pi Tau

Query : pi Tau

Basic data :
* pi. Tau -- 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,...), IR (IRAS,IRC), X (1ES), UV (TD1), NIR (2MASS)
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) : 		04 26 36.3714456672 +14 42 49.614689520 (Optical) [ 0.0960 0.0469 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
FK5 coord. (ep=J2000 eq=2000) : 		04 26 36.3732566729 +14 42 49.600025629 [ 0.0960 0.0469 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
FK4 coord. (ep=B1950 eq=1950) : 		04 23 46.6593003389 +14 36 08.250251823 [ 0.0960 0.0469 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) : 		180.9893271091799 -23.1210681671806 [ 0.0960 0.0469 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 : 		-8.802 -30.335 [0.162 0.095 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) 31.268900 [0.005717] / z(spectroscopic) 0.000104 [0.000000] / cz 31.27 [0.01]
   (NIR) A 2020AJ....160..120J
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): 		8.0403 [0.1054] 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: 		G7IIIFe-0.5 C 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 6.39 [~] C 2002yCat.2237....0D
B 5.67 [~] C 2002yCat.2237....0D
V 4.69 [~] C 2002yCat.2237....0D
R 3.97 [~] C 2002yCat.2237....0D
G 4.409833 [0.002834] C 2020yCat.1350....0G
I 3.46 [~] C 2002yCat.2237....0D
J 3.01 [~] C 2002yCat.2237....0D
H 2.621 [0.194] D 2003yCat.2246....0C
K 2.44 [~] C 2002yCat.2237....0D
SIMBAD within arcmin
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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 (34) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* 73 Tau GSC 00680-00993 PLX 981 UBV 4278
* pi. Tau HD 28100 PLX 981.00 UBV M 10133
AG+14 398 HIC 20732 PPM 119898 WEB 3977
AP J04263638+1442494 HIP 20732 ROT 644 YPAC 345
BD+14 697 HR 1396 SAO 93935 YZ 14 1295
1ES 0423+14.6 IRAS 04237+1436 SKY# 6857 Gaia DR2 3310973422151441024
GC 5383 IRC +10059 TD1 3166 Gaia DR3 3310973422151441024
GCRV 2585 JP11 888 TIC 60905900
GEN# +1.00028100 2MASS J04263638+1442494 TYC 680-993-1

References (10 between 2019 and 2024) (Total 109)
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


velocities : 8    distance : 2    ROT : 2    Fe_H : 10    PLX : 5    PM : 4    MK : 7   

   

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)

velocities (8) 

 |typ|    Value    R   m.e.  |A (Nmes)|na,Q,dom ,   res    D| Obs.date | Rem.  |Or|     Reference     |
 ------------------------------------------------------------------------------------------------------
 |v  |   31.268900    0.00571|A (    )|s , ,NIR ,           |          |       |  |2020AJ....160..120J|

distance (2) 

 | distance Q unit|  err-        err+     | method |     reference     |
 -----------------------------------------------------------------------
 |  124.373   pc  |  -1.6304     +1.6304  |paral   |2020yCat.1350....0G|

rot (2) 

 |  Vsini  [  err   ] (mes)|Q|     reference     |
 -------------------------------------------------
 |< 17     [        ] (   )|D|1970CoKwa.189....0U|

fe_h (10) 

 | Teff  log.g | Fe_H  c|CompStar |CatNo|     Reference     |
 ------------------------------------------------------------
 |  4881 2.55  |-0.26   |SUN      |     |2022A&A...663A...4S|

plx (5) 

 |    plx    :    m.e     R |     reference     |
 ------------------------------------------------
m|   7.17    :   0.81       |1997A&A...323L..49P|

pm (4) 

 |  pm-ra  [   m.e   ]|  pm-de  [   m.e   ]|syst|     reference     |
 --------------------------------------------------------------------
 |   -8.802[    0.162]|  -30.335[    0.095]|ICRS|2020yCat.1350....0G|

mk (7) 

 |ds/mss|           Spectral type            |     reference     |
 -----------------------------------------------------------------
 |  /   |G8III                               |2020MNRAS.491.2280S|
Observing logs


ISO : 55   

   

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)

iso (55)

The 2 columns in color are computed by VizieR, and are not part of the original data.
Note: Quick-look images of the data, and specific documentation, are accessible by clicking on the TDT observation identifier
VI/111/isolog
Post annotation 		ISO Observation Log (ISO Data Centre, 2004) [ReadMe+ftp]

*The ISO Observation Log[image] (36737 rows) (Note)		img(gal)
start AladinLite 
 Full      _r        TDT    AOT    minLam  maxLam  Target                                 oStart         oLen    recno   FOV                  RAJ2000   DEJ2000 cal  ObsID    abs  PropID  
        arcmin                      um      um                                             s             s                                     deg       deg                              


    1     0.026  84201702  PHT19    5.61    8.95  HR1396 on center                1998-03-06T18:26:04    210     35024  180" D              066.6520  +14.7138      PHT_CAL  +    P1BEAM02
    2     0.026  84201703  PHT03    5.61    8.95  HR1396 Y-scan                   1998-03-06T18:30:24   2396     35025  360"x180"           066.6520  +14.7138      PHT_CAL  +    P1BEAM02
    3     0.026  84201704  PHT03    5.61    8.95  HR1396 Z-scan                   1998-03-06T19:11:12   2396     35026  360"x180"           066.6520  +14.7138      PHT_CAL  +    P1BEAM02
    4     0.026  84201803  PHT03    5.61    8.95  HR1396 Y-scan                   1998-03-06T21:24:02    812     35052  228"x180"           066.6520  +14.7138      PHT_CAL  +    P1BEAM03
    5     0.026  84201804  PHT03    5.61    8.95  HR1396 Z-scan                   1998-03-06T21:38:22    812     35053  228"x180"           066.6520  +14.7138      PHT_CAL  +    P1BEAM03
    6     0.290  84201828  PHT19    5.61    8.95  HR1396 leg4 18                  1998-03-06T23:11:28    210     35077  180" D              066.6466  +14.7131      PHT_CAL  +    P1BEAM03
    7     0.296  84201810  PHT19    5.61    8.95  HR1396 leg1 18                  1998-03-06T22:09:10    210     35059  180" D              066.6512  +14.7187      PHT_CAL  +    P1BEAM03
    8     0.297  84201822  PHT19    5.61    8.95  HR1396 leg3 18                  1998-03-06T22:50:42    210     35071  180" D              066.6524  +14.7089      PHT_CAL  +    P1BEAM03
    9     0.319  84201816  PHT19    5.61    8.95  HR1396 leg2 18                  1998-03-06T22:29:56    210     35065  180" D              066.6570  +14.7145      PHT_CAL  +    P1BEAM03
   10     0.337  84201827  PHT18    5.61    8.95  HR1396 leg4 21                  1998-03-06T23:08:22    144     35076  180" D              066.6458  +14.7130      PHT_CAL  +    P1BEAM03
   11     0.350  84201809  PHT18    5.61    8.95  HR1396 leg1 21                  1998-03-06T22:06:04    144     35058  180" D              066.6512  +14.7196      PHT_CAL  +    P1BEAM03
   12     0.356  84201821  PHT18    5.61    8.95  HR1396 leg3 21                  1998-03-06T22:47:36    144     35070  180" D              066.6529  +14.7080      PHT_CAL  +    P1BEAM03
   13     0.372  84201815  PHT18    5.61    8.95  HR1396 leg2 21                  1998-03-06T22:26:50    144     35064  180" D              066.6579  +14.7146      PHT_CAL  +    P1BEAM03
   14     0.389  84201826  PHT18    5.61    8.95  HR1396 leg4 24                  1998-03-06T23:05:16    144     35075  180" D              066.6449  +14.7129      PHT_CAL  +    P1BEAM03
   15     0.399  84201808  PHT18    5.61    8.95  HR1396 leg1 24                  1998-03-06T22:02:58    144     35057  180" D              066.6508  +14.7204      PHT_CAL  +    P1BEAM03
   16     0.403  84201820  PHT18    5.61    8.95  HR1396 leg3 24                  1998-03-06T22:44:30    144     35069  180" D              066.6529  +14.7072      PHT_CAL  +    P1BEAM03
   17     0.419  84201814  PHT18    5.61    8.95  HR1396 leg2 24                  1998-03-06T22:23:44    144     35063  180" D              066.6587  +14.7147      PHT_CAL  +    P1BEAM03
   18     0.437  84201825  PHT18    5.61    8.95  HR1396 leg4 27                  1998-03-06T23:02:10    144     35074  180" D              066.6441  +14.7127      PHT_CAL  +    P1BEAM03
   19     0.447  84201807  PHT18    5.61    8.95  HR1396 leg1 27                  1998-03-06T21:59:52    144     35056  180" D              066.6508  +14.7212      PHT_CAL  +    P1BEAM03
   20     0.450  84201819  PHT18    5.61    8.95  HR1396 leg3 27                  1998-03-06T22:41:24    144     35068  180" D              066.6529  +14.7064      PHT_CAL  +    P1BEAM03
   21     0.466  84201813  PHT18    5.61    8.95  HR1396 leg2 27                  1998-03-06T22:20:38    148     35062  180" D              066.6595  +14.7148      PHT_CAL  +    P1BEAM03
   22     0.484  84201824  PHT18    5.61    8.95  HR1396 leg4 30                  1998-03-06T22:59:04    144     35073  180" D              066.6433  +14.7126      PHT_CAL  +    P1BEAM03
   23     0.495  84201806  PHT18    5.61    8.95  HR1396 leg1 30                  1998-03-06T21:56:46    144     35055  180" D              066.6508  +14.7220      PHT_CAL  +    P1BEAM03
   24     0.507  84201818  PHT18    5.61    8.95  HR1396 leg3 30                  1998-03-06T22:38:18    144     35067  180" D              066.6533  +14.7055      PHT_CAL  +    P1BEAM03
   25     0.519  84201812  PHT18    5.61    8.95  HR1396 leg2 30                  1998-03-06T22:17:32    144     35061  180" D              066.6604  +14.7150      PHT_CAL  +    P1BEAM03
   26     0.583  84201823  PHT17    5.61    8.95  HR1396 leg4 36                  1998-03-06T22:55:00    202     35072  180" D              066.6416  +14.7124      PHT_CAL  +    P1BEAM03
   27     0.599  84201805  PHT17    5.61    8.95  HR1396 leg1 36                  1998-03-06T21:52:42    202     35054  180" D              066.6504  +14.7237      PHT_CAL  +    P1BEAM03
   28     0.602  84201817  PHT17    5.61    8.95  HR1396 leg3 36                  1998-03-06T22:34:14    202     35066  180" D              066.6533  +14.7039      PHT_CAL  +    P1BEAM03
   29     0.613  84201811  PHT17    5.61    8.95  HR1396 leg2 36                  1998-03-06T22:13:28    202     35060  180" D              066.6620  +14.7152      PHT_CAL  +    P1BEAM03
   30     1.386  84201728  PHT19    5.61    8.95  HR1396 leg4 84                  1998-03-06T21:10:54    210     35050  180" D              066.6279  +14.7105      PHT_CAL  +    P1BEAM02
   31     1.397  84201710  PHT19    5.61    8.95  HR1396 leg1 84                  1998-03-06T20:08:28    210     35032  180" D              066.6487  +14.7369      PHT_CAL  +    P1BEAM02
   32     1.403  84201722  PHT19    5.61    8.95  HR1396 leg3 84                  1998-03-06T20:50:06    210     35044  180" D              066.6554  +14.6907      PHT_CAL  +    P1BEAM02
   33     1.421  84201716  PHT19    5.61    8.95  HR1396 leg2 84                  1998-03-06T20:29:16    210     35038  180" D              066.6758  +14.7170      PHT_CAL  +    P1BEAM02
   34     1.439  84201727  PHT18    5.61    8.95  HR1396 leg4 87                  1998-03-06T21:07:48    144     35049  180" D              066.6270  +14.7104      PHT_CAL  +    P1BEAM02
   35     1.447  84201709  PHT18    5.61    8.95  HR1396 leg1 87                  1998-03-06T20:05:22    142     35031  180" D              066.6483  +14.7377      PHT_CAL  +    P1BEAM02
   36     1.456  84201721  PHT18    5.61    8.95  HR1396 leg3 87                  1998-03-06T20:47:00    142     35043  180" D              066.6554  +14.6898      PHT_CAL  +    P1BEAM02
   37     1.468  84201715  PHT18    5.61    8.95  HR1396 leg2 87                  1998-03-06T20:26:10    144     35037  180" D              066.6766  +14.7172      PHT_CAL  +    P1BEAM02
   38     1.486  84201726  PHT18    5.61    8.95  HR1396 leg4 90                  1998-03-06T21:04:42    144     35048  180" D              066.6262  +14.7103      PHT_CAL  +    P1BEAM02
   39     1.495  84201708  PHT18    5.61    8.95  HR1396 leg1 90                  1998-03-06T20:02:16    142     35030  180" D              066.6483  +14.7385      PHT_CAL  +    P1BEAM02
   40     1.504  84201720  PHT18    5.61    8.95  HR1396 leg3 90                  1998-03-06T20:43:54    142     35042  180" D              066.6554  +14.6890      PHT_CAL  +    P1BEAM02
   41     1.515  84201714  PHT18    5.61    8.95  HR1396 leg2 90                  1998-03-06T20:23:04    144     35036  180" D              066.6774  +14.7173      PHT_CAL  +    P1BEAM02
   42     1.538  84201725  PHT18    5.61    8.95  HR1396 leg4 93                  1998-03-06T21:01:36    144     35047  180" D              066.6253  +14.7102      PHT_CAL  +    P1BEAM02
   43     1.549  84201707  PHT18    5.61    8.95  HR1396 leg1 93                  1998-03-06T19:59:10    142     35029  180" D              066.6483  +14.7394      PHT_CAL  +    P1BEAM02
   44     1.555  84201719  PHT18    5.61    8.95  HR1396 leg3 93                  1998-03-06T20:40:48    142     35041  180" D              066.6558  +14.6882      PHT_CAL  +    P1BEAM02
   45     1.568  84201713  PHT18    5.61    8.95  HR1396 leg2 93                  1998-03-06T20:19:58    144     35035  180" D              066.6783  +14.7174      PHT_CAL  +    P1BEAM02
   46     1.585  84201724  PHT18    5.61    8.95  HR1396 leg4 96                  1998-03-06T20:58:30    144     35046  180" D              066.6245  +14.7101      PHT_CAL  +    P1BEAM02
   47     1.599  84201706  PHT18    5.61    8.95  HR1396 leg1 96                  1998-03-06T19:56:04    142     35028  180" D              066.6479  +14.7402      PHT_CAL  +    P1BEAM02
   48     1.602  84201718  PHT18    5.61    8.95  HR1396 leg3 96                  1998-03-06T20:37:42    142     35040  180" D              066.6558  +14.6874      PHT_CAL  +    P1BEAM02
   49     1.614  84201712  PHT18    5.61    8.95  HR1396 leg2 96                  1998-03-06T20:16:52    144     35034  180" D              066.6791  +14.7175      PHT_CAL  +    P1BEAM02
   50     1.680  84201723  PHT17    5.61    8.95  HR1396 leg4 102                 1998-03-06T20:54:26    202     35045  180" D              066.6229  +14.7098      PHT_CAL  +    P1BEAM02
   51     1.700  84201705  PHT17    5.61    8.95  HR1396 leg1 102                 1998-03-06T19:52:00    200     35027  180" D              066.6479  +14.7419      PHT_CAL  +    P1BEAM02
   52     1.703  84201717  PHT17    5.61    8.95  HR1396 leg3 102                 1998-03-06T20:33:38    200     35039  180" D              066.6558  +14.6857      PHT_CAL  +    P1BEAM02
   53     1.714  84201711  PHT17    5.61    8.95  HR1396 leg2 102                 1998-03-06T20:12:48    202     35033  180" D              066.6808  +14.7177      PHT_CAL  +    P1BEAM02
   54    11.576  84201701  PHT17    5.61    8.95  HR1396 off position             1998-03-06T18:21:42    202     35023  180" D              066.8500  +14.6944      PHT_CAL  +    P1BEAM02
   55    11.576  84201801  PHT17    5.61    8.95  HR1396 off position             1998-03-06T21:15:26    200     35051  180" D              066.8500  +14.6944      PHT_CAL  +    P1BEAM03

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : pi Tau

Link by name to the catalogue in VizieR :

AG+14 398 AP J04263638+1442494 BD+14 697 GSC 00680-00993 HD 28100
HIC 20732 HIP 20732 HR 1396 IRAS 04237+1436 IRC +10059
2MASS J04263638+1442494 PLX 981 PPM 119898 SAO 93935 TD1 3166
TYC 680-993-1 Gaia DR2 3310973422151441024 Gaia DR3 3310973422151441024

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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 .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

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