VizieR

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VizieR

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phase: 3

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J/A+AS/132/83

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Distance ρ
Position angle θ
Distance (x,y)
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J2000
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IAU/CDS nomenclature

Mirrors

	J/A+AS/132/83	452		BVRI photometry of 7 BL Lac objects (Bai+ 1998) ReadMe+ftp 1998A&AS..132...83B Similar Catalogs Objects Post annotation
1.	J/A+AS/132/83/table2		Photometric data of seven BL Lac objects (341 rows) metaJ/A+AS/132/83/table2

Simple Constraint List Of Constraints

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Constraint

Explain (UCD)

recno

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

Date

"Y:M:D"

⁽ⁿ⁾Observation date (time.epoch) (TIME_DATE)

Julian Date (time.epoch) (TIME_DATE)

mag

Magnitude (phot.mag;em.opt.V) (PHOT_MAG_OPTICAL)

e_mag

mag

One sigma uncertainty on mag (stat.error) (ERROR)

Band

(char)

[BVRI] Filter used (meta.code;instr.filter) (INST_FILTER_CODE)

Object

(char)

Name of the object observed (meta.id;meta.main) (ID_MAIN)

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⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

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	Display UCD1+ UCD1

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