LHS 3577

Query : LHS 3577

Basic data :
BD+44 3567 -- 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: 		* (AC,ASCC,...), PM* (2013MNRAS,LHS,...), V* (2012A&A,NSV), ** (CCDM), NIR (2MASS), MIR (WISEA)
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) : 		20 45 04.0992448490 +44 29 56.645139366 (Optical) [ 0.0140 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) : 		20 43 17.6434343440 +44 18 45.125426656 [ 0.0140 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) : 		084.0680728966058 +01.0084722613343 [ 0.0140 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 : 		434.028 271.022 [0.018 0.020 90] A 2020yCat.1350....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) -24.72 [0.0012] / z(spectroscopic) -0.000082 [0.000000] / cz -24.72 [0.00]
   (Opt) A 2018MNRAS.475.1960F
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): 		82.8903 [0.0167] 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: 		M2V B 1991ApJS...77..417K
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) :
B 12.03 [0.15] D 2000A&A...355L..27H
V 10.704 [0.01] D 2012yCat.1322....0Z
R 10.299 [0.01] D 2012yCat.1322....0Z
G 9.828687 [0.002782] C 2020yCat.1350....0G
I 8.57 [~] D 2004AJ....128..463R
J 7.329 [0.018] C 2003yCat.2246....0C
H 6.769 [0.023] C 2003yCat.2246....0C
K 6.533 [0.016] C 2003yCat.2246....0C
g 11.610 [0.01] D 2012yCat.1322....0Z
r 10.137 [0.01] D 2012yCat.1322....0Z
i 9.127 [0.01] D 2012yCat.1322....0Z
SIMBAD within arcmin
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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!). sed-help-icon

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 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 (38) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

LHS 3577 GJ 806 NSV 13280 USNO 897
AC +44 871 HIC 102401 PLX 4951 WEB 18540
ASCC 436187 HIP 102401 PLX 4951.00 WISEA J204504.52+442959.4
BD+44 3567 JP11 5177 PM J20450+4429 [RHG95] 3247
CCDM J20451+4430A Karmn J20450+444 TIC 239332587 Gaia DR3 2070115588901082368
Ci 20 1228 LFT 1568 TOI-4481 Gaia DR1 2070115584598613632
CSI+44-20433 LSPM J2045+4429 TYC 3178-633-1 Gaia DR2 2070115588901082368
GCRV 13011 LTT 16068 UCAC2 46961244 p. Pulk 40
GEN# +6.10010806 2MASS J20450403+4429562 UCAC4 673-089122
G 209-41 NLTT 49843 USNO-B1.0 1344-00401190

References (160 between 1850 and 2024) (Total 160)
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 : 9    V* : 1    diameter : 1    distance : 2    ROT : 1    Fe_H : 17    PLX : 6    PM : 9    MK : 9   

   

External archives :

Link by name to the catalogue in VizieR :

LHS 3577 BD+44 3567 CCDM J20451+4430A G 209-41 GJ 806
HIC 102401 HIP 102401 LSPM J2045+4429 2MASS J20450403+4429562 NLTT 49843
NSV 13280 PLX 4951 TYC 3178-633-1 UCAC2 46961244 UCAC4 673-089122
USNO-B1.0 1344-00401190 WISEA J204504.52+442959.4 Gaia DR3 2070115588901082368 Gaia DR1 2070115584598613632 Gaia DR2 2070115588901082368

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