HD 2475

Basic data :
HD 2475 -- Double or Multiple 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: * (BD,CSI,...), ** (2002A&A,CCDM,...), MIR (WISEA,WISE), PM* (2016ApJS), X (1RXS), 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) : 00 28 21.09548 -20 20 06.1774 (Optical) [ 6.41 4.05 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) : 00 25 50.69987 -20 36 35.9771 [ 6.41 4.05 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) : 083.85325216 -81.39721854 [ 6.41 4.05 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 : -118.98 -112.03 [0.73 0.46 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) 6.90 [0.4] / z(~) 0.000023 [0.000001] / cz 6.90 [0.40]    A 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): 31.06 [0.68] 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: F9VFe+0.5 C 2006AJ....132..161G Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode" maj-axis : major axis size (arc minutes) min-axis : minor axis size (arc minutes) angle : orientation angle (in degrees) (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam) quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality) bibcode : bibcode of the angular size reference Angular size (arcmin): 0.0033 0.0 137 (Opt) D 2001AJ....122.3466M 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 (6) : B 7.02 [0.02] D 2002A&A...384..180F V 6.44 [0.01] D 2002A&A...384..180F G 6.598961 [0.013563] C 2022yCat.1355....0G J 5.420 [0.032] E 2003yCat.2246....0C H 5.117 [0.026] C 2003yCat.2246....0C K 4.999 [0.016] 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 points in this preview 2MASS DSS SDSSXMMIRACIRISGALEX All (CDSPortal) Send to 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!).

CCDM J00284-2020AB	GEN# +1.00002475	PPM 242868	uvby98 100002475
** B 1909	GSC 05846-00959	1RXS J002821.4-202004	WDS J00284-2020AB
BD-21 57	HD 2475	SAO 166296	WEB 416
CSI-21 57 1	HIC 2237	SKY# 779	WISEA J002821.00-202007.3
CSI-21 57 2	HIP 2237	SRS 3156	WISE J002820.99-202007.2
CSI-21 57 3	HR 108	TD1 242	YZ 110 106
FK5 2029	IDS 00233-2053 AB	TYC 5846-959-1	Gaia DR3 2363291052952046208
GC 554	2MASS J00282108-2020062	UBV 348	Gaia DR2 2363291052952046208
GCRV 50408	N30 88	UCAC4 349-000524

References (91 between 1850 and 2024) (Total 91) 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

Collections of Measurements

velocities (5)

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |    6.4                |  (   4)|s , ,    ,           |          |       |  |1995A&AS..114..269D|
 |V  |    6.90        0.40   |A (    )|s , ,O   ,           |          |       |  |2006AstL...32..759G|
 |v  |    6.9                |A (  84)|  , ,    ,           |          |       |  |2004A&A...418..989N|
 |v  |    6.4                |C (   4)|  , ,    ,           |          |##     |  |1979IAUS...30...57E|
 |v  |    6.4                |  (   4)|  , ,    ,           |          |       |  |1966RGOB..110..185E|
 

rot (2)

 |  Vsini  [  err   ] (mes)|Q|     reference     |
 -------------------------------------------------
 |   8.8   [        ] (   )|D|2017AJ....153...21L|
 |   8.8   [        ] (   )| |2017AJ....153...21L|
 

fe_h (3)

 | Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 ------------------------------------------------------------
 |  6012 4.19  | 0.08   |SUN      |     |2017AJ....153...21L|
 |  5897 4.24  |        |         |     |2003AJ....125.1598L|
 |  5974       |        |         |     |2011A&A...530A.138C|
 

plx (2)

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
 |  31.01    :   0.87       |1997A&A...323L..49P|
 |  31.06    :   0.68       |2007A&A...474..653V|
 

pm (3)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 | -110.2  [    8.2  ]|  -99.0  [    8.4  ]|ICRS|2016ApJS..224...36K|
 | -118.98 [    0.73 ]| -112.03 [    0.46 ]|ICRS|2007A&A...474..653V|
 | -118.11 [    0.95 ]| -112.69 [    0.57 ]|ICRS|1997A&A...323L..49P|
 

mk (5)

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
 |  /   |G0                                  |1993yCat.3135....0C|
 |  /   |G3V                                 |1988MSS...C04....0H|
 |  /   |F9 V Fe+0.5                         |2006AJ....132..161G|
 |  /   |G2IV-V                              |1976AJ.....81..245E|
 |  /   |G1V                                 |1969PASP...81..643C|
 

herschel (2)

The 1 column in color are computed by VizieR, and are not part of the original data.

Note: (see also the postcard server)

VI/139/herschel Post annotation

Herschel Observation Log (Herschel Science Centre, 2013) [ReadMe+ftp] 2013yCat.6139....0H metaVI/139/herschel The Herschel Observation Log (37093 rows)

start AladinLite

http://cdsportal.u-strasbg.fr/widgets/dataplot/dataplot.html?dataset_url_1=

 Full      _r     OD   Target                                 RAJ2000      DEJ2000    Proposal           AOT                 Dur          Start            ObsId       PACS        HIFI        SPIRE    Label                                                                                                                 
        arcmin                                               "h:m:s"      "d:m:s"                                            s             s                                                                                                                                                                                 

    1   0.0011   974  HIP2237                              00 28 21.10  -20 20 06.2  OT2_gkennedy_2     PacsPhoto            445  2012-01-12T12:00:32  1342237340                             HIP2237_110                                                                                                           
    2   0.0011   974  HIP2237                              00 28 21.10  -20 20 06.2  OT2_gkennedy_2     PacsPhoto            445  2012-01-12T11:52:04  1342237339                             HIP2237_70                                                                                                            

External archives :

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

Link by name to the catalogue in VizieR :

Search by coordinates in Vizier (radius: 5 arcsec)

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