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VizieR

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phase: 3

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J/A+AS/128/315

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Distance ρ
Position angle θ
Distance (x,y)
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J2000
B1950
Ecl. J2000

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IAU/CDS nomenclature

Mirrors

	J/A+AS/128/315	450		BVRI photometry of blazars (Jia+ 1998) ReadMe+ftp 1998A&AS..128..315G Similar Catalogs Objects Post annotation
1.	J/A+AS/128/315/table1		Observation for 8 Blazars (280 rows) metaJ/A+AS/128/315/table1

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Constraint

Explain (UCD)

recno

Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) (RECORD)

Name

(char)

Object designation (meta.id;meta.main) (ID_MAIN)

Date

"Y:M:D"

⁽ⁿ⁾Date (time.epoch) (TIME_DATE)

Heliocentric Julian date (time.epoch) (TIME_DATE)

mag

magnitude in "Band" band (phot.mag;em.opt.B) (PHOT_JHN_MISC)

e_mag

mag

rms uncertainty on mag (stat.error) (ERROR)

Band

(char)

[BVRI] Observed band (meta.note) (REMARKS)

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⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

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https://cdsannotations.u-strasbg.fr/annotations/vizierTable//

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→ Cite/acknowledge VizieR catalogue
→ Rules of usage of VizieR data

Contact - Legals

If the access to catalogues with VizieR was helpful for your research work,the following acknowledgment would be appreciated: This research has made use of the VizieR catalogue access tool, CDS, Strasbourg, France (DOI: 10.26093/cds/vizier). The original description of the VizieR service was published in A&AS 143, 23