HD 87901

Query : HD 87901 C.D.S. - SIMBAD4 rel 1.225 - 2015.07.31CEST15:29:38

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


Basic data :
* alf Leo -- 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:
* (*,AG,ASCC,BD,CSI,FK5​,GC,GCRV,GEN#,GJ​,HD,HGAM,HIC,HIP​,HR,JP11,N30,PLX​,PMC,PMSC,PPM,ROT​,SAO,SKY#,SRS,TYC,UBV,USNO,uvby98,YPAC,[HFE83]), ** (**,ADS,CCDM,WDS), IR (IRAS,IRC,2MASS,RAFGL), PM* (LTT,LSPM,NLTT), V* (CSV,NSV), UV (TD1), X (2E)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
10 08 22.31099 +11 58 01.9516 ( Optical ) [ 3.08 1.85 90 ] A 2007A&A...474..653V
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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
FK5 coord. (ep=J2000 eq=2000) :
10 08 22.311 +11 58 01.95 [ 3.08 1.85 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
10 05 42.64 +12 12 44.6 [ 17.60 10.94 0 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
226.4273 +48.9342 [ 3.08 1.85 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 :
-248.73 5.59 [0.35 0.21 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) 5.9 [2] / z(~) 0.000020 [0.000007] / cz 5.90 [2.00]   (~) B 1979IAUS...30...57E
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:
41.13 [0.35] A 2007A&A...474..653V
Spectral type is made of 3 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
  • bibcode : bibcode of the spectral type reference
Spectral type:
B8IVn C 2009ApJ...694.1085V
Syntax of fluxes (or magnitudes) is : "filter-name flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, J, H, K, u, g, r, i, z
  • 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 (8) :
U 0.88 [~] C 2002yCat.2237....0D
B 1.24 [~] C 2002yCat.2237....0D
V 1.40 [0.05] C 2009ApJ...694.1085V
R 1.37 [~] C 2002yCat.2237....0D
I 1.47 [~] C 2002yCat.2237....0D
J 1.54 [~] C 2002yCat.2237....0D
H 1.57 [~] C 2002yCat.2237....0D
K 1.62 [0.06] C 2009ApJ...694.1085V
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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!).

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 1 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (51) :

LTT 12716 FK5 380 LSPM J1008+1158 SKY# 19511
* alf Leo GC 13926 2MASS J10082229+1158018 SRS 30380
* 32 Leo GCRV 6417 N30 2414 SV* ZI 793
** STF 5006A GEN# +1.00087901A NAME REGULUS TD1 14585
ADS 7654 A GJ 9316 A NLTT 23490 TYC 833-1381-1
AG+12 1199 HD 87901 NSV 4750 UBV 9452
ASCC 949713 HGAM 596 PLX 2384 UBV M 15960
BD+12 2149 HIC 49669 PMC 90-93 274 USNO-B1.0 1019-00203254
CCDM J10083+1159A HIP 49669 PMSC 10030+1227A uvby98 100087901 A
CSI+12 2149 1 HR 3982 PPM 127140 WDS J10084+1158A
CSV 101099 IRAS 10056+1212 RAFGL 4771S YPAC 43
2E 2231 IRC +10226 ROT 1536 [HFE83] 708
2E 1005.5+1213 JP11 1896 SAO 98967

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References (720 between 1850 and 2015)
Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

from: to:

                                  Sort reference summaries by : (not exhaustive, explanation here)

                                 


Measurements (22 types) :


diameter : 1    distance : 1    Einstein : 1    Fe_H : 1    GEN : 1    Hbet1 : 21    IRAS : 1    IRC : 1    IUE : 19    JP11 : 7    MK : 39    oRV : 8   
PLX : 5    PM : 4    pos : 3    posa : 1    ROT : 3    SAO : 1    UBV : 19    uvby1 : 13    V* : 1    velocities : 9   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database

Catalogue information from VizieR :

Generic search by coordinates (radius: 5 arcsec)

AG+12 1199 BD+12 2149 CCDM J10083+1159A FK5 380 GJ 9316 A
HD 87901 HIC 49669 HIP 49669 HR 3982 IRAS 10056+1212
IRC +10226 LSPM J1008+1158 2MASS J10082229+1158018 NLTT 23490 NSV 4750
PPM 127140 RAFGL 4771S SAO 98967 TYC 833-1381-1 USNO-B1.0 1019-00203254
WDS J10084+1158A

Indications mainly about references on other documents
Notes (1) :
     

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 .

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2015.07.31-15:29:38

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