eta Cas

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

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

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

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

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

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

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

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

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

VizieR photometry viewer
within radius arcsec

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.

2019.02.20-21:49:14

• Contact

*`V eta Cas`**	`2E 0046.1+5733`	`LHS 123`	`SBC7 31`
*` eta Cas A`**	`GC 962`	`LSPM J0049+5748`	`SKY# 1265`
*` 24 Cas`**	`GCRV 447`	`LTT 10287`	`SPOCS 41`
*` eta Cas`**	`GEN# +1.00004614A`	`2MASS J00490622+5748545`	`TD1 443`
` STF 60A`**	`GJ 34 A`	`N30 163`	`TYC 3663-2669-1`
`ADS 671 A`	`HD 4614A`	`NAME Achird`	`UBV 650`
`AG+57 81`	`HD 4614`	`NLTT 2690`	`USNO-B1.0 1478-00036288`
`ASCC 159214`	`HIC 3821`	`8pc 167.99A`	`USNO 793`
`BD+57 150A`	`HIP 3821`	`PLX 155`	`uvby98 100004614`
`BD+57 150`	`HR 219`	`PM 00461+5733`	`WDS J00491+5749A`
`CCDM J00491+5749A`	`IDS 00430+5717`	`PPM 25718`	`WEB 675`
`Ci 20 56`	`IRAS 00461+5732`	`ROT 6014`	`Wolf 24`
`CSI+57 150 8`	`IRC +60019`	`ROT 3488`	`Zkh 15`
`CSI+57 150 1`	`JP11 419`	`1RXS J004904.0+574917`	`Gaia DR2 425040000951479424`
`2E 191`	`LFT 74`	`SAO 21732`

*`V eta Cas`**	`AG+57 81`	`BD+57 150`	`CCDM J00491+5749A`	`2E 191`
`GJ 34 A`	`HD 4614A`	`HD 4614`	`HIC 3821`	`HIP 3821`
`HR 219`	`IRAS 00461+5732`	`IRC +60019`	`LHS 123`	`LSPM J0049+5748`
`2MASS J00490622+5748545`	`NLTT 2690`	`PLX 155`	`PPM 25718`	`1RXS J004904.0+574917`
`SAO 21732`	`TD1 443`	`TYC 3663-2669-1`	`USNO-B1.0 1478-00036288`	`uvby98 100004614`
`WDS J00491+5749A`	`Gaia DR2 425040000951479424`