alf2 cvn

Basic data :
* alf02 CVn -- alpha2 CVn 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: a2* (), * (HD,*,...), ** (**,ADS,...), PM* (2018yCat,LSPM,...), X (2E,RX,...), IR (IRAS,IRC), Pe* (2012MNRAS), V* (V*), blu (SBS), 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) : 12 56 01.6655889007 +38 19 06.155170512 (Optical) [ 0.4303 0.2394 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 FK5 coord. (ep=J2000 eq=2000) : 12 56 01.6659822701 +38 19 06.151157674 [ 0.4303 0.2394 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 FK4 coord. (ep=B1950 eq=1950) : 12 53 41.4792363868 +38 35 16.839480950 [ 0.4303 0.2394 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) : 118.3050120393242 +78.7686100174978 [ 0.4303 0.2394 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 : -233.776 55.035 [0.461 0.379 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) -4.10 [0.2] / z(~) -0.000014 [0.000001] / cz -4.10 [0.20]    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): 32.7227 [0.5844] 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: A0VpSiEu C 1995ApJS...99..135A 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 2.44 [~] C 2002yCat.2237....0D B 2.76 [~] C 2002yCat.2237....0D V 2.88 [~] C 2002yCat.2237....0D R 2.98 [~] C 2002yCat.2237....0D G 2.904393 [0.004025] C 2020yCat.1350....0G I 3.05 [~] C 2002yCat.2237....0D J 3.05 [~] C 2002yCat.2237....0D H 3.131 [0.186] D 2003yCat.2246....0C K 3.16 [~] C 2002yCat.2237....0D	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!).

HD 112413	FK5 485	LTT 13717	SKY# 24037
* alf CVn A	GC 17557	2MASS J12560168+3819059	SRS 30485
* alf02 CVn	GCRV 7733	N30 2983	TIC 17668155
* 12 CVn A	GEN# +1.00112413	NAME Cor Caroli	TYC 3021-2645-1
** STF 1692A	HGAM 621	NLTT 32338	UBV 11678
ADS 8706 A	HIC 63125	PLX 2969	UBV M 18844
AG+38 1225	HIP 63125	PMC 90-93 344	USNO-B1.0 1283-00241520
ASCC 494743	HR 4915	PPM 76815	uvby98 100112413
BD+39 2580	IDS 12514+3851 A	Renson 32650	V* alf02 CVn
BD+39 2580A	IRAS 12536+3835	ROT 1913	WDS J12560+3819A
CCDM J12560+3819A	IRAS F12536+3835	RX J1256.0+3818	WEB 11192
CSI+39 2580 1	IRC +40239	1RXS J125600.6+381856	[SS59] I 358
2E 2902	JP11 2336	SAO 63257	[ZEH2003] RX J1256.0+3818 1
2E 1253.6+3835	LSPM J1256+3819	SBS 74	Gaia DR3 1517698716348324992

References (52 between 2018 and 2023) (Total 676) 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 (20)

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |V  |   -1.7         1.3    |B (    )|s , ,O   ,           |          |       |  |2019AstBu..74...62M|
 

diameter (1)

 |diameterQ unit| error  | filter | method |     reference     |
 ---------------------------------------------------------------
 |4.76E+06  km  |        |V       |Interfer|2014MNRAS.443.1629S|
 

distance (1)

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |   30.5598  pc  |  -0.5457     +0.5457  |paral   |2020yCat.1350....0G|
 

rot (2)

 |  Vsini  [  err   ] (mes)|Q|     reference     |
 -------------------------------------------------
 |  17.3   [  2.2   ] (   )| |2019MNRAS.483.2300S|
 

fe_h (11)

 | Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 ------------------------------------------------------------
 | 11300 3.8   |        |         |     |2019AstBu..74...62M|
 

plx (3)

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
m|  29.60    :   1.04       |1997A&A...323L..49P|
 

pm (6)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 | -233.776[    0.461]|  +55.035[    0.379]|ICRS|2020yCat.1350....0G|
 

mk (27)

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
m|  /   |A0VpSiEu                            |1995ApJS...99..135A|
 

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   0.1580   207  A069 (HD 112413)                     12 56 01.06  +38 18 59.9  SDP_bmatthew_3     PacsPhoto           1103  2009-12-07T17:21:56  1342187808                             DEBRIS -PA069 (HD 112413)                                                                                             
    2   0.1581   207  A069                                 12 56 01.06  +38 18 59.9  SDP_bmatthew_3     PacsPhoto           1155  2009-12-07T17:01:38  1342187807                             DEBRIS -A069 - Scan                                                                                                   

iso (1)

The 2 columns in color are computed by VizieR, and are not part of the original data.
Note: Quick-look images of the data, and specific documentation, are accessible by clicking on the TDT observation identifier

VI/111/isolog Post annotation

ISO Observation Log (ISO Data Centre, 2004) [ReadMe+ftp] metaVI/111/isolog *The ISO Observation Log[image] (36737 rows) (Note)

start AladinLite

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

 Full      _r        TDT    AOT    minLam  maxLam  Target                                 oStart         oLen    recno   FOV                  RAJ2000   DEJ2000 cal  ObsID    abs  PropID  
        arcmin                      um      um                                             s             s                                     deg       deg                              

    1     0.203  23801409  PHT03    4.09  117.55  HD112413                        1996-07-12T10:57:58   1106      9589  120" D              194.0111  +38.3175      TRAY     +    EVOLDISK

iue (47)

 |Homogenized Name:  ComplID   |PROG |CL|D CAM IMAGE A| FES  MD|Obs.da  Time |ExpTim|m|CEB|S|      Comments      |F|     reference     |
 ---------------------------------------------------------------------------------------------------------------------------------------
 |HD 112413       :            |AVHEB|36|L SWP 27895 L| 1788 FU|860311 012200|000001| |500|G|C=245,B=15          |*|1996IUEML.C......0I|
 

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : alf2 cvn

Link by name to the catalogue in VizieR :

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

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report an error concerning the data of this object