HR 2998

C.D.S. - SIMBAD4 rel 1.7 - 2019.02.23CET07:03:59

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


Basic data :
HD 62644 -- High proper-motion 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,CPC,...), PM* (Ref,LHS,...), IR (AKARI,IRAS,...), UV (TD1)
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) :
07 42 57.0929163265 -45 10 23.216409952 (Optical) [ 0.2498 0.2901 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
FK5 coord. (ep=J2000 eq=2000) :
07 42 57.0929163265 -45 10 23.216409952 [ 0.2901 0.2498 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
FK4 coord. (ep=B1950 eq=1950) :
07 41 24.2364632932 -45 02 43.277608400 [ 28.5516 26.9013 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) :
258.5760268804442 -10.5773386827102 [ 0.2901 0.2498 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 :
-77.158 -553.943 [0.538 0.571 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) 23.92 [1.66] / z(spectroscopic) 0.000080 [0.000006] / cz 23.92 [1.66]
   (Opt) B 2018yCat.1345....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):
44.4971 [0.2905] 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:
G8IV-V C 2006AJ....132..161G
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 (6) :
B 5.84 [~] E ~
V 5.04 [~] E ~
G 4.7966 [0.0023] C 2018yCat.1345....0G
J 3.68 [0.31] D 2003yCat.2246....0C
H 3.16 [0.23] D 2003yCat.2246....0C
K 3.12 [0.28] D 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.
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!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (34) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

LHS 1939 GJ 284 2MASS J07425710-4510227 TYC 8134-800-1
AKARI-IRC-V1 J0742570-451026 HD 62644 NLTT 18354 UBV 7432
CD-44 3675 HIC 37606 PLX 1831 UBV M 13584
Ci 20 436 HIP 37606 PLX 1831.00 uvby98 100062644
CPC 0 4777 HR 2998 PM 07414-4503 WEB 7436
CPD-44 1829 IRAS 07414-4503 PPM 312086 WISEA J074257.00-451029.2
GC 10402 LFT 545 SAO 218923 Gaia DR2 5531762678610961664
GCRV 5148 LPM 270 SKY# 14249
GEN# +1.00062644 LTT 2929 TD1 10901

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References (11 between 2014 and 2019) (Total 102)
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


distance : 1    velocities : 8    ROT : 1    PM : 7    Fe_H : 16    PLX : 4    MK : 7   

   

Warning : measurements from IRAS, IRC, SAO, CL.g (ACO), GJ have been removed
(they are still available using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links" to get the full data)

distance (1)

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |   22.4734  pc  |  -0.1467     +0.1467  |paral   |2018yCat.1345....0G|
 

velocities (8)

 |typ|    Value    R   m.e.   |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 -------------------------------------------------------------------------------------------------------
 |v  |   23.92        1.66    |B (  11)|s , ,O   ,           |          |       |  |2018yCat.1345....0G|
 

rot (1)

 |  Vsini  [  err   ] (mes)|Q|     reference     |
 -------------------------------------------------
 |   4.3   [  0.2   ] (   )| |2012A&A...542A.116A|
 

pm (7)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |  -77.158[    0.538]| -553.943[    0.571]|ICRS|2018yCat.1345....0G|
 

fe_h (16)

 |Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 -----------------------------------------------------------
 | 5343 3.74  |        |         |     |2003AJ....125.1598L|
 

plx (4)

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
m|  41.43    :   0.81       |1997A&A...323L..49P|
 

mk (7)

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
m|  /   |G8 IV-V                             |2006AJ....132..161G|
 

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : HR 2998

Link by name to the catalogue in VizieR :

LHS 1939 AKARI-IRC-V1 J0742570-451026 CD-44 3675 CPD-44 1829 GJ 284
HD 62644 HIC 37606 HIP 37606 HR 2998 IRAS 07414-4503
2MASS J07425710-4510227 NLTT 18354 PLX 1831 PPM 312086 SAO 218923
TD1 10901 TYC 8134-800-1 uvby98 100062644 WISEA J074257.00-451029.2 Gaia DR2 5531762678610961664

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2019.02.23-07:03:59

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