Registry · deep sky

RX J2042.1+2426

BLLac SIMBAD BLL 56 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: 20h 42m 06.05s
Declination: +24° 26′ 52.3″
Galactic l, b: 67.766, -10.8
Parallax: 0.0275 mas
Redshift z: 0.104
Radial velocity: 29,565 km/s
Proper motion: -0.159, 0.192 mas/yr
Angular size: 0.223′ × 0.21′

Also known as

32 identifiers

1FGL J2042.2+24271FHL J2042.4+24261RXS J204206.3+2426552FGL J2042.1+24282MASS J20420604+24265232MASX J20420606+24265182WHSP J204205.9+2426523FGL J2042.1+24283FHL J2042.0+24283HSP J204206.0+2426524FGL J2042.1+242787GB 203954.9+241604BWE 2039+2416CLASS J204206.0521+242652.353FL8Y J2042.1+2427Gaia DR2 1843417525571154176Gaia DR3 1843417525571154176GB6 B2039+2416LEDA 1707499MITG J204207+2425MITG J204208+2426NVSS J204206+242652PSO J310.5252+24.4478RGB J2042.1+2426RGB J2042+244RX J2042.1+2426TGSSADR J204206.1+242652TIC 408269083WISE J204206.04+242652.3XMMSL1 J204206.1+242653[BSF97] J204206.05+242652.3[MML2015] 5BZG J2042+2426

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
CIZA J2042.1+2426	ClG	27.58″	—
Gaia DR2 1843418144046450944	Star	133″	—
Gaia DR2 1843428177090064000	Star	481″	—
HD 347198	Star	488.6″	10.79

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-j2042-1-2426 · Registry entry updated 2026-08-14.