alf com

Gaia DR2: For now, Gaia DR2 data are not in SIMBAD, it is available in Vizier. The CDS will perform a cross-identification of Gaia DR2 with the astronomical objects in the SIMBAD bibliographic database. This will be done with very strict criteria in order to avoid erroneous cross-identifications. Especially, only the 6.5 milllions objects with subarseconds coordinates will be searched in Gaia DR2. Expected to be ready on June 30, 2018.

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C.D.S. - SIMBAD4 rel 1.7 - 2018.06.20CEST00:06:21

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

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Basic data :
* alf Com -- 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: * (*,AG,...), ** (CCDM,**,...), PM* (Ci,LSPM,...), IR (AKARI,IRAS,...), V* (CSV,NSV,...), UV (TD1) 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 epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) 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) : 13 09 59.28520 +17 31 46.0389 (Optical) [ 6.17 4.51 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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) 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) : 13 09 59.285 +17 31 46.04 [ 6.17 4.51 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 epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) 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) : 13 07 33.33 +17 47 36.3 [ 35.29 26.24 0 ] 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 epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) 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) : 327.9334 +79.4894 [ 6.17 4.51 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 : -433.13 141.24 [0.70 0.51 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) -16.05 [0.21] / z(~) -0.000054 [0.000001] / cz -16.05 [0.21]    A 2010A&A...521A..12M 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): 56.10 [0.89] 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: F5V+F6V C 2013MNRAS.428.3104E 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 4.77 [~] C ~ V 4.32 [~] C ~ R 4.1 [~] E 2003AJ....125..984M I 3.9 [~] E 2003AJ....125..984M J 3.40 [~] C 2003yCat.2246....0C H 3.27 [~] C 2003yCat.2246....0C K 3.11 [~] C 2003yCat.2246....0C	SIMBAD with radius arcmin Interactive AladinLite view 2MASS DSS SDSSXMMIRACIRISGALEX VizieR photometry viewer    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!).

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Hierarchy : number of linked objects whatever the membership probability is (see description here ) : The count displayed here is the number of children objects. The list obtained by clicking the button may be larger, as some children may be linked with different references or probability. %This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children : 2 Display criteria : All >=90% stars galaxies radio IR <2 arcsec #ref>50

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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 (42) :

An access of full data is available using the icon Vizier near the identifier of the catalogue

CCDM J13100+1732AB	CSV 102722	IRAS F13075+1747	TD1 16671
* 42 Com	GC 17833	LSPM J1309+1731	UBV 11895
* alf Com	GCRV 7832	LTT 13802	USNO-B1.0 1075-00257793
** STF 1728AB	GEN# +1.00114378J	2MASS J13095936+1731456	uvby98 100114378
ADS 8804 AB	GJ 501.0	NAME Diadem	WDS J13100+1732AB
AG+17 1350	HD 114378J	NLTT 33105	WISE J130958.97+173146.5
AKARI-IRC-V1 J1309590+173147	HIC 64241	NSV 6116	YZ 17 4848
ASCC 868407	HIP 64241	PLX 3006.00	[ZEH2003] RX J1309.9+1731 1
BD+18 2697	IDS 13051+1803 AB	PLX 3006	AAVSO 1305+18
Ci 20 762	IDS 13051+1803	PPM 129630
CSI+18 2697 1	IRAS 13075+1747	SAO 100443

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References (21 between 2013 and 2018) (Total 182) 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)

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Collections of Measurements

velocities : 14    ROT : 1    PM : 6    Fe_H : 5    PLX : 3    MK : 2    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)

velocities (14)

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |  -17.7         0.9    |E (  26)|s , ,    ,           |          |       |  |1953GCRV..C......0W|
 

rot (1)

 |  Vsini  [  err   ] (mes)|Q|     reference     |
 -------------------------------------------------
 |  21.47  [        ] (   )| |2010A&A...520A..79M|
 

pm (6)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 | -433.13 [    0.70 ]| +141.24 [    0.51 ]|ICRS|2007A&A...474..653V|
 

fe_h (5)

 |Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 -----------------------------------------------------------
 | 6402 4.26  |-0.19   |SUN      |     |2016A&A...587A...2B|
 

plx (3)

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
 |  54.6     :   5.0        |1995GCTP..C......0V|
 

mk (2)

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
m|  /   |F5.5 V                              |2003AJ....126.2048G|
 

v* (1)

 |     vartyp     |    Vmax     p     Vmin    |   period   | epoch (JD)   |D/rt %|     reference     |
 -----------------------------------------------------------------------------------------------------
 |                |   4.29    : V    4.35    :|            |              |      |1981NVS...C......0K|
 

Observing logs

herschel : 2   

   

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)

herschel (2)

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External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : alf com

Link by name to the catalogue in VizieR :

CCDM J13100+1732AB	AG+17 1350	AKARI-IRC-V1 J1309590+173147	BD+18 2697	GJ 501.0
HD 114378J	HIC 64241	HIP 64241	IRAS 13075+1747	IRAS F13075+1747
LSPM J1309+1731	2MASS J13095936+1731456	NLTT 33105	NSV 6116	PLX 3006
PPM 129630	SAO 100443	TD1 16671	USNO-B1.0 1075-00257793	uvby98 100114378
WDS J13100+1732AB	WISE J130958.97+173146.5

Search by coordinates in Vizier (radius: 10 arcsec)

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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 .

display existing annotations (1)

add an annotation to this object

report an error concerning the data of this object

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