Registry · deep sky

RX J0123.1+3420

BLLac SIMBAD BLL 134 papers

harvesting The full record is being pulled from the archives right now — measurement tables, the Gaia row, catalogue photometry. This page will fill itself in.

Right ascension: 01h 23m 08.64s
Declination: +34° 20′ 48.7″
Galactic l, b: 130.35, -28.07
Parallax: 0.0603 mas
Redshift z: 0.27235
Radial velocity: 70,845 km/s
Proper motion: -0.166, 0.04 mas/yr

Also known as

48 identifiers

1ES 0120+34.01FHL J0122.7+34251RXS J012308.9+3420482E 0120.3+34042E 3692FGL J0122.6+34252MASS J01230864+34204852MAXI J0123+3422WHSP J012308.5+3420482XMM J012308.4+3420483FGL J0122.8+34233FHL J0123.0+34223HSP J012308.6+3420484FGL J0123.1+342187GB 012020.0+3405189Y-MST J0123+3421BWE 0120+3405CLASS J012308.6374+342048.651FL8Y J0123.1+3421Gaia DR3 319958948834886272GB6 B0120+3405ILT J012308.58+342048.0LAMOST J012308.63+342048.6NVSS J012308+342047PBC J0123.1+3421RGB J0123+343RX J0123.1+3420SDSS J012308.64+342048.6SHBL J012308.7+342049SRGA J012308.6+342043SWIFT J0122.9+3420SWIFT J0123.0+3421TGSSADR J012308.6+342046TIC 61158549WISE J012308.63+342048.5WISEA J012308.63+342048.4WN B0120.3+3405[BSF97] J012308.8+342050[DGT2001] B0120+340[FPK2009] J012309+342049[MGL2009] BZB J0123+3420[MML2015] 5BZB J0123+3420[VV2000b] J012308.7+342051[VV2003b] J012308.7+342051[VV2006b] J012308.7+342051[VV2010b] J012308.7+342051[VV98b] J012308.7+342051[XCB97] J0123+342

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
V* V527 And	EclBin	414.5″	10.64
IC 1683	GtowardsGroup	491″	—
HD 8375	SB*	509.7″	6.28

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/rx-j0123-1-3420 · Registry entry updated 2026-08-14.