HD 00157056

Query : HD 00157056

Basic data :
* tet Oph -- beta Cep 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:
* (*,ALS,...), ** (**,WDS), UV (TD1,[SC96]), MIR (WISEA,WISE), bC* (2022A&A), V* (V*), NIR (2MASS), IR (IRAS)
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) :
17 22 00.5793468 -24 59 58.366974 (Optical) [ 0.15 0.09 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] : 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) :
17 18 56.1636389 -24 57 05.123463 [ 0.15 0.09 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) :
000.4644109462 +06.5523483436 [ 0.15 0.09 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 :
-7.37 -23.94 [0.18 0.10 90] 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) -2.10 [3.6] / z(~) -0.000007 [0.000012] / cz -2.10 [3.60]
   C 2007AN....328..889K
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):
7.48 [0.17] 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:
OB E 1939AnBos...5E...1W
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 2.18 [~] C 2002yCat.2237....0D
B 3.03 [~] C 2002yCat.2237....0D
V 3.26 [~] C 2002yCat.2237....0D
R 3.38 [~] C 2002yCat.2237....0D
G 3.259318 [0.003787] C 2022yCat.1355....0G
I 3.58 [~] C 2002yCat.2237....0D
J 3.75 [~] C 2002yCat.2237....0D
H 3.656 [0.192] D 2003yCat.2246....0C
K 3.831 [0.036] 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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The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (44) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* tet Oph HD 157056 ROT 2436 V* tet Oph
* 42 Oph HGAM 2063 SACS 375 WDS J17220-2500AB
** CHR 182 HIC 84970 SAO 185320 WEB 14352
ALS 15046 HIP 84970 SKY# 31331 WISEA J172200.59-245958.5
CD-24 13292 HR 6453 SRS 30644 WISE J172200.58-245958.7
CPD-24 5876 IRAS 17189-2457 TD1 20294 [B10] 4399
FK5 644 JP11 2846 TIC 83852015 [SC95] M 2
GC 23451 2MASS J17220058-2459580 TYC 6829-577-1 [SC96] GC 51
GCRV 10023 N30 3869 UBV 14787 [SC96] Mis 410
GEN# +1.00157056 PMC 90-93 458 UBV M 22126 Gaia DR3 4110730486352950144
GSC 06829-00577 PPM 266753 uvby98 100157056 Gaia DR2 4110730486344995456

References (332 between 1850 and 2024) (Total 332)
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 : 9    ROT : 3    Fe_H : 1    PLX : 3    PM : 5    MK : 22   

   

Observing logs


IUE : 13   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : HD 00157056

Link by name to the catalogue in VizieR :

ALS 15046 CD-24 13292 CPD-24 5876 FK5 644 GSC 06829-00577
HD 157056 HIC 84970 HIP 84970 HR 6453 IRAS 17189-2457
2MASS J17220058-2459580 PPM 266753 SAO 185320 TD1 20294 TYC 6829-577-1
uvby98 100157056 V* tet Oph WDS J17220-2500AB WISEA J172200.59-245958.5 WISE J172200.58-245958.7
Gaia DR3 4110730486352950144 Gaia DR2 4110730486344995456

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