HR 1925

Query : HR 1925
C.D.S. - SIMBAD4 rel 1.7 - 2018.12.16CET20:04:29

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


Basic data :
HD 37394 -- Variable of BY Dra type
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:
* (Ref,AG,...), PM* (Ref,Ci,...), ** (**,CCDM,...), IR (IRAS,2MASS,...), V* (V*,NSV), X (RE,1RXS), Fl* ([GKL99]), BY* (Ref), Ro* (Ref), UV (2RE)
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) :
05 41 20.3357283721 +53 28 51.810629854 (Optical) [ 0.0437 0.0414 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
FK4 coord. (ep=B1950 eq=1950) :
05 37 16.7445546537 +53 27 47.690124216 [ 3.7503 3.6003 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] : 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) :
158.3844858950122 +11.9452865175064 [ 0.0437 0.0414 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 :
2.784 -523.602 [0.075 0.072 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) 1.10 [0.09] / z(~) 0.000004 [0.000000] / cz 1.10 [0.09]
   A 2002ApJS..141..503N
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):
81.4300 [0.0487] 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:
K1V E ~
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 (9) :
U 7.58 [~] C 2002yCat.2237....0D
B 7.07 [~] C 2002yCat.2237....0D
V 6.23 [~] C 2002yCat.2237....0D
R 5.54 [~] C 2002yCat.2237....0D
I 5.11 [~] C 2002yCat.2237....0D
G 5.9765 [0.0007] C 2018yCat.1345....0G
J 4.74 [~] C 2002yCat.2237....0D
H 4.30 [~] C 2002yCat.2237....0D
K 4.272 [0.018] C 2003yCat.2246....0C
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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.
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 2 : 136 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (50) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

V* V538 Aur GSC 03749-01334 NLTT 15439 TYC 3749-1334-1
** ENG 22A HD 37394 NSV 16618 UBV 5672
** BUP 82A HIC 26779 PLX 1289 UBV M 11289
AG+53 486 HIP 26779 PMC 90-93 4855 USNO-B1.0 1434-00163923
ASCC 246596 HR 1925 PPM 29972 uvby98 100037394
BD+53 934 IDS 05332+5326 A 2RE J0541+532 WDS J05413+5329A
CCDM J05413+5329A IRAS 05373+5327 2RE J054119+532931 WEB 5281
Ci 20 341 JP11 1201 RE J0541+532 WISEA J054120.37+532846.5
CSI+53 934 1 LFT 423 RE J054117+532855 YZ 53 2262
GC 7064 LHS 1774 1RXS J054122.0+532903 [GKL99] 145
GCRV 3500 LSPM J0541+5328 SAO 25319 Gaia DR2 263916708025623680
GEN# +1.00037394 LTT 11694 SKY# 9285
GJ 211 2MASS J05412033+5328523 SPOCS 276

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References (276 between 1850 and 2019) (Total 276)
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 : 1    velocities : 14    ROT : 2    PM : 10    Fe_H : 32    PLX : 3    MK : 4    V* : 1   

   

Observing logs


ISO : 3    IUE : 13   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : HR 1925

Link by name to the catalogue in VizieR :

V* V538 Aur AG+53 486 BD+53 934 CCDM J05413+5329A GJ 211
GSC 03749-01334 HD 37394 HIC 26779 HIP 26779 HR 1925
IRAS 05373+5327 LHS 1774 LSPM J0541+5328 2MASS J05412033+5328523 NLTT 15439
NSV 16618 PLX 1289 PPM 29972 2RE J0541+532 2RE J054119+532931
1RXS J054122.0+532903 SAO 25319 TYC 3749-1334-1 USNO-B1.0 1434-00163923 uvby98 100037394
WDS J05413+5329A WISEA J054120.37+532846.5 [GKL99] 145 Gaia DR2 263916708025623680

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2018.12.16-20:04:29

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