GJ 644B

Query : GJ 644B
C.D.S. - SIMBAD4 rel 1.7 - 2018.11.16CET14:16:15

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


Basic data :
HD 152751 -- Spectroscopic binary
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,...), PM* (Ref,Ci,...), X (1E,2E,...), ** (**,CCDM,...), IR (DENIS,IRAS,...), UV (2EUVE,EUVE,...), SB* (Ref,SBC9), Fl* (Ref,[GKL99]), V* (V*), Rad (1C)
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) :
16 55 28.75758 -08 20 10.7876 (Optical) [ 58.66 31.02 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 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) :
16 52 48.42834 -08 14 43.1529 [ 335.44 185.99 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 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) :
011.04461554 +21.14114194 [ 58.66 31.02 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 :
-825.84 -873.53 [6.68 3.53 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) 14.89 [0.05] / z(~) 0.000050 [0.000000] / cz 14.89 [0.05]
   A 2004A&A...424..727P
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):
161.41 [5.64] 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:
M3.5Ve C 1974ApJS...28....1J
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (incl) : inclination (in units of 15° from 0 to 7)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin):
0.0033 0.0 76 (Opt) D 2001AJ....122.3466M
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 11.647 [~] C 2010MNRAS.403.1949K
B 10.593 [~] C 2010MNRAS.403.1949K
V 9.023 [~] C 2010MNRAS.403.1949K
R 7.937 [~] C 2010MNRAS.403.1949K
I 6.565 [~] C 2010MNRAS.403.1949K
G 7.9125 [0.0007] C 2018yCat.1345....0G
J 5.270 [0.037] C 2003yCat.2246....0C
H 4.775 [0.017] C 2003yCat.2246....0C
K 4.403 [0.036] C 2003yCat.2246....0C
g 10.240 [0.34] E 2012yCat.1322....0Z
r 9.112 [0.46] E 2012yCat.1322....0Z
i 7.582 [0.41] E 2012yCat.1322....0Z
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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 : 2 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (74) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

V* V1054 Oph GEN# +1.00152751J PM 16528-0814 UGP 420
** LDS 573AB GJ 644 PM J16554-0820 uvby98 100152751
** KUI 75 GJ 644 B PPM 200168 VVO 249
BD-08 4352 GJ 644 A 2RE J165530-081936 WARPS J1655.4-0820
1C 66.01 GSC 05642-01503 2RE J1655-081 WDS J16555-0820AB
CCDM J16555-0820AB HD 152751 RE J1655-081 WEB 13999
Ci 20 1013 HIC 82817 RE J165530-081943 WISEA J165528.20-082019.5
CSI-08 4352 1 HIP 82817 1RXS J165529.3-082008 Wolf 630
CSI-08 4352 4 IDS 16501-0809 AB SAO 141439 YZ 98 5811
CSI-08 4352 3 IRAS 16527-0815 SBC9 2684 Zkh 234
DENIS J165528.9-082007 JP11 2802 SBC9 2683 Zkh 233
1E 1652.7-0815 LFT 1310 SDSS J165528.46-082015.8 [FS2003] 0855
2E 3783 LHS 428 StKM 2-1281 [GKL99] 335
2E 1652.7-0815 LPM 623 TYC 5642-1503-1 [GKL99] 334
1ES 1652-08.2 LTT 6749 UBV 14330 [RHG95] 2662
2EUVE J1655-08.3 2MASS J16552880-0820103 UBV M 21799 [RHG95] 2661
EUVE J1655-08.3 MCC 782 UCAC2 28934778 Gaia DR2 4339465085630200960
GC 22805 NLTT 43800 UCAC3 164-149663
GCRV 9743 PLX 3845 UCAC4 409-067022

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References (463 between 1850 and 2019) (Total 463)
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


distance : 3    velocities : 8    ROT : 1    PM : 8    Fe_H : 2    PLX : 3    MK : 10    V* : 1   

   

Observing logs


ISO : 3    IUE : 17   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : GJ 644B

Link by name to the catalogue in VizieR :

V* V1054 Oph BD-08 4352 CCDM J16555-0820AB DENIS J165528.9-082007 2E 3783
EUVE J1655-08.3 GJ 644 GJ 644 B GJ 644 A GSC 05642-01503
HD 152751 HIC 82817 HIP 82817 IRAS 16527-0815 LHS 428
2MASS J16552880-0820103 NLTT 43800 PLX 3845 PPM 200168 2RE J165530-081936
2RE J1655-081 1RXS J165529.3-082008 SAO 141439 SDSS J165528.46-082015.8 TYC 5642-1503-1
UCAC2 28934778 UCAC3 164-149663 UCAC4 409-067022 uvby98 100152751 WDS J16555-0820AB
WISEA J165528.20-082019.5 [GKL99] 335 [GKL99] 334 Gaia DR2 4339465085630200960

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2018.11.16-14:16:15

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