GJ 750

Query : GJ 750 C.D.S. - SIMBAD4 rel 1.225 - 2015.07.29CEST13:32:36

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


Basic data :
GJ 750 -- 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:
* (CD,CF,CPD,CSI,GCRV,GEN#​,GJ,HD,HIC,HIP​,PLX,PPM,Smethells,TYC​,UBV,UCAC2,UCAC3,USNO,[RHG95]), ** (CCDM,**,IDS,WDS), IR (AKARI,DENIS,IRAS,2MASS), PM* (Ci,LTT,NLTT), *iC (Cl*)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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) :
19 16 42.915 -45 53 21.67 ( Optical ) [ 42 24 0 ] B 2003yCat.1289....0Z
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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) :
19 16 42.915 -45 53 21.67 [ 42 24 0 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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) :
19 13 02.78 -45 58 22.5 [ 266 180 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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) :
351.8054 -23.3022 [ 42 24 0 ]
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 :
202.5 -417.6 [5.3 3.5 90] B 2003yCat.1289....0Z
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) -36.80 [3.7] / z(~) -0.000123 [0.000012] / cz -36.80 [3.70]   (~) C 2007AN....328..889K
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:
62.12 [1.97] A 2007A&A...474..653V
Spectral type is made of 3 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
  • bibcode : bibcode of the spectral type reference
Spectral type:
M0Vk: C 2006AJ....132..161G
Syntax of fluxes (or magnitudes) is : "filter-name flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, J, H, K, u, g, r, i, z
  • 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 (8) :
U 12.044 [~] C 2010MNRAS.403.1949K
B 10.817 [~] C 2010MNRAS.403.1949K
V 9.356 [~] C 2010MNRAS.403.1949K
R 8.432 [~] C 2010MNRAS.403.1949K
I 7.478 [~] C 2010MNRAS.403.1949K
J 6.450 [0.023] C 2003yCat.2246....0C
H 5.774 [0.027] C 2003yCat.2246....0C
K 5.571 [0.021] C 2003yCat.2246....0C
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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.
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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!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (37) :

CCDM J19167-4553AB CSI-46 9672 42 HIP 94739 UBV 16286
** RST 4036 CSI-46 9672 43 IDS 19094-4603 AB UCAC2 12338967
AKARI-IRC-V1 J1916430-455323 DENIS J191642.9-455321 IRAS 19130-4558 UCAC3 89-393762
CD-46 12902 GCRV 69182 LTT 7629 USNO-B1.0 0441-00739943
CD-46 12902A GEN# +1.00179930J 2MASS J19164290-4553213 WDS J19167-4553AB
CF 18552 GJ 750 NLTT 47589 [RHG95] 3034
Ci 20 1141 GJ 750 A PLX 4482 [RHG95] 3035
Cl* Melotte 25 EGG 55 GJ 750 B PPM 324943
CPD-46 9672 HD 179930 Smethells 34
CSI-46 9672 41 HIC 94739 TYC 8375-1985-1

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References (32 between 1850 and 2015)
Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

from: to:

                                  Sort reference summaries by : (not exhaustive, explanation here)

                                 

2013A&A...551L...8P    
Astron. Astrophys., 551, L8-8 (2013)
Chromospheric activity as age indicator. An L-shaped chromospheric-activity versus age diagram.
PACE G.

Comments & notes:
flags: (abstract)
files: <Available at CDS: cacomp.dat sindices.dat>

2013ApJ...768...25G    
Astrophys. J., 768, 25 (2013)
The collisional evolution of debris disks.
GASPAR A., RIEKE G.H. and BALOG Z.

Comments & notes:
flags: (abstract)
files: <Available at CDS: table2.dat refs.dat>

2012A&A...546A..69M    
Astron. Astrophys., 546A, 69-69 (2012)
Dynamical masses of a selected sample of orbital binaries.
MALKOV O.Yu., TAMAZIAN V.S., DOCOBO J.A. and CHULKOV D.A.

Comments & notes:
flags: (abstract)
files: <Available at CDS: table1.dat table2.dat>

2012AJ....143..135V    
Astron. J., 143, 135 (2012)
Age determination for 346 nearby stars in the Herschel DEBRIS survey.
VICAN L.

Comments & notes:
notes: Near the end of table2, a typo for star HIP 562452 turns out to be \object{HIP 56452}.
flags: (abstract)
files: <Available at CDS: table1.dat table2.dat table3.dat>

2011MNRAS.411..435B    
Mon. Not. R. Astron. Soc., 411, 435-452 (2011)
Bayesian inference of stellar parameters and interstellar extinction using parallaxes and multiband photometry.
BAILER-JONES C.A.L.

Comments & notes:
flags: (abstract)
files: <Available at CDS: h2mqcat.dat>

2010MNRAS.403.1089P    
Mon. Not. R. Astron. Soc., 403, 1089-1101 (2010)
Target selection for the SUNS and DEBRIS surveys for debris discs in the solar neighbourhood.
PHILLIPS N.M., GREAVES J.S., DENT W.R.F., MATTHEWS B.C., HOLLAND W.S., WYATT M.C. and SIBTHORPE B.

Comments & notes:
flags: (abstract)
files: <Available at CDS: table3.dat table4.dat table5.dat table6.dat table7.dat table8.dat table2.dat>

2010MNRAS.403.1949K    
Mon. Not. R. Astron. Soc., 403, 1949-1968 (2010)
UBV(RI)_C_JHK observations of Hipparcos-selected nearby stars.
KOEN C., KILKENNY D., VAN WYK F. and MARANG F.

Comments & notes:
flags: (abstract)
files: <Available at CDS: table1.dat table2.dat table3.dat table4.dat>

2010SerAJ.180...71C    
Serbian Astron. Journal, 180, 71-80 (2010)
On the component masses of visual binaries.
CVETKOVIC Z. and NINKOVIC S.

Comments & notes:
files: <Available at CDS: table1.dat table2.dat table3.dat>

2008A&A...478..507M    
Astron. Astrophys., 478, 507-512 (2008)
The effect of activity on stellar temperatures and radii.
MORALES J.C., RIBAS I. and JORDI C.

Comments & notes:
flags: (abstract)
files: <Available at CDS: table1.dat table2.dat>

2006AJ....132..161G    
Astron. J., 132, 161-170 (2006)
Contributions to the nearby stars (NStars) project: spectroscopy of stars earlier than M0 within 40 pc--The southern sample.
GRAY R.O., CORBALLY C.J., GARRISON R.F., McFADDEN M.T., BUBAR E.J., McGAHEE C.E., O'DONOGHUE A.A. and KNOX E.R.

Comments & notes:
flags: (abstract)
files: <Available at CDS: table2.dat notes.dat table5.dat>

2003ApJ...582.1011S    
Astrophys. J., 582, 1011-1031 (2003)
Improved astrometry and photometry for the Luyten catalog. II. Faint stars and the revised catalog.
SALIM S. and GOULD A.

Comments & notes:
CDS status: mostly processed, unsolved problems
flags: (abstract)
files: <Available at CDS: table2.dat>

2001A&A...367..521P    
Astron. Astrophys., 367, 521-524 (2001)
Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics.
PASINETTI FRACASSINI L.E., PASTORI L., COVINO S. and POZZI A.

Comments & notes:
flags: (abstract)
files: <CDS Catalogue: II/224>

2001BaltA..10..481B    
Baltic Astronomy, 10, 481-587 (2001)
Kinematics of Hipparcos visual binaries. I. Stars with orbital solutions.
BARTKEVICIUS A. and GUDAS A.

Comments & notes:
flags: (abstract)
files: <Available at CDS: tables 1 to 13, references>

1999A&A...341..121S    
Astron. Astrophys., 341, 121 (1999)
Visual binary orbits and masses post Hipparcos.
SOEDERHJELM S.

Comments & notes:
flags: (abstract)
files: <Available at CDS: notes.dat table1.dat table3.dat table4.dat table6.dat>

1998A&A...330..585M    
Astron. Astrophys., 330, 585-599 (1998)
Mass determination of astrometric binaries with Hipparcos. II. Selection of candidates and results.
MARTIN C. and MIGNARD F.

Comments & notes:
flags: (abstract)

1996AJ....112.2799H    
Astron. J., 112, 2799-2827 (1996)
The Palomar/MSU nearby star spectroscopic survey. II. The southern M dwarfs and investigations of magnetic activity.
HAWLEY S.L., GIZIS J.E. and REID I.N.

Comments & notes:
erratum: Erratum 1997, AJ vol. 113, P. 1458-1469
files: <CDS Catalogue: III/198>
dic: Tables : <[RHG95] NNNN> N=282 added.

1995A&AS..114..269D    
Astron. Astrophys., Suppl. Ser., 114, 269-280 (1995)
Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue.
DUFLOT M., FIGON P. and MEYSSONNIER N.

Comments & notes:
CDS status: could be processed
flags: (abstract)
files: <CDS Catalogue: III/190>
dic: <WEB NNNNN> (Nos 1-20796).

1993AJ....106.1885E    
Astron. J., 106, 1885-1905 (1993)
The low mass Hyads and the evaporation of clusters.
EGGEN O.J.

1990PASP..102..166E    
Publ. Astron. Soc. Pac., 102, 166-178 (1990)
K- and M-type dwarf stars within 25 parsecs of the Sun. I. The age-chromospheric activity relation from H-alpha equivalent widths.
EGGEN O.J.

Comments & notes:
notes: LP 760-13 and 670-13 are misprints for LP 760-3. T.7: objects are not in SIMBAD.
dic: Table 1: <Cl* Melotte 25 EGG NNA> N=70 (Nos 1-62).

1989SAAOC..13...29L    
South African Astron. Obs. Circ., 13, 29-37 (1989)
UBV (RI)c photometry of faint nearby stars.
LAING J.D.

1985ApJS...59..197B    
Astrophys. J., Suppl. Ser., 59, 197-227 (1985)
G.P. Kuiper's spectral classifications of proper-motion stars.
BIDELMAN W.P.

1984AJ.....89..839E    
Astron. J., 89, 839-850 (1984)
A systematic search for members of the Hyades supercluster. II. The visual binaries.
EGGEN O.J.

1983ApJS...53..643J    
Astrophys. J., Suppl. Ser., 53, 643-711 (1983)
Predicted infrared brightness of stars within 25 parsecs of the Sun.
JOHNSON H.M. and WRIGHT C.D.

1982MNRAS.201...51R    
Mon. Not. R. Astron. Soc., 201, 51-71 (1982)
New light on faint stars. I. The luminosity function in the solar neighbourhood.
REID N.

1980AJ.....85..738W    
Astron. J., 85, 738-743 (1980)
Photometry of southern hemisphere red dwarf stars.
WEISTROP D.

1978PASP...90..587H    
Publ. Astron. Soc. Pac., 90, 587-593 (1978)
Measures of southern visual double stars.
HOLDEN F.

1977PASP...89..582H    
Publ. Astron. Soc. Pac., 89, 582-587 (1977)
Visual double stars measured at Las Campanas Observatory, Chile.
HOLDEN F.

1977PASP...89..588H    
Publ. Astron. Soc. Pac., 89, 588-595 (1977)
Measures of southern visual double stars.
HOLDEN F.

1974PhDT........10S    
Thesis, 10 (1974)
The space density and kinematics of dwarf M stars.
SMETHELLS W.G.

Comments & notes:
dic: <Smethells NNN> (Nos 1-186).

1972AJ.....77..878W    
Astron. J., 77, 878-887 (1972)
Micrometer measures of 401 double stars.
WORLEY C.E.

1970VA.....12..367E    
Vistas in Astronomy, 12, 367-414 (1970)
Stellar kinematics and evolution.
EGGEN O.J.

1955AJ.....60..401E    
Astron. J., 60, 401-407 (1955)
The color-luminosity array for stars near the Sun.
EGGEN O.J.


Measurements (13 types) :


distance : 1    GJ : 1    herschel : 2    IRAS : 1    JP11 : 1    MK : 4    oRV : 2    PLX : 5    PM : 2    pos : 1    posa : 1    UBV : 3   
velocities : 3   

   


External archives :

Catalogue information from VizieR :

Generic search by coordinates (radius: 10 arcsec)

CCDM J19167-4553AB CD-46 12902 CPD-46 9672 DENIS J191642.9-455321 GJ 750
GJ 750 A GJ 750 B HD 179930 HIC 94739 HIP 94739
IRAS 19130-4558 2MASS J19164290-4553213 NLTT 47589 PPM 324943 TYC 8375-1985-1
UCAC2 12338967 USNO-B1.0 0441-00739943 WDS J19167-4553AB

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2015.07.29-13:32:36

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