8C 2007+777

Query : 8C 2007+777
C.D.S. - SIMBAD4 rel 1.7 - 2019.09.21CEST03:33:21

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


Basic data :
8C 2007+777 -- BL Lac - type object
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:
Rad (Ref,8C,...), BLL (Ref,[VV2000b],...), Bla (Ref,[DGT2001],...), gam (1FGL,2FGL,...), QSO (Ref,QSO,...), X (Ref,2E,...), Bz? (Ref,[SRM2005]), AGN (Ref,CGRaBS), IR (2MASS,WISE), V* (AAVSO), * (Gaia)
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 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) :
20 05 30.9981060951 +77 52 43.245329882 (Optical) [ 0.0326 0.0344 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 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) :
20 07 20.4661933980 +77 43 58.042300947 [ 0.0326 0.0344 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 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) :
110.4647106194257 +22.7343064251491 [ 0.0326 0.0344 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 :
0.098 0.143 [0.060 0.063 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) 85729 [~] / z(spectroscopic) 0.342 [~] / cz 102529 [~]
   D 2011NewA...16..503M
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):
0.0100 [0.0345] A 2018yCat.1345....0G
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) :
V 16.5 [~] E ~
R 17.36 [~] D 2008ApJS..175...97H
G 16.0419 [0.0306] C 2018yCat.1345....0G
J 15.462 [0.067] C 2003yCat.2246....0C
H 14.552 [0.052] C 2003yCat.2246....0C
K 13.827 [0.070] C 2003yCat.2246....0C
SIMBAD with radius arcmin
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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!).
Some important notes on this object about identifications and objects associations.
notes:


The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (58) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

8C 2007+777 JVAS B2007+777 S5 2007+777 [IN88] 2007+777
6C 200718+774350 JVAS J2005+7752 S5 2007+776 [MGL2009] BZB J2005+7752
CGRaBS J2005+7752 1Jy 2007+777 S5 2007+77 [MGL2015] 5BZB J2005+7752
CJ1 2007+777 1Jy 2007+77 VSOP J2005+7752 [P82] 2007+776
CJF B2007+777 KNOWS J200539+775252 WB 2007+7743 [SRM2005] J200530.99+775243.2
CLASS J200530.9974+775243.238 MASIV J2005+7752 WISE J200531.01+775243.2 [VV2000b] J200531.1+775243
2E 4325 2MASS J20053100+7752432 WISE J200530.98+775243.2 [VV2003b] J200531.1+775243
2E 2007.3+7744 MY 200730.1+774408.1 WMAP J2005+7755 [VV2006b] J200531.1+775243
1FGL J2006.0+7751 MY 200730.1+775253.9 WMAP J2005+7754 [VV2010b] J200531.1+775243
2FGL J2004.5+7754 NVSS J200531+775243 WMAP J2005+7752 [VV98b] J200531.1+775243
3FGL J2005.2+7752 QSO B2007+776 WMAP J2005+7753 AAVSO 2009+77
3FHL J2005.9+7753 QSO J2005+77 WMAP J2004+7746 Gaia DR1 2291355706567653888
ICRF J200530.9+775243 QSO B2007+777 WN B2007.3+7743 Gaia DR2 2291355710864269824
IERS B2007+777 RORF 2007+777 [DGT2001] B2007+777
IVS B2007+777 1RXS J200529.2+775240 [HB93] 2007+777

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References (395 between 1850 and 2019) (Total 395)
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 : 8    PM : 1    PLX : 1   

   

Observing logs


ISO : 57   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : 8C 2007+777

Link by name to the catalogue in VizieR :

2E 4325 IERS B2007+777 2MASS J20053100+7752432 NVSS J200531+775243 1RXS J200529.2+775240
VSOP J2005+7752 WISE J200531.01+775243.2 WISE J200530.98+775243.2 WN B2007.3+7743 Gaia DR1 2291355706567653888
Gaia DR2 2291355710864269824

Search by coordinates in Vizier (radius: 5 arcsec)


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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2019.09.21-03:33:21

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