V* YZ CMi

Query : V* YZ CMi

Basic data :
V* YZ CMi -- Eruptive 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:
* (HIP,ASCC,...), PM* (2013MNRAS,G,...), X (2015A&A,1AXG,...), UV (2EUVE,EUVE,...), IR (IRAS,2MASS,...), ** (**,WDS), Er* (2017ARep,[GKL99]), V* (V*)
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) :
07 44 40.1723046464 +03 33 08.875227574 (Optical) [ 0.0302 0.0233 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) :
07 42 03.7934500178 +03 40 48.018635412 [ 0.0302 0.0233 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) :
215.8560396542022 +13.4573387890531 [ 0.0302 0.0233 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 :
-347.782 -445.702 [0.040 0.025 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) 26.66 [0.0033] / z(spectroscopic) 0.000089 [0.000000] / cz 26.66 [0.00]
   (Opt) A 2018MNRAS.475.1960F
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):
166.9769 [0.0343] 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:
M4.0Ve C 2015AJ....149..106D
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 (12) :
U 13.761 [~] C 2010MNRAS.403.1949K
B 12.831 [~] C 2010MNRAS.403.1949K
V 11.225 [~] C 2010MNRAS.403.1949K
R 9.958 [~] C 2010MNRAS.403.1949K
G 9.692206 [0.002900] C 2020yCat.1350....0G
I 8.263 [~] C 2010MNRAS.403.1949K
J 6.581 [0.024] C 2003yCat.2246....0C
H 6.005 [0.038] C 2003yCat.2246....0C
K 5.698 [0.017] C 2003yCat.2246....0C
g 11.761 [0.34] E 2012yCat.1322....0Z
r 10.490 [0.23] E 2012yCat.1322....0Z
i 8.925 [0.07] D 2012yCat.1322....0Z
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!).
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 136 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (57) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HIP 37766 GJ 285 8pc 168.59 UCAC4 468-034923
** LAF 36A GSC 00183-02190 PLX 1827 USNO-B1.0 0935-00153510
ASCC 1124230 1H 0743+037 PLX 1827.00 V* YZ CMi
1AXG J074442+0333 HIC 37766 PM 07421+0341 WDS J07447+0333A
CSI+03-07421 IRAS 07420+0340 PM J07446+0333 WEB 7464
2E 1871 JP11 5416 2RE J0744+033 WISEA J074439.92+033304.2
2E 0742.0+0340 JP11 5128 2RE J074440+033329 Zkh 111
1ES 0742+03.6 JP11 5185 RE J0744+033 [FS2003] 0439
2EUVE J0744+03.5 Karmn J07446+035 RE J074439+033301 [GKL99] 172
EUVE J0744+03.5 LFT 547 Ross 882 [RHG95] 1219
GCRV 5161 LHS 1943 1RXS J074439.7+033245 Gaia EDR3 3136952686035250688
GEN# +9.80050004 LSPM J0744+0333 StKM 2-468 Gaia DR2 3136952686035250688
GEN# +6.10010285 LTT 12064 TIC 266744225
G 50-4 2MASS J07444018+0333089 TYC 183-2190-1
G 112-46 NLTT 18373 UCAC2 33030334

References (829 between 1850 and 2022) (Total 829)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)


Collections of Measurements


velocities : 9    V* : 3    distance : 4    ROT : 3    Fe_H : 7    PLX : 5    PM : 8    MK : 12   

   

Observing logs


herschel : 2    IUE : 74    XMM : 1   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V* YZ CMi

Link by name to the catalogue in VizieR :

HIP 37766 2E 1871 EUVE J0744+03.5 G 50-4 G 112-46
GJ 285 GSC 00183-02190 HIC 37766 IRAS 07420+0340 LHS 1943
LSPM J0744+0333 2MASS J07444018+0333089 NLTT 18373 PLX 1827 2RE J0744+033
2RE J074440+033329 1RXS J074439.7+033245 TYC 183-2190-1 UCAC2 33030334 UCAC4 468-034923
USNO-B1.0 0935-00153510 V* YZ CMi WDS J07447+0333A WISEA J074439.92+033304.2 [GKL99] 172
Gaia EDR3 3136952686035250688 Gaia DR2 3136952686035250688

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Annotations :
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Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

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2022.07.07-16:19:35

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