CDS

alf2 cvn

C.D.S. - SIMBAD4 rel 1.7 - 2019.04.18CEST21:33:50

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations

Basic data :
* alf02 CVn -- Variable Star of alpha2 CVn type
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* (), * (*,AG,...), ** (**,ADS,...), PM* (Ref,LSPM,...), IR (IRAS,IRC,...), X (2E,RX,...), Pe* (Ref), V* (V*), blu (SBS)
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] : coordinates error major axis, minor axis (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 01.6542825055 +38 19 06.090137145 (Optical) [ 0.5278 0.3803 90 ] A 2018yCat.1345....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] : coordinates error major axis, minor axis (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 01.6542825055 +38 19 06.090137145 [ 0.5278 0.3803 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] : coordinates error major axis, minor axis (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 41.4287511360 +38 35 16.564588772 [ 0.5278 0.3803 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] : coordinates error major axis, minor axis (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) : 		118.3051967028143 +78.7686291362804 [ 0.5278 0.3803 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 : 		-224.681 59.324 [1.452 1.143 90] A 2018yCat.1345....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): 		26.5657 [0.5927] A 2018yCat.1345....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
I 3.05 [~] C 2002yCat.2237....0D
G 5.5323 [0.1436] C 2018yCat.1345....0G
J 3.05 [~] C 2002yCat.2237....0D
H 3.131 [0.186] D 2003yCat.2246....0C
K 3.16 [~] C 2002yCat.2237....0D
SIMBAD with radius arcmin
Interactive AladinLite view
Back
sedIcon
VizieR photometry viewer    sed-help-icon
within radius 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!).

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 1 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (55) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

V* alf02 CVn FK5 485 LSPM J1256+3819 SBS 74
* alf CVn A GC 17557 LTT 13717 SKY# 24037
* alf02 CVn GCRV 7733 2MASS J12560168+3819059 SRS 30485
* 12 CVn A GEN# +1.00112413 N30 2983 TYC 3021-2645-1
** STF 1692A HD 112413 NAME Cor Caroli UBV 11678
ADS 8706 A HGAM 621 NLTT 32338 UBV M 18844
AG+38 1225 HIC 63125 PLX 2969 USNO-B1.0 1283-00241520
ASCC 494743 HIP 63125 PMC 90-93 344 uvby98 100112413
BD+39 2580 HR 4915 PPM 76815 WDS J12560+3819A
BD+39 2580A IDS 12514+3851 A Renson 32650 WEB 11192
CCDM J12560+3819A IRAS 12536+3835 ROT 1913 [SS59] I 358
CSI+39 2580 1 IRAS F12536+3835 RX J1256.0+3818 [ZEH2003] RX J1256.0+3818 1
2E 2902 IRC +40239 1RXS J125600.6+381856 Gaia DR2 1517698716348324992
2E 1253.6+3835 JP11 2336 SAO 63257

Plots and Images

plot

radius arcmin


CDS portal
CDS Simplay
(requires flash)
Aladin applet

References (54 between 2014 and 2019) (Total 630)
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


distance : 1    diameter : 1    velocities : 15    PM : 6    Fe_H : 10    PLX : 3    MK : 26    V* : 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)

distance (1) 

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |   37.6425  pc  |  -0.8398     +0.8398  |paral   |2018yCat.1345....0G|

diameter (1) 

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

velocities (15) 

 |typ|    Value    R   m.e.   |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 -------------------------------------------------------------------------------------------------------
 |v  |   -3.3                 |  (  72)|s , ,    ,           |          |       |  |1995A&AS..114..269D|

pm (6) 

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 | -224.681[    1.452]|  +59.324[    1.143]|ICRS|2018yCat.1345....0G|

fe_h (10) 

 |Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 -----------------------------------------------------------
 | 9164 4.50  | 0.46   |SUN      |     |1960MmSAI..31..279H|

plx (3) 

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

mk (26) 

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

v* (1) 

 |     vartyp     |    Vmax     p     Vmin    |   period   | epoch (JD)   |D/rt %|     reference     |
 -----------------------------------------------------------------------------------------------------
m|aCV             |   2.78      B    2.81     |   5.4694   | 2420242.24   |      |1971GCVS3.C......0K|
Observing logs


ISO : 1    herschel : 2    IUE : 47   

   

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)

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]

*The ISO Observation Log (36737 rows) (Note)		img(gal)
start AladinLite 
 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     0.205  23801409  PHT03    4.09  117.55  HD112413                        1996-07-12T10:57:58   1106      9589  120" D              194.0111  +38.3175      TRAY     +    EVOLDISK

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

The Herschel Observation Log (37093 rows)		img(gal)
start AladinLite 
 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   0.1557   207  A069 (HD 112413)                     12 56 01.06  +38 18 59.9  SDP_bmatthew_3     PacsPhoto           1103  2009-12-07T17:21:56  1342187808  get Herschel/PACS observation #1342187808                           DEBRIS -PA069 (HD 112413)                                                                                             
    2   0.1557   207  A069                                 12 56 01.06  +38 18 59.9  SDP_bmatthew_3     PacsPhoto           1155  2009-12-07T17:01:38  1342187807  get Herschel/PACS observation #1342187807                           DEBRIS -A069 - Scan

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 :

V* alf02 CVn AG+38 1225 BD+39 2580 CCDM J12560+3819A 2E 2902
FK5 485 HD 112413 HIC 63125 HIP 63125 HR 4915
IRAS 12536+3835 IRAS F12536+3835 IRC +40239 LSPM J1256+3819 2MASS J12560168+3819059
NLTT 32338 PLX 2969 PPM 76815 1RXS J125600.6+381856 SAO 63257
TYC 3021-2645-1 USNO-B1.0 1283-00241520 uvby98 100112413 WDS J12560+3819A Gaia DR2 1517698716348324992

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 .
The list of all annotations to SIMBAD objects can be found here .

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object

2019.04.18-21:33:51

© Université de Strasbourg/CNRS

    • Contact