V* BI Cru

Query : V* BI Cru

Basic data :
V* BI Cru -- Symbiotic 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:
* (ALS,CSI,...), V* (ASAS,CSV,...), Em* (Hen,WRAY,...), C*? (2022A&A), MIR (AKARI,WISE), Sy* (1976ApJS), PN (PK), CV* (2012A&A), LP* (2022yCat), NIR (2MASS), IR (IRAS)
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 23 25.9932684936 -62 38 15.988288740 (Optical) [ 0.0153 0.0161 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) :
12 20 39.9698945562 -62 21 38.110305311 [ 0.0153 0.0161 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) :
299.7204044604818 +00.0592187664024 [ 0.0153 0.0161 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 :
-7.978 0.574 [0.021 0.021 90] A 2020yCat.1350....0G
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):
0.3172 [0.0212] 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:
M0/1e D 1988A&A...189...97S
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 (11) :
U 12.06 [~] D 2003AJ....125.2531R
B 12.18 [0.28] D 2012yCat.1322....0Z
V 11.00 [~] C 2002yCat.2237....0D
R 10.71 [0.02] D 2012yCat.1322....0Z
G 10.457048 [0.011266] C 2020yCat.1350....0G
J 7.330 [0.026] C 2003yCat.2246....0C
H 6.187 [0.024] C 2003yCat.2246....0C
K 5.064 [0.023] C 2003yCat.2246....0C
g 11.64 [0.26] D 2012yCat.1322....0Z
r 10.31 [0.11] D 2012yCat.1322....0Z
i 9.64 [0.18] 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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The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (28) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

SV* BV 1417 GSC 08979-01266 SV* SON 4958 WISE J122325.89-623813.8
AKARI-IRC-V1 J1223260-623815 Hen 3-782 TIC 311758230 WRAY 15-967
ALS 2662 IRAS 12206-6221 TYC 8979-1266-1 [GM76] 12
ASAS J122326-6238.3 LLNS 8105 UCAC1 4287027 AAVSO 1217-62
CSI-62-12207 LS 2662 UCAC2 4125208 Gaia DR3 6054612927609974656
CSV 1855 2MASS J12232601-6238159 UCAC4 137-082534 Gaia DR1 6054612923274373248
GEN# +6.10002662 PK 299+00 1 V* BI Cru Gaia DR2 6054612927609974656

References (135 between 1850 and 2024) (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


V* : 2    distance : 1    PLX : 3    PM : 2    MK : 4   

   

Observing logs


ISO : 3    IUE : 7   

   


External archives :

Data at NED - NASA/IPAC Extragalactic Database : V* BI Cru

Link by name to the catalogue in VizieR :

AKARI-IRC-V1 J1223260-623815 ALS 2662 GSC 08979-01266 IRAS 12206-6221 LS 2662
2MASS J12232601-6238159 TYC 8979-1266-1 UCAC1 4287027 UCAC2 4125208 UCAC4 137-082534
V* BI Cru WISE J122325.89-623813.8 Gaia DR3 6054612927609974656 Gaia DR1 6054612923274373248 Gaia DR2 6054612927609974656

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