HD 221970

Query : HD 221970
C.D.S. - SIMBAD4 rel 1.7 - 2018.12.11CET09:11:09

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


Basic data :
HD 221970 -- 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:
* (HD,AG,...), IR (IRAS,2MASS), 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) :
23 36 30.5129551295 +32 54 15.163351495 (Optical) [ 0.0360 0.0157 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) :
23 34 01.4061926747 +32 37 38.678363146 [ 2.9002 1.8501 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) :
105.2548695612016 -27.3824989055689 [ 0.0360 0.0157 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 :
-7.547 4.123 [0.058 0.037 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) 3.60 [0.9] / z(~) 0.000012 [0.000003] / cz 3.60 [0.90]
   A 2006AstL...32..759G
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):
13.0323 [0.0407] 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:
F6V D 1990ApJ...354..310B
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 6.792 [0.015] D 2000A&A...355L..27H
V 6.335 [0.010] D 2000A&A...355L..27H
G 6.2115 [0.0002] C 2018yCat.1345....0G
J 5.390 [0.019] C 2003yCat.2246....0C
H 5.200 [0.026] C 2003yCat.2246....0C
K 5.173 [0.015] C 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 (23) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 221970 GEN# +1.00221970 2MASS J23363051+3254151 UBV M 27120
AG+32 2339 GSC 02770-01573 PPM 88962 uvby98 100221970
AGKR 21128 HIC 116505 SAO 73368 WEB 20575
BD+32 4671 HIP 116505 SKY# 44658 Gaia DR2 2872375210175576064
GC 32821 HR 8955 TD1 29961 Gaia DR1 2872375205878060800
GCRV 14801 IRAS 23340+3237 TYC 2770-1573-1

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References (37 between 1850 and 2019) (Total 37)
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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                 or select by : (not exhaustive, explanation here)


Collections of Measurements


distance : 1    velocities : 5    PM : 6    Fe_H : 5    PLX : 4   

   

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     |
 -----------------------------------------------------------------------
 |   76.7324  pc  |  -0.2396     +0.2396  |paral   |2018yCat.1345....0G|
 

velocities (5)

 |typ|    Value    R   m.e.   |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 -------------------------------------------------------------------------------------------------------
 |v  |   -0.9                 |  (   4)|s , ,    ,           |          |       |  |1995A&AS..114..269D|
 |v  |   -0.9         2.0     |E (   4)|s , ,    ,           |          |       |  |1953GCRV..C......0W|
 |V  |    3.60        0.90    |A (    )|s , ,O   ,           |          |       |  |2006AstL...32..759G|
 |v  |    6.7                 |C (   1)|  , ,    ,           |          |       |  |2004A&A...418..989N|
 |v  |   -1.9                 |  (   4)|  , ,    ,           |          |       |  |1933PDAO....6..149H|
 

pm (6)

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |   -7.547[    0.058]|   +4.123[    0.037]|ICRS|2018yCat.1345....0G|
 |   -5.15 [    0.46 ]|   +7.02 [    0.28 ]|ICRS|2007A&A...474..653V|
 |   -5.58 [    0.70 ]|   +7.12 [    0.49 ]|ICRS|1997A&A...323L..49P|
 |   -6    [    3    ]|   +6    [    4    ]|FK4 |1978IAUCo..48..505C|
 |  +13    [    9    ]|  +13    [    9    ]|FK4 |1971IAUCo...7..153L|
 |  -11    [         ]|   +1    [         ]|FK4 |1933GCCat.C......0B|
 

fe_h (5)

 |Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 -----------------------------------------------------------
 | 6581       |        |SUN      |     |2006A&A...450..735M|
 | 6360       |        |SUN      |     |2011A&A...530A.138C|
 | 6232 3.84  |-0.17   |SUN      |     |1990ApJ...354..310B|
 | 6232 3.84  |-0.17   |SUN      |F    |1990ApJ...354..310B|
 | 6232 3.84  |-0.17   |SUN      |F565 |1990ApJ...354..310B|
 

plx (4)

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
 |  13.0323  :   0.0407     |2018yCat.1345....0G|
 |  12.99    :   0.79       |1997A&A...323L..49P|
 |  13.88    :   0.46       |2007A&A...474..653V|
 |  13.030   :   0.400      |2016A&A...595A...2G|
 

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : HD 221970

Link by name to the catalogue in VizieR :

HD 221970 AG+32 2339 BD+32 4671 GSC 02770-01573 HIC 116505
HIP 116505 HR 8955 IRAS 23340+3237 2MASS J23363051+3254151 PPM 88962
SAO 73368 TD1 29961 TYC 2770-1573-1 uvby98 100221970 Gaia DR2 2872375210175576064
Gaia DR1 2872375205878060800

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2018.12.11-09:11:09

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