BD+55 1823

Query : BD+55 1823

Basic data :
BD+55 1823 -- Spectroscopic Binary
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: 		* (2014ApJ,BD,...), PM* (2013MNRAS,G,...), X (2009ApJ,2E,...), UV (2EUVE,EUVE,...), SB* (2010ApJ), ** (**,WDS), Er* (2017ARep,[GKL99]), V* (CSV,V*), 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) : 		16 17 05.3518858129 +55 16 08.771396846 (Optical) [ 0.4044 0.4169 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) : 		16 15 57.9880028878 +55 23 47.450541964 [ 0.4044 0.4169 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) : 		084.9026709409739 +43.7086546612881 [ 0.4044 0.4169 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 : 		87.970 -430.963 [0.601 0.542 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) -28.25 [0.92] / z(spectroscopic) -0.000094 [0.000003] / cz -28.25 [0.92]
   B 2010ApJ...716.1522S
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): 		49.6303 [0.4245] 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: 		M1.5Ve C 1974ApJS...28....1J
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 (12) :
U 12.00 [~] C 2002yCat.2237....0D
B 10.92 [~] C 2002yCat.2237....0D
V 9.46 [~] C 2002yCat.2237....0D
R 9.552 [0.02] D 2012yCat.1322....0Z
G 9.078422 [0.002872] C 2020yCat.1350....0G
I 8.55 [~] D 2008AJ....136..259W
J 6.600 [0.023] C 2003yCat.2246....0C
H 5.992 [0.036] C 2003yCat.2246....0C
K 5.77 [~] C 2002yCat.2237....0D
g 10.793 [0.05] D 2012yCat.1322....0Z
r 9.406 [0.02] D 2012yCat.1322....0Z
i 8.443 [0.05] D 2012yCat.1322....0Z
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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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

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (54) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

BD+55 1823 G 202-36 NLTT 42459 TYC 3880-2179-1
** BLA 3 GJ 9552 PLX 3705 UCAC4 727-050918
ASCC 196894 GJ 616.2 PLX 3705.00 USNO-B1.0 1452-00248004
BPS BS 16084-0105 GSC 03880-02179 PM J16170+5516 V* CR Dra
CSV 102794 GUVV J161705.4+551606.2 RBS 1572 WDS J16171+5516AB
DO 35215 HIC 79796 2RE J1617+551 WEB 13508
2E 3641 HIP 79796 2RE J161702+551602 WISEA J161705.47+551604.3
2E 1615.9+5523 JP11 201 RE J1617+551 [GKL99] 321
1ES 1615+55.3 LFT 1261 RE J161701+551606 [RHG95] 2563
2EUVE J1617+55.2 LHS 5315 RX J1617.0+5516 [ZEH2003] RX J1617.0+5516 1
EUVE J1617+55.2 LSPM J1617+5516 RX J1617.1+5516 Gaia DR3 1429437378934511616
GCRV 9386 LTT 14860 1RXS J161705.1+551615 Gaia DR2 1429437378934511616
GEN# +0.05501823 2MASS J16170537+5516094 StKM 2-1232
G 225-55 MCC 161 TIC 207436278

References (200 between 1850 and 2024) (Total 200)
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* : 2    distance : 3    Fe_H : 5    PLX : 5    PM : 9    MK : 12   

   

Observing logs


IUE : 6   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : BD+55 1823

Link by name to the catalogue in VizieR :

BD+55 1823 DO 35215 2E 3641 EUVE J1617+55.2 G 225-55
G 202-36 GJ 9552 GJ 616.2 GSC 03880-02179 HIC 79796
HIP 79796 LHS 5315 LSPM J1617+5516 2MASS J16170537+5516094 NLTT 42459
PLX 3705 2RE J1617+551 2RE J161702+551602 1RXS J161705.1+551615 TYC 3880-2179-1
UCAC4 727-050918 USNO-B1.0 1452-00248004 V* CR Dra WDS J16171+5516AB WISEA J161705.47+551604.3
[GKL99] 321 Gaia DR3 1429437378934511616 Gaia DR2 1429437378934511616

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