coord 299.5903d35.2016d (ICRS, 2000, 2000), radius: 30 arcsec

Query : coord 299.5903d35.2016d (ICRS, 2000, 2000), radius: 30 arcsec
CLEAR

Basic data :
HD 226868 -- High Mass X-ray Binary
Distance to the center arcsec: 0.05
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,AG,...), X (3A,2E,...), gam (1FGL,INTEGRAL1,...), SB* (2019A&A,SBC7,...), V* (2012A&A,V*,...), HXB (2013ApJS), BH? (2007ApJS), El* (2003AstL), Ae* (1999AJ), s*b (2011ApJS), 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] : 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) :
19 58 21.6757355952 +35 12 05.784512688 (Optical) [ 0.0109 0.0130 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) :
19 56 28.8869704831 +35 03 54.822836853 [ 0.0109 0.0130 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) :
071.3349982655144 +03.0668346317201 [ 0.0109 0.0130 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 :
-3.812 -6.310 [0.015 0.017 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) -2.70 [3.2] / z(~) -0.000009 [0.000011] / cz -2.70 [3.20]
   C 2006AstL...32..759G
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):
0.4439 [0.0149] 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:
O9.7Iabpvar C 2011ApJS..193...24S
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) :
U 9.38 [~] C 1973LicOB..24....1B
B 9.72 [~] C 2002yCat.2237....0D
V 8.91 [~] C 2002yCat.2237....0D
R 8.42 [0.06] E 2009yCat.1315....0Z
G 8.536617 [0.002911] C 2020yCat.1350....0G
J 6.872 [0.023] C 2003yCat.2246....0C
H 6.652 [0.018] C 2003yCat.2246....0C
K 6.501 [0.020] 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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sedIcon
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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The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (53) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 226868 H 1956+350 SAO 69181 V* V1357 Cyg
3A 1956+350 H 1957+35 SBC7 776 WEB 17338
AG+35 1910 HIC 98298 SBC9 1193 1XRS 19564+350
ALS 10678 Hilt 849 SV* SVS 1808 X Cyg X-1
BD+34 3815 HIP 98298 SWIFT J1958.4+3510 [AAA2018] FGL J1958.6+3510
CGO 548 INTEGRAL1 116 SWIFT J1958.3+3512 [BM83] X1956+350
2E 4306 INTREF 1001 TIC 102604645 [KRL2007b] 370
2E 1956.4+3503 LS II +35 8 TYC 2678-791-1 [MJD95] J195821.72+351205.9
1FGL J1958.9+3459 1M 1956+350 2U 1956+35 AAVSO 1954+34
GCRV 12319 2MASS J19582166+3512057 3U 1956+35 Gaia EDR3 2059383668236814720
GEN# +1.00226868 MCW 770 4U 1956+35 Gaia DR2 2059383668236814720
GOS G071.34+03.07 01 PBC J1958.3+3512 UBV 17047
GSC 02678-00791 PPM 83929 UBV M 27507
1H 1956+350 1RXS J195821.9+351156 uvby98 100226868

References (4090 between 1850 and 2022) (Total 4090)
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    distance : 3    ROT : 2    PLX : 5    PM : 4    MK : 5   

   

Observing logs


herschel : 10    ISO : 6    IUE : 54    XMM : 12   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : HD 226868

Link by name to the catalogue in VizieR :

HD 226868 AG+35 1910 ALS 10678 BD+34 3815 2E 4306
GSC 02678-00791 HIC 98298 HIP 98298 LS II +35 8 2MASS J19582166+3512057
PPM 83929 1RXS J195821.9+351156 SAO 69181 TYC 2678-791-1 uvby98 100226868
V* V1357 Cyg Gaia EDR3 2059383668236814720 Gaia DR2 2059383668236814720

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Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

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2022.05.24-00:59:25

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