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4C 40.25

Blazar SIMBAD Bla 187 papers

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Right ascension: 10h 23m 11.57s
Declination: +39° 48′ 15.4″
Galactic l, b: 180.85, 56.88
Magnitude V: 17.5
Parallax: 0.0448 mas
Redshift z: 1.2548
Radial velocity: 2.0124e+05 km/s
Proper motion: -0.06, -0.029 mas/yr
Angular size: 1.18e-05′ × 4.83e-06′

Also known as

76 identifiers

1FGL J1023.6+39372FGL J1023.6+39472MASS J10231159+39481522MASSI J1023115+3948153FGL J1023.1+39524C 40.254FGL J1023.1+39496C 102014+4003317C 102014.59+400329.0087GB 102014.0+4003059Y-MST J1023+3949ATO J155.7981+39.8042B2 1020+40B2.3 1020+40B3 1020+400B3VLA 1020+400BWE 1020+4003CGRaBS J1023+3948CJ1 1020+400CJF B1020+400CLASS J102311.5661+394815.378CRATES J102310+394759FBQS J1023+3948FIRST J102311.5+394815FL8Y J1023.1+3949Gaia DR1 756029727177261184Gaia DR2 756029731472171648Gaia DR3 756029731472171648GB6 B1020+4003[HB93] 1020+400ICRF J102311.5+394815IERS B1020+400ILT J102311.66+394817.7IVS B1020+400JVAS B1020+400JVAS J1023+3948JVAS J1023+398LAMOST J102311.56+394815.4LEDA 2820661MY 102014.4+394813.5MY 102014.4+400324.8NVSS J102311+394817PB 193QSO B1020+400QSO J1023+3948RBPL J1023+3948RFC J1023+3948RGB J1023.2+3948RGB J1023+397ARGB J1023+398BRORF 1020+400RX J1023.2+3948S4 1020+40S4 1020+400SDSS J102311.56+394815.4TGSSADR J102311.5+394816TIC 8173873TXS 1020+400VIPS J10231+3948VLSS J1023.1+3948VLSSr J102311.0+394825[VV96] J102311.5+394817[VV98] J102311.5+394817WB 1020+4003WISE J102311.57+394815.4WISEA J102311.56+394815.3WK 192WN B1020.2+4003[LBC2010] B1020+400[MGL2009] BZQ J1023+3948[MML2015] 5BZQ J1023+3948[VV2000] J102311.5+394817[VV2003] J102311.5+394817[VV2006] J102311.5+394817[VV2010] J102311.5+394817[ZEH2003] RX J1023.1+3948 1

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
[VV2000] J102333.5+395312	QSO	390.2″	18.43
HD 89809	**	535.5″	8.43

Provenance

where this card came from

Archive	Read at (UTC)	Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/4c-40-25 · Registry entry updated 2026-08-14.