Registry · deep sky

HELLAS2XMM 50900031

Seyfert1 SIMBAD Sy1 5 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 43m 49.10s
Declination: −10° 37′ 43.0″
Galactic l, b: 36.028, -29.74
Magnitude V: 20.6
Redshift z: 0.55
Radial velocity: 1.2357e+05 km/s

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
HELLAS2XMM 50900013	Seyfert2	303.1″	23.2
Mrk 509	Seyfert1	457.6″	13.12
UCAC2 28113774	Star	476.3″	14.54
[L92b] Mark A3	Star	522.2″	14.82
ATO J310.9730-10.4827	RRLyrae	529.3″	17.64

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/hellas2xmm-50900031 · Registry entry updated 2026-08-14.