V Cnc

C.D.S. - SIMBAD4 rel 1.7 - 2019.02.17CET03:52:00

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


Basic data :
V* V Cnc -- S 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,...), ** (ADS,CCDM,...), S* (Ref,CSS,...), V* (V*,ASAS,...), IR (IRAS,2MASS,...), C* (LEE), Mi* (Ref)
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 and convolved with error on propermotion),
    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) :
08 21 42.8235690788 +17 17 06.472488846 (Optical) [ 0.0857 0.0504 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 and convolved with error on propermotion),
    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) :
08 18 52.0068814325 +17 26 42.457793042 [ 8.6005 5.6003 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 and convolved with error on propermotion),
    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) :
206.6321370747968 +27.4924649178425 [ 0.0857 0.0504 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 :
-6.507 -2.764 [0.172 0.112 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) -4.60 [0.8] / z(~) -0.000015 [0.000003] / cz -4.60 [0.80]
   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):
0.2675 [0.1063] 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:
S0-6/6e B 1980ApJS...43..379K
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) :
B 13.25 [0.72] E 2000A&A...355L..27H
V 10.29 [0.07] D 2000A&A...355L..27H
R 8.69 [0.21] E 2012yCat.1322....0Z
G 9.4389 [0.0352] C 2018yCat.1345....0G
J 5.08 [0.30] D 2003yCat.2246....0C
H 4.00 [0.24] D 2003yCat.2246....0C
K 3.59 [0.34] D 2003yCat.2246....0C
u (AB) 15.131 [0.009] C 2009yCat.2294....0A
g (AB) 10.507 [0.001] C 2009yCat.2294....0A
r (AB) 11.355 [0.002] C 2009yCat.2294....0A
i (AB) 15.848 [0.029] C 2009yCat.2294....0A
z (AB) 6.308 [0.001] C 2009yCat.2294....0A
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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.
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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 (30) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

V* V Cnc GC 11390 LEE 198 WDS J08217+1717A
ADS 6763 A GCRV 5519 2MASS J08214282+1717064 WEB 7943
ASAS J082143+1717.1 GSC 01382-00592 S1* 305 WISE J082142.84+171706.4
BD+17 1825 HD 70276 SAO 97753 [C97] 38
CCDM J08217+1717A HIC 40977 SDSS J082142.85+171705.4 AAVSO 0816+17
CSI+17 1825 1 HIP 40977 SKY# 15866 Gaia DR2 656271591241910656
CSS 494 IDS 08160+1736 A TYC 1382-592-1
DO 13503 IRAS 08188+1726 UCAC4 537-046264

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References (135 between 1850 and 2019) (Total 135)
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 :

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Collections of Measurements


velocities : 6    PM : 4    PLX : 2    MK : 11    V* : 3   

   


External archives :

Data at NED - NASA/IPAC Extragalactic Database : V Cnc

Link by name to the catalogue in VizieR :

V* V Cnc BD+17 1825 CCDM J08217+1717A DO 13503 GSC 01382-00592
HD 70276 HIC 40977 HIP 40977 IRAS 08188+1726 2MASS J08214282+1717064
SAO 97753 SDSS J082142.85+171705.4 TYC 1382-592-1 UCAC4 537-046264 WDS J08217+1717A
WISE J082142.84+171706.4 Gaia DR2 656271591241910656

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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 .

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2019.02.17-03:52:00

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