BD+22 4409

Query : BD+22 4409

Basic data :
BD+22 4409 -- BY Dra Variable
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:
* (BD,AG,...), PM* (2016ApJS,G,...), X (1ES,RE,...), V* (ASAS,1SWASP,...), IR (2MASS,WISEA,...), ** (**,WDS), UV (2EUVE,EUVE), BY* (2017ARep), SB* (2018A&A), Er* ([GKL99])
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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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) :
21 31 01.7140062576 +23 20 07.374015564 (Optical) [ 0.0115 0.0078 90 ] A 2020yCat.1350....0G
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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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) :
21 28 44.9156539186 +23 06 59.857982057 [ 0.0115 0.0078 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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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) :
074.3339163012173 -20.0926331201413 [ 0.0115 0.0078 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 :
134.654 -144.889 [0.013 0.008 90] A 2020yCat.1350....0G
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) -23.36 [1.75] / z(spectroscopic) -0.000078 [0.000006] / cz -23.36 [1.75]
   (Opt) B 2018yCat.1345....0G
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):
41.2912 [0.0169] A 2020yCat.1350....0G
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:
K3Vke C 2003AJ....126.2048G
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 (8) :
B 10.240 [0.032] D 2000A&A...355L..27H
V 9.245 [0.018] D 2000A&A...355L..27H
R 8.6 [~] E 2003AJ....125..984M
G 8.871964 [0.003106] C 2020yCat.1350....0G
I 7.965 [0.042] C 2012AcA....62...67K
J 7.075 [0.021] C 2003yCat.2246....0C
H 6.524 [0.040] C 2003yCat.2246....0C
K 6.382 [0.026] C 2003yCat.2246....0C
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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within 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!).
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 2 : 773 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (40) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

BD+22 4409 GEN# +0.02204409 PLX 5188.02 USNO-B1.0 1133-00542552
** LAF 65A G 145-43 PPM 113118 V* LO Peg
AG+23 2203 GJ 4199 RE J2131+23 VVO 163
ASAS J213102+2320.1 GSC 02188-01136 RE J2131+233 WDS J21310+2320A
ASAS J213101+2320.1 HIC 106231 RX J2131.0+2320 WISEA J213101.81+232005.8
ASCC 819839 HIP 106231 1RXS J213101.3+232009 WISE J213101.81+232005.9
1ES 2128+23.1 LSPM J2131+2320 1SWASP J213101.71+232007.3 [GKL99] 407
2EUVE J2131+23.3 2MASS J21310171+2320074 TIC 283436283 Gaia EDR3 1797276382668029440
EUVE J2131+23.3 MCC 890 TYC 2188-1136-1 Gaia DR1 1797276378371105024
GCRV 72238 NLTT 51435 UCAC2 40107057 Gaia DR2 1797276382668029440

References (163 between 1850 and 2022) (Total 163)
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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                 or select by : (not exhaustive, explanation here)


Collections of Measurements


velocities : 5    V* : 4    diameter : 1    distance : 3    ROT : 2    Fe_H : 2    PLX : 6    PM : 8    MK : 2   

   

Observing logs


IUE : 2   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : BD+22 4409

Link by name to the catalogue in VizieR :

BD+22 4409 AG+23 2203 EUVE J2131+23.3 G 145-43 GJ 4199
GSC 02188-01136 HIC 106231 HIP 106231 LSPM J2131+2320 2MASS J21310171+2320074
NLTT 51435 PPM 113118 1RXS J213101.3+232009 TYC 2188-1136-1 UCAC2 40107057
USNO-B1.0 1133-00542552 V* LO Peg WDS J21310+2320A WISEA J213101.81+232005.8 WISE J213101.81+232005.9
[GKL99] 407 Gaia EDR3 1797276382668029440 Gaia DR1 1797276378371105024 Gaia DR2 1797276382668029440

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Annotations :
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2022.07.04-04:54:22

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