CEST15:19:21

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


Basic data :
V* BF Lyn -- Variable of BY Dra 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:
BY* (), * (AG,AGKR,ASCC,BD,DO,Furuhjelm​,GC,GCRV,GEN#,GJ​,HD,HIC,HIP,LAL​,PLX,PPM,SAO,SKY#​,TYC,UBV,USNO,uvby98,[HFE83]), PM* (Ci,G,LFT,LHS,LSPM,LTT​,NLTT), X (1ES,RBS,RE,RX,1RXS,[FS2003]), IR (AKARI,IRAS,2MASS), UV (2EUVE,EUVE,2RE), SB* (CABS,CCABS), Fl* ([GKL99]), 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 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) :
09 22 25.94511 +40 12 03.8146 ( Optical ) [ 7.64 3.44 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) :
09 22 25.945 +40 12 03.81 [ 7.64 3.44 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) :
09 19 17.42 +40 25 11.8 [ 43.64 20.94 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) :
182.0454 +45.2733 [ 7.64 3.44 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 :
-341.40 -359.04 [0.87 0.39 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) -3.20 [1.16] / z(~) -0.000011 [0.000004] / cz -3.20 [1.16]   (~) B 2004MNRAS.349.1069K
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:
40.10 [0.64] 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:
K2.5Vke C 2003AJ....126.2048G
Syntax of fluxes (or magnitudes) is : "filter-name flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, J, H, K, u, g, r, i, z
  • 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 (7) :
B 8.62 [~] C ~
V 7.63 [~] C ~
R 7.1 [~] E 2003AJ....125..984M
I 6.6 [~] E 2003AJ....125..984M
J 5.759 [0.023] C 2003yCat.2246....0C
H 5.293 [0.021] C 2003yCat.2246....0C
K 5.139 [0.020] C 2003yCat.2246....0C
SIMBAD with radius arcmin
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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!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (53) :

V* BF Lyn Furuhjelm I-77 LSPM J0922+4012 SAO 42826
AG+40 1054 GC 12917 LTT 12463 SKY# 18099
AGKR 8438 GCRV 6096 2MASS J09222596+4012040 TYC 2994-80-1
AKARI-IRC-V1 J0922256+401200 GEN# +1.00080715 NLTT 21570 UBV 8920
ASCC 405159 G 117-9 PLX 2230 UBV M 15315
BD+40 2197 G 116-23 PLX 2230.00 USNO-B1.0 1302-00198068
CABS 84 GJ 1124 PPM 51196 uvby98 100080715 V
CCABS 70 HD 80715 RBS 768 [FS2003] 0505
Ci 18 1104 HIC 45963 2RE J0922+401 [GKL99] 204
Ci 20 520 HIP 45963 2RE J092226+401210 [HFE83] 653
DO 13874 IRAS 09192+4025 RE J092226+401146 [ZEH2003] RX J0922.4+4012 2
1ES 0919+40.4 LAL 18397 RE J0922+401
2EUVE J0922+40.2 LFT 641 RX J0922.4+4012
EUVE J0922+40.2 LHS 2131 1RXS J092226.2+401213

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References (96 between 1850 and 2015)
Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Measurements (15 types) :


Einstein : 1    Fe_H : 1    GJ : 2    Hbet1 : 2    IRAS : 1    MK : 1    oRV : 3    PLX : 6    PM : 9    pos : 4    posa : 1    SAO : 1   
UBV : 2    uvby1 : 3    velocities : 5   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database

Catalogue information from VizieR :

Generic search by coordinates (radius: 10 arcsec)

V* BF Lyn AG+40 1054 BD+40 2197 CABS 84 EUVE J0922+40.2
G 117-9 G 116-23 GJ 1124 HD 80715 HIC 45963
HIP 45963 IRAS 09192+4025 LHS 2131 LSPM J0922+4012 2MASS J09222596+4012040
NLTT 21570 PPM 51196 2RE J0922+401 2RE J092226+401210 1RXS J092226.2+401213
SAO 42826 TYC 2994-80-1 USNO-B1.0 1302-00198068 [GKL99] 204

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The list of all annotations to SIMBAD objects can be found here .

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2015.08.31-15:19:21

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