Eta Serpentis

Query : Eta Serpentis
C.D.S. - SIMBAD4 rel 1.7 - 2018.10.22CEST00:27:33

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


Basic data :
* eta Ser -- 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:
* (*,BD,...), PM* (LHS,Ci,...), ** (BDS,CCDM,...), IR (IRAS,IRC,...), V* (NSV), 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) :
18 21 18.6017100780 -02 53 55.822170594 (Optical) [ 0.5963 0.5562 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) :
18 18 43.2733568685 -02 54 48.266941260 [ 8.0193 6.5273 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) :
026.8953673056468 +05.3620866110258 [ 0.5963 0.5562 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 :
-547.75 -701.42 [0.16 0.13 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) 9.83 [0.09] / z(spectroscopic) 0.000033 [0.000000] / cz 9.83 [0.09]
   (Opt) A 2015A&A...574A..50J
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):
56.0434 [0.4973] 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:
K0III-IV B 1989ApJS...71..245K
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 4.84 [~] C 2002yCat.2237....0D
B 4.19 [~] C 2002yCat.2237....0D
V 3.25 [~] C 2002yCat.2237....0D
R 2.55 [~] C 2002yCat.2237....0D
I 2.05 [~] C 2002yCat.2237....0D
G 2.8833 [0.0069] C 2018yCat.1345....0G
J 1.61 [~] C 2002yCat.2237....0D
H 1.09 [~] C 2002yCat.2237....0D
K 1.02 [~] C 2002yCat.2237....0D
SIMBAD with radius arcmin
Interactive AladinLite view
Back
sedIcon
VizieR photometry viewer    sed-help-icon
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 (46) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

LHS 3381 GJ 711 2MASS J18211862-0253554 TD1 22219
* 58 Ser HD 168723 N30 4076 TYC 5102-416-1
* eta Ser HIC 89962 NLTT 46332 UBV 15609
BD-02 4599 HIP 89962 NSV 10675 UBV M 22864
BDS 8498 A HR 6869 PLX 4215 USNO 879
CCDM J18214-0253A IDS 18161-0255 A PLX 4215.00 WDS J18213-0254A
Ci 20 1084 IRAS 18186-0255 PPM 201654 WEB 15365
CSI-02 4599 1 IRC +00347 RAFGL 2134 YZ 92 6140
FK5 688 JP11 2962 ROT 2590 [B10] 4638
GC 25046 LFT 1409 SAO 142241 Gaia DR2 4269932382606282112
GCRV 10825 LPM 673 SKY# 33484
GEN# +1.00168723 LTT 7300 SPOCS 793

Plots and Images

plot

radius arcmin


CDS portal

CDS Simplay
(requires flash)

Aladin applet

References (338 between 1850 and 2018) (Total 338)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)


Collections of Measurements


distance : 1    diameter : 1    velocities : 15    ROT : 4    PM : 8    Fe_H : 36    PLX : 4    MK : 27   

   

Observing logs


IUE : 3   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : Eta Serpentis

Link by name to the catalogue in VizieR :

LHS 3381 BD-02 4599 CCDM J18214-0253A FK5 688 GJ 711
HD 168723 HIC 89962 HIP 89962 HR 6869 IRAS 18186-0255
IRC +00347 2MASS J18211862-0253554 NLTT 46332 NSV 10675 PLX 4215
PPM 201654 RAFGL 2134 SAO 142241 TD1 22219 TYC 5102-416-1
WDS J18213-0254A Gaia DR2 4269932382606282112

Search by coordinates in Vizier (radius: 18 arcsec)


Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
The list of all annotations to SIMBAD objects can be found here .

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object




Store this result in Votable, in Ascii, or in the CDS portal

To bookmark this query, right click on this link: simbad:Eta Serpentis and select 'bookmark this link' or equivalent in the popup menu


2018.10.22-00:27:33

© Université de Strasbourg/CNRS

    • Contact