HD 16955

Query : HD 16955

Basic data :
HD 16955 -- Star
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,...), ** (**,ADS,...), MIR (WISEA,WISE), UV (TD1), NIR (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) : 		02 43 51.2435867712 +25 38 18.050045172 (Optical) [ 0.0291 0.0243 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) : 		02 40 56.7485301080 +25 25 36.858817226 [ 0.0291 0.0243 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) : 		152.5282568148789 -30.6944561637789 [ 0.0291 0.0243 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 : 		-5.889 5.982 [0.036 0.028 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) -10.30 [3.1] / z(~) -0.000034 [0.000010] / cz -10.30 [3.10]
   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): 		9.2563 [0.0357] 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: 		A3V C ~
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 (7) :
B 6.46 [0.01] D 2002A&A...384..180F
V 6.39 [0.01] D 2002A&A...384..180F
R 7.45 [0.16] E 2012yCat.1322....0Z
G 6.396055 [0.002827] C 2022yCat.1355....0G
J 6.164 [0.019] C 2003yCat.2246....0C
H 6.136 [0.018] C 2003yCat.2246....0C
K 6.137 [0.021] 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!). sed-help-icon

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (37) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 16955 GSC 01772-00041 SAO 75539 WEB 2592
** BU 306A HD 16955A SKY# 4098 WISEA J024351.26+253818.5
ADS 2082 A HIC 12744 TD1 1615 WISE J024351.25+253818.5
AG+25 236 HIP 12744 TIC 436852777 YZ 0 407
BD+25 441 HR 803 TYC 1772-41-1 YZ 25 816
CCDM J02439+2538A IDS 02380+2513 A UBV 2706 Gaia DR3 114259087990997248
CSI+25 441 1 2MASS J02435124+2538180 UBV M 9118 Gaia DR2 114259087990997248
GC 3282 PLX 553 UCAC4 579-006052
GCRV 1541 PLX 553.00 uvby98 100016955
GEN# +1.00016955 PPM 91931 WDS J02439+2538A

References (40 between 1850 and 2024) (Total 40)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Collections of Measurements


velocities : 4    distance : 3    ROT : 3    Fe_H : 1    PLX : 4    PM : 4    MK : 4   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

velocities (4) 

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |  -11.0                |  (   6)|s , ,    ,           |          |       |  |1995A&AS..114..269D|
 |v  |  -11.0         5.0    |E (   6)|s , ,    ,           |          |       |  |1953GCRV..C......0W|
 |V  |  -10.30        3.10   |C (    )|s , ,O   ,           |          |       |  |2006AstL...32..759G|
 |v  |  -12.3                |  (   6)|  , ,    ,           |          |       |  |1937PDAO....7....1H|

distance (3) 

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |  108.035   pc  |  -0.4166     +0.4166  |paral   |2020yCat.1350....0G|
 |  108.035   pc  |  -0.4167     +0.4167  |paral   |2020yCat.1350....0G|
 |  112.353   pc  |  -0.7258     +0.7258  |paral   |2018yCat.1345....0G|

rot (3) 

 |  Vsini  [  err   ] (mes)|Q|     reference     |
 -------------------------------------------------
 | 175     [        ] (  0)|D|2007A&A...463..671R|
 | 175     [        ] (   )|D|2002A&A...393..897R|
 | 160     [        ] (   )|D|1995ApJS...99..135A|

fe_h (1) 

 | Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 ------------------------------------------------------------
 |  8892       |        |         |     |2012A&A...537A.120Z|

plx (4) 

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
 |   9.2563  :   0.0357     |2020yCat.1350....0G|
 |   9.27    :   1.01       |1997A&A...323L..49P|
 |   9.59    :   0.76       |2007A&A...474..653V|
 |   8.9005  :   0.0575     |2018yCat.1345....0G|

pm (4) 

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |   -5.889[    0.036]|   +5.982[    0.028]|ICRS|2020yCat.1350....0G|
 |   -4.98 [    0.70 ]|   +6.04 [    0.52 ]|ICRS|2007A&A...474..653V|
 |   -5.20 [    1.08 ]|   +4.38 [    0.89 ]|ICRS|1997A&A...323L..49P|
 |   -5.729[    0.096]|   +5.909[    0.085]|ICRS|2018yCat.1345....0G|

mk (4) 

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
m|  /   |A3V                                 |1969AJ.....74..375C|
 |  /   |A2                                  |1993yCat.3135....0C|
 |  /   |A2.5V                               |1968RGOB..135..385P|
 |P /   |A3V                                 |1959ApJ...130..159O|
Observing logs


IUE : 1   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

iue (1) 

 |Homogenized Name:  ComplID   |PROG |CL|D CAM IMAGE A| FES  MD|Obs.da  Time |ExpTim|m|CEB|S|      Comments      |F|     reference     |
 ---------------------------------------------------------------------------------------------------------------------------------------
 |HD 16955        :            |NA098|30|L SWP 43609 L| 7547 FO|920111 145633|000090| |500|V|                    |*|1996IUEML.C......0I|

External archives :

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

Link by name to the catalogue in VizieR :

HD 16955 AG+25 236 BD+25 441 CCDM J02439+2538A GSC 01772-00041
HD 16955A HIC 12744 HIP 12744 HR 803 2MASS J02435124+2538180
PLX 553 PPM 91931 SAO 75539 TD1 1615 TYC 1772-41-1
UCAC4 579-006052 uvby98 100016955 WDS J02439+2538A WISEA J024351.26+253818.5 WISE J024351.25+253818.5
Gaia DR3 114259087990997248 Gaia DR2 114259087990997248

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